About This Product
The Wet Bulb Globe Temperature Risk map plots the current wet bulb globe temperature (degrees F) at the standard height of 1.5m (5 feet) along with its associated risk category. The wet bulb globe temperature is an estimation of the impact of temperature, humidity, wind speed, and solar radiation on humans. The wet bulb globe temperature accounts for humidity (similar to heat index), but also factors in sunlight exposure and wind speed. The risk categories are based on guidelines from the NWS Tulsa WFO.
This map is updated every 5 minutes.
See our wet bulb globe temperature handout (PDF) for more information.