791
WWUS75 KSLC 191959
NPWSLC

URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
159 PM MDT Tue Aug 19 2025

UTZ123-124-201100-
/O.EXT.KSLC.XH.A.0001.250821T1800Z-250823T0300Z/
Lower Washington County-Zion National Park-
Including the following locations - St George, Hurricane,
Springdale, and Ivins
159 PM MDT Tue Aug 19 2025

...EXTREME HEAT WATCH NOW IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 108
  possible.  Overnight temperatures in the upper 70s to low 80s will
  prolong heat stress to those without proper cooling.

* WHERE...Lower Washington County and Zion National Park.

* WHEN...From Thursday afternoon through Friday evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Monitor the latest forecasts and warnings for updates.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/saltlakecity.

For information on potential travel impacts visit
http://udottraffic.utah.gov

LC