Extreme Heat Watch

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
323 AM PDT Sat Jul 12 2025

ORZ108-110-113-119-WAZ204-130000-
/O.CON.KPQR.XH.A.0001.250715T1900Z-250717T0700Z/
Lower Columbia River-Portland West Hills and Chehalem Mountain-
Outer Southeast Portland Metro-West Columbia River Gorge of
Oregon above 500 ft-Cowlitz County Lowlands-
Including the cities of Rainier, Skyline Drive, Estacada, St.
Helens, Chehalem Mountain, Sylvan Hill, Kelso, Kalama, Woodland,
Scappoose, Boring, Castle Rock, Sandy, Clatskanie, Corbett, and
Longview
323 AM PDT Sat Jul 12 2025

...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures between 90 to
  100 degrees possible.

* WHERE...Lower Columbia River and Cowlitz River Valleys, Portland
  Metro Hills, and West Columbia River Gorge of Oregon above 500 ft.

* WHEN...From Tuesday afternoon through Wednesday evening.

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

* ADDITIONAL DETAILS...There is a 40-60% chance that Tuesday night
  low temperatures remain above 65 degrees and a 10-15% chance low
  temperatures remain above 70 degrees, which would limit overnight
  relief. There is also a 10-25% chance for high temperatures of 100
  degrees or hotter on Tuesday and Wednesday.

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.

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
www.weather.gov/portland

Batz