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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
<title>Lightning Watch — Multi-Park</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.9.4/leaflet.min.js"></script>
<style>
:root{
--bg:#0b1016; --panel:#141c26; --panel2:#1b2532; --line:#26303d;
--txt:#e8eef5; --dim:#8fa0b3; --faint:#5d6d7f;
--clear:#2fbf71; --delay:#ff4d4f; --warn:#ffab2e; --acc:#4aa3ff;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{
margin:0;background:var(--bg);color:var(--txt);
font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
padding:14px;max-width:900px;margin:0 auto;
}
h1{font-size:19px;margin:0;letter-spacing:-.2px}
.sub{color:var(--dim);font-size:12px;margin-top:2px}
header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px}
button{
font:inherit;font-size:13px;font-weight:600;color:var(--txt);
background:var(--panel2);border:1px solid var(--line);border-radius:9px;
padding:8px 13px;cursor:pointer;
}
button:hover{background:#232f3f}
button.primary{background:var(--acc);border-color:var(--acc);color:#05121f}
button.sm{padding:5px 9px;font-size:12px}
button.danger{color:var(--delay)}
/* ---- status banner ---- */
#banner{
border-radius:14px;padding:16px 18px;margin-bottom:14px;
display:flex;align-items:center;gap:14px;border:1px solid var(--line);
background:var(--panel);
}
#banner.any-delay{background:rgba(255,77,79,.11);border-color:rgba(255,77,79,.45)}
#banner.all-clear{background:rgba(47,191,113,.09);border-color:rgba(47,191,113,.35)}
#bannerDot{width:13px;height:13px;border-radius:50%;background:var(--faint);flex:none}
#banner.any-delay #bannerDot{background:var(--delay);animation:pulse 1.4s infinite}
#banner.all-clear #bannerDot{background:var(--clear)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
#bannerTxt{font-size:17px;font-weight:700}
#bannerSub{font-size:12px;color:var(--dim);margin-top:1px}
/* ---- park cards ---- */
.park{
background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--faint);
border-radius:12px;padding:14px 16px;margin-bottom:10px;
}
.park.delay{border-left-color:var(--delay);background:rgba(255,77,79,.07)}
.park.clear{border-left-color:var(--clear)}
.park.recent{border-left-color:var(--warn)}
.prow{display:flex;justify-content:space-between;align-items:center;gap:12px}
.pname{font-weight:700;font-size:16px}
.pmeta{font-size:12px;color:var(--dim);margin-top:3px}
.timer{
font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:-1px;
font-size:34px;line-height:1;text-align:right;
}
.timer.delay{color:var(--delay)}
.timer.clear{color:var(--clear);font-size:20px;letter-spacing:0}
.timer.unknown{color:var(--faint);font-size:18px;letter-spacing:0}
.tlabel{font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.9px;text-align:right;margin-top:4px}
/* ---- heat ---- */
.heat{
display:inline-flex;align-items:baseline;gap:6px;margin-top:8px;
padding:4px 9px;border-radius:7px;font-size:12px;font-weight:600;
background:var(--panel2);border:1px solid var(--line);color:var(--dim);
}
.heat b{font-size:15px;font-variant-numeric:tabular-nums}
.heat.caution{background:rgba(255,171,46,.12);border-color:rgba(255,171,46,.4);color:#ffd08a}
.heat.xcaution{background:rgba(255,122,0,.14);border-color:rgba(255,122,0,.5);color:#ffb37a}
.heat.danger{background:rgba(255,45,45,.18);border-color:#ff2d2d;color:#ff6b6b}
.heat.extreme{background:#ff1f4b;border-color:#ff1f4b;color:#fff;animation:pulse 1.6s infinite}
#heatBanner{
display:none;border-radius:12px;padding:12px 15px;margin-bottom:12px;font-size:13px;
background:rgba(255,45,45,.14);border:1px solid #ff2d2d;color:#ff9b9b;
}
#heatBanner.on{display:block}
#heatBanner b{color:#fff}
.alertbox{
background:rgba(255,45,45,.16);border:1px solid #ff4d4f;border-radius:10px;
padding:10px 13px;margin-bottom:10px;font-size:12.5px;color:#ffb3b3;
}
.alertbox b{color:#fff;display:block;margin-bottom:2px}
.bar{height:4px;background:var(--panel2);border-radius:3px;margin-top:11px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--delay);transition:width 1s linear}
.widget{margin-top:11px}
.widget iframe{width:100%;height:300px;border:1px solid var(--line);border-radius:9px;background:#fff}
.wtoggle{font-size:11px;color:var(--acc);cursor:pointer;margin-top:9px;display:inline-block}
/* ---- settings ---- */
#settings{display:none;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:14px}
#settings.open{display:block}
fieldset{border:none;padding:0;margin:0 0 18px}
legend{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--dim);font-weight:700;margin-bottom:9px;padding:0}
label{display:block;font-size:12px;color:var(--dim);margin:9px 0 4px}
input,select{
width:100%;font:inherit;font-size:14px;background:var(--bg);color:var(--txt);
border:1px solid var(--line);border-radius:8px;padding:8px 10px;
}
input:focus,select:focus{outline:none;border-color:var(--acc)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.parkedit{background:var(--panel2);border-radius:9px;padding:11px;margin-bottom:9px}
.parkedit .grid3{display:grid;grid-template-columns:1fr 1fr 70px;gap:7px}
.hint{font-size:11px;color:var(--faint);margin-top:5px;line-height:1.4}
.warnbox{background:rgba(255,171,46,.1);border:1px solid rgba(255,171,46,.35);border-radius:9px;padding:11px;font-size:12px;color:#ffd08a;margin-bottom:14px}
/* ---- radar map ---- */
#mapCard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px}
#mapHead{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
