Ground Truth: Storm Reports
NWS hail, wind & tornado maps
Free · In‑App Purchases · Designed for iPad
Ground Truth puts every official NWS wind, hail, and tornado report on one fast, interactive map. Pick any date back to June 1999 or track severe weather reports as they come in today. Tap any pin for NWS report details and one-tap links to radar, local news, scanners, and more.
Purpose-built for spotters, chasers, disaster relief teams, emergency managers, and first responders, by a fellow disaster relief volunteer.
WHAT YOU CAN DO
- Plot tornado, hail, and damaging-wind reports for any day since June 1999
- View live Local Storm Reports (flash floods, wildfires, heavy rain, ice, and more)
- See EF-rated tornado damage tracks from official NWS surveys, with length, width, peak wind, and more
- Tap any report for instant links to radar, social feeds, scanners, and local media
- Download data for the field and keep working with zero signal
- Get alerts for NWS storm reports in the states you follow
- Share storm summary maps and videos
- Filter by report type, hail size, and wind speed
- View live warnings and radar
BUILT FOR
- Storm chasers and weather enthusiasts who want all the data
- SKYWARN spotters and meteorologists verifying what actually happened
- Emergency managers, CERT, ham radio operators and disaster-relief teams providing relief
- Roofing/restoration teams and insurance adjusters confirming hail and wind damage by date and location
FREE FOR EVERYONE
- Every 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 your state
- Zero ads
GROUND TRUTH PRO
- NWS Damage Survey Photos: ground photos from official NWS tornado surveys, county by county
- Unlimited Alerts: wind, hail, and tornado notifications
- Custom Action Links: add your own quick links and dynamic search queries to every report
Pro keeps the whole app ad-free and directly supports an independent developer, a fellow disaster-relief worker and volunteer who built Ground Truth to help others when storms hit.
DATA SOURCE
Reports, tracks, and survey photos come directly from the National Weather Service, NOAA Storm Prediction Center, and the NOAA Damage Assessment Toolkit, the same sources the professionals trust. We've built additional tools and resources on top of their verified data to help others 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.
Privacy Policy: https://redskyready.com/privacy-policy/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
COUNTY NOTIFICATIONS (Most Requested!)
Set custom alerts for specific counties
HIGHWAY & RIVER NAMES
Added highway and river labels to the map
HISTORIC OUTLOOKS & WARNINGS
Access retroactive outlooks and past NWS severe weather warning.
PERFORMANCE & STABILITY
Under-the-hood engine tweaks and minor bug fixes
The developer, Red Sky Ready, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Red Sky Ready LLC
- Size
- 101.7 MB
- Category
- Weather
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Ground Truth Pro $19.99
- Ground Truth Pro $2.99
- Copyright
- © 2026 Red Sky Ready LLC