HeatAlert: Heat Stress Index

Contains ads
3.6
12 reviews
1K+
Downloads
Content rating
Everyone
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About this app

🌡️ Stay Cool & Safe:
Whether you're an outdoor enthusiast, an athlete, or simply concerned about staying safe in the scorching heat, this app is your go-to companion for real-time Wet Bulb Globe Temperature (WBGT) and associated weather information.


Key Features:


🌍 Location-Based Weather Insights:
Access detailed weather forecasts tailored to your specific location. Get current temperature, humidity levels, wind speed, and UV index to plan your activities and outdoor adventures wisely.

🌐 Precise WBGT Values:
Harnessing the power of 65,000+ Tempest Weather Systems, HeatAlert uses real-time temperature, humidity, wind speed, and solar radiation data recorded by nearby Tempest stations to provide Wet Bulb Globe Temperature information to users. This ensures the WBGT values in the HeatAlert app are tailored to your specific location, giving you a better understanding of the environmental conditions affecting you directly.

🚨 Heat Stress Risk Assessment:
Our app goes beyond providing raw data – using the National Weather Service WBGT suggested actions, we provide actionable recommendations to help you stay safe and cool.

🔄 Regular Updates:
We're committed to enhancing your experience and staying ahead of the curve. Expect regular updates with new features and improvements based on user feedback and the latest advancements in heat stress monitoring.

Download HeatAlert by Tempest and take control of your safety in the heat! Stay cool, stay informed, and enjoy the outdoors responsibly.
Updated on
Dec 1, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit

Ratings and reviews

3.6
11 reviews
Mike Levy
September 18, 2024
Not sure how accurate this is without being able to view the location of the reporting station. Trying to match the weather station name on the map on their website has not been successful.
2 people found this review helpful
Did you find this helpful?
WeatherFlow
September 18, 2024
Hi Mike, Thanks for your review. That's great feedback! We will take this into consideration and improve upon this.
Elizabeth Hartka
June 29, 2025
ok to monitor just like any other weather, really need to be able to set notifications at custom levels for heat index for compliance, need three custom thresholds, above x, above y, above z
Did you find this helpful?
WeatherFlow
June 30, 2025
Thank you for your insight, Elizabeth! This is definitely something we want to add to the app functionality.
val sigler
August 7, 2024
Works great for heat warnings, needs to work with weather stations
Did you find this helpful?
WeatherFlow
August 8, 2024
Hey Val! Thanks for your great review. HeatAlert does work with weather stations. If you have one in particular you want to see, please feel free to reach out to our support team: https://help.tempest.earth/hc/en-us/requests/new

What’s new

- Added a NWS alert map layer
- Bug Fixes and Performance Enhancements