#mapTitle{font-weight:700;font-size:15px}
#mapWrap{margin-top:11px;display:none}
#mapWrap.open{display:block}
#map{height:380px;border-radius:9px;border:1px solid var(--line);background:#0f151d}
.leaflet-container{background:#0f151d;font:inherit}
.leaflet-popup-content-wrapper,.leaflet-popup-tip{background:var(--panel2);color:var(--txt)}
.leaflet-popup-content{margin:9px 12px;font-size:13px}
.mapctl{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:9px;font-size:12px;color:var(--dim)}
.mapctl input[type=range]{width:110px;padding:0;accent-color:var(--acc)}
#frameLbl{font-variant-numeric:tabular-nums;min-width:58px;display:inline-block}
.legend{display:flex;gap:12px;flex-wrap:wrap;margin-top:9px;font-size:11px;color:var(--faint)}
.legend span{display:flex;align-items:center;gap:5px}
.swatch{width:10px;height:10px;border-radius:50%;display:inline-block}
.rampbar{height:8px;width:120px;border-radius:3px;background:linear-gradient(90deg,#04e9e7,#019ff4,#0300f4,#02fd02,#01c501,#008e00,#fdf802,#e5bc00,#fd9500,#fd0000,#d40000,#bc0000,#f800fd)}
footer{margin-top:18px;font-size:11px;color:var(--faint);line-height:1.6;border-top:1px solid var(--line);padding-top:12px}
.quota{font-variant-numeric:tabular-nums}
.err{color:var(--delay);font-size:12px;margin-top:8px}
@media(max-width:520px){ .grid{grid-template-columns:1fr} .timer{font-size:29px} }
</style>
</head>
<body>
<header>
<div>
<h1>⚡ Lightning Watch</h1>
<div class="sub" id="statusLine">Not polling — open Settings to add your API key</div>
</div>
<div style="display:flex;gap:7px;flex:none">
<button class="sm" id="btnOnsite">On site</button>
<button class="sm" id="btnDemo">Demo</button>
<button class="sm" id="btnSettings">Settings</button>
</div>
</header>
<div class="warnbox">
<strong>This is a planning aid, not an official all-clear.</strong> These parks use horn/strobe
systems that <em>predict</em> lightning from the electrostatic field — they will often sound
<em>before</em> the first strike exists for this page to see, and their all-clear runs on their
own algorithm, not this 30-minute clock. <strong>The horn wins. Always.</strong>
<div style="margin-top:6px">One 15-second blast = stop. Three 5-second blasts = all clear.</div>
</div>
<div id="banner"><div id="bannerDot"></div><div><div id="bannerTxt">Waiting for data</div><div id="bannerSub">—</div></div></div>
<div id="nwsAlerts"></div>
<div id="heatBanner"></div>
<div id="mapCard">
<div id="mapHead">
<div>
<div id="mapTitle">Radar & strikes</div>
<div class="sub" style="font-size:11px">NEXRAD mosaic — free, costs nothing against your API quota</div>
</div>
<button class="sm" id="btnMap">Show map</button>
</div>
<div id="mapWrap">
<div id="map"></div>
<div class="mapctl">
<button class="sm" id="btnPlay">▶ Loop</button>
<span id="frameLbl">now</span>
<span>Radar</span><input type="range" id="opacity" min="0" max="100" value="65">
<button class="sm" id="btnFit">Recenter</button>
</div>
<div class="legend">
<span><i class="swatch" style="background:#4aa3ff"></i>park</span>
<span><i class="swatch" style="background:#ff4d4f"></i>on delay</span>
<span><i class="swatch" style="background:#2fbf71"></i>clear</span>
<span><i class="swatch" style="background:#fff;box-shadow:0 0 0 2px #ffab2e"></i>strike (last 5 min)</span>
<span>dashed ring = 10 mi trigger radius</span>
<span style="align-items:center">reflectivity <i class="rampbar"></i> heavy</span>
</div>
</div>
</div>
<div id="parks"></div>
<div class="err" id="err"></div>
<div id="settings">
<fieldset>
<legend>Xweather API</legend>
<div class="grid">
<div><label>Client ID</label><input id="cid" placeholder="from data.portal.xweather.com" autocomplete="off"></div>
<div><label>Client Secret</label><input id="csec" type="password" placeholder="••••••••" autocomplete="off"></div>
</div>
<div class="hint">Free tier = 15,000 accesses/month. The <code>/lightning</code> endpoint bills at a <strong>10× multiplier</strong>, so you get ~1,500 lightning queries per month. Adaptive polling below keeps you under that.</div>
</fieldset>
<fieldset>
<legend>Rules</legend>
<div class="grid">
<div><label>All-clear wait (minutes)</label><input id="allclear" type="number" min="5" max="60" value="30"></div>
<div><label>Default trigger radius (miles)</label><input id="defradius" type="number" min="1" max="30" value="10"></div>
</div>
<div class="hint">Standard is 30 minutes from the last strike within 10 miles. The clock restarts on every new strike inside the radius.</div>
</fieldset>
<fieldset>
<legend>Heat</legend>
<div class="grid">
<div><label>Alert metric</label>
<select id="heatMetric">
<option value="hi">Heat index (feels-like) — recommended</option>
<option value="air">Air temperature only</option>
</select>
</div>
<div><label>Bright-red threshold (°F)</label><input id="hotF" type="number" min="80" max="130" value="103"></div>
</div>
<div class="hint">
Temperature comes from the National Weather Service — free, no key, no quota.<br>
<strong>103°F heat index is the NWS "Danger" line</strong>, and NWS Melbourne (which covers
Orlando) doesn't issue a Heat Advisory until the index hits 108. A 95°F <em>air</em>
threshold will glow red on most summer afternoons here, which trains you to ignore it.
Set it where it means something.<br>
Note: Florida's Zachary Martin Act requires schools to measure <strong>WBGT on site</strong>.
Heat index is not WBGT and does not satisfy that rule.
