StormCast: Weather Alerts

StormCast Labs

Contains ads

About this app

Free tornado, flood & severe weather alerts — plus the only weather app with real USGS river flood gauge monitoring built in. Built for people who take weather seriously.

Every data source is official and free — National Weather Service, USGS, National Hurricane Center, AirNow, and NOAA. No paywalls on safety features. Ever.

⚠️ SEVERE WEATHER ALERTS
Get tornado warnings, flood watches, winter storm advisories, and every other NWS alert type pushed to your phone within seconds of being issued — even when your screen is off. View full alert details including onset, expiration, and affected areas. Alert history keeps 7 days on record.

🌩️ LIVE WEATHER RADAR
Animated NWS composite radar with 20-frame playback. Play, pause, and scrub through storm movement. Active NWS alert polygons overlaid on the map so you see exactly where warnings are in effect.

🌊 RIVER LEVEL MONITORING & FLOOD ALERTS
Track water levels at over 12,700 USGS river gauges nationwide on an interactive map. Gauges are color-coded by NWS flood category — normal, action, minor, moderate, major. Get push notifications when your river crosses into a new flood stage.

🌀 HURRICANE TRACKER
Monitor active Atlantic and Pacific tropical storms and hurricanes with real NHC forecast tracks, wind speed, pressure, storm category, and GOES satellite imagery. Get notified when a storm forms, intensifies, or comes within 500 miles of you.

📻 EMERGENCY SCANNER RADIO
Listen to live police, fire, EMS, and weather radio scanner feeds directly in the app. Add any stream URL — if your local scanner has a feed, StormCast can play it.

🔥 FIRE WEATHER CONDITIONS
Local fire danger rating with Red Flag Warning monitoring. Know when wind, humidity, and temperature combine to create dangerous fire conditions in your area.

🌍 EARTHQUAKE ALERTS
Real-time USGS earthquake monitoring with push notifications based on magnitude and distance from your location. M2.5+ quakes checked every 10 minutes.

🌌 SPACE WEATHER & AURORA ALERTS
Live Kp index, geomagnetic storm notifications, CME arrival tracking, NOAA SWPC alert banners, and Northern Lights visibility guidance based on your latitude.

😷 AIR QUALITY ALERTS
AQI monitoring with push notifications when air quality reaches unhealthy levels in your area.

📍 WEATHER DASHBOARD
Current conditions at a glance: temperature, feels-like, wind, humidity, pressure, UV index, air quality, sunrise/sunset, rain nowcast, 7-day forecast, and an Outdoor Activity score.

📲 WHY STORMCAST?
• One app instead of five — stop switching between NWS, USGS, radar, and scanner apps
• Push notifications for tornado warnings, flood alerts, earthquakes, hurricanes, lightning, aurora, and more
• Works anywhere in the United States
• Built by one developer in rural Virginia who needed this app to exist

⚠️ StormCast is a supplemental awareness tool. Always confirm life-safety information with official sources such as the National Weather Service or your local emergency management agency.

What’s new

What's New in 5.3.
Bug fixes and improvements

New: Neighborhood Reports — see and share real-time local conditions (downed trees, power lines, flooded or icy roads, mudslides, and more) reported by people near you, plus official NWS spotter reports, all on one map
Find it anytime from the menu, right under Precip Forecast
Report alerts cover your whole county or city, so you hear about what matters nearby
Turn Neighborhood Report notifications on or off separately in Settings