DayCast Weather

DayCast is a field weather app for storm spotters, chasers, and people who watch the sky themselves. RADAR • Single-site NEXRAD products: super-resolution reflectivity, base and storm- relative velocity, correlation coefficient, differential reflectivity, composite reflectivity • Live regional mosaic with animation and frame scrubbing • Forecast radar frames (Pro) SEVERE WEATHER • SPC Day 1 outlook probabilities for tornado, hail, and wind • Mesoscale discussions • Nearby storm reports • National Weather Service watches, warnings, and advisories, with time-sensitive notifications SHORT TERM • Next-hour precipitation at 15-minute resolution • HRRR short-term precipitation for the continental US, shown next to the standard model so you can see when the two disagree • Hourly and 10-day forecasts AI READS (DayCast Pro) • Explain Radar — a plain-language read of the frame you are looking at • Photo analysis — send a photo of the sky and get a read on the structure • Morning brief — a short written summary of the day's setup • Chat with current conditions attached ALSO • Home Screen and Lock Screen widgets, Live Activity • Wildfire layer (NASA FIRMS) with air quality • Saved locations, Siri shortcuts WHAT'S FREE Radar, NWS alerts, SPC products, forecasts, and next-hour precipitation are free. DayCast Pro adds the AI features, forecast radar, Live Activity, and unlimited saved locations. AI has a daily limit. DATA SOURCES Open-Meteo, the National Weather Service, the Storm Prediction Center, NEXRAD Level III via Iowa Environmental Mesonet, RainViewer, and NASA FIRMS. DayCast is not affiliated with NOAA, the National Weather Service, or any government agency. It is an interpretation aid, not a warning source. Always follow official warnings and the guidance of local emergency officials. Terms of Use (EULA): https://scubasteve1999.github.io/GrokCast/terms.html Privacy Policy: https://scubasteve1999.github.io/GrokCast/privacy.html