Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 221704
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
904 AM PST Sat Nov 22 2014

.Synopsis...
Latest weather systems brings widespread rain and stronger winds
through interior northern California this morning with minimal
snowfall. High pressure will build back in Sunday and much of next
week.

&&
.Short Term Discussion (Today through Tuesday)...
Frontal system is moving through Northern California is located
over the Northern San Joaquin Valley. Behind the front showers
will be possible through the afternoon hours. Areas of drizzle
have also been occurring this morning around the Sacramento region.
Snow levels continue to be very high close to 9000 feet but will
start to lower as colder air advects into the region this
afternoon. Not much in the way is expected in the way of snow
accumulations with this system with only a few inches for the
higher peaks expected.

Lingering showers will be ending early in the evening. High
pressure will then begin to build over the region for Sunday
and Monday. Northerly winds will develop the next couple of days
but nothing of significance in terms of wind speed.


.Extended Discussion (Wednesday through Saturday)

Strong ridging will bring dry weather and light winds early next
week through Thanksgiving day. Travel conditions are expected to
be good through that period, except for patchy fog in the
Valley in the early morning hours on Wed. The light winds and mostly
clear skies at night, along with leftover moisture from recent
storms could create good conditions for fog development, but the
exact location and timing details will have to wait. Temperatures
should be quite mild with a warm airmass.

Models still suggest that a shortwave could bring some precipitation
into the coastal range, northern mountains and into Northern
Sacramento Valley by Friday morning/afternoon. Chance for
precipitation will spread southward across most of our forecast
area by Friday evening and continue through Saturday. Snow levels
look to be above pass levels at this point. EK/JBB

&&

.Aviation...

Light to moderate precipitation is impacting NorCal this morning
causing widespread MVFR with local IFR cigs/vsbys in the valley.
Mountains will be obscured in precipitation and clouds.
Precipitation chances will continue through much of the day
bringing a mix of VFR/MVFR this afternoon. Moderate southerly
winds impacting TAF sites this morning with gusty conditions
across the Sierra crest through this afternoon. Sierra gusts up to
60 kts expected through 21z. Winds will lighten by tonight and
conditions will become drier.


&&

.STO Watches/Warnings/Advisories...
wind advisory until 1 pm pst this afternoon west slope northern
sierra nevada...western plumas county/lassen park.

&&

$$







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