Alert archive / California / Winter Storm Warnings in 2021

Winter Storm Warning 6, NWS Las Vegas, NV

December 21, 2021Inyo County, California

NWS Las Vegas, NV issued this winter storm warning at Dec 21, 2021, 1:00 AM PST for Inyo County, California. It took effect at Dec 22, 2021, 4:00 PM PST. It was in force for 4 days. 6 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 21, 2021, 1:00 AM PST (09:00 UTC)
In effect from
Dec 22, 2021, 4:00 PM PST
Expired
Dec 26, 2021, 10:35 AM PST
In force
4 days
Issued by
NWS Las Vegas, NV

County Inyo County, CA

The radar

The Edwards AFB radar (KEYX), 158 km from the middle of the area, began a volume at 09:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Dec 24, 1:45 PM PSTSNOW 18Aspendell, CASNOW TOTAL. SNOW STARTED APPROXIMATED 1900 12/22, ENDED APPROXIMATELY 0800 12/24.
Dec 24, 2:06 PM PSTHEAVY SNOW 306 Ese South Lake, CABIG PINE CREEK SNOTEL REPORTS A STORM TOAL SNOW OF 30 INCHES. SNOW STARTED 7 PM 12/22, ENDED 8 AM 7/24.
Dec 24, 2:08 PM PSTHEAVY SNOW 2411 Sw Lone Pine, CACOTTONWOOD LAKES SNOTEL SITE REPORTS STORM TOTAL SNOW OF 24 INCHES. SNOW STARTED 7 PM 12/22, ENDED 10 PM 12/23.
Dec 24, 2:12 PM PSTHEAVY SNOW 229 Wnw Round Valley, CAROCK CREEK LAKES SNOTEL REPORTS STORM TOTAL SNOW OF 22 INCHES. SNOW STARTED 12/22 6 PM, ENDED 10 PM 12/23.
Dec 24, 2:15 PM PSTHEAVY SNOW 271 Nne South Lake, CASOUTH LAKE SNOTEL SITE REPORTS STORM TOTAL SNOW 27 INCHES. SNOW STARTED 10 PM 12/22, ENDED 10 AM 12/24.
Dec 26, 12:01 AM PSTSNOW 12 Nne Round Valley, CACHP REPORTS HWY 395 WAS CLOSED AT GORGE RD DUE TO SNOW ON THE ROADWAY. AMOUNT OF ACCUMULATED SNOW UNKNOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 9.0 hours before the alert went out and 168 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 00:00Z on 2021-12-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2021-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2555 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

769 
WWUS45 KVEF 210900
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
100 AM PST Tue Dec 21 2021

CAZ519-221000-
/O.UPG.KVEF.WS.A.0005.211223T0000Z-211227T0000Z/
/O.NEW.KVEF.WS.W.0006.211223T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
100 AM PST Tue Dec 21 2021

...WINTER STORM WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST
SUNDAY...

* WHAT...Periods of heavy snow. Total snow accumulations of 2 to 3
  feet above 7000 feet...5 to 10 inches above 5000 feet. Winds 
  could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...From 4 PM Wednesday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult to impossible. Gusty
  winds could bring down tree branches. Roads leading into the
  Sierra will be impassable. 

* ADDITIONAL DETAILS...Heavy snow is expected mainly above 7000
  feet through Thursday. A brief lull in the snowfall is expected
  Friday before another colder system brings additional heavy 
  snow above 5000 feet through the weekend. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ521-221000-
/O.NEW.KVEF.WW.Y.0010.211223T0000Z-211224T1200Z/
White Mountains of Inyo County-
100 AM PST Tue Dec 21 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM WEDNESDAY TO 4 AM
PST FRIDAY ABOVE 6500 FEET...

* WHAT...Snow expected above 6500 feet. Total snow accumulations
  of 5 to 10 inches. Winds gusting as high as 50 mph.

* WHERE...White Mountains of Inyo County.

* WHEN...From 4 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Icy and snow covered roads are possible in the
  mountain terrain...particularly Westgard Pass and White Mountain
  Road.

* ADDITIONAL DETAILS...Additional snowfall is likely over the
  weekend along with lower snow levels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
11 follow-up statements
579 
WWUS45 KVEF 220935
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
135 AM PST Wed Dec 22 2021

CAZ519-231200-
/O.CON.KVEF.WS.W.0006.211223T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
135 AM PST Wed Dec 22 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Total snow accumulations of 2 to 
  3 feet above 8000 feet...5 to 10 inches above 6000 feet. Winds 
  could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...From 4 PM Wednesday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Heavy snow is expected mainly above 7000
  feet through Thursday. Snow levels will fall Friday through the
  weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ521-231200-
/O.CON.KVEF.WW.Y.0010.211223T0000Z-211224T1200Z/
White Mountains of Inyo County-
135 AM PST Wed Dec 22 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 AM PST FRIDAY ABOVE 6500 FEET...

* WHAT...Snow expected above 6500 feet. Total snow accumulations 
  of 5 to 10 inches. Winds gusting as high as 50 mph.

* WHERE...White Mountains of Inyo County.

* WHEN...From 4 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Icy and snow covered roads are possible in the 
  mountain terrain...particularly Westgard Pass and White 
  Mountain Road.

* ADDITIONAL DETAILS...Additional snowfall is possible over the 
  weekend along with lower snow levels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
363 
WWUS45 KVEF 231035
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
235 AM PST Thu Dec 23 2021

CAZ519-240000-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
235 AM PST Thu Dec 23 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Total snow accumulations of 2 to 
  3 feet above 8000 feet...5 to 10 inches above 6000 feet. Winds 
  could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...From 4 PM Wednesday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Heavy snow is expected mainly above 7000
  feet today. Snow levels will fall Friday through the weekend 
  with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-240000-
/O.EXB.KVEF.WW.Y.0010.211224T0000Z-211225T0000Z/
Spring Mountains-Red Rock Canyon-
235 AM PST Thu Dec 23 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 PM PST FRIDAY ABOVE 8000 FEET...

* WHAT...Heavy snow expected, mostly above 8000 feet. Total snow
  accumulations of up to 12 inches possible between 8000 and 9500
  feet. Higher amounts possible above 9500 feet. Winds gusting as
  high as 45 mph.

* WHERE...Spring Mountains, including Lee Canyon to the Mount
  Charleston Summit. 

* WHEN...From 4 PM this afternoon to 4 PM PST Friday.

* IMPACTS...Roadways above 8000 feet could see significant
  snowfall accumulations resulting in hazardous travel conditions.
  Heavy snow and gusty winds could also result in very low
  visibility. 

* ADDITIONAL DETAILS...Snow levels will begin to fall below 8000
  feet early Friday morning and could result in minor
  accumulations between 7000 and 8000 feet. However, majority of
  precipitation expected below 8000 feet is expected to be
  rainfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ521-240000-
/O.CON.KVEF.WW.Y.0010.000000T0000Z-211224T1200Z/
White Mountains of Inyo County-
235 AM PST Thu Dec 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY ABOVE 6500 FEET...

* WHAT...Snow expected above 6500 feet. Total snow accumulations 
  of 5 to 10 inches. Winds gusting as high as 50 mph.

* WHERE...White Mountains of Inyo County.

* WHEN...From 4 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Icy and snow covered roads are possible in the 
  mountain terrain...particularly Westgard Pass and White 
  Mountain Road.

* ADDITIONAL DETAILS...Additional snowfall is possible over the 
  weekend along with lower snow levels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
352 
WWUS45 KVEF 232132
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
132 PM PST Thu Dec 23 2021

CAZ519-241200-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
132 PM PST Thu Dec 23 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Total snow accumulations of 2 to 
  3 feet above 8000 feet...5 to 10 inches above 6000 feet. Winds 
  could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...From 4 PM Wednesday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Heavy snow is expected mainly above 7000 
  feet today. Snow levels will fall Friday through the weekend 
  with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ521-241200-
/O.CON.KVEF.WW.Y.0010.000000T0000Z-211224T1200Z/
White Mountains of Inyo County-
132 PM PST Thu Dec 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
FRIDAY ABOVE 6500 FEET...

* WHAT...Snow expected above 6500 feet. Total snow accumulations 
  of 5 to 10 inches. Winds gusting as high as 50 mph.

* WHERE...White Mountains of Inyo County.

* WHEN...From 4 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Icy and snow covered roads are possible in the 
  mountain terrain...particularly Westgard Pass and White 
  Mountain Road.

* ADDITIONAL DETAILS...Additional snowfall is possible over the 
  weekend along with lower snow levels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-241200-
/O.CON.KVEF.WW.Y.0010.211224T0000Z-211225T0000Z/
Spring Mountains-Red Rock Canyon-
132 PM PST Thu Dec 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
FRIDAY ABOVE 7000 FEET...

* WHAT...Heavy snow expected, mostly above 8000 feet. Total snow
  accumulations of up to 12 inches possible between 8000 and 9500
  feet with most of the accumulation occuring overnight. Higher 
  amounts possible above 9500 feet. Winds gusting as high as 45 
  mph.

* WHERE...Spring Mountains, including Lee Canyon to the Mount 
  Charleston Summit.

* WHEN...From 4 PM this afternoon to 4 PM PST Friday.

* IMPACTS...Roadways above 8000 feet could see significant 
  snowfall accumulations resulting in hazardous travel 
  conditions. Heavy snow and gusty winds could also result in 
  very low visibility.

* ADDITIONAL DETAILS...Snow levels will fall from 9500 feet to
  8000 feet by early Friday morning. Snow levels will continue to
  lower below 7000 feet during the morning hours and could result
  in minor accumulations between 7000 and 8000 feet. However, 
  majority of precipitation expected below 8000 feet is expected 
  to be rainfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
750 
WWUS45 KVEF 241200
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
400 AM PST Fri Dec 24 2021

CAZ521-241300-
/O.EXP.KVEF.WW.Y.0010.000000T0000Z-211224T1200Z/
White Mountains of Inyo County-
400 AM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS
MORNING ABOVE 6500 FEET...

Heavy snowfall has ended over the White Mountains this morning and
any additional snowfall should be minor. Therefore, the advisory
will be allowed to expire. 

$$

CAZ519-250000-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
400 AM PST Fri Dec 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow accumulations
  of 1 to 2 feet above 8000 feet and 5 to 10 inches above 6000 
  feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will fall Friday through the 
  weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-250000-
/O.CON.KVEF.WW.Y.0010.000000T0000Z-211225T0000Z/
Spring Mountains-Red Rock Canyon-
400 AM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 7000 FEET...

* WHAT...Heavy snow expected, mostly above 7000 feet. Total snow
  accumulations of up to 12 inches remains possible between 8000
  and 9500 feet. Up to 6 inches of snowfall is possible between
  7000 and 8000 feet. Higher amounts possible above 9500 feet.
  Winds gusting as high as 50 mph.

* WHERE...Spring Mountains, including Lee Canyon to the Mount 
  Charleston Summit.

* WHEN...Through 4 PM PST this afternoon.

* IMPACTS...Roadways above 8000 feet could see significant 
  snowfall accumulations resulting in hazardous travel 
  conditions. Heavy snow and gusty winds could also result in 
  very low visibility.

* ADDITIONAL DETAILS...Snow levels will continue to lower below 
  7000 feet during the morning hours and could result in minor 
  accumulations between 7000 and 8000 feet. However, majority of 
  precipitation expected below 8000 feet is expected to be 
  rainfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
484 
WWUS45 KVEF 241850
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
1050 AM PST Fri Dec 24 2021

NVZ019-242000-
/O.CAN.KVEF.WW.Y.0010.000000T0000Z-211225T0000Z/
Spring Mountains-Red Rock Canyon-
1050 AM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Snowfall has mostly come to an end across the advisory area. While
a few flurries are possible over the next few hours, no
significant additional accumulations are expected. 

$$

CAZ519-251015-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
1050 AM PST Fri Dec 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday, with the majority of the snow
  falling Saturday afternoon into Sunday morning.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will fall Friday through the 
  weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
090 
WWUS45 KVEF 251036
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
236 AM PST Sat Dec 25 2021

CAZ519-252245-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
236 AM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday, with the majority of the snow
  falling this afternoon into Sunday morning.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will continue to fall through 
  the weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
891 
WWUS45 KVEF 251139
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
339 AM PST Sat Dec 25 2021

CAZ519-260000-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
339 AM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday, with the majority of the snow 
  falling this afternoon into Sunday morning.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will continue to fall through 
  the weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ015-260000-
/O.NEW.KVEF.WW.Y.0011.211226T0000Z-211226T1800Z/
Lincoln County-
339 AM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM PST SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. Total snow accumulations
  of 2 to 5 inches possible above 5500 feet; total snow
  accumulations of 6 to 10 inches possible above 8000 feet. South
  winds gusting as high as 45 mph.

* WHERE...Lincoln County.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along
  Highway 93 north of Pioche.

* ADDITIONAL DETAILS...The majority of the snowfall will occur
  between 11 PM tonight and 8 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-260000-
/O.NEW.KVEF.WW.Y.0011.211226T0000Z-211226T1800Z/
Spring Mountains-Red Rock Canyon-
339 AM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO
10 AM PST SUNDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected, mostly above 7000 feet. Total snow
  accumulations of 3 to 6 inches possible above 6000 feet; total
  snow accumulations of 7 to 12 inches possible above 8000 feet.
  South-southwest winds gusting as high as 60 mph.

* WHERE...Spring Mountains-Red Rock Canyon.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along
  State Route 157 and State Route 158. Strong winds could cause
  damage to trees or powerlines.

* ADDITIONAL DETAILS...The majority of the snowfall will occur
  between 10 PM tonight and 4 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
904 
WWUS45 KVEF 252117
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
117 PM PST Sat Dec 25 2021

CAZ519-261030-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
117 PM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday, with the majority of the snow 
  falling this afternoon into Sunday morning.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will continue to fall through 
  the weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ015-261030-
/O.CON.KVEF.WW.Y.0011.211226T0000Z-211226T1800Z/
Lincoln County-
117 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. Total snow accumulations 
  of 2 to 5 inches possible above 5500 feet; total snow 
  accumulations of 6 to 10 inches possible above 8000 feet. 
  South winds gusting as high as 45 mph.

* WHERE...Lincoln County.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along 
  Highway 93 north of Pioche.

* ADDITIONAL DETAILS...The majority of the snowfall will occur 
  between 11 PM tonight and 8 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-261030-
/O.CON.KVEF.WW.Y.0011.211226T0000Z-211226T1800Z/
Spring Mountains-Red Rock Canyon-
117 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected, mostly above 7000 feet. Total snow 
  accumulations of 3 to 6 inches possible above 6000 feet; total 
  snow accumulations of 7 to 12 inches possible above 8000 feet. 
  South-southwest winds gusting as high as 60 mph.

* WHERE...Spring Mountains-Red Rock Canyon.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along 
  State Route 157 and State Route 158. Strong winds could cause 
  damage to trees or powerlines.

* ADDITIONAL DETAILS...The majority of the snowfall will occur 
  between 10 PM tonight and 4 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

Morgan

For more information from the National Weather Service visit
https://weather.gov/lasvegas
256 
WWUS45 KVEF 260732
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
1132 PM PST Sat Dec 25 2021

CAZ519-261215-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
1132 PM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST Sunday, with the majority of the snow 
  falling this afternoon into Sunday morning.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will continue to fall through 
  the weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ520-261200-
/O.EXB.KVEF.WW.Y.0011.000000T0000Z-211226T1200Z/
Owens Valley-
Including Bishop, Independence, Lone Pine, and Olancha
1132 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY...

* WHAT...Snow accumulations between 1 and 3 inches. Reduced
  visibility below 1 mile at times. Gusts to 40 mph.

