Etna, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

612
FXUS66 KMFR 251310
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
610 AM PDT Wed Mar 25 2026

.DISCUSSION...Confidence is high in the forecast for today through
Sunday, and also regarding a broad scale change to a more
seasonable active pattern with periods of wet, windy weather
during at least Monday through Wednesday.

A cold front has brought around a quarter of an inch
to an inch of rain to the coast in the past 24 hours, with around
a tenth of an inch to one-third of an inch to southwest Oregon,
and less than a tenth of an inch into western Siskiyou and
northern Klamath counties.

The remnants of yesterday`s weakening cold front will dissipate
east of the Cascades today while another slightly weaker front
(with its energy focused from northern Oregon northward) moves
into our area and also weakens. Through this evening, there will
be light showers, again mostly for southwest Oregon, but also into
western Siskiyou County and northern Klamath County. Additional
rainfall amounts during the next 18 hours, through this evening,
are expected to be up to a tenth of an inch. This accumulation
will be in the same areas as yesterday.

Meanwhile, also resembling yesterday though not quite as strong,
gusty westerly winds again become widespread and strongest east
of the Cascades in the afternoon into the early evening. Peak
southwest wind gusts in Lake County were recorded of 46 mph at
Summit and 49 mph at Summer Lake. East side winds early this
morning are gusting to around 30 mph and should peak at 35 to 40
mph, about 5 mph weaker than yesterday`s peak, which is just shy
of levels that would warrant another Wind Advisory for Lake
County. One thing that is different is that with the cumulative
effect of the two cold fronts, it will be noticeably cooler today
in southwest Oregon, and slightly cooler for south central Oregon
and northern California.

Low level moisture lingers tonight into Thursday morning while a
thermal trough develops and an upper level ridge builds in. Drier
conditions are expected Thursday through the weekend with a wide
range each day from chilly mornings to very warm afternoons.
Well-below-freezing low temperatures in the teens and 20s are
expected east of the Cascades Thursday through Saturday, while a
widespread frost and areas of freezing temperatures will also be
present on the west side on Thursday and Friday. While this is
very common for March, it does follow our lengthy period of above
normal temperatures and recent record warmth that ushered in
early spring growth. Thus, sensitive vegetation may be damaged by
the cold temperatures. Meantime, afternoon highs from Thursday
through Sunday will return to well above normal. This includes
easterly flow induced warming for Brookings on Thursday and Friday
with a high near 70 on both days.

An approaching front may get close enough to bring rain to the
coast as early as Sunday, with the highest/low end chance
probability north of Cape Blanco. An active pattern of wet and
windy weather is likely for at least Monday into Wednesday as a
couple of frontal systems move into the west coast. These look to
be seasonable systems with south to southwest flow likely to favor
precipitation for Curry and Siskiyou counties.

&&

.AVIATION...25/12Z TAFs...Conditions today will resemble those from
yesterday with a mix of MVFR and VFR ceilings and occasional light
rain in southwest Oregon and western Siskiyou County, and VFR for
south central Oregon and the remainder of northern California.
Meantime, gusty westerly winds will develop again for this afternoon
and evening. Winds will be strongest east of the Cascades with gusts
of 25 to 45 mph, strongest in Lake County.

Rain showers will taper off and winds will diminish after 04Z this
evening, with VFR becoming predominant. But, lingering low level
moisture is likely to result in patches of late night valley IFR and
MVFR after 08Z, continuing into Thursday morning.

&&

.MARINE...Updated 230 AM PDT Wednesday, March 25, 2026...Steep seas
continue north of Cape Blanco this morning, with seas briefly swell
dominated.

A thermal trough will develop this afternoon and evening, then
strengthen on Thursday with strong winds south of Cape Blanco along
with steep to very steep, wind wave dominated seas. Northwest winds
in the waters south of Cape Blanco are expected to reach Small Craft
Advisory strength late this afternoon into tonight, then gales are
possible Thursday afternoon through Thursday night. For the waters
north of Cape Blanco, winds and seas are likely to reach small craft
advisory levels Thursday afternoon and continue into Thursday night.

The thermal trough is expected to push slightly offshore late
Thursday night into Friday with the strongest northerly winds
becoming limited to the outer portion of the waters while fresh
swell likely also continues steep seas in the inner waters.
Improvement is likely late Saturday into Sunday.  Conditions are
likely to deteriorate again Sunday night into at least Tuesday
of next week as the pattern becomes more active.

&&

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

PACIFIC COASTAL WATERS...Small Craft Advisory from 10 AM this morning
     to 11 AM PDT Thursday for PZZ356-376.

Gale Watch from Thursday afternoon through Thursday evening for
     PZZ356.

     Small Craft Advisory until 2 PM PDT this afternoon for PZZ350-
     370.

     Gale Watch from Thursday morning through late Thursday night for
     PZZ376.

&&

$$