</div>
</fieldset>
<fieldset>
<legend>Polling & budget</legend>
<div class="grid">
<div><label>Idle interval (minutes)</label><input id="idleMin" type="number" min="1" max="120" value="30"></div>
<div><label>Active interval (seconds)</label><input id="actSec" type="number" min="60" max="900" value="180"></div>
</div>
<div class="grid">
<div><label>Hours per month you're actually on site</label><input id="onsiteHrs" type="number" min="0" max="500" value="60"></div>
<div><label>Watch hours per day when idle</label><input id="idleHrs" type="number" min="0" max="24" value="0"></div>
</div>
<div id="budget" class="hint"></div>
<div class="hint">Polls slowly (or not at all) by default and speeds up when strikes appear within 25 miles, any park is on delay, or you press <strong>On site</strong>. Keep the projection under 1,500 queries.</div>
</fieldset>
<fieldset>
<legend>Parks</legend>
<div id="parkEdits"></div>
<button class="sm" id="btnAddPark">+ Add park</button>
<div class="hint">Get coordinates: open the park in Google Maps, right-click the field → click the lat/long to copy. Paste as separate lat and long. Optional widget URL embeds the facility's own Earth Networks display underneath the card.</div>
</fieldset>
<fieldset>
<legend>Phone alerts (ntfy.sh)</legend>
<label>Topic name</label>
<input id="ntfy" placeholder="e.g. doc-lightning-7f3k9" autocomplete="off">
<div class="hint">Install the free <strong>ntfy</strong> app (iOS/Android), subscribe to this exact topic, and you'll get a push when a park goes on delay or clears. Pick something long and unguessable — topics are public.</div>
</fieldset>
<div style="display:flex;gap:9px">
<button class="primary" id="btnSave">Save & start</button>
<button id="btnNotif">Enable browser alerts</button>
</div>
</div>
<footer>
<div>Lightning data © Vaisala Xweather. Radar/other conditions not included.</div>
<div class="quota" id="quota"></div>
<div id="lastPoll"></div>
</footer>
<script>
"use strict";
/* ---------- storage (degrades to memory) ---------- */
var mem = {};
function save(k,v){ try{ localStorage.setItem(k, JSON.stringify(v)); }catch(e){ mem[k]=v; } }
function load(k,d){
try{ var s=localStorage.getItem(k); return s===null ? (k in mem ? mem[k] : d) : JSON.parse(s); }
catch(e){ return (k in mem) ? mem[k] : d; }
}
/* ---------- config ---------- */
var cfg = load("lw.cfg", {
cid:"", csec:"", allclear:30, defradius:10, idleMin:30, actSec:180, ntfy:"",
onsiteHrs:60, idleHrs:0, heatMetric:"hi", hotF:103,
parks:[
// Coordinates confirmed by DoC, 2026-07-30.
{ name:"Young Pine Park", lat:"28.49338", lon:"-81.23126", radius:10, widget:"" },
{ name:"Barber Park", lat:"28.49678", lon:"-81.31833", radius:10, widget:"" },
{ name:"Airport Lakes Park", lat:"28.46043", lon:"-81.31575", radius:10, widget:"" }
]
});
/* per-park runtime state: { lastStrike: ms epoch, dist: mi, status: 'clear'|'delay'|'unknown' } */
var state = load("lw.state", {});
var quota = load("lw.quota", { month:"", used:0 });
var timer=null, tick=null, demo=false, lastPollTs=0, recentActivity=false;
var onsiteUntil = load("lw.onsite", 0); // epoch ms; fast polling while in the future
var lastStrikes = []; // most recent strike set, reused by the map
var wx = {}; // per-park weather: {tempF, hiF, rh, wind, station, ts}
var wxStations = load("lw.stations", {}); // park name -> NWS station id (cached)
var nwsAlerts = []; // active NWS alerts near the parks
var wxTimer = null;
/* ---------- helpers ---------- */
function $(id){ return document.getElementById(id); }
function haversineMi(a,b,c,d){
var R=3958.8, p=Math.PI/180;
var dLat=(c-a)*p, dLon=(d-b)*p;
var x=Math.sin(dLat/2)*Math.sin(dLat/2)+Math.cos(a*p)*Math.cos(c*p)*Math.sin(dLon/2)*Math.sin(dLon/2);
return 2*R*Math.asin(Math.sqrt(x));
}
function fmt(s){
if(s<0) s=0;
var m=Math.floor(s/60), r=Math.floor(s%60);
return m+":"+(r<10?"0":"")+r;
}
function ago(ms){
var s=Math.floor((Date.now()-ms)/1000);
if(s<60) return s+"s ago";
if(s<3600) return Math.floor(s/60)+"m ago";
return Math.floor(s/3600)+"h ago";
}
function validParks(){
return cfg.parks.filter(function(p){
return p.name && p.lat!=="" && p.lon!=="" && isFinite(+p.lat) && isFinite(+p.lon);
});
}
function monthKey(){ var d=new Date(); return d.getFullYear()+"-"+(d.getMonth()+1); }
/* ---------- quota ---------- */
function bumpQuota(){
if(quota.month!==monthKey()){ quota={month:monthKey(),used:0}; }
quota.used += 10; // /lightning bills at 10x
save("lw.quota", quota);
renderQuota();
}
function renderQuota(){
if(quota.month!==monthKey()) quota={month:monthKey(),used:0};
var pct=Math.round(quota.used/15000*100);
$("quota").textContent = "Free-tier usage this month: "+quota.used.toLocaleString()+
" / 15,000 accesses ("+pct+"%) — "+Math.floor(quota.used/10)+" lightning queries";
}
/* ---------- alerts ---------- */
function notify(title, body){
