Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Portland OR
222 PM PDT Mon Sep 1 2025
ORZ120>122-WAZ209-210-021400-
/O.CON.KPQR.HT.Y.0006.250902T1900Z-250904T0400Z/
West Columbia River Gorge I-84 Corridor-Upper Hood River Valley-
Central Columbia River Gorge I-84 Corridor-West Columbia River
Gorge SR 14 Corridor-Central Columbia River Gorge SR 14 Corridor-
Including the cities of Stevenson, Underwood, Parkdale, Cape
Horn, North Bonneville, Carson, Beacon Rock SP, Wyeth,
Bonneville, Multnomah Falls, Odell, Cascade Locks, Rooster Rock,
and Hood River
222 PM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO 9 PM PDT
WEDNESDAY...
* WHAT...Afternoon high temperatures in the mid to upper 90s and
overnight low temperatures in the mid 60s to lower 70s expected.
* WHERE...Western and Central Columbia River Gorge and the Hood
River Valley.
* WHEN...From noon Tuesday to 9 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Increasing high clouds may limit high
temperatures a bit on Wednesday when compared to Tuesday. However,
probabilities for high temperatures above 90 degrees on Wednesday
are high, ranging from 80-90%.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in a cool place during the heat of the
day, stay out of the sunshine, and check up on relatives and
neighbors. For those without air conditioning, use fans to keep air
moving. Keeps windows closed during the day and open at night,
unless air quality is degraded due to wildfire smoke.
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.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
&&
$$
For more information from the National Weather Service visit
www.weather.gov/portland
59
URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
807 PM PDT Mon Sep 1 2025
WAZ305>309-021200-
/O.CON.KSEW.HT.Y.0006.250902T1900Z-250905T0000Z/
Foothills and Valleys of the North Cascades-Foothills and Valleys
of Snohomish and Northern King Counties-Foothills and Valleys of
Central King County-Foothills and Valleys of Pierce and Southern
King Counties-Foothills and Valleys of Thurston and Lewis
Counties-
Including Monroe, Granite Falls, Mirrormont, Darrington, Prairie
Ridge, South Hill, Covington-Sawyer-w, Sahalee, Pine Lake,
Morton, Enumclaw, Eastgate, Sudden Valley, Lea Hill, Maple
Valley, North Bend, Duvall, Mossyrock, and Elk Plain
807 PM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO 5 PM PDT
THURSDAY...
* WHAT...Hot conditions with high temperatures ranging from the
upper 80s to the mid 90s and low temperatures in the 60s and lower
70s. This will pose a moderate to locally major risk of
heat-related illness.
* WHERE...Foothills and Valleys of the North Cascades, Foothills and
Valleys of Central King County, Foothills and Valleys of Pierce
and Southern King Counties, Foothills and Valleys of Snohomish and
Northern King Counties, and Foothills and Valleys of Thurston and
Lewis Counties.
* WHEN...From noon Tuesday to 5 PM PDT Thursday.
* IMPACTS...Heat will significantly increase the risk of
heat-related illnesses for those who are sensitive to heat,
especially those without effective cooling or adequate hydration.
* ADDITIONAL DETAILS...The hottest temperatures will primarily be
focused in the Cascade valleys, where temperatures in the mid 90s
can be expected. The overnight lows will remain very warm and
provide little to no relief, especially in locations such as
Packwood, Marblemount, and Darrington.
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. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible.
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.
For sheltering information and other human services in your area,
dial 2 1 1 during business hours or visit wa211.org anytime.
&&
$$
62
URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1202 PM PDT Mon Sep 1 2025
ORZ049-502-505-511-WAZ030-523-022215-
/O.NEW.KPDT.HT.Y.0008.250902T1800Z-250903T0300Z/
Grande Ronde Valley-Northern Blue Mountains of Oregon-John Day
Basin-Central Oregon-Northwest Blue Mountains-Lower Slopes of the
Eastern Washington Cascades Crest-
Including the cities of Cle Elum, Cove, Spray, Redmond, Dayville,
Mitchell, Appleton, Union, Elgin, La Grande, Tollgate, Meacham,
Ski Bluewood Resort, John Day, Cliffdell, Monument, Madras, Bend,
and Prineville
1202 PM PDT Mon Sep 1 2025
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM PDT TUESDAY...
* WHAT...Hot conditions with temperatures up to 97 degrees expected.
This will pose a moderate to major risk of heat-related illness.
* WHERE...In Oregon, Central Oregon, John Day Basin, Grande Ronde
Valley, and Northern Blue Mountains of Oregon. In Washington,
Lower Slopes of the Eastern Washington Cascades Crest and
Northwest Blue Mountains.
* WHEN...From 11 AM to 8 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
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. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible.
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.
For sheltering information and other human services in your area,
dial 2 1 1 during business hours or visit 211info.org for Oregon or
wa211.org for Washington anytime.
&&
$$
LN
