National Weather Service United States Department of Commerce

Flash Flood Risk in the Mid-Atlantic; Storms in the High Plains; Critical Fire Weather Threats in the West

Heavy rain and thunderstorms will pose a flash flood risk for the Mid-Atlantic. Severe thunderstorms are possible through Friday from the northern and central Plains to the Upper Midwest. Elevated and critical fire weather conditions with isolated dry thunderstorm potential across a large part of the West. Above average temperatures are expected in the Southern Plains and Northeast. Read More >

Heat Index

by Tim Brice and Todd Hall
 
 
 
Enter a temperature that you would like and choose your units: What the temperature feels like to your body:
Fahrenheit Celsius ° F
Enter your relative humidity:  
% ° C

 

What are the formulas for the heat index script?