try{
if("Notification" in window && Notification.permission==="granted"){
new Notification(title,{body:body, tag:title});
}
}catch(e){}
if(cfg.ntfy){
try{
fetch("https://ntfy.sh/"+encodeURIComponent(cfg.ntfy),{
method:"POST",
headers:{ "Title":title, "Priority":"high", "Tags":"zap" },
body:body
}).catch(function(){});
}catch(e){}
}
}
/* ---------- polling ---------- */
function centroid(ps){
var la=0,lo=0;
ps.forEach(function(p){ la+=+p.lat; lo+=+p.lon; });
return [la/ps.length, lo/ps.length];
}
function applyStrikes(strikes){
var ps=validParks(), changed=false;
lastStrikes=strikes; // kept for the map; no extra API cost
recentActivity=false;
ps.forEach(function(p){
var key=p.name, best=null;
var rad = +p.radius || cfg.defradius;
strikes.forEach(function(s){
var d=haversineMi(+p.lat,+p.lon,s.lat,s.lon);
if(d<=rad && (!best || s.ts>best.ts)) best={ts:s.ts,d:d};
if(d<=rad+15) recentActivity=true;
});
if(best){
var prev=state[key]||{};
if(!prev.lastStrike || best.ts>prev.lastStrike){
var wasClear = !prev.lastStrike ||
(Date.now()-prev.lastStrike)/1000 >= cfg.allclear*60;
state[key]={ lastStrike:best.ts, dist:best.d };
if(wasClear){
changed=true;
notify("⚡ DELAY — "+p.name,
"Strike "+best.d.toFixed(1)+" mi away. All-clear in "+cfg.allclear+" min if no further strikes.");
}
}
}
});
if(changed) save("lw.state", state);
}
function poll(){
var ps=validParks();
if(!ps.length){ $("err").textContent="Add at least one park with coordinates in Settings."; return; }
if(demo) return;
if(!cfg.cid || !cfg.csec){ $("err").textContent="Enter your Xweather Client ID and Secret in Settings."; return; }
var c=centroid(ps);
// one 100km-radius query has to reach every park, or some go blind
var far=ps.filter(function(p){ return haversineMi(c[0],c[1],+p.lat,+p.lon) > 58; });
if(far.length){
$("err").textContent="Your parks are too far apart for a single query — "+
far.map(function(p){return p.name;}).join(", ")+
" sit beyond the 100 km limit from the group's center. Split them into two "+
"copies of this page, or upgrade to the Lightning Enterprise add-on.";
return;
}
var url="https://data.api.xweather.com/lightning/closest"+
"?p="+c[0].toFixed(4)+","+c[1].toFixed(4)+
"&radius=100km&limit=1000&format=json"+
"&client_id="+encodeURIComponent(cfg.cid)+
"&client_secret="+encodeURIComponent(cfg.csec);
fetch(url).then(function(r){ return r.json(); }).then(function(j){
bumpQuota();
lastPollTs=Date.now();
if(!j.success){
$("err").textContent="API error: "+(j.error && j.error.description || "unknown");
return;
}
$("err").textContent="";
var strikes=(j.response||[]).map(function(o){
return { lat:o.loc.lat, lon:o.loc.long, ts:(o.ob.timestampMS || o.ob.timestamp*1000) };
});
applyStrikes(strikes);
render();
drawParks(); drawStrikes();
reschedule();
}).catch(function(e){
$("err").textContent="Request failed: "+e.message+
" (if this says CORS, you'll need the Cloudflare Worker version — see the companion file)";
});
}
function anyDelay(){
return validParks().some(function(p){
var s=state[p.name];
return s && s.lastStrike && (Date.now()-s.lastStrike)/1000 < cfg.allclear*60;
});
}
function onsite(){ return Date.now() < onsiteUntil; }
function reschedule(){
clearTimeout(timer);
if(demo) return;
var fast = anyDelay() || recentActivity || onsite();
var idleOff = !fast && cfg.idleHrs === 0; // background watching disabled
if(idleOff){
$("statusLine").textContent = "Standby — press On site when you head to a park";
return; // spend nothing
}
var ms = fast ? cfg.actSec*1000 : cfg.idleMin*60*1000;
$("statusLine").textContent = (fast
? "Active — checking every "+cfg.actSec+"s"+(onsite()?" (on site)":"")
: "Standby — checking every "+cfg.idleMin+" min");
timer=setTimeout(poll, ms);
}
/* projected monthly free-tier usage from current settings */
function renderBudget(){
var el=$("budget"); if(!el) return;
var oh=+$("onsiteHrs").value||0, ih=+$("idleHrs").value||0;
var aS=+$("actSec").value||180, iM=+$("idleMin").value||30;
var qActive = oh * (3600/aS);
var qIdle = ih * 30 * (60/iM);
var q = Math.round(qActive + qIdle), acc = q*10, over = q > 1500;
el.innerHTML = "Projected: <strong>"+q.toLocaleString()+" queries/mo</strong> ("+
acc.toLocaleString()+" accesses of 15,000) — "+
Math.round(qActive)+" on site + "+Math.round(qIdle)+" standby. "+
(over ? '<span style="color:var(--delay)"><strong>Over the free tier.</strong> Raise the intervals, cut standby hours, or plan to pay for overage.</span>'
: '<span style="color:var(--clear)">Fits the free tier.</span>');
}
/* ---------- render ---------- */
function render(){
var ps=validParks(), wrap=$("parks");
if(!ps.length){
wrap.innerHTML='<div class="park"><div class="pname">No parks configured</div>'+
'<div class="pmeta">Open Settings and add each park\'s name and coordinates.</div></div>';
return;
}
var html="", delays=0, soonest=null;
ps.forEach(function(p){
