Georgetown, California 7 Day Weather Forecast

Wx Discussion - Wx Hazards - Wx Special Statements

7 Day Weather Forecast

Weather Forecast Discussion

000
FXUS66 KSTO 141049
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
349 AM PDT Sun Aug 14 2022

.Synopsis...
Hot temperatures return this week with widespread triple digit
high temperatures in the Valley. Smoke from area wildfires will
continue to impact portions of interior Northern California.
Monsoonal showers and isolated thunderstorms will be possible
around mid-week with best chances over the Sierra south of I-80.

&&

.Discussion...
Temperatures on Saturday reached 102 at Redding, 100 for Downtown
Sacramento and Red Bluff. Similar temperatures are expected today,
with triple digit heat the norm this week, trending up even
hotter through mid-week as the 4-Corners high pressure ridge
expands westward. By Monday temperatures in the low to mid 100`s
will be present across the Valley and Delta, with hot weather
extending up through the foothills. An extended period of hot
weather is expected. Downtown Sacramento is forecast to have
triple digit highs through Friday, bringing 7 days in a row with
temperatures 100 or more. In July there was a stretch of 6 days
in a row with triple digit temperatures, 8 in June.

An Excessive Heat Watch continues for the entire Central Valley
forecast office starting late morning on Tuesday. The Watch has
been extended into Friday evening, as the Extreme Forecast Index
(EFI) suggests the heat will be slow to exit. This could be especially
true for areas away from Delta flow influence. Moderate to high
heat risk is forecast for much of the Valley, Delta and foothills
with highs ranging from 95 to around 109 and lows in the mid 60s
to 80. The warmest overnight lows will be along the thermal belts
in the foothills. The hottest high temperatures for interior
Northern California are expected in the northern Sacramento
Valley.

While the high pressure building to the west will bring some
monsoonal moisture over the Sierra, the amount of moisture and the
threat of showers and thunderstorms west of the Sierra Crest has
continued to trend down. The best potential for convection is
over the higher Sierra south of I-80 for Tuesday afternoon and
evening, with a few showers late Wednesday.

&&
.EXTENDED DISCUSSION (Thursday THROUGH Sunday)...
EFI continues to highlight a strong signature for anomalously
high daytime and overnight temperatures through late week.
Ensembles indicate high pressure will linger over interior NorCal
through late week contributing to widespread moderate, and locally
high, heat risk mainly over the valley and foothills.

In addition to the hot temperatures, monsoonal moisture will move
northward. Thunderstorm chances are trending lower later in the
week. Next weekend, some clusters are favoring an upper level
trough off the PacNW coast that may help shift the ridge eastward
leading to some relief in temperatures.
&&

.AVIATION...
VFR conditions next 24 hours. Surface wind gusts below 12 kts,
except local southwest 15-25 kts vicinity west Delta. &&

.STO WATCHES/WARNINGS/ADVISORIES...
Excessive Heat Watch from Tuesday morning through Friday evening
for Carquinez Strait and Delta-Central Sacramento Valley-
Motherlode-Mountains Southwestern Shasta County to Western
Colusa County-Northeast Foothills/Sacramento Valley-Northern
Sacramento Valley-Northern San Joaquin Valley-Southern
Sacramento Valley.

&&

$$

Hazardous Weather Outlook

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