Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 020508
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
908 PM PST Sat Mar 1 2014
A few showers across the area tonight. Weak high pressure will allow
multiple systems to drag across the north state bringing a
continued threat of showers early next week especially north of the
Interstate 80 corridor. A stronger system will bring a threat of
precipitation to most of Northern California Wednesday into Thursday.
Friday and Saturday look dry for now.
Scattered showers linger over the northern part of the state this
evening...mainly over the mountains and from the central
Sacramento valley northward for the interior valley. Off the coast to
the west there is a stream of moisture headed towards Northern
California. This should lead to some overrunning of precipitation
first starting late tonight and early Sunday morning in the north
then spreading south during the late morning and afternoon hours.
At least several inches of snow will be possible over the higher
elevations of the Sierra Nevada. Several Shortwaves pass to the
north the next several days and the stronger dynamics will stay
well north as well...but a continued moisture feed from the west
will likely keep some precipitation going over the interior on
Monday and Tuesday.
.Extended Discussion (Wednesday through Saturday)
A weak shortwave trough is progged to move onshore to NorCal late
Wednesday into Thursday. While not particularly strong, models do
show a decent moisture tap (> 1.25" PWAT) associated with it.
Expecting about a 50/50 chance for rain in the Valley (due
westerly flow is not as favorable due to rain shadow from the
coastal mountains), with rain likely in the mountains. Snow
levels look to be above pass level due to a warm airmass
associated with the moisture tap.
A ridges builds along the West Coast from Friday on, bringing
warmer temperatures and dry weather for the weekend. -DVC
Generally VFR conditions in the Valley with some low and mid
clouds over the area. Generally MVFR conditions over the mountains
with local IFR conditions with isolated showers. Snow levels
around 5500 feet. South winds 10 to 25 mph with gusts up to 35 mph
this evening then decreasing.