NATIONAL WEATHER SERVICE FORECAST DISCUSSION
Area Forecast Discussion
Issued by The National Weather Service
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145
FXUS66 KSTO 292152
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
152 PM PST Sun Nov 29 2020

.SYNOPSIS...
Dry conditions with mild afternoons and cool nights are forecast
through the week. Breezy north to east winds are expected
Tuesday into early Wednesday.

&&

.DISCUSSION...
Cold nighttime temperatures again tonight with areas of frost and
generally light winds for the valley. Thermal belt locations
morning lows will warm each of the next several nights with the
exception of some cooling Monday night. A weak system will pass
through the region on Monday but other than bringing us some high
clouds ahead of the front and maybe a some cumulus clouds over the
mountains, precipitation looks to stay north of Shasta County.
Behind the front Monday night into Tuesday north to northeast
flow will set up. Winds should stay up enough in the valley to
help warm the overnight lows especially over the north and
westside of the valley. Temperatures will remain warmer than
normal during the day with the north and some spots on the
westside of the valley noticeably warmer than the rest of the
valley. Winds do not look that strong at this time but the
strongest winds will be over the north and westside of the valley
(15-25 mph with gusts to around 30 mph) and through favored passes
and over ridges for the mountains and foothills (40-50 mph
gusts).

Winds will become lighter Tuesday night and that will allow
valley nighttime temperatures to cool a little while winds over
the western slopes will increase once again before decreasing
Wednesday morning. Thermal belt areas will stay warmer than the
prior night. Warmer than normal daytime temperatures will
continue on Wednesday.

.EXTENDED DISCUSSION (Thursday THROUGH Sunday)...

The extended forecast remains on track with amplified ridging
over the west coast extending in to canada. This will push any wet
weather well to the north of California. Ensemble guidance is
hinting at the possibility of an increased off shore flow pattern
as the ridge builds into next weekend. Therefore, dry weather is
expected to prevail with little day to day change in conditions.
High temperatures are forecast to be 5 to 15 degrees above
climatology. While cool, slightly below average lows are expected
for the Valley. However, locations along the thermal belts will
likely stay a bit warmer due to the inversion in place.

&&

.AVIATION...

VFR conditions expected with generally light winds under 10 kts.
MVFR possible KMOD due to BR after around 10 UTC.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$
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