* WHERE...Owens Valley.

* WHEN...Until 4 AM PST Sunday.

* IMPACTS...Travel could be very difficult on Highway 395 and
  State Route 6, particularly on roadways less traveled. 
  Visibility will be greatly reduced, adding to the travel hazards
  expected tonight.

* ADDITIONAL DETAILS...Snowfall is accumulating on area roadways
  including Highway 395 and State Route 6 in the Owens Valley,
  where chain restrictions are in place. Heaviest snowfall will
  occur from now until 1 AM PST. Bishop Airport is currently
  reporting a visibility of less than a mile.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ015-261215-
/O.CON.KVEF.WW.Y.0011.000000T0000Z-211226T1800Z/
Lincoln County-
1132 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. Total snow accumulations 
  of 2 to 5 inches possible above 5500 feet; total snow 
  accumulations of 6 to 10 inches possible above 8000 feet. 
  South winds gusting as high as 45 mph.

* WHERE...Lincoln County.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along 
  Highway 93 north of Pioche.

* ADDITIONAL DETAILS...The majority of the snowfall will occur 
  between 11 PM tonight and 8 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ019-261215-
/O.CON.KVEF.WW.Y.0011.000000T0000Z-211226T1800Z/
Spring Mountains-Red Rock Canyon-
1132 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SUNDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected, mostly above 7000 feet. Total snow 
  accumulations of 3 to 6 inches possible above 6000 feet; total 
  snow accumulations of 7 to 12 inches possible above 8000 feet. 
  South-southwest winds gusting as high as 60 mph.

* WHERE...Spring Mountains-Red Rock Canyon.

* WHEN...From 4 PM this afternoon to 10 AM PST Sunday.

* IMPACTS...Travel could be very difficult, particularly along 
  State Route 157 and State Route 158. Strong winds could cause 
  damage to trees or powerlines.

* ADDITIONAL DETAILS...The majority of the snowfall will occur 
  between 10 PM tonight and 4 AM PST Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
008 
WWUS45 KVEF 261200
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
400 AM PST Sun Dec 26 2021

NVZ015-019-261300-
/O.CAN.KVEF.WW.Y.0011.000000T0000Z-211226T1800Z/
Lincoln County-Spring Mountains-Red Rock Canyon-
400 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Precipitation has largely ceased across the Spring Mountains in
Clark County and across Lincoln County, with no significant 
additional accumulates expected. The Winter Weather Advisory is
cancelled for these areas.

$$

CAZ520-261300-
/O.EXP.KVEF.WW.Y.0011.000000T0000Z-211226T1200Z/
Owens Valley-
Including Bishop, Independence, Lone Pine, and Olancha
400 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS
MORNING...

Precipitation has ended in the Owens Valley this morning, so the
Winter Weather Advisory has been allowed to expire on time.

$$

CAZ519-270000-
/O.CON.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
Including Aspendell
400 AM PST Sun Dec 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Periods of heavy snow. Additional new snow 
  accumulations of 1 to 2 feet above 8000 feet and 5 to 10 
  inches above 6000 feet. Winds could gust as high as 50 mph.

* WHERE...Eastern Sierra Slopes.

* WHEN...Through 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches. Roads leading into the 
  Sierra will be impassable.

* ADDITIONAL DETAILS...Snow levels will continue to fall through 
  the weekend with additional accumulations of snow likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas
171 
WWUS45 KVEF 261835
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
1035 AM PST Sun Dec 26 2021

CAZ519-261945-
/O.CAN.KVEF.WS.W.0006.000000T0000Z-211227T0000Z/
Eastern Sierra Slopes-
1035 AM PST Sun Dec 26 2021

...WINTER STORM WARNING IS CANCELLED...

The previous storm which dropped heavy snow in the Sierra has
moved away, so the Winter Storm Warning is cancelled. The next
storm will arrive on Monday.

$$

Morgan

For more information from the National Weather Service visit
https://weather.gov/lasvegas

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 21, 1:00 AM PSTWinter Weather AdvisoryVEFInyo3 days

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.