var s=state[p.name], cls="clear", tcls="clear", tval="CLEAR", tlab="no strikes in range", pct=0, meta;
if(!s || !s.lastStrike){
cls=""; tcls="unknown"; tval="—"; tlab="no data yet";
meta="Radius "+(p.radius||cfg.defradius)+" mi · awaiting first poll";
} else {
var elapsed=(Date.now()-s.lastStrike)/1000, remain=cfg.allclear*60-elapsed;
meta="Last strike "+s.dist.toFixed(1)+" mi · "+ago(s.lastStrike)+" · radius "+(p.radius||cfg.defradius)+" mi";
if(remain>0){
delays++; cls="delay"; tcls="delay"; tval=fmt(remain); tlab="until all-clear";
pct=Math.max(0,Math.min(100, remain/(cfg.allclear*60)*100));
if(soonest===null || remain<soonest) soonest=remain;
} else if(elapsed < cfg.allclear*60*2){
cls="recent"; tval="CLEAR"; tlab="cleared "+fmt(-remain)+" ago";
} else {
tlab="clear";
}
}
var wid = p.widget ? '<div class="wtoggle" data-w="'+encodeURIComponent(p.widget)+'">Show facility\'s official display ▾</div><div class="widget" style="display:none"></div>' : '';
// heat chips
var w=wx[p.name], chip="";
if(w && w.tempF!=null){
var hv=heatValue(w), hc=heatClass(hv), lab=heatLabel(hv);
chip='<div class="heat '+hc+'"><b>'+Math.round(w.tempF)+'°F</b>'+
(w.hiF!=null && Math.round(w.hiF)!==Math.round(w.tempF)
? '<span>feels '+Math.round(w.hiF)+'°</span>' : '')+
(w.rh!=null ? '<span>'+Math.round(w.rh)+'% RH</span>' : '')+
(lab ? '<span>· '+lab+'</span>' : '')+'</div>';
}
if(w && w.wbgt!=null){
var b=wbgtBand(w.wbgt);
chip+='<div class="heat '+b.cls+'" style="margin-left:6px" title="'+esc(b.note)+'">'+
'<span>WBGT</span><b>'+w.wbgt.toFixed(0)+'°</b><span>· '+b.label+'</span>'+
(w.wbgtPeak!=null && w.wbgtPeak>w.wbgt
? '<span>· peaks '+w.wbgtPeak.toFixed(0)+'° by '+
new Date(w.wbgtPeakAt).toLocaleTimeString([], {hour:"numeric"})+'</span>' : '')+
'</div>'+
'<div class="hint" style="margin-top:5px">'+esc(b.note)+
' <span style="color:var(--warn)">Forecast grid, not a field reading.</span></div>';
} else if(w && w.wbgtErr){
chip+='<div class="hint" style="margin-top:5px">WBGT unavailable — '+
'weather.gov blocked the browser request. Use the Worker, or open '+
'<a style="color:var(--acc)" target="_blank" rel="noopener" href="https://digital.weather.gov/xml/sample_products/browser_interface/ndfdXMLclient.php?lat='+
(+p.lat).toFixed(4)+'&lon='+(+p.lon).toFixed(4)+
'&product=time-series&Unit=e&wbgt=wbgt">the NWS feed directly</a>.</div>';
}
html+='<div class="park '+cls+'">'+
'<div class="prow"><div><div class="pname">'+esc(p.name)+'</div><div class="pmeta">'+esc(meta)+'</div></div>'+
'<div><div class="timer '+tcls+'">'+tval+'</div><div class="tlabel">'+esc(tlab)+'</div></div></div>'+
chip+
(pct>0?'<div class="bar"><i style="width:'+pct+'%"></i></div>':'')+
wid+'</div>';
});
wrap.innerHTML=html;
Array.prototype.forEach.call(wrap.querySelectorAll(".wtoggle"), function(t){
t.onclick=function(){
var d=t.nextElementSibling;
if(d.style.display==="none"){
if(!d.innerHTML) d.innerHTML='<iframe src="'+decodeURIComponent(t.dataset.w)+'" loading="lazy"></iframe>';
d.style.display="block"; t.textContent="Hide facility's official display ▴";
} else { d.style.display="none"; t.textContent="Show facility's official display ▾"; }
};
});
var b=$("banner");
b.className = delays ? "any-delay" : "all-clear";
$("bannerTxt").textContent = delays
? delays+" park"+(delays>1?"s":"")+" on lightning delay"
: "All parks clear";
$("bannerSub").textContent = delays
? "Soonest all-clear in "+fmt(soonest)
: (lastPollTs ? "Last checked "+ago(lastPollTs) : "Waiting for first check");
$("lastPoll").textContent = lastPollTs ? "Last poll: "+new Date(lastPollTs).toLocaleTimeString() : "";
}
function esc(s){ return String(s).replace(/[&<>"]/g,function(c){return{"&":"&","<":"<",">":">",'"':"""}[c];}); }
/* ================= heat / NWS =================
api.weather.gov is free, keyless and unmetered. None of this touches the
Xweather budget. Refreshes every 10 minutes. */
function cToF(c){ return c==null ? null : c*9/5+32; }
/* NWS Rothfusz heat index, used when the station doesn't publish one */
function heatIndexF(T, RH){
if(T==null || RH==null) return null;
if(T < 80) return T;
var hi = -42.379 + 2.04901523*T + 10.14333127*RH
- 0.22475541*T*RH - 0.00683783*T*T - 0.05481717*RH*RH
+ 0.00122874*T*T*RH + 0.00085282*T*RH*RH - 0.00000199*T*T*RH*RH;
if(RH < 13 && T >= 80 && T <= 112) hi -= ((13-RH)/4)*Math.sqrt((17-Math.abs(T-95))/17);
else if(RH > 85 && T >= 80 && T <= 87) hi += ((RH-85)/10)*((87-T)/5);
return hi;
}
/* NWS heat-index categories */
function heatClass(v){
if(v==null) return "";
if(v >= 125) return "extreme";
if(v >= cfg.hotF || v >= 103) return "danger";
if(v >= 90) return "xcaution";
if(v >= 80) return "caution";
return "";
}
function heatLabel(v){
if(v==null) return "";
if(v >= 125) return "EXTREME DANGER";
if(v >= 103) return "DANGER";
if(v >= 90) return "Extreme caution";
if(v >= 80) return "Caution";
