Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 012221
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
221 PM PST Sun Mar 1 2015
Lingering light showers/snow flurries along Sierra Crest today.
Dry elsewhere today with local breezy northerly winds over the
Northern Sacramento Valley. A second wave of wet weather arrives
Monday with possible thunderstorms in the afternoon and light
mountain snow. Drier and warmer Tuesday onward.
Some light showers will continue into the evening south of highway
50. Moisture continues to wrap around the low currently centered
well south of the area and back into the crest from Nevada.
Another system dropping down from the north on Monday will bring
more shower and thunderstorm chances to the interior on Monday.
Today the track of the low is centered further east than
yesterday and mostly over land as it drops south. Snow levels look
to be between 4000 and 5000 feet with this storm but may be down
to near 3500 feet over parts of Shasta County Monday morning. Snow
levels will start out near the lower end of those values and rise
a little in the afternoon.
This system continues to looks weaker than the last one. What
looks like will happen is that as the system drops southward it
will interact with the low over Southern California and the
moisture that it is bringing up north and wrapping around into the
crest. Very little if any precipitation is expected over the
northern part of the CWA but along the crest several inches will
be possible with up to an inch of snow down to around 5000 feet.
Isolated showers and thunderstorms will be possible for the
A ridge will begin to build over the the area Tuesday and
Wednesday with dry and warm weather expected both days. Northerly
flow will occur both days...easterly at night in the mountains.
.Extended Discussion (Thursday through Sunday)
Little weather of note through the weekend as high pressure ridge
builds and remains in control off West Coast. Dry weather will
rule with above normal temperatures: daytime highs in the 60s to
70s in the valley and 50s to 60s in the mountains. Mostly clear
skies and light winds are expected into the weekend. Patchy
morning fog may form in northern SJV and southern Sac valley. No
sign of rain until mid to late next week.
Mainly VFR conditions expected thru the TAF period. Gusty
northerly winds in northern and western portions of the valley
will this evening into tonight. Brief period of MVFR to IFR BR/FG
possible again at KSCK during the morning hours. A weak system
will move through on Monday with the possibility of scattered
showers after 18z but confidence of coverage too low for inclusion
in 00z TAF issuance. Better chance for showers across the
mountains with snow levels 040-050. Otherwise little more than some high
level clouds associated with this Monday afternoon/evening. CEO