Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 7, NWS Las Vegas, NV
NWS Las Vegas, NV issued this winter storm warning at Dec 26, 2021, 1:03 PM PST for Inyo County, California. It took effect at Dec 27, 2021, 2:00 AM PST. It was in force for 18 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
- Dec 26, 2021, 1:03 PM PST (21:03 UTC)
- In effect from
- Dec 27, 2021, 2:00 AM PST
- Expired
- Dec 27, 2021, 7:32 PM PST
- In force
- 18 hr
- 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 21:05 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.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 9.1 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1277 m above ground
- 0-6 km bulk shear
- 97 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
974 WWUS45 KVEF 262103 WSWVEF URGENT - WINTER WEATHER MESSAGE National Weather Service Las Vegas NV 103 PM PST Sun Dec 26 2021 CAZ519-271000- /O.NEW.KVEF.WS.W.0007.211227T1000Z-211228T0600Z/ Eastern Sierra Slopes- Including Aspendell 103 PM PST Sun Dec 26 2021 ...WINTER STORM WARNING IN EFