THE SKY,
ON YOUR TERMS.
A live US weather command center: real-time radar you can scrub like a flight recorder, a tornado alarm wired to your home — and forecasts honest enough to tell you when they're guessing.
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FREE
$0 · FOREVER
- Live national radar — full-US NEXRAD composite, 3-hour scrubbable loop, play / pause / drag
- Every severe alert, mapped — tornado & severe thunderstorm warnings and watches, flash floods, live polygons + ticker
- Home tornado alarm — set your home and a radius; a full-screen siren fires the moment a warning polygon touches it
- Storm cells & fronts — rotation markers, hail cores, storm vectors, and surface fronts on the map
- NWS forecast — current conditions, 12 hours, 7 days, straight from your local forecast office
PRO
INVITE-ONLY — WAITLIST OPEN
- Forecaster's Desk — the local NWS meteorologist's actual written reasoning, not just icons
- Honest uncertainty — 31 ensemble runs as ranges, with LOCKED / LEANING / UNCERTAIN verdicts per day
- The Waffle Meter — how much the forecast has flip-flopped for each day, out in the open
- Forecast report card — yesterday's promise vs the measured high, graded daily
- Model bake-off — NWS vs GFS vs ECMWF vs ICON vs GEM, a running scoreboard for your sky
- Rain nowcast — 15-minute precipitation timing for your exact address, next 6 hours
- Gear check + activity index — what to wear, when to hike / ride / mow
- Vs history — today against 10 years of this exact date
- Kiosk mode — a wall-tablet storm console for your house
Sign in free, then join the Pro waitlist with one tap from inside the app.
WHY STORMGRID EXISTS
Most weather apps sell certainty they don't have: a single crisp number for next Thursday, no explanation, no accountability when it's wrong. STORMGRID shows the ranges, the reasoning, and the receipts — and keeps a public score of its own accuracy. When the forecast is shaky, you'll know. When a tornado warning touches your home, you'll really know.