# RexWeather — Weather with tornado history > Real-time weather and historical tornado data with interactive mapping. (iPhone/iPad app by Kassim Rasoulian.) - Source: https://appshunter.io/ios/app/rexweather/id6752983078 (this page in markdown: same URL + `.md`) - Developer: [Kassim Rasoulian](https://appshunter.io/developer/1841290817) - Category: Weather, Education - Price: Free - Rating: 4.80/5 from 8 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 8 MB - Languages: American English - Released: 2025-10-02 - Data updated: 2026-08-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/rexweather/id6752983078/reviews.md ## What is RexWeather? RexWeather is the most complete tornado and severe weather app on iOS. Whether you are chasing records, researching history, or watching the sky right now, everything you need is in one place. HISTORICAL TORNADO DATABASE 75 years of verified NOAA tornado records from 1950 to the present day, including current-year data from NOAA NCEI updated monthly. Search near any location with a customizable radius. Filter by date range and EF rating. Jump to famous outbreaks like the 2011 Super Outbreak with one tap. Tornado detail maps show real NOAA surveyed damage path polygons with per-segment EF intensity coloring when available, so you see exactly where each rating began and ended on the ground. TORNADO POTENTIAL SCORE A real-time 1-to-10 score showing how favorable atmospheric conditions are for tornado development at your location. It draws from active NWS warnings, NOAA SPC tornado probability outlooks, and GFS model data including CAPE, wind shear, 0-6km bulk shear, Lifted Index, and Convective Inhibition. Every factor is explained in plain language. When instability and shear are both elevated, the app warns you the atmosphere is loaded even before storms fire. LIVE NWS SEVERE WEATHER ALERTS Active National Weather Service alerts for your exact location appear on the home screen the moment they are issued. Purple for Particularly Dangerous Situation tornado warnings. Red for active tornado warnings. Amber for watches. Tap to read the full NWS text. SPC CONVECTIVE OUTLOOKS Day 1, Day 2, and Day 3 NOAA Storm Prediction Center outlook maps with categorical risk, tornado probability, wind, and hail layers. See your exact location risk and read the SPC forecaster discussion. WEATHER AND MORE Check weather and tornado risk for any city in the world, not just where you are. The app works fully offline with cached weather and tornado data when you need it. Customize your units, map style, and appearance. Canadian locations are fully supported with regional tornado potential scoring built in. ## Key features - Real-time weather conditions - Comprehensive tornado history (1950-present) - Interactive tornado path maps - Detailed event information - Smart radius technology - Native iOS design - Accessibility features ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/rexweather/id6752983078/reviews.md ### 5/5 — This is extremely good (2 criticisms though) *2026-07-16* This app is extremely good for tornado history. I have two very important suggestions though. This is probably planned but update it beyond march. Also, when looking at the live warning replays, please add tornado emergencies to the replay. They look the same as warnings on this app so I have to use a separate Wikipedia page to find emergencies. ### 5/5 — Great app *2026-07-06* Great app, the tornado locations are pretty accurate! ### 3/5 — Your missing some ef5s.. *2026-05-28* I have searched up the hackleburg ef5 and the greensburg, and Parkersburg and there are no ef5 tornadoes in those areas. Please the owner of this app take advantage of this and change it. ### 5/5 — Best Tornado App I’ve Ever Used *2026-03-15* Wow. What an app. King of Weather History. ### 5/5 — Tornado is cool *2026-03-04* btw im the son of the creator of this app and it’s pretty good but the only downsides are that the F scale windspeed things are the same as the EF scale so that needs to be changed and also the tornado tracks are just straight lines and not all curvy like the actual tornado tracks so once the developer of the app/my dad finds out how to add that he’ll add it ### 5/5 — Best Tornado History App Ever *2025-10-24* I use this to explore and learn about historical tornadoes around the country. My kids love it ## Frequently asked questions about RexWeather ### What kind of weather information does RexWeather provide? RexWeather offers up-to-the-minute weather conditions including temperature, humidity, wind speed, and atmospheric conditions. It also provides access to a comprehensive historical tornado database. ### How far back does the tornado history in RexWeather go? The app includes the complete NOAA Storm Prediction Center tornado database, spanning from 1950 to the present day. Each recorded event provides precise coordinates, EF scale ratings, and casualty data. ### Can I see tornado paths on a map with RexWeather? Yes, RexWeather features interactive maps that display tornado paths with color-coded intensity levels based on the Enhanced Fujita Scale. You can tap any tornado to view detailed information about its path and impact. ### Does RexWeather have ads? No, RexWeather is completely ad-free, allowing for an uninterrupted user experience. ### What devices is RexWeather compatible with? RexWeather is fully optimized for both iPhone and iPad, offering responsive layouts that adapt to each device's capabilities. ### How often is the tornado data updated in RexWeather? The app automatically refreshes data from NOAA SPC every 30 days. Manual refresh options are also available in the Settings menu for immediate updates. ### Is RexWeather suitable for younger users? RexWeather has an age rating of 4+, making it suitable for a wide range of users. The app's design and data presentation are intended to be accessible and informative. ### What makes RexWeather's design stand out? RexWeather features a clean, modern iOS design with weather-adaptive backgrounds and carefully crafted interfaces for an immersive experience. It is built with accessibility in mind, including VoiceOver support and Dynamic Type compatibility. ## Version history (last 5 releases) ### 1.4.2 — 2026-06-19 Apple Watch App RexWeather is now on your wrist. The companion watchOS app shows current conditions, tornado potential score, and SPC outlook — fetching data independently without needing your iPhone. A Tornado Potential complication is available for all major watch face families. Home Screen & Lock Screen Widgets Two new widgets bring real-time data to your home screen: Tornado Potential (score, band label, fill bar) and SPC Day 1 Outlook (categorical risk for your location). Both update automatically — no need to open the app. Tornado Legacy — Redesigned Tornado Legacy now opens full-screen directly from the home screen. Browse activity by decade with proportional bars colored by EF rating, then tap any decade to jump into Explorer pre-filtered to that time range. Tornado Explorer — Smarter Date Picker Date pickers now cap at the latest available NOAA data and display "Historical data available through [Month Year]" so you always know the coverage window. Selecting an invalid date range now auto-corrects instead of returning empty results. 2025 Tornado Database The SPC historical dataset has been updated to include 2025. Existing users are migrated automatically. Performance The full tornado dataset is now cached in memory after the first load, and filtering runs on a background thread. Map panning in Explorer is dramatically smoother. Bug Fixes Fixed an issue where tornadoes from large outbreaks were incorrectly merged into a single event at nationwide zoom. Fixed long-track tornadoes that passed through your search area but started outside it being excluded from results. ### 1.4.1 — 2026-05-11 Version 1.4.1 The Tornado Potential score is significantly more accurate in this update. The scoring engine now checks real-time storm spotter reports. If a tornado, funnel cloud, or wall cloud has been reported near your location in the last few hours, the score reflects that and a chip shows you exactly what was reported, how far away, and how long ago. Rotation scoring has been upgraded. The app now reads pressure-level wind data from the GFS model to calculate Storm Relative Helicity, the same metric professional meteorologists use to assess tornado rotation potential. Previous versions used a rough approximation. The Significant Tornado Parameter (STP) has been added. Rather than scoring each ingredient in isolation, STP checks whether all the key tornado ingredients are aligned at the same time. A strong STP means the atmosphere is truly loaded. A near-zero STP tells you the pieces are not coming together even if one or two individual values look elevated. The score now adjusts for time of day. Tornado development peaks in the late afternoon and early evening. A Peak Window chip appears when you are in that window and contributes a point to the score. Several bugs were also fixed. The rotation chip was frequently missing in previous builds due to a data decoding issue. It now appears reliably across all US locations. Switching locations no longer briefly shows the previous city's score while new data loads. ### 1.4 — 2026-05-06 This update is a major expansion of what RexWeather can do. TORNADO POTENTIAL SCORE A new home screen card shows a real-time 1-to-10 Tornado Potential score for your location. It factors in active NWS warnings, SPC outlook data, and GFS atmospheric model ingredients including CAPE, wind shear, and storm energy. Tap the card for a full breakdown of every ingredient driving the score. LIVE NWS SEVERE WEATHER ALERTS Active National Weather Service alerts for your exact location now appear directly on the home screen, color-coded by severity from standard watches all the way up to Particularly Dangerous Situation tornado warnings. SPC STORM PREDICTION CENTER OUTLOOKS The full NOAA SPC convective outlook is now built into the app. View Day 1, Day 2, and Day 3 maps with tornado, wind, and hail probability layers. See your exact location risk and read the forecaster discussion. NOAA DAMAGE PATH POLYGONS Tornado detail maps now show real surveyed damage footprints from NOAA's Damage Assessment Toolkit for thousands of events, with each segment colored by its recorded EF intensity. CURRENT-YEAR TORNADO DATA Current-year tornado records are now sourced from NOAA NCEI Storm Events, delivering over 1,500 verified records updated monthly. LOCATION SEARCH Search for any city in the world and check weather and tornado risk away from home. Canadian locations are fully supported. OFFLINE MODE Weather and tornado data are now cached automatically so the app works without a connection. ### 1.2.1 — 2025-10-07 What's New in Version 1.2.1 Tornado Explorer Upgrades • Full-screen immersive experience • Quick-access buttons for famous tornado outbreaks (2011 Super Outbreak, Moore EF5s, Joplin 2011) • Historical filter presets: Fujita Era, Doppler Revolution, Enhanced Fujita Era, and more • One-tap jump to significant tornado research periods Customization • Four map styles: Standard, Hybrid, Satellite, Muted • App themes: System, Light, Dark modes • Instant updates across all features iPad Optimizations • Enhanced responsive layouts for larger screens • Improved visual spacing and organization Acknowledgements • Updated attribution links for Weather and data sources • Support the developer option ### 1.02 — 2025-10-02 No release notes. ## Apps similar to RexWeather | App | Rating | Price | Category | | --- | --- | --- | --- | | [ForeFlight Mobile EFB](https://appshunter.io/ios/app/foreflight-mobile-efb/id333252638) | 4.4 (3,232) | Free | Weather | | [WAFB First Alert Weather](https://appshunter.io/ios/app/wafb-first-alert-weather/id413112585) | 3.1 (172) | Free | Weather | | [KSLA 12 First Alert Weather](https://appshunter.io/ios/app/ksla-12-first-alert-weather/id470980953) | 4.7 (9,468) | Free | Weather | | [Ambient Weather Network](https://appshunter.io/ios/app/ambient-weather-network/id1426025887) | 4.6 (13,418) | Free | Weather | ## Related topics [tornado watch](https://appshunter.io/ios/topics/tornado-watch) · [free tornado warning & tracker live](https://appshunter.io/ios/topics/free-tornado-warning-tracker-live) · [live map tornado](https://appshunter.io/ios/topics/live-map-tornado) · [free tornado alert](https://appshunter.io/ios/topics/free-tornado-alert) · [free tornado warning](https://appshunter.io/ios/topics/free-tornado-warning) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*