HOLY CROSS OF SAN ANTONIO

Holy Cross Heat Safe

Know the heat. Protect the athlete.
Holy Cross Athletic Fields
Waiting for NWS data…
NWS / NOAA WBGT
--.- °F
NWS forecast grid
Getting current WBGT…
TAPPS • ACSM Class 3 activity guidance
Practice check pending
Grid valid time
NWS grid updated

Required actions now

  • Waiting for the current WBGT reading.
Football-specific guidance
Guidance will appear with the WBGT reading.
NWSTexas CalculatorCompare on weather.gov

Nearby NWS observation

Loading…
Air temp--
Humidity--
Wind--
Sky--

The WBGT card uses the NWS forecast-grid WBGT when that layer is available. These conditions are the latest nearby NWS station observation and may not match conditions on the athletic field.

Next 8 hours

Forecast will appear after the first NWS update.
Field-safety note

Weather-grid WBGT is an estimate/forecast, not a measurement made at the field. For the most accurate field-level decision, use a scientifically approved on-site WBGT instrument when available.

NWS / NOAA

WBGT Forecast

Hourly WBGT values from the NWS forecast grid for the selected location. These values are forecasts, not on-field measurements.

Highest next 12h
Lowest-risk next 12h
Update the app to load the NWS WBGT forecast.
TAPPS 2026–27

Class 3 Guidance

WBGT is not air temperature or heat index. Holy Cross Heat Safe applies the TAPPS Class 3 thresholds below.

Policy reference

Always use the current TAPPS policy if it is updated after this app version was released.

Open TAPPS Wet Bulb Guidelines ↗
WHILE APP IS OPEN

Heat Alerts

Browser notification support varies by device. On iPhone, install the PWA to the Home Screen for the best notification support.

Version 1 limitation

Holy Cross Heat Safe does not continuously poll WBGT after the app is fully closed. Reliable background alerts require a push-notification service/backend in a later version.

APP

Settings

v1.2

Install on iPhone

  1. Open the hosted app in Safari.
  2. Tap Share.
  3. Choose Add to Home Screen.
  4. Open Holy Cross Heat Safe from its HC icon.

Data sources

WBGT: NWS raw forecast-grid wetBulbGlobeTemperature layer when available.

Conditions: nearest available NWS observation station.

Policy: TAPPS 2026–27 Class 3 WBGT guidance.

Open NWS Texas WBGT Calculator ↗