Heat Advisory for Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains +15 more
Official alert fields
What you need to know
- Applies to
- Central Columbia River Gorge I-84 Corridor, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, Outer Southeast Portland Metro, Tualatin Valley, Upper Hood River Valley and 10 more
- Effective
- Ended
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Temperatures as high as 95 to 100 degrees. Impacts: Hot temperatures may cause heat illnesses. Where: Greater Portland/Vancouver Metro, Western and Central Columbia River Gorge and the Hood River Valley, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, and South Washington Cascade...
What the bulletin says to do
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. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Full official description
Bulletin details
* WHAT...Temperatures as high as 95 to 100 degrees. * WHERE...Greater Portland/Vancouver Metro, Western and Central Columbia River Gorge and the Hood River Valley, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, and South Washington Cascade Foothills. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from fires outside of the region or clouds moving into the area could result in cooler daytime high temperatures than currently forecast. There is around a 15-25% chance of thunderstorms on Wednesday afternoon which may increase cloud cover and thus cause temperatures to be slightly lower than forecast.
Lifecycle record
Official revisions
- Alert
Heat Advisory issued July 22 at 11:56AM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Update
Heat Advisory issued July 21 at 10:10PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Alert
Heat Advisory issued July 21 at 10:47AM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Alert
Heat Advisory issued July 21 at 10:47AM PDT until July 21 at 11:00PM PDT by NWS Portland OR
Official revision - Update
Heat Advisory issued July 21 at 10:47AM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Alert
Heat Advisory issued July 20 at 9:01PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Update
Heat Advisory issued July 20 at 9:01PM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision - Update
Heat Advisory issued July 20 at 10:27AM PDT until July 22 at 11:00PM PDT by NWS Portland OR
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Portland OR. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected