National Weather Service Forecast for: Placerville CA
Issued by: National Weather Service Sacramento, CA
Updated: 4:01 pm PST Feb 2, 2025

Placerville
 
This
Afternoon
This Afternoon: Showers.  High near 54. South wind around 9 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
High: 54 °F
Tonight

Tonight: Showers likely before 9pm, then a chance of showers after 1am.  Cloudy, with a low around 48. South southeast wind 5 to 7 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Low: 48 °F
Monday

Monday: Showers, mainly after 2pm.  High near 54. South wind 6 to 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
High: 54 °F
Monday
Night
Monday Night: Showers.  Low around 45. South southeast wind 9 to 11 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Low: 45 °F
Tuesday

Tuesday: Showers. The rain could be heavy at times.  High near 50. South southeast wind around 14 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%.
High: 50 °F
Tuesday
Night
Tuesday Night: Showers.  Low around 36. Chance of precipitation is 90%.
Low: 36 °F
Wednesday

Wednesday: A 50 percent chance of showers.  Partly sunny, with a high near 50.
High: 50 °F
Wednesday
Night
Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 40.
Low: 40 °F
Thursday

Thursday: Showers, with thunderstorms also possible after 4pm.  Cloudy, with a high near 50.
High: 50 °F
Showers

Showers
Likely then
Chance
Showers
Slight Chance
Showers then
Showers
Showers

Heavy Rain

Showers then
Showers
Likely
Chance
Showers

Chance
Showers

Showers

Flood Watch
 

This Afternoon
 
Showers. High near 54. South wind around 9 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
Showers likely before 9pm, then a chance of showers after 1am. Cloudy, with a low around 48. South southeast wind 5 to 7 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
 
Showers, mainly after 2pm. High near 54. South wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
 
Showers. Low around 45. South southeast wind 9 to 11 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
 
Showers. The rain could be heavy at times. High near 50. South southeast wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%.
Tuesday Night
 
Showers. Low around 36. Chance of precipitation is 90%.
Wednesday
 
A 50 percent chance of showers. Partly sunny, with a high near 50.
Wednesday Night
 
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
 
Showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 50.
Thursday Night
 
Showers and possibly a thunderstorm. Cloudy, with a low around 38.
Friday
 
Showers. Mostly cloudy, with a high near 47.
Friday Night
 
A chance of showers. Partly cloudy, with a low around 30.
Saturday
 
A slight chance of showers. Sunny, with a high near 50.
Saturday Night
 
Widespread frost. Otherwise, mostly clear, with a low around 29.
Sunday
 
Widespread frost. Otherwise, sunny, with a high near 51.

 

Forecast from NOAA-NWS for Placerville CA.


NWS Local Northern CA. Outlook Discussion


191
FXUS66 KSTO 022113
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
113 PM PST Sun Feb 2 2025

.SYNOPSIS...
Despite a relative lull today, impactful weather is expected to
return and persist for much of the week ahead as an elongated
atmospheric river plume and associated systems bring periods of
moderate to heavy rain and mountain snow and gusty southerly winds
to interior NorCal. Major mountain travel impacts are anticipated
throughout the week as a result.

&&

.DISCUSSION...
As of early this afternoon, radar imagery shows early morning
precipitation drifting eastward off of the Sierra crest, with
additional lingering rainfall across the northern Sacramento
Valley and surrounding terrain. Elsewhere, a few isolated, light
showers are evident as well, with overall minimal impacts. Current
probabilities of additional precipitation exceeding 1 inch today
around 60 to 90 percent continue to favor the northern Sacramento
Valley and surrounding terrain and portions of the Sierra/southern
Cascades north of Interstate 80. Otherwise, gusty winds continue
through the early afternoon across portions of the northern and
central Sacramento Valley, but will be gradually decreasing
through the remainder of the day.

The primary longwave trough driving weather impacts remains
firmly positioned over the Pacific Northwest via fluctuating, but
amplified, ridging aloft in place across the central and eastern
CONUS. As this ridging amplifies over the Plains into the early
week period, the longwave trough is expected to retrograde and
deepen westward as an amplified shortwave trough begins to travel
through the flow pattern toward the central CA coast. As these
systems become more in sync, late Monday into Tuesday, heavier
precipitation potential is expected to rapidly increase across the
region. Additionally, southerly wind gusts are expected to be
their strongest as this system builds in and progresses. Prior to
this shortwave introduction, light to moderate precipitation will
persist alongside still breezy southerly winds, with highest
precipitation totals remaining confined to areas generally from
Interstate 80 northward through midday Monday. Shasta County and
the surrounding terrain will see the highest potential for
impactful rainfall, with continued 70 to 95 percent probabilities
of precipitation exceeding 1 inch through Monday evening.

