An unseasonably strong, dry offshore flow will affect Oregon, and N. California from the Cascades to the coast Monday through Tuesday night. Dry east winds, unseasonably warm temperatures combined with extremely dry vegetation will create conditions favorable for fires to rapidly spread. Outdoor burning is not recommended. Excessive heat continues for valleys west of the Cascades to within a mile of the coast.
Above: Most of Oregon and Northern California are under watches and warnings Monday and Tuesday.
It will be hot and dry with poor to moderate humidity recoveries into Wednesday. A trough will dig south east of the Cascades this week, producing gusty north winds from the Cascades east. Once the trough passes the area, winds will shift east, producing a period of gusty east winds, low humidities, and poor overnight recoveries. This will be a widespread event and will impact most, if not all of the region. Multiple Red Flag Warnings are in effect through Tuesday, and critical conditions are likely to linger into Wednesday morning west of the Cascades. Winds will diminish Wednesday and recoveries will improve, but it will remain hot and dry.
Red Flag Warning issued until September 09 at 12:00AM PDT by NWS Medford
…HOT DRY AND WINDY CONDITIONS EXPECTED FOR MUCH OF THE AREA MONDAY INTO WEDNESDAY…
.A trough will dig south east of the Cascades Monday, producing gusty north winds and very dry humidities. As the trough exits to the south, winds will shift to the east, and a significant offshore wind event is expected Monday night into Wednesday morning. Dry and windy conditions are expected across the region with poor recoveries overnight, creating significant fire weather concerns until winds weaken and humidities begin to improve Wednesday.
…RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 11 PM PDT MONDAY FOR STRONG GUSTY WIND WITH LOW RH…
…RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO MIDNIGHT PDT TUESDAY NIGHT FOR STRONG GUSTY WIND WITH LOW RH…
* Impacts: Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires.
* Affected area: In Northern CA, all of Fire Zones 284 and 285. In South Central OR, all of Fire Zones 624 and 625.
* Wind: Northeast 15 to 25 mph with gusts up to 45 mph.
* Humidity: As low as 7 percent.
* One less spark, one less wildfire.
* View the hazard area in detail at: https://www.wrh.noaa.gov/mfr/HAZARD