The lack of precipitation over the area coupled with low humidities and strong offshore winds has led the National Weather Service to place much of the area under a Fire Weather Watch for the end of the week. This will go into effect Thursday evening and remain in place through Friday. The watch includes the Southern Oregon Cascades, all areas west, Coos County & Curry County, Douglas County, and Siskiyou and Del Norte Counties. In fact at this time, a Fire Weather Watch is already in place for Eastern Del Norte County and extreme Western Siskiyou County through Friday (rather than going into place Thursday evening).
This is an unusual time of year to have fire danger concerns of this magnitude, but when considering the dry conditions of the past several months it makes sense. Ground and soil moisture is low due to the recent lack of rain/snow & increasing winds coupled with low relative humidities will to lead to conditions that can easily allow a fire to spark quickly. Winds will become breezy into Thursday so I would not be surprised if the Fire Weather Watch is expanded to account for all day Thursday. These strong offshore winds will also enhance the Chetco Effect, easily bringing temperatures into the 60’s and most likely the lower 70’s at the Coastline.
Fog should erode much quicker today and this week, in comparison to last week. Skies should begin breaking and fog lifting into lunchtime, with sun across much of the Valley into the second half of the day. Grants Pass has had a very difficult time breaking out of the fog/clouds lately. The Grants Pass area today may catch an hour or two of sun before the clouds begin developing again. Highs will be limited to the upper 30’s there, but elsewhere approaching 50 in the Valley.
Outside of the Valley fog, the clear skies and mild temperatures will be ongoing. The air stagnation advisory is still in place for Southern Oregon through Saturday (although it will likely be extended AGAIN).
Meteorologist Alyssa Caroprese