Happy Camp, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

946
FXUS66 KMFR 031122
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
322 AM PST Tue Dec 3 2024

.DISCUSSION...Low clouds and fog have made a return tonight with
visibility at a half mile or less in the Rogue Valley and Umpqua
Basin as of 3 AM. Agree with the evening meteorologist that there
will still be fog/freezing fog in west side valleys and near
Klamath Falls until the late morning. Considering the conditions
this afternoon, the Grants Pass area and the Illinois Valley
could have harder clearing out as well as other valleys. The
chance for better visibility will continue through the afternoon
before lowering again later in the afternoon in similar areas as
the past few days. Considering this, keeping the expected warmup
with 40s for valleys and 50s elsewhere.

Temperatures in the mid-30s in Coos County as of 3 AM show that
frost conditions will come tonight with a Frost Advisory in
effect until 9 AM. After, high temperatures will be in the 40s
and 50s with more 40s east of the Cascades. More sunshine will be
found outside of the valleys with mild afternoon temperatures
through the week.

The stronger ridge present will stay on the west coast through
Wednesday, so the Air Stagnation Advisory will continue until then.
After, a disturbance will move through the PNW Thursday, but recent
updates show this will be impacting farther western areas while
it enters the region. Rain chances for this will be at the coast
with lighter amounts. There is agreement that there will be
precipitation at the start of the weekend as a trough moves inland
from the north, but it will weaken as it does. There is more
agreement that there will be precipitation Saturday with more
uncertainty on how much lingers for Sunday. For now, the impacts
will be lighter precip near and west of the Cascades. Temperatures
will stay mild through the long term. -Hermansen

&&

.AVIATION...03/12Z TAFS...LIFR stratus and fog have returned to the
Coquille, Umpqua, Rogue, Illinois, Applegate, Scott, and Shasta
valleys, including both Roseburg and Medford. It will continue to
expand in coverage into sunrise though the LIFR in the Coquille
Valley is not expected to quite reach North Bend.

Patches are also expected to intrude into Klamath Falls early this
morning, with VFR returning before the end of the morning.
Elsewhere, it will likely take a little longer. But, similar to what
transpired Sunday, we have VFR expected by the afternoon.

Valley LIFR is likely to return again around 05-08Z this evening,
into Wednesday morning. -DW

&&

.MARINE...Updated 200 AM PST Tuesday, December 03, 2024...Light
to moderate north winds and relatively calm swell dominated seas
will persist into Wednesday.

A weak front is expected to pass by to the north Thursday, into the
northern Oregon waters, with winds shifting to southerly. Seas will
build with west swell dominated seas are expected to be just shy of
becoming steep during their peak on Thursday night.

Another slightly stronger front will likely move through Friday
night into Saturday morning with the highest winds and seas north of
Cape Blanco...approaching advisory levels on Saturday. A third front
is forecast to be the strongest of the bunch with high and steep
swell dominated seas possible early Sunday into early Monday. -DW

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Frost Advisory until 9 AM PST this morning for ORZ021.

     Air Stagnation Advisory until 4 PM PST Wednesday for ORZ023-024-
     026-029>031.

CA...None.

PACIFIC COASTAL WATERS...None.

&&

$$