National Weather Service Raw Text Product

833 
NOUS44 KSJT 011746
PNSSJT
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-021800-

Public Information Statement
National Weather Service San Angelo TX
1246 PM CDT Mon Apr 1 2024

...NWS WFO San Angelo to change criteria for Heat Advisories and 
Excessive Heat Warnings...

Effective on May 1st, 2024, the criteria for Heat Advisories for 
all of our counties in our County Warning Area will change to 105 
degrees for temperature and/or heat index values. Also, the 
criteria for Excessive Heat Warnings for all of our counties in 
our County Warning Area will change to 110 degrees for temperature
and/or heat index values. 

The previous criteria for Heat Advisories in our County Warning 
Area was 103 degrees for temperature and 105 degrees for heat 
index values. The previous criteria for Excessive Heat Warnings in
our County Warning Area was 105 degrees for temperature and 110 
degrees for heat index values.

The changes to the Heat Advisory criteria and the Excessive Heat 
Warning criteria will better reflect heat impacts across West 
Central Texas. In addition, these changes will improve 
collaboration and consistency with our neighboring NWS offices in 
the state of Texas.

As a reminder, a Heat Advisory is issued when the maximum 
temperature and/or heat index value is expected to reach criteria 
for one day or more, and/or when there is an elevated risk of heat
related illnesses to those sensitive to the heat. 
 
An Excessive Heat Warning is issued when the maximum temperature 
and/or heat index value is expected to reach criteria for at least
two consecutive days, and/or there is a significant risk of heat 
related illnesses to all of the population.

For questions or comments regarding this change, please contact
Amy Campbell, Meteorologist-in-Charge, or Mike Castillo,
Warning Coordination Meteorologist, at 325-944-9445.

$$