Warn players without repeating the storm.

No token is required. The feed describes weather affecting Mudhaven's hosting area—not the game owner or player's location.

curl --fail-with-body --silent --show-error \
  https://mudhaven.net/api/v1/weather/alerts

{
  "ok": true,
  "status": "active",
  "active": true,
  "fresh": true,
  "revision": "64-character-sha256-revision",
  "message": "Severe weather is affecting Mudhaven's hosting area.",
  "alert": {
    "kind": "automatic",
    "tone": "danger",
    "label": "Hosting-area weather warning",
    "event": "Severe Thunderstorm Warning",
    "headline": "Severe Thunderstorm Warning issued until 1:00PM EDT by NWS",
    "message": "Severe weather is affecting Mudhaven's hosting area.",
    "severity": "Severe",
    "urgency": "Immediate",
    "certainty": "Observed",
    "starts_at": "2026-08-11T12:00:00-04:00",
    "expires_at": "2026-08-11T13:00:00-04:00",
    "source_url": "https://api.weather.gov/alerts/example"
  },
  "generated_at": "2026-08-11T12:01:00-04:00",
  "recommended_poll_seconds": 300
}

if payload.status == "active" and payload.revision != last_revision:
    broadcast(payload.alert.headline)
    broadcast(payload.alert.message)
    last_revision = payload.revision

Poll no faster than recommended_poll_seconds, normally 300 seconds. Keep the old revision after a timeout, invalid JSON, suppression, or unavailable response. A game may optionally announce an active-to-clear transition once.

var/const/MUDHAVEN_WEATHER_URL = "https://mudhaven.net/api/v1/weather/alerts"
var/mudhaven_weather_revision = null

/proc/check_mudhaven_weather()
    set waitfor = FALSE

    var/list/response = world.Export(MUDHAVEN_WEATHER_URL)
    if(!islist(response) || !response["CONTENT"])
        return

    var/list/payload = json_decode(file2text(response["CONTENT"]))
    if(!islist(payload) || payload["status"] != "active")
        return

    var/revision = payload["revision"]
    if(!revision || revision == mudhaven_weather_revision)
        return

    var/list/alert = payload["alert"]
    if(!islist(alert))
        return

    mudhaven_weather_revision = revision
    var/headline = alert["headline"]
    var/message = alert["message"]
    world << "<b>Hosting weather:</b> [html_encode(headline)] — [html_encode(message)]"

The response may contain safe banner copy, alert classification, official times, and an HTTPS weather.gov link. It never contains the monitoring ZIP code, coordinates, geometry, area description, official instructions, suppression reason, provider failure details, response bodies, or credentials.