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 $3.99/mo or $39.99/yr.

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