FXUS66 KMFR 271517

AFDMFR



Area Forecast Discussion

National Weather Service Medford OR

817 AM PDT Mon Oct 27 2025



.DISCUSSION...Satellite image shows low clouds over most of the

interior valleys both west and east of the Cascades. However fog

has been limited to just a few isolated locations and a look at

several of the web cams where the dense fog advisory was in effect

show just a low cloud deck. Therefore the dense fog advisory has

been cancelled. Additionally, the low clouds and patchy fog 

forming due to recent precipitation has put a cap on the amount

of cooling last night and temperatures are starting above

freezing. Therefore the frost advisory also has been cancelled. 



Above the low cloud deck in the valleys is mostly clear skies with

scattered high level clouds moving in from the northwest over the

northern part of our forecast area. 



It will be dry today as upper ridging builds into the area. Low

clouds in the valleys could persist into early this afternoon

before burning off, but once it does we'll have mostly clear

skies. 



Tonight will be mostly clear and dry, but we could see low clouds

and patchy fog form again for most of the interior valleys later

tonight and lasting into Tuesday morning. 



Adjustments were made to the forecast today through Tuesday

afternoon to account for the above mentioned. -Petrucelli 





&&



.AVIATION...27/12Z TAFs...IFR to LIFR levels continue for Roseburg 

and Medford terminals as valley fog lingers in low elevation areas 

west of the Cascades. Chances for fog also remain for the Klamath 

Basin, although there are no signs of development at the start of 

the TAF period.



With fog looking to clear out before this afternoon, VFR levels are 

expected across the area through midday and this evening under a 

stable atmospheric pattern. Persisting conditions may bring fog back 

to west side valleys towards the end of the TAF period, but daytime 

drying may work against that. -TAD





&&



.MARINE...Updated 800 AM PDT Monday, October 27, 2025...Relatively 

calmer conditions are expected through Tuesday night. 



A front will move through the waters Wednesday. A thermal trough 

will develop behind the front Wednesday afternoon bringing moderate 

to occasionally strong north winds south of Cape Blanco, with Small 

Craft conditions possible. This should be a short duration event 

with the thermal trough expected to expand north and weaken Thursday.



There's good agreement another front will slowly move towards the 

marine waters towards the end of the week with winds becoming south. 

The front is expected to stay far enough north to keep wind speeds 

in check, but it's still a ways out and the forecast could change in 

the days to come. -Petrucelli





&&



.MFR WATCHES/WARNINGS/ADVISORIES...

OR...None.



CA...None.



PACIFIC COASTAL WATERS...None.



&&



$$