Alert archive / California / Winter Storm Warnings in 2021

Winter Storm Warning 3, NWS Sacramento, CA

February 1, 2021

NWS Sacramento, CA issued this winter storm warning at Feb 1, 2021, 2:15 AM PST. It took effect at Feb 1, 2021, 7:00 PM PST. It was in force for 25 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 1, 2021, 2:15 AM PST (10:15 UTC)
In effect from
Feb 1, 2021, 7:00 PM PST
Expired
Feb 2, 2021, 7:41 PM PST
In force
25 hr
Issued by
NWS Sacramento, CA

The text

As transmitted.

485 
WWUS46 KSTO 011015
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
215 AM PST Mon Feb 1 2021

...Impactful Winter Storm Monday Night through early Wednesday...

.A winter storm is forecast to move into interior northern
California Monday night lasting into Wednesday morning, bringing 
periods of heavy snow to the southern Cascades and northern 
Sierra. Snow levels with this system are forecast to remain 
relatively high, with the majority of snow accumulations above 
5000 feet. Heavy snow will make mountain travel difficult to near 
impossible at times, with chain controls and significantly reduced
visibility.

CAZ068-020115-
/O.UPG.KSTO.WS.A.0002.210202T0800Z-210203T1400Z/
/O.NEW.KSTO.WS.W.0003.210202T0300Z-210203T1400Z/
Western Plumas County/Lassen Park-
215 AM PST Mon Feb 1 2021

...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 6 AM
PST WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 8 to 14 inches, with localized
  amounts up to 2 feet, are expected.

* WHERE...Western Plumas County/Lassen Park.

* WHEN...7 PM today to 6 AM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

CAZ069-020115-
/O.UPG.KSTO.WS.A.0002.210202T0800Z-210203T1400Z/
/O.NEW.KSTO.WS.W.0003.210202T1000Z-210203T1400Z/
West Slope Northern Sierra Nevada-
215 AM PST Mon Feb 1 2021

...WINTER STORM WARNING IN EFFECT FROM 2 AM TUESDAY TO 6 AM PST
WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the morning commute on Tuesday. Total snow
  accumulations of 10 to 18 inches, with localized amounts up to 2
  feet, are expected.

* WHERE...West Slope Northern Sierra Nevada.

* WHEN...2 AM Tuesday to 6 AM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$
4 follow-up statements
778 
WWUS46 KSTO 012248
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
248 PM PST Mon Feb 1 2021

...Impactful Winter Storm Tonight through early Wednesday...

.A winter storm is forecast to move into interior northern
California tonight lasting into Wednesday morning, bringing 
periods of heavy snow to the southern Cascades and northern 
Sierra. Snow levels with this system are forecast to remain 
relatively high, with the majority of snow accumulations above 
5000 feet. Heavy snow will make mountain travel difficult to near 
impossible at times, with chain controls and significantly reduced
visibility.

CAZ068-021615-
/O.CON.KSTO.WS.W.0003.210202T0300Z-210203T1400Z/
Western Plumas County/Lassen Park-
248 PM PST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 6 AM PST WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 8 to 18 inches, with localized 
  amounts up to 2 feet, are expected.

* WHERE...Western Plumas County/Lassen Park.

* WHEN...7 PM today to 6 AM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

CAZ069-021615-
/O.CON.KSTO.WS.W.0003.210202T1000Z-210203T1400Z/
West Slope Northern Sierra Nevada-
248 PM PST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 AM TUESDAY TO
6 AM PST WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the morning commute on Tuesday. Total snow
  accumulations of 8 to 18 inches, with localized amounts up to 2
  feet, are expected.

* WHERE...West Slope Northern Sierra Nevada.

* WHEN...2 AM Tuesday to 6 AM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$
157 
WWUS46 KSTO 021435
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
635 AM PST Tue Feb 2 2021

...Impactful Winter Storm Tonight through early Wednesday...

.A winter storm is forecast to move into interior northern
California lasting into Wednesday morning, bringing periods of 
heavy snow to the southern Cascades and northern Sierra. Snow 
levels with this system are forecast to remain relatively high, 
with the majority of snow accumulations above 5000 feet. Heavy 
snow will make mountain travel difficult to near impossible at 
times, with chain controls and significantly reduced visibility.

