Headline:
Heat Advisory issued August 21 at 12:48PM MDT until August 21 at 9:00PM MDT by NWS Boise ID
Event:
Heat Advisory
Urgency:
Expected
Effective:
August 21, 2026 - 11:48am
Expires:
August 21, 2026 - 8:00pm
Description:
* WHAT...For the Heat Advisory, temperatures 98 to 103 degrees. For
the Wind Advisory, south winds 25 to 35 mph with gusts up to 65 mph
expected.
* WHERE...Lower Treasure Valley and Upper Treasure Valley.
* WHEN...For the Heat Advisory, until 9 PM MDT this evening. For the
Wind Advisory, from 6 PM to 10 PM MDT this evening.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Hot
temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Strong gusts from the south and southwest will
create areas of blowing dust and visibility as low as one mile,
advancing northward through the Snake Basin, with greatest impacts
between 800 PM and 930 PM MDT.
Instruction:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Area Description:
Lower Treasure Valley; Upper Treasure Valley
Forcast Office:
NWS Boise ID
Sender:
w-nws.webmaster@noaa.gov