Read the sky
like a forecaster.
Every major weather model the moment it runs, radar down to the raw Doppler scan, and storms tracked run by run, then checked against what actually fell. Built by one person for a few friends. No ads, nothing to sell.
Radar down to the raw scan.
The national mosaic every two minutes, and single radars straight from the Level II feed: reflectivity and velocity, tilt by tilt, drawn on your phone.
Warnings, lightning and SPC outlooks sit on the same map, and when rain is close, a live card says when it starts at your place and how hard it will fall.
- MRMS · quality-controlled national radar, every 2 min
- Level II · velocity to see rotation, beam by beam
- Now · rain type and rate for the next 3 hours
Every model. Every run. Side by side.
Each forecast hour is fetched and drawn the moment it's published, about 60 ms a map. Compare four models at once, step back through older runs, or subtract one run from the next to see exactly what changed.
ECMWF IFS, AIFS and EPS data © ECMWF, CC BY 4.0.
Any point, any hour, top to bottom.
Long-press anywhere on a map for a Skew-T from that model, run and hour. Drag a line for a cross section through the storm. CAPE, the freezing level, precip type and a plain-English summary come with it.
It finds the storm, then watches it change.
Storms are picked out of every run days ahead. The desk follows each one run by run: how the range is narrowing, which ensemble scenarios are in play, and the one factor that decides between them, all in a briefing where every number is cited.
Deciding factor: where the low tracks past the 40/70 benchmark.Illustration
Then it checks its homework.
Every model is scored every day against real weather stations, and a blend weights them by how well they've done lately. After each storm, the forecasts are lined up against measured snow and rain: who called it, and how early.
ECMWF IFS data © ECMWF, CC BY 4.0.
Climb the atmosphere.
Being planned: a meteorology course inside the app, taught on the weather over your own house. Five levels, from "what does 40% chance mean?" to college-level forecasting, each ending in the live app, with a forecast contest among friends alongside.
One person, one server, a few friends.
NOAA, ECMWF, Canada and Germany's models, NEXRAD, MRMS, GOES, the NWS and SPC.
Downloads just the pieces it needs as each hour is published, draws the maps and keeps the numbers.
An app that installs from the browser, with pushes for warnings and lightning nearby.
The forecast you'd build
if you could see everything.
WX is private: it runs for a handful of friends and isn't open for sign-ups. This page is here to show what one person and public weather data can do.
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