CAZ068-069-030030-
/O.CON.KSTO.WS.W.0003.000000T0000Z-210203T1400Z/
Western Plumas County/Lassen Park-
West Slope Northern Sierra Nevada-
635 AM PST Tue Feb 2 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 8 to 18 inches, with 
  localized amounts up to 2 feet, are expected.

* WHERE...Western Plumas County/Lassen Park.

* WHEN...7 PM today to 6 AM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$
019 
WWUS46 KSTO 022226
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
226 PM PST Tue Feb 2 2021

...Impactful Winter Storm Continues through Wednesday...

.A winter storm continues to move through interior northern 
California bringing periods of heavy snow to the southern 
Cascades and northern Sierra. There could be a period of lighter 
scattered snow showers overnight tonight before another wave of 
precipitation will bring moderate to heavy snowfall early tomorrow
morning through tomorrow afternoon. Snow levels will drop to 4000
to 4500 feet by tonight, and will fall to 2000 to 3000 feet by 
early tomorrow morning. Snow levels down to 2000 feet could bring 
a few inches of snow to Interstate 5 north of Redding tomorrow 
morning. Moderate to heavy snow will make mountain travel 
difficult at times, with chain controls and reduced visibility.

CAZ068-069-031600-
/O.EXT.KSTO.WS.W.0003.000000T0000Z-210204T0000Z/
Western Plumas County/Lassen Park-
West Slope Northern Sierra Nevada-
226 PM PST Tue Feb 2 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM PST WEDNESDAY
ABOVE 4000 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of 6 to 12 inches, 
  with localized amounts up to 16 inches, are expected.

* WHERE...Western Plumas County/Lassen Park and West Slope 
  Northern Sierra Nevada.

* WHEN...Until 4 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means there will be snow covered
roads and limited visibilities. Travel is not recommended while
the warning is in effect. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency.The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

CAZ013-031600-
/O.NEW.KSTO.WW.Y.0004.210203T1200Z-210204T0000Z/
Shasta Lake Area / Northern Shasta County-
226 PM PST Tue Feb 2 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM PST
WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute on Wednesday. Total snow
  accumulations of 3 to 5 inches, with localized amounts up to 8
  inches, are expected, including down to Interstate 5 north of 
  Redding.

* WHERE...Shasta Lake Area / Northern Shasta County.

* WHEN...4 AM to 4 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$
473 
WWUS46 KSTO 030341
WSWSTO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sacramento CA
741 PM PST Tue Feb 2 2021

...Winter Storm Continues through Wednesday...

.Light scattered snow showers overnight tonight before another 
wave of precipitation will bring moderate snowfall tomorrow 
morning through tomorrow afternoon. Snow levels 4000 to 4500 feet
tonight will fall to 2000 to 3000 feet by tomorrow morning. Snow 
levels down to 2000 feet could bring a few inches of snow to 
Interstate 5 north of Shasta Lake tomorrow morning. Moderate snow 
will make mountain travel difficult at times, with chain controls
and reduced visibility.

CAZ068-069-031145-
/O.CAN.KSTO.WS.W.0003.000000T0000Z-210204T0000Z/
/O.EXB.KSTO.WW.Y.0004.210203T0341Z-210204T0000Z/
Western Plumas County/Lassen Park-
West Slope Northern Sierra Nevada-
741 PM PST Tue Feb 2 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST WEDNESDAY
ABOVE 4000 FEET...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow occurring. Plan on slippery road conditions, 
  including during the evening commute on Wednesday. Additional 
  snow accumulations of 3 to 6 inches, with localized amounts up 
  to 10 inches, are expected.

* WHERE...Western Plumas County/Lassen Park and West Slope 
  Northern Sierra Nevada.

* WHEN...Until 4 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

CAZ013-031145-
/O.CON.KSTO.WW.Y.0004.210203T1200Z-210204T0000Z/
Shasta Lake Area / Northern Shasta County-
741 PM PST Tue Feb 2 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM
PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected. Plan on slippery road conditions, 
  including during the morning commute on Wednesday. Total snow 
  accumulations of 3 to 5 inches, with localized amounts up to 8 
  inches, are expected.

* WHERE...Shasta Lake Area / Northern Shasta County.

* WHEN...4 AM to 4 PM Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

Nearby

Winter Storm Warnings in California, 2021Every winter storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.