Rainfall will gradually spread southward on Monday as the system
progresses through the region, with heaviest precipitation rates
anticipated late Monday through Tuesday as the shortwave becomes
more centered over interior NorCal. Current probabilities of
precipitation exceeding 2 inches through Wednesday AM continue to
favor (90%+) the northern Sacramento Valley and surrounding
terrain and the length of the Sierra/southern Cascades, with
generally 40 to 60 percent probabilities across the central and
southern Sacramento Valley, dropping to 15 to 30 percent
probabilities for the northern San Joaquin Valley. Snow levels
will vary with this early week wave of precipitation, beginning
around 6000 to 7000 feet on Monday then falling to near 4000 to
5000 feet by midday Tuesday and further to 3000 to 4000 feet by
Wednesday morning. With heaviest precipitation expected to occur
late Monday through Tuesday, most appreciable snowfall
accumulation through midweek is expected to occur above 5500 feet
at this time, although some lower elevation snowfall down to 4000
feet will be possible across the Shasta County mountains and Coast
Range. Resultant probabilities of snowfall exceeding 1 foot sit
around 40 to 60 percent for most locations along the
Sierra/southern Cascades above 5500 feet, with up to 80 to 90
percent probabilities over peaks. Across Shasta County and
surrounding terrain, probabilities of exceeding 4 inches above
4000 feet sit around 30 to 50 percent as well.

With a break between the departing early week shortwave and the
expected late week shortwave, a brief reprieve in the form of a
return to scattered light to moderate precipitation will be
possible on Wednesday. Winds will remain breezy, but are also
expected to decrease as the aforementioned trough ejects eastward.
Resultant probabilities of exceeding a half inch of additional
precipitation on Wednesday sit around 20 to 40 percent across the
northern Sacramento Valley and surrounding terrain and along the
Sierra/southern Cascades, with 10 to 20 percent probabilities
elsewhere.

&&

.EXTENDED DISCUSSION (Thursday THROUGH Sunday)...
As the next shortwave begins to approach the west coast on
Thursday, more widespread precipitation potential will once again
begin to gradually increase. Ensemble guidance has begun to
indicate a slight lag in timing of this wave progression and
attendant precipitation impacts, with heaviest precipitation
trending toward mid Thursday through Friday at this time.
Regardless, the ejecting shortwave is expected to bring the
longwave trough eastward with it as it progresses, which will
result in another period of moderate to heavy precipitation
through the end of the week, alongside likely lower snow levels
than the previous systems as colder air filters in. Given the
uncertainty in timing and exact trajectory to an extent, snowfall
accumulations, particularly at lower elevations, remain somewhat
variable. Still, probabilities of precipitation exceeding 1 inch
through Saturday morning sit around 70 to 90 percent for the
northern Sacramento Valley and surrounding terrain and along the
Sierra/southern Cascades, with 20 to 40 percent probabilities
elsewhere at lower elevations. Snowfall totals of 1 to 5 feet are
expected along the Sierra/southern Cascades, with resultant
probabilities of exceeding 1 foot of snowfall above 5000 feet
around 70 to 95 percent at this time. Given uncertainty in snow
levels, snowfall into lower elevations remains a bit tougher to
gauge at this time, but there is certainly potential to see
accumulating snowfall into the foothills with this late week
system.

Be sure to prepare now for the continued snowy and difficult to
impossible wintry travel in the mountains! In addition to
precipitation, periods of gusty southerly winds are also expected
to continue. For the following weekend, ensembles continue to
suggest a trend toward a drier pattern.

&&

.AVIATION...
Widespread MVFR conditions with areas of IFR/LIFR conditions in
the northern Sacramento Valley are expected to continue for the
next 24 hours across interior NorCal as an atmospheric river
continues to move through the area. Widespread precipitation is
forecast to continue today, with the heaviest precipitation in the
northern Sacramento Valley and foothills/mountains of the Sierra.
Southerly surface winds in the Valley are forecasted around 15
knots with gusts up to 30-40 knots. Southerly gusts in the Sierra
are forecasted up to 65 knots.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
Flood Watch until 10 PM PST this 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-Shasta Lake Area / Northern Shasta County-
Southern Sacramento Valley-West Slope Northern Sierra Nevada-
Western Plumas County/Lassen Park.

Wind Advisory until 4 PM PST this afternoon for Central
Sacramento Valley-Northeast Foothills/Sacramento Valley-Northern
Sacramento Valley.

Winter Storm Warning from 10 AM Monday to 10 AM PST Wednesday
for West Slope Northern Sierra Nevada-Western Plumas
County/Lassen Park.

&&

$$
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