Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 211635
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
835 AM PST Sun Dec 21 2014

.Synopsis...
Diminishing showers today, mainly in the mountains. Dry Monday and
Tuesday under high pressure ridge with patchy fog. There is a chance
another system may affect the region Wednesday into early Christmas
Day.

&&

.Discussion...
Overcast skies today but no fog this morning in the valley. Some
fog is being reported in the foothills and mountains.

Moisture continues to stream into the region today but generally
any showers will be in the mountains through tonight. A strong
ridge of high pressure builds over the interior to keep the
interior dry for Monday and Tuesday. Fog continues to look like it
may become an issue each night and morning starting Monday
morning.

As the ridge builds expect most temperatures to warm well above
normal...10 to 15 degrees above normal. Redding could be flirting
with reaching 70 degrees on Tuesday. Further south in the valley
moist air and morning fog and a temperature inversion may limit
the amount of warm up. I expect adjacent foothills to end up being
warmer.

.Extended Discussion (Thursday through Sunday)

Drier northwesterly flow moves over the area in the wake of the
Christmas Eve system heading into next weekend. This will return
dry weather to the region and bring cooler overnight temperatures.

&&

.Aviation...

Widespread IFR/MVFR conditions continue across Valley TAF sites as
abundant moisture remains over the region. Conditions will improve
to VFR generally south of KMYV after 20z today across the Valley,
but fog will be possible tonight. IFR/LIFR conditions will
continue over the mountains. Snow levels rise above 090 today.

Dang


&&

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

$$






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