Heat Index Calculator

Heat and Fire Weather Concerns in the West; Excessive Rainfall Possible in the South-Central U.S.

Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Flash flooding will be possible in Arizona and west Texas today, as well as parts of the southern and central Plains due to slow moving thunderstorms. Read More >

Heat Index

Heat and Fire Weather Concerns in the West; Excessive Rainfall Possible in the South-Central U.S.

Heat Index

by Tim Brice and Todd Hall

What are the formulas for the heat index script?