return "";
}
function heatValue(w){
if(!w) return null;
return cfg.heatMetric === "air" ? w.tempF : (w.hiF != null ? w.hiF : w.tempF);
}
/* ---- WBGT (NWS NDFD gridded forecast, free) ----
Florida / "Category 3" activity bands. Verify against your league's current
handbook — these are the widely published Zachary Martin Act thresholds. */
function wbgtBand(v){
if(v==null) return null;
if(v < 82.0) return {cls:"", label:"Full activity", note:"Normal practice. Watch unacclimatized athletes."};
if(v < 87.0) return {cls:"caution", label:"Monitor", note:"3 breaks/hr, min 4 min each. Watch at-risk athletes."};
if(v < 90.0) return {cls:"xcaution", label:"Modify", note:"Max 2 h practice. 4 breaks/hr, min 4 min. Helmets/shoulder pads only."};
if(v <= 92.0) return {cls:"danger", label:"Heavy modify", note:"Max 1 h. No protective equipment. 20 min total rest."};
return {cls:"extreme", label:"STOP", note:"No outdoor workouts. Delay until WBGT drops."};
}
function fetchWBGT(p){
var url="https://digital.weather.gov/xml/sample_products/browser_interface/ndfdXMLclient.php"+
"?lat="+(+p.lat).toFixed(4)+"&lon="+(+p.lon).toFixed(4)+
"&product=time-series&Unit=e&wbgt=wbgt";
fetch(url).then(function(r){ return r.text(); }).then(function(t){
var doc=new DOMParser().parseFromString(t,"text/xml");
var times=[].map.call(doc.getElementsByTagName("start-valid-time"),
function(n){ return new Date(n.textContent).getTime(); });
var vals =[].map.call(doc.getElementsByTagName("value"),
function(n){ return parseFloat(n.textContent); });
if(!vals.length) return;
// pick the forecast hour closest to now
var now=Date.now(), bi=0, bd=Infinity;
times.forEach(function(t2,i){ var d=Math.abs(t2-now); if(d<bd){bd=d;bi=i;} });
var peak=null, peakT=null;
times.forEach(function(t2,i){ // highest value in next 6 h
if(t2>=now && t2<=now+6*3600*1000 && vals[i]!=null &&
(peak===null || vals[i]>peak)){ peak=vals[i]; peakT=t2; }
});
wx[p.name]=wx[p.name]||{};
wx[p.name].wbgt=vals[bi];
wx[p.name].wbgtPeak=peak;
wx[p.name].wbgtPeakAt=peakT;
wx[p.name].wbgtTs=Date.now();
render(); renderHeat(); drawParks();
}).catch(function(){
wx[p.name]=wx[p.name]||{};
wx[p.name].wbgtErr=true;
render();
});
}
function fetchWeather(){
var ps = validParks();
if(!ps.length) return;
ps.forEach(function(p){
fetchWBGT(p);
var got = function(sid){
wxStations[p.name]=sid; save("lw.stations", wxStations);
fetch("https://api.weather.gov/stations/"+sid+"/observations/latest")
.then(function(r){ return r.json(); })
.then(function(j){
var o=j.properties; if(!o) return;
var t=cToF(o.temperature && o.temperature.value);
var rh=o.relativeHumidity && o.relativeHumidity.value;
var hi=cToF(o.heatIndex && o.heatIndex.value);
if(hi==null) hi=heatIndexF(t,rh);
wx[p.name]={
tempF:t, hiF:hi, rh:rh,
windMph:(o.windSpeed && o.windSpeed.value!=null) ? o.windSpeed.value*0.621371 : null,
desc:o.textDescription||"", station:sid, ts:Date.now()
};
render(); renderHeat(); drawParks();
}).catch(function(){});
};
if(wxStations[p.name]) return got(wxStations[p.name]);
fetch("https://api.weather.gov/points/"+(+p.lat).toFixed(4)+","+(+p.lon).toFixed(4))
.then(function(r){ return r.json(); })
.then(function(j){ return fetch(j.properties.observationStations); })
.then(function(r){ return r.json(); })
.then(function(j){
var f=j.features && j.features[0];
if(f) got(f.properties.stationIdentifier);
}).catch(function(){});
});
var c=centroid(ps);
fetch("https://api.weather.gov/alerts/active?point="+c[0].toFixed(4)+","+c[1].toFixed(4))
.then(function(r){ return r.json(); })
.then(function(j){
nwsAlerts=(j.features||[]).map(function(f){
return { event:f.properties.event, headline:f.properties.headline||"" };
});
renderHeat();
}).catch(function(){});
}
function renderHeat(){
var box=$("nwsAlerts");
box.innerHTML = nwsAlerts.length ? nwsAlerts.map(function(a){
return '<div class="alertbox"><b>'+esc(a.event)+'</b>'+esc(a.headline)+'</div>';
}).join("") : "";
var hottest=null, hp=null;
validParks().forEach(function(p){
var v=heatValue(wx[p.name]);
if(v!=null && (hottest===null || v>hottest)){ hottest=v; hp=p.name; }
});
// worst WBGT across the parks drives the banner; fall back to heat index
var worstW=null, wpk=null;
validParks().forEach(function(p){
var v=wx[p.name] && wx[p.name].wbgt;
if(v!=null && (worstW===null || v>worstW)){ worstW=v; wpk=p.name; }
});
var hb=$("heatBanner");
if(worstW!=null && worstW>=87){
var b=wbgtBand(worstW);
hb.className="on";
hb.innerHTML="<b>WBGT "+worstW.toFixed(0)+"°F at "+esc(wpk)+" — "+b.label+".</b> "+
esc(b.note)+" <span style='color:#ffd08a'>This is the NWS forecast grid. Florida's "+
"Zachary Martin Act requires a WBGT reading taken at the field — modelled values run "+
"cooler than reality, and the gap widens as it gets hotter.</span>";
} else if(hottest!=null && hottest>=cfg.hotF){
hb.className="on";
