Free tools
Weather tools you can use right now
Everything here is free and most of it works without an account. Built for independent forecasters, storm chasers, and anyone who reads a sounding for fun.
Hurricane Tracker
Every active tropical cyclone, with the NHC's forecast position and intensity at each lead time.
Updated every advisory
Snow Day Predictor
The odds school gets cancelled, city by city — with the factors behind every score.
Updated hourly
Storm Reports
Everything the NWS spotter network logged in the last 24 hours — tornadoes, hail, wind, flooding.
Updated every 10 min
Map Image Maker
Draw forecast regions on a map, set colors and labels, and download a PNG ready to post.
No account needed
Sounding Viewer
Skew-T Log-P soundings for RAOB stations across the US. Read the profile, then download it as a PNG to post.
No account needed
Forecast Verification
Compare published storm forecasts against real NWS station observations and IEM storm reports.
Built into every storm forecast
Map Import
Turn a Google My Maps link, GeoJSON, or KML file into editable forecast regions.
No account needed
Map Templates
Prebuilt region sets for common forecast areas, ready to drop into a new forecast.
Free to browse
City Weather
Seven-day National Weather Service forecasts for major US cities, updated through the day.
NWS data