Flag Call

The wet bulb globe temperature decision game for hot practice days

Read the heat. Make the call.

One flag decides whether practice runs, shortens, or shuts down. Blend air temperature, humidity, radiant heat, and wind into one wet bulb globe temperature reading, then call the right flag for every block of a real activity schedule.

Conditions

Pick a city snapshot or dial in your own weather. The readout updates as you move.

Weather inputs

Dry bulb air temperature in degrees Fahrenheit.

Moisture in the air. High humidity stalls sweat evaporation.

Sunlight load on a black globe, from overcast to full sun.

Moving air cools the globe and helps sweat do its job.

Heat Readout

95.5 F WBGT
Danger
Wet bulb 90.4 F Globe 110.7 F Air 101.0 F

The reading blends 70 percent wet bulb, 20 percent globe, and 10 percent air temperature.

    Practice Card

      Judge Shortcuts

      Two one tap views for coaches and judges: what a bad plan looks like, and what the safe call is.

      Day Report

      95.5 F Danger 0 pts

      Judge View