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Soda Springs, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Donner Summit CA
National Weather Service Forecast for:
Donner Summit CA
Issued by: National Weather Service Sacramento, CA |
| Updated: 12:32 am PST Nov 23, 2024 |
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Overnight
Rain/Snow and
Areas
Freezing Fog
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Saturday
Heavy Snow
and Areas
Freezing Fog
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Saturday
Night
Chance Snow
Showers
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Sunday
Snow Showers
Likely
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Sunday
Night
Snow Showers
Likely
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Monday
Snow Showers
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Monday
Night
Heavy Snow
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Tuesday
Snow Showers
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Tuesday
Night
Snow Showers
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| Lo 28 °F |
Hi 32 °F |
Lo 18 °F |
Hi 31 °F |
Lo 23 °F |
Hi 33 °F |
Lo 26 °F |
Hi 32 °F |
Lo 19 °F |
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Winter Storm Warning
Overnight
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Rain and snow showers, becoming all snow after 1am. The rain and snow could be heavy at times. Areas of fog between 4am and 5am. Areas of freezing fog before 4am, then areas of freezing fog after 5am. Low around 28. West southwest wind around 21 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 5 to 9 inches possible. |
Saturday
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Snow showers, mainly before 5pm. The snow could be heavy at times. Areas of fog before 7am. Areas of freezing fog after 7am. High near 32. Southwest wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible. |
Saturday Night
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A chance of snow showers before 11pm, then a chance of snow showers after 4am. Mostly cloudy, with a low around 18. Southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New snow accumulation of 1 to 3 inches possible. |
Sunday
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Snow showers likely, mainly after 10am. Mostly cloudy, with a high near 31. South southwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible. |
Sunday Night
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Snow showers likely. Mostly cloudy, with a low around 23. South southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible. |
Monday
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Snow showers. High near 33. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible. |
Monday Night
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Snow showers. The snow could be heavy at times. Low around 26. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible. |
Tuesday
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Snow showers. Cloudy, with a high near 32. |
Tuesday Night
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Snow showers. Mostly cloudy, with a low around 19. |
Wednesday
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A chance of snow showers. Partly sunny, with a high near 32. |
Wednesday Night
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A chance of snow showers. Mostly cloudy, with a low around 17. |
Thanksgiving Day
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A slight chance of snow showers. Mostly sunny, with a high near 36. |
Thursday Night
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A slight chance of snow showers. Mostly cloudy, with a low around 20. |
Friday
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A slight chance of snow showers. Mostly sunny, with a high near 38. |
Forecast from NOAA-NWS
for Donner Summit CA.
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Weather Forecast Discussion
363
FXUS66 KSTO 222028
AFDSTO
Area Forecast Discussion
National Weather Service Sacramento CA
1228 PM PST Fri Nov 22 2024
.SYNOPSIS...
Day 3 of a strong Atmospheric River will continue to bring
moderate to heavy rain to the area through tonight. Heavy snow is
then expected over the Sierra off and on through Tuesday morning
above 6000 feet. Rain chances will slowly decrease over the valley
with dry conditions by early next week through Thanksgiving.
*Winter Storm Warning: From 4 PM Today through 4 PM Tuesday for
elevations above 6000 feet along the Sierra/ Southern Cascades
including Interstate 80 and Highway 50.
*Flood Watch: Through 4 AM Tonight for Valley/foothills locations
generally north Interstate 80 and below 3000 feet.
.DISCUSSION...
The last wave of energy and moisture from the strong atmospheric
river system will continue to push across the area for the
remainder of the night into Saturday morning. The AR will stall
out a bit over the I-80 corridor late this afternoon and evening
and will likely bring some urban and small stream flooding but
overall high impacts not expected. We have issued an urban and
small stream advisory for these expected impacts. This main bulk
of rain tonight will be further south then the first 2 days of the
storm which should help with overall impacts. Also tonight as the
main push of moisture moves across snow levels will be up around
7000 feet but will quickly drop down to around 5000 feet by
Saturday morning. This snow will continue most of the day
Saturday. At lower elevations Saturday precipitation will take a
break with better chances in foothills with upslope westerly flow.
There will also likely be at least some thunderstorm activity
Saturday as we should get some clearing in the valley allowing
things to destabilize a bit. At this time looks like main threat
would remain south of Park Fire burn scar...but may have to take a
closer look tonight and tomorrow for burn scar risk.
Saturday night through Sunday...our Winter Storm Warning will
continue but we should see a break in heavier snow.
Monday...upper energy remain off shore and flow amplifies a bit to
pull some higher precipitable water northward into our area yet
again. Overall...this will result in an uptick in snow above 5500
once again.
.EXTENDED DISCUSSION (Tuesday THROUGH Friday)...
Ensembles in good agreement that last of the upper energy will
finally push across NorCal. This will result in yet another day of
higher level snow in the Sierra bringing totals generally 1 to 3
feet with around 4 at highest elevations. Significant
accumulations should remain above 6000 feet.
Wednesday and beyond NorCal will be in a general dry northwest
flow aloft which will result in dry conditions and temperatures in
the mid 50s to around 60. A mild low impact Thanksgiving looks on
track at this time. Rasch
&&
.AVIATION...
Moderate to locally heavy precipitation continues to move across
the region resulting in periods of VFR/MVFR/IFR conditions across
the Valley and foothills with areas of IFR/LIFR in the mountains.
Conditions are expected to improve after 10Z Saturday and going
into Saturday. Gusty southerly winds will continue, with gusts of
20 to 40 kts in the Valley and foothills, and 30 to 50 kts over
the Sierra. Winds are expected to decrease for the next 24 hours
but remain breezy through the day with gusts 15-30 kts in the
Valley by the evening.
&&
.STO WATCHES/WARNINGS/ADVISORIES...
Flood Watch through late tonight for Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-
Shasta Lake Area / Northern Shasta County.
Winter Storm Warning from 4 PM this afternoon to 4 PM PST
Tuesday for West Slope Northern Sierra Nevada-Western Plumas
County/Lassen Park.
&&
$$
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