
Track the Heat. Stay Compliant.
Easily Document Every Practice
Provide a duration and the WBGT app builds the work and rest periods from your zone's guidelines, runs a timer for each one, and logs WBGT every 30 minutes. When practice ends, initial the record and send it as a PDF or CSV. Your AD has it before the buses leave.
- Work/rest periods built from the actual WBGT zone — or define your own
- Work and rest periods automatically calculated based on your practice duration
- A timer for every period, with a buzz when it ends
- Certified record, emailed in seconds

Know the heat before you walk out
Live WBGT and Forecast for Every Location
Get hourly WBGT for any location — with humidity, wind and heat index alongside it. The 5-day outlook shows peak WBGT by day so you can move Thursday's practice before Thursday.
- Hourly WBGT, humidity and heat index for any address
- 5-day outlook with the peak hour for each day
- Save your locations and switch in one tap

Lightning
Smart Lightning Calls, Live — With An Easy Record for Later
Play stops when lightning is inside your radius. The timer resets after each strike, followed by an all-clear alert when the time has passed.
- Countdown Timer. Countdown starts at the first strike and resets with every new one, all clear when it's safe to continue
- You set the rules. Radius of 10, 15 or 20 miles; all clear at 30, 45 or 60 minutes
- Text Notifications. Texts to your staff when play stops and at all clear
- Easy History Export. Every alert, strike and all clear saved with its time
Free
$0/mo
|
WBGT for Coaches
$2.99/mo
|
⚡ WBGT+ Lightning $9.99/mo |
|
|---|---|---|---|
Live WBGT Kestrel Feed for the HeatSense Pro Dashboard |
✓ | ✓ | ✓ |
WBGT Category Guidelines |
✓ | ✓ | ✓ |
5-day outlook |
— | ✓ | ✓ |
Save unlimited locations |
— | ✓ | ✓ |
Document every practice — work/rest periods built from your WBGT zone, a timer for each period, and WBGT logged every 30 min automatically |
— | ✓ | ✓ |
Certify and send work and rest periods along with WBGT (PDF & CSV) |
— | ✓ | ✓ |
WBGT & Practice Period Haptics |
— | ✓ | ✓ |
⚡ Lightning alerts |
— | — | ✓ |
⚡ Text alerts for your staff — lightning & all clear |
— | — | ✓ |
⚡ 30-min all-clear countdown |
— | — | ✓ |
⚡ Export & store all data (PDF & CSV) |
— | — | ✓ |

BASED ON INTERNATIONAL STANDARDS
Built on Established Methods
The HeatSense WBGT is based on algorithms that follow internationally recognized heat-stress standards and were validated across conditions from −10 °C to 40 °C. In field comparisons with professional, ISO-compliant WBGT instruments they showed strong agreement, with a mean absolute error below 0.10 °C — accurate and reliable for heat monitoring across climates.
The National Weather Service labels its own WBGT page “Prototype – Under Development. Not to be used for operational use” and describes its values as estimates for a wide area. Don’t run practice on it. WBGT for Coaches calculates a validated WBGT for your exact location, hour by hour. Source: weather.gov
Frequently Asked Questions
The regional WBGT categories (1, 2 and 3) used by state athletic associations and the Korey Stringer Institute. The app sets your category from your location; you can change it in Account.
Start and end time, every work and rest period with its length, WBGT logged every 30 minutes, the zone, and your initials and time if you certified it. Sent as PDF or CSV.
Each coach or AT installs the app with their own account. HeatSense Pro teams get full access for everyone on the dashboard with no extra subscription.
From the Xweather Lightning Network, built on Vaisala’s National Lightning Detection Network — the same sensor network used by the National Weather Service, the FAA and NASA. WBGT for Coaches reads it for your field’s exact location.
WBGT is the first step in better protecting your team in the heat. Every athlete shows up to practice hydrated differently, acclimated differently, and rested differently. See real-time heat response with our Teams Solution.