hb.innerHTML="<b>Heat "+(cfg.heatMetric==="air"?"":"index ")+Math.round(hottest)+"°F at "+
esc(hp)+" — "+heatLabel(hottest)+".</b> Water breaks, shaded rest, watch for cramping "+
"and confusion. Heat index is measured in shade and is not WBGT.";
} else hb.className="";
}
/* ================= radar map =================
Radar tiles: Iowa State's IEM NEXRAD mosaic (TMS). Free, public, no key,
and completely independent of your Xweather quota. Strike dots are drawn
from the poll we already made, so they cost nothing extra either. */
var map=null, radarLayers=[], frameIdx=11, playing=null, parkLayer=null, strikeLayer=null;
// 12 frames: 55 minutes ago -> now, in 5-minute steps
var FRAMES=["nexrad-n0q-m55m","nexrad-n0q-m50m","nexrad-n0q-m45m","nexrad-n0q-m40m",
"nexrad-n0q-m35m","nexrad-n0q-m30m","nexrad-n0q-m25m","nexrad-n0q-m20m",
"nexrad-n0q-m15m","nexrad-n0q-m10m","nexrad-n0q-m05m","nexrad-n0q"];
function initMap(){
if(map || typeof L==="undefined") return;
var ps=validParks();
var c = ps.length ? centroid(ps) : [28.4835,-81.2899];
map = L.map("map",{ zoomControl:true, attributionControl:true }).setView(c, 10);
L.tileLayer("https://tile.openstreetmap.org/{z}/{x}/{y}.png",{
maxZoom:18, attribution:"© OpenStreetMap"
}).addTo(map);
FRAMES.forEach(function(name,i){
var lyr=L.tileLayer(
"https://mesonet.agron.iastate.edu/cache/tile.py/1.0.0/"+name+"/{z}/{x}/{y}.png",
{ opacity: i===FRAMES.length-1 ? +$("opacity").value/100 : 0,
maxZoom:18, attribution:"Radar: Iowa State IEM / NEXRAD" });
lyr.addTo(map); radarLayers.push(lyr);
});
parkLayer=L.layerGroup().addTo(map);
strikeLayer=L.layerGroup().addTo(map);
drawParks(); drawStrikes(); fitParks();
}
function fitParks(){
if(!map) return;
var ps=validParks(); if(!ps.length) return;
var b=L.latLngBounds(ps.map(function(p){ return [+p.lat,+p.lon]; }));
map.fitBounds(b.pad(0.85));
}
function parkStatus(p){
var s=state[p.name];
if(!s || !s.lastStrike) return "unknown";
return (Date.now()-s.lastStrike)/1000 < cfg.allclear*60 ? "delay" : "clear";
}
function drawParks(){
if(!parkLayer) return;
parkLayer.clearLayers();
var COL={delay:"#ff4d4f", clear:"#2fbf71", unknown:"#5d6d7f"};
validParks().forEach(function(p){
var st=parkStatus(p), col=COL[st], rad=(+p.radius||cfg.defradius);
L.circle([+p.lat,+p.lon],{
radius: rad*1609.34, color:col, weight:1.5, dashArray:"5,5",
fillColor:col, fillOpacity:0.06
}).addTo(parkLayer);
var s=state[p.name], txt="";
if(st==="delay"){
var r=cfg.allclear*60-(Date.now()-s.lastStrike)/1000;
txt="<b>ON DELAY</b><br>all-clear in "+fmt(r)+"<br>last strike "+s.dist.toFixed(1)+" mi";
} else if(st==="clear"){ txt="<b>Clear</b><br>last strike "+ago(s.lastStrike); }
else { txt="No data yet"; }
var w=wx[p.name], wtxt="";
if(w && w.tempF!=null){
var hv=heatValue(w);
wtxt="<br>"+Math.round(w.tempF)+"°F"+
(w.hiF!=null?" (feels "+Math.round(w.hiF)+"°)":"")+
(heatLabel(hv)?" — <b style='color:#ff6b6b'>"+heatLabel(hv)+"</b>":"");
if(w.wbgt!=null){
var wb=wbgtBand(w.wbgt);
wtxt+="<br>WBGT "+w.wbgt.toFixed(0)+"° — <b>"+wb.label+"</b>";
}
}
L.circleMarker([+p.lat,+p.lon],{
radius:7, color:"#0b1016", weight:2, fillColor:col, fillOpacity:1
}).addTo(parkLayer).bindPopup("<b>"+esc(p.name)+"</b><br>"+txt+wtxt+
"<br><span style='color:#8fa0b3'>"+rad+" mi trigger radius</span>");
});
}
function drawStrikes(){
if(!strikeLayer) return;
strikeLayer.clearLayers();
var now=Date.now();
lastStrikes.forEach(function(s){
var ageMin=(now-s.ts)/60000;
var col = ageMin<1 ? "#ffffff" : ageMin<3 ? "#ffab2e" : "#ff7a00";
L.circleMarker([s.lat,s.lon],{
radius:4, color:"#ffab2e", weight:1.5, fillColor:col, fillOpacity:0.95
}).addTo(strikeLayer).bindPopup("Strike "+Math.round(ageMin*60)+"s ago");
});
}
function showFrame(i){
frameIdx=i;
var op=+$("opacity").value/100;
radarLayers.forEach(function(l,n){ l.setOpacity(n===i?op:0); });
var minsAgo=(FRAMES.length-1-i)*5;
$("frameLbl").textContent = minsAgo===0 ? "now" : "-"+minsAgo+" min";
}
$("btnMap").onclick=function(){
var w=$("mapWrap"), open=w.classList.toggle("open");
$("btnMap").textContent = open ? "Hide map" : "Show map";
if(open){ initMap(); setTimeout(function(){ if(map) map.invalidateSize(); },60); }
else if(playing){ clearInterval(playing); playing=null; $("btnPlay").textContent="▶ Loop"; }
};
$("btnPlay").onclick=function(){
if(playing){ clearInterval(playing); playing=null; $("btnPlay").textContent="▶ Loop"; showFrame(FRAMES.length-1); return; }
$("btnPlay").textContent="❚❚ Stop";
var i=0;
playing=setInterval(function(){
showFrame(i);
i++; if(i>=FRAMES.length){ i=0; }
}, 550);
};
$("opacity").oninput=function(){ showFrame(frameIdx); };
$("btnFit").onclick=fitParks;
/* clear-transition watcher, runs every second */
function heartbeat(){
validParks().forEach(function(p){
var s=state[p.name];
if(s && s.lastStrike && !s.cleared){
var remain=cfg.allclear*60-(Date.now()-s.lastStrike)/1000;
if(remain<=0){
s.cleared=true; save("lw.state",state);
notify("✅ ALL CLEAR — "+p.name, cfg.allclear+" minutes with no strikes within range.");
}
}
if(s && s.lastStrike && s.cleared){
var r2=cfg.allclear*60-(Date.now()-s.lastStrike)/1000;
if(r2>0) s.cleared=false; // new strike restarted the clock
}
});
updateOnsiteBtn();
render();
// refresh map markers every 5s (not every tick — it would close open popups)
if(map && $("mapWrap").classList.contains("open")){
if(!heartbeat.n) heartbeat.n=0;
if(++heartbeat.n % 5 === 0){ drawParks(); drawStrikes(); }
}
}
/* ---------- settings UI ---------- */
function renderParkEdits(){
var w=$("parkEdits"); w.innerHTML="";
cfg.parks.forEach(function(p,i){
var d=document.createElement("div");
d.className="parkedit";
d.innerHTML='<input data-f="name" placeholder="Park name" value="'+esc(p.name||"")+'">'+
'<div class="grid3" style="margin-top:7px">'+
'<input data-f="lat" placeholder="Latitude" value="'+esc(p.lat||"")+'">'+
'<input data-f="lon" placeholder="Longitude" value="'+esc(p.lon||"")+'">'+
'<input data-f="radius" type="number" placeholder="mi" value="'+esc(p.radius||10)+'">'+
'</div>'+
'<input data-f="widget" style="margin-top:7px" placeholder="Optional: Earth Networks widget URL" value="'+esc(p.widget||"")+'">'+
'<button class="sm danger" data-del="'+i+'" style="margin-top:7px">Remove</button>';
Array.prototype.forEach.call(d.querySelectorAll("input"), function(inp){
inp.oninput=function(){ cfg.parks[i][inp.dataset.f]=inp.value; };
});
d.querySelector("[data-del]").onclick=function(){ cfg.parks.splice(i,1); renderParkEdits(); };
w.appendChild(d);
});
}
var FIELDS=["cid","csec","allclear","defradius","idleMin","actSec","ntfy","onsiteHrs","idleHrs",
"heatMetric","hotF"];
function fillSettings(){
FIELDS.forEach(function(k){ if($(k)) $(k).value = cfg[k]; });
renderParkEdits();
renderBudget();
["onsiteHrs","idleHrs","actSec","idleMin"].forEach(function(k){
if($(k)) $(k).oninput = renderBudget;
});
}
$("btnSettings").onclick=function(){ $("settings").classList.toggle("open"); };
$("btnOnsite").onclick=function(){
if(onsite()){ onsiteUntil=0; }
else { onsiteUntil = Date.now() + 4*3600*1000; } // 4-hour session
save("lw.onsite", onsiteUntil);
updateOnsiteBtn();
if(onsite()) poll(); else reschedule();
};
function updateOnsiteBtn(){
var b=$("btnOnsite"); if(!b) return;
if(onsite()){
var mins=Math.ceil((onsiteUntil-Date.now())/60000);
b.textContent="On site "+Math.floor(mins/60)+"h"+(mins%60)+"m";
b.classList.add("primary");
} else { b.textContent="On site"; b.classList.remove("primary"); }
}
$("btnAddPark").onclick=function(){ cfg.parks.push({name:"",lat:"",lon:"",radius:cfg.defradius,widget:""}); renderParkEdits(); };
$("btnNotif").onclick=function(){ if("Notification" in window) Notification.requestPermission(); };
$("btnSave").onclick=function(){
cfg.cid=$("cid").value.trim(); cfg.csec=$("csec").value.trim(); cfg.ntfy=$("ntfy").value.trim();
cfg.allclear=+$("allclear").value||30; cfg.defradius=+$("defradius").value||10;
cfg.idleMin=+$("idleMin").value||30; cfg.actSec=+$("actSec").value||180;
cfg.onsiteHrs=+$("onsiteHrs").value||0; cfg.idleHrs=+$("idleHrs").value||0;
cfg.heatMetric=$("heatMetric").value; cfg.hotF=+$("hotF").value||103;
save("lw.cfg",cfg);
wxStations={}; save("lw.stations",wxStations); fetchWeather();
$("settings").classList.remove("open");
demo=false; $("btnDemo").textContent="Demo";
render(); poll();
};
$("btnDemo").onclick=function(){
demo=!demo;
$("btnDemo").textContent = demo ? "Stop demo" : "Demo";
if(demo){
clearTimeout(timer);
var ps=validParks();
if(!ps.length){
// seed two fake parks so the demo shows something
cfg.parks=[{name:"Demo Park A",lat:"28.24",lon:"-81.31",radius:10,widget:""},
{name:"Demo Park B",lat:"28.42",lon:"-81.47",radius:10,widget:""}];
ps=validParks(); renderParkEdits();
}
state[ps[0].name]={ lastStrike:Date.now()-4*60*1000, dist:6.2 };
if(ps[1]) state[ps[1].name]={ lastStrike:Date.now()-cfg.allclear*60*1000-120*1000, dist:8.8 };
// scatter fake strikes near the first park so the map has something to show
var p0=ps[0]; lastStrikes=[];
for(var i=0;i<22;i++){
lastStrikes.push({
lat:+p0.lat + (Math.random()-0.35)*0.16,
lon:+p0.lon + (Math.random()-0.55)*0.16,
ts: Date.now() - Math.random()*5*60*1000
});
}
lastPollTs=Date.now();
$("statusLine").textContent="DEMO MODE — simulated strikes, no API calls";
render(); drawParks(); drawStrikes();
} else {
state={}; lastStrikes=[]; save("lw.state",state);
render(); drawParks(); drawStrikes(); reschedule();
}
};
/* ---------- boot ---------- */
fillSettings();
renderQuota();
updateOnsiteBtn();
render();
tick=setInterval(heartbeat,1000);
fetchWeather(); // free, keyless
wxTimer=setInterval(fetchWeather, 10*60*1000); // refresh every 10 min
if(cfg.cid && cfg.csec && validParks().length) poll(); else $("settings").classList.add("open");
</script>
</body>
</html>