Marine Weather and Tide Forecast for Barview, OR

FXUS66 KMFR 151138 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 338 AM PST Wed Jan 15 2025

DISCUSSION
The dry weather pattern continues through the weekend and into early next week as an upper level ridge remains in place over the region. The ridge will weaken slightly Thursday night as a dry front moves through and a shortwave trough moves inland to the north and northeast. Then the upper level ridge strengths, centered offshore, Friday through the weekend, while a trough develops to the east of the area. Valley fog/freezing fog and air stagnation are the main concerns with this pattern.
Otherwise, expect mild weather with temperatures near or above normal.

Strong inversions, stable conditions and light winds along with boundary layer moisture will result in continued areas of overnight/morning valley fog and freezing fog at least through Thursday morning. These conditions will be most widespread in southwest Oregon valleys west of the Cascades, with areas of fog and freezing fog possible east of the Cascades and in valleys in Siskiyou County. Observations indicated that freezing fog is occuring in the valleys in Joesphine and Jackson counties overnight and fog is occuring across valleys in eastern Curry, Coos and Douglas counties. Visibilities have dropped down to less than a quarter of mile at times. Additionally, with freezing fog, spots of ice may develop on area roadways. A dense fog advisory (Douglas County) and a freezing fog advisory (Jackson, Josephine and eastern Curry county) are in effect through late Wednesday morning for these conditions. Please see the NPWMFR for details. A weak front that moves through Thursday night may weaken the inversion and lift the fog into stratus decks, but fog may return to western valleys Friday night into Saturday as strong inversions return.

With strong high pressure over the region today and Thursday, models support continued strong inversions, resulting in limited vertical mixing and transport winds. This brings continued concerns for air stagnation and the potential for increased pollutants in inland valleys. An air stagnation advisory (NPWMFR)
remains in effect through Thursday morning. Based on the current models, mixing may improve slightly on Friday after a weak front moves through. However, any improvement will likely be limited and brief. Models continue to show high pressure rebuilding as the upper ridge, centered offshore, strengthens late Friday into the weekend.

A dry pattern with high pressure in place is likely to continue into early to mid next week. Looking further out, there are indications in the long term models and climate outlooks of a return to a wetter (although any rain at this point would be wetter) pattern around day 10/next Friday, and continuing during the last week of January.
Show more