Real-time storm reports and 25+ years of NWS data on one fast, interactive map. Ground Truth maps every official tornado, hail, and wind report from the National Weather Service, so spotters, storm chasers, and disaster relief workers can see severe weather as it actually happened.

Pick any date back to June 1999, or track live storm reports and severe weather as they come in today. Tap any pin on the map for official NWS report details, plus one-tap links to radar, local news, live scanners, and power outage maps.

WHAT YOU CAN DO
- Map tornado, hail, and damaging-wind storm reports for any day since June 1999
- Track real-time severe weather with live Local Storm Reports (flash floods, wildfires, heavy rain, ice, and more)
- See EF-rated tornado damage tracks from official NWS surveys: length, width, peak wind, and more
- Tap any storm report for instant links to radar, social feeds, live scanners, and local news
- Download storm data for the field and keep working offline with zero signal
- Get damage alerts for NWS storm reports in your state
- Share a clean storm summaries maps instantly for any date
- Filter storm reports by type, hail size, and wind speed

BUILT FOR
- Storm chasers and weather enthusiasts who want the real data
- SKYWARN spotters and meteorologists verifying what actually happened
- Emergency managers, CERT, ham radio operators, and disaster relief teams
- Roofing and restoration crews, and insurance adjusters confirming hail and wind damage
- Parents who just want to know their kids are safe

WHY GROUND TRUTH
Most weather apps show you a forecast. Ground Truth shows you what actually happened: real, official storm reports and damage data from the National Weather Service, mapped and ready to act on. It is the storm map for people who respond when severe weather hits.

FREE FOR EVERYONE
- Every official NWS storm report since June 1999
- Live Local Storm Reports (wildfire, rainfall totals, ice accumulations, and more)
- EF-rated tornado damage tracks
- Offline downloads for the field
- Storm alerts for up to 3 states
- Zero ads

GROUND TRUTH PRO
- NWS Damage Survey Photos: real ground photos from official NWS tornado surveys, county by county
- Unlimited Alerts: real-time wind, hail, and tornado notifications
- Custom Action Links: add your own quick links and dynamic searches to every storm report

Pro keeps the whole app ad-free and directly supports an independent developer, a fellow disaster relief volunteer who built Ground Truth to help others when storms hit.

DATA SOURCE
Storm reports, damage tracks, and survey photos come directly from the National Weather Service (NWS), NOAA Storm Prediction Center (SPC), and the NOAA Damage Assessment Toolkit, the same official sources professionals trust. We build additional tools on top of their verified data to help people prepare and respond faster.

Ground Truth is an independent app from Red Sky Ready. It is not affiliated with or endorsed by NOAA or the National Weather Service.