The future of severe weather intelligence is here.
FLASH Weather AI brings the power of real-time, predictive weather alerts directly to your pocket—with unmatched precision.
Powered by advanced AI and updated every 2 minutes, FLASH gives you life-saving lightning forecasts, real-time and forecasted heat risk metrics, up to the minute current + future radar, Flash AI's patented FirstStrike, All Clear, and Lightning Probability forecast maps, instant push notifications tailored to all of your saved locations, plus hourly and daily forecasts out to 7 days. Out of breath yet? Whether you're outdoors for work, training, sports, or recreation, FLASH is your edge against the elements.
Lightning Prediction Like Never Before! Our patented algorithm infused with AI predicts lightning before it strikes, with 1 kilometer resolution, updated every 2 minutes.
- Forecasts where lightning will be before it hits
- Track real-time lightning activity near you
- Intuitive Safety Indicator: Our color-coded safety indicator makes it easy to understand when it's safe to continue outdoor activities and when to seek shelter.
- Simple Countdown Clock: When lightning is detected within your location, a countdown of user-determined length begins, resetting with each new strike to guide you to safety.
- Customizable Prediction and Detection Settings: Tailor the app to your needs by adjusting the warning radius from the recommended 6 miles to between 3 and 12 miles. You can also customize the warning countdown duration from 15 to 60 minutes.
Heat Risk & Wet Bulb Globe Temperature (WBGT) Plan your day with real-time WBGT readings—critical for outdoor safety. FLASH also gives you 7-day forecasts of heat stress so you can avoid dangerous conditions before they start.
- Live WBGT values for your exact location
- Heat risk color coding for easy interpretation
- 7-day forward-looking heat stress outlook
Current Radar and Forecast Maps. Now view up to the minute, high resolution current and future radar with current lightning map overlays. Also view Flash AI's First Strike, All Clear and Lightning Probability forecasts on map display.
- High resolution mapping
- Up to the minute current radar and current lightning
- 18 hour future radar forecasting in 15 minute increments updating hourly
- First Strike, All Clear, and Lightning Probability mapped forecast updating every 2 minutes
Smart Push Notifications. Get alerted when lightning is detected or forecasted near your location. No more missed warnings—just timely, actionable info when it matters most.
- Customizable lightning proximity alerts for your saved locations
- Forecast-based warnings before a strike
Basic Hourly and 7 Day Forecasts. All basic daily and weekly weather forecasts for high and low temperatures, precipitation chances and amounts, wind, dew point, cloud cover, and UV Index
- Hourly forecasts for each day
- Daily forecast views out to 7 days
Developed by Flash AI. Learn more at flashweather.ai Privacy Policy: https://flashweather.ai/privacy/ Have questions or suggestions? Contact our dedicated support team at support@flashweather.ai
Some features require a Flash Premium subscription. After a 7 day free trial, Premium is .99/mo or 9.99/yr.
Legal
Privacy Policy: https://flashweather.ai/privacy/
Terms of service: https://flashweather.ai/legal/
Subscriptions — EULA
Auto-renewable subscriptions are governed by Apple’s standard EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
I like the app a lot, but either I'm confused or it is missing a critical feature: notifications! I expected the app to send me a notification when there was an advisory or warning, but apparently you have to go into the app and check proactively. If notifications were added, this would be a great app but until then I need to rely on other apps that provide warnings via the iOS notification system.
Great new weather app
#1long
Flash Weather Ai has quickly become my go-to weather app. What sets it apart is the incredible level of detail it provides, everything from lightning forecasting and real-time radar to dew points, seasonal trends, and hyper-local forecasts that actually matter throughout the week. Whether I’m planning for the weekend, preparing for severe weather, or just tracking subtle changes in conditions season to season, this app delivers exactly what I need. The interface is clean, fast, and intuitive, and the forecasting tools are surprisingly accurate and in-depth. Highly recommended!
Good start, needs counter data.
Allen Lieberman
This app is unique in the lightning app area. I like the chart layout showing colored indicators of threat of lighting in set distance. What will set this app apart from other would be to have a lightning counter on each distance demarcation. Add in the trend rate (increasing / decreasing) would be amazing to see as this will allow a person to determine threat levels at each distance level indicated on the Y axis.
Good app, only one problem
Colïn
This app is fantastic, it shows the location of where lighting is, when it is, and a timer for when it’s safe to go back outside, however I’ve noticed that the app crashes every time I open it, it didn’t used to do this, hopefully it can get fixed because other than that, it’s a fantastic app.
New Features
- Users can now toggle range rings on around their location on maps
Performance Improvements
- Enhancements to the lightning warning card
- Opacity shading on watches and warnings adjusted
- Location pin on map changed to a dot
- Saved location stars now tappable in the locations section
- All mapping layers now automatically refresh
Bug Fixes
- WBGT issue fixed
- Issue fixed where the upon open the lightning view would flash warning
- Localized issue where app wouldn't open to set default location resolved
Version 1.5.78
The developer, Flash Scientific Technology, 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 Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
FLASH Scientific Technology Inc.
Size
62.7 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.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.