Heat Advisory issued August 4 at 10:54PM PDT until August 6 at 11:00PM PDT by NWS Portland OR
发布日期：2026-08-05T05:54+00:00
* WHAT...Afternoon high temperatures of 93 to 98 degrees and morning low temperatures of 60 to 65 degrees expected. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...Until 11 PM PDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Wildfire smoke continues west of the Cascades over northwest Oregon and southwest Washington, which may limit high temperatures by approximately 1-3 degrees. However, temperatures will still be hot enough to bring an increased risk ofheat-related illnesses even if temperatures are dampened a few degrees from smoke.
Heat Advisory issued August 4 at 10:54PM PDT until August 5 at 11:00PM PDT by NWS Portland OR
发布日期：2026-08-05T05:54+00:00
* WHAT...Afternoon high temperatures of 90 to 95 degrees. * WHERE...North Oregon Coast Range Lowlands and Central Oregon Coast Range Lowlands Counties. * WHEN...Until 11 PM PDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Wildfire smoke continues west of the Cascades over northwest Oregon and southwest Washington, which may limit high temperatures by approximately 1-3 degrees. However, temperatures will still be hot enough to bring an increased risk of heat-related illnesses even if temperatures are dampened a few degrees from smoke.
Red Flag Warning issued August 4 at 10:05PM PDT until August 5 at 9:00PM PDT by NWS Medford OR
发布日期：2026-08-05T05:05+00:00
* IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In Oregon, Fire Weather zones 616, 617, 620, 621, 622, and 623, including the East Evans Creek and Castle Fires, as well as Medford, Grants Pass, Ashland, Cave Junction, Shady Cove, Roseburg, Toketee Falls, Elkton, Tiller and the Siskiyous and southern Oregon Cascades. In California...Fire weather zones 280 and 282. This includes Happy Camp, Etna, Fort Jones, Mt Shasta City, Dunsmuir and McCloud. * WIND...Northwest to west 10 to 15 mph with gusts up to 25 mph, except south to southwest in Fire Weather Zone 282. * HUMIDITY...Minimum humidity 8 to 15 percent. * ADDITIONAL INFORMATION...Increasingly unstable conditions could further increase fire activity. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr
Air Quality Alert issued August 4 at 11:53AM PDT by NWS Portland OR
发布日期：2026-08-04T19:01+00:00
The Oregon Department of Environmental Quality and the Lane Regional Air Protection Agency have issued an Air Quality Advisory, which is in effect until further notice. An Air Quality Advisory for Smoke has been issued. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels due to smoke at times until further notice. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. More information about air quality can be found at: www.oregon.gov/DEQ www.lrapa.org
