Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 040400
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
800 PM PST Tue Mar 3 2015

.Synopsis...
Drier and milder weather through the remainder of the week. The
next weather system to impact the area won`t be until the middle
of next week.

&&

.Discussion...
A ridge of high pressure will build over Northern California
through the rest of the week with dry conditions and warming
temperatures each day. Dew points are lower this evening and
its not likely that we would see any appreciable fog develop in the
morning. Temperatures should cool off overnight into the upper 30s
to lower 40s for most locations in the valley. The mountain valley
will be cold the next couple of nights cooling into the teens each
night. We may see some haze develop later in the weak under the
stagnant conditions that should persist during the second half of
this week. Temperatures will warm a little each day and may become
10 to 15 degrees above seasonal normal`s by the weekend.

&&

.Extended Discussion (Saturday through Tuesday)

Unseasonably warm and dry conditions continue through the weekend
into Monday as a blocking ridge remains over California. This system
looks like it will finally give way next week, though the exact timing
is uncertain. The GFS has backed off from the quicker breakdown it
had in earlier runs. It now has a small wave moving in late
Tuesday and early Wednesday, more in line with the ECMWF and the
GEM. If current trends continue, the main trough looks like it will
move in late Wednesday into Thursday, with a diffluent pattern
providing good lift over northern California. GFS ensembles
continue trend towards a decent plume of atmospheric moisture as
well. These could combine to bring a rather wet pattern for mid to
late next week. This would likely start as a relatively mild
system, with high snow levels initially, then potentially
impacting pass levels. Stay tuned to see how this system develops. EK


&&

.Aviation...

Mainly VFR conditions across the interior the next 24 hours.
Local Northeast winds gusting to around 30 kt across Sierra 06z-
18z.

&&

.STO Watches/Warnings/Advisories...
None.
&&

$$








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