Greenview, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

994
FXUS66 KMFR 232246
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
246 PM PST Sat Nov 23 2024

.DISCUSSION...An upper low off the southern British Columbia
coastline continues to bring unsettled weather to the area. The
upper low is forecast to shift slowly south along the Pacific
Northwest coastline...bringing rounds of steady precipitation
mixed with showers through at least the first part of next week.

The first round of steady precipitation will begin impacting
southern Siskiyou county Sunday morning...impacting the west side
by Sunday afternoon. The activity will spread east through the
day. Another round of precipitation spreads from west to east
early Monday morning into the afternoon hours.

Snowfall along the southern Siskiyou passes will be the biggest
impact of the storm...and a Winter Storm Warning was issued to
account for this hazard. Please see the warning for additional
information.

Scattered showers linger through much of Tuesday before the upper
low moves southeast into northern California allowing for upper
level ridging to set up over the area Wednesday into Thanksgiving.

Unfortunately with high pressure building over the area...there is
the possibility of dense fog over the valley locations...so
warm days aren`t expected.

One thing we do have confidence in regarding this pattern change
mid next week...dry weather through at least the holiday weekend.
In fact...only 1 ensemble member...so about 3% of the models...are
showing any precipitation from Saturday through the following
Tuesday after Thanksgiving.

-Riley

&&

.AVIATION...23/18Z TAFS...Shower activity will continue into the
afternoon hours as an upper level disturbance moves through the
region. MVFR and IFR ceilings more likely closer to the coast with
VFR ceilings more likely farther inland. The atmosphere will become
unstable later this afternoon along the coast with some isolated
thunderstorms. The chance of any cloud to ground lightning is about
15%.

Valleys will likely see some fog later tonight with partial
clearing. Medford(MFR) is the most at risk here, although
Roseburg(RBG) could see also see a few hours of fog later tonight.
LIFR and IFR visibilities will be possible in these fogs.

-Smith

&&

.MARINE...200 PM PST Saturday, November 23, 2024...Gusty south winds
will continue today, with seas remaining high and steep. Another
front will approach the area this evening, bringing south gales and
very steep wind driven seas tonight through Sunday. Conditions
remain unsettled the upper level low finally moves eastwards between
Monday and Tuesday. High pressure builds for the remainder of the
week with relatively low seas.

-Smith

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...CA...Winter Storm Warning from 10 AM Sunday to 4 AM PST Tuesday for
     CAZ082.

PACIFIC COASTAL WATERS...Small Craft Advisory until 10 PM PST this
     evening for PZZ350-356-370-376.

Gale Warning from 10 PM this evening to 7 PM PST Sunday for
     PZZ350-356-370-376.

&&

$$