Forks of Salmon, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

050
FXUS66 KMFR 051117
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
417 AM PDT Thu Jun 5 2025

.DISCUSSION...Updated Aviation Section...

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.AVIATION...05/12Z TAFs...Marine stratus is bringing IFR and areas of
LIFR to the coast from Cape Blanco north and into the Coquille
valley this morning. This has also been spreading into more parts of
the Umpqua Basin. MVFR/VFR returns this afternoon/evening to the
coast and Umpqua Basin. Elsewhere, expect VFR through the TAF
period. Winds will also be a concern at the coast with afternoon
gusts of 25 to 30 kt and 15 to 20 kt gusts for spots inland.

&&

.PREV DISCUSSION... /Issued 309 AM PDT Thu Jun 5 2025/

DISCUSSION...Satellite shows marine stratus across Coos County
and into the Coquille Basin early this morning. This layer is
slowly moving into parts of central Douglas County, so will be
monitoring this in the Umpqua Basin as the morning continues.
Clear skies continue otherwise.

Low temperatures this morning are still on track to mostly be in the
40s and 50s while portions of northern Klamath and Lake counties
will see upper 30s and low 40s. Today begins the warm up that will
continue into the weekend as ridging starts to build in closer to
the area. Temperatures this afternoon will be 5 to 10 degrees above
normal and it will be another sunny day. North/northeast winds will
once again pick up this afternoon west of the Cascades. The
strongest winds will be a the coast with sustained winds reaching 15-
20 mph this afternoon.

Friday is on track to be Medford`s 4th 90 degree day of the year,
with a 90% probability for Medford to hit 90. Behind that is a 50%
chance for a 90 degree high in Roseburg and Mount Shasta. The
warmup will be at their peak through the weekend as discussed in
the long term discussion.

Long Term: There`s good agreement for strong upper ridge to
gradually move east towards the end of the week into early next
week. This will likely result in afternoon temperatures heating up
for the interior. Afternoon temperatures for the interior westside
valleys could flirt near the tripe digit mark Saturday, Sunday and
next Monday.

It will be dry most of the time and for most locations into early
next week. However there`s some evidence suggesting mid level
moisture creeping into northern California as a weak upper low
drifts from the west towards the Bay Area Saturday. Instability
parameters are marginal and there could be enough of a trigger for
isolated thunderstorms to pop up Sunday afternoon and lasting into
Sunday evening. Isolated storms could be a concern first in northern
Cal. Steering is expected to be from the southeast, and some of
these storms could make their way into southern Oregon late Sunday
afternoon into Sunday evening.

Any storms should fizzle out later Sunday evening with dry weather
Sunday night into Monday morning.

The weak upper trough is expected to move into the area Monday with
the best instability in portions of northern Cal and along and east
of the Cascades. Therefore could not rule out isolated thunderstorms
again Monday afternoon and early evening east of the Cascades and
portions of northern Cal.

Tuesday could be a repeat of Monday with some evidence pointing
towards marginal instability and a slight chance for storms in
portions of northern Cal and east of the Cascades.

Given this is a ways out, the details on the locations that could
get affected by isolated storms will vary. Stay tuned for the latest
updates.

It still looks like the mainly dry and hot weather may only be a 3
day event with gradual cooling starting next Tuesday. Beyond
Tuesday, the ensemble means suggesting weak upper troughing to
return the latter part of next week into Fathers Day weekend.
-Petrucelli

MARINE...Updated 245 AM Thursday, June 5, 2025...With high
pressure offshore and a thermal trough near shore through tonight,
strong north winds will persist and maintain very steep and
hazardous wind driven seas from Cape Blanco southward. Meanwhile,
steep seas will persist north of Cape Blanco. North winds will be
strongest this afternoon and into the evening, reaching gale force
south of Gold Beach between 5 and 40 nm offshore. After, all areas
south of Cape Blanco will continue seeing very steep and hazardous
seas through Saturday morning.

The thermal trough pattern will be disrupted this weekend, leading
to weaker north winds and lower seas. The thermal trough pattern
returns early next week with moderate to strong north winds and
steep to very steep wind-driven seas expected through mid-week. /BR-
y/DW

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...CA...None.

PACIFIC COASTAL WATERS...Gale Warning until 5 AM PDT Friday for
     PZZ356-376.

Hazardous Seas Warning until 5 AM PDT Saturday for PZZ356-376.

     Small Craft Advisory until 5 AM PDT Saturday for PZZ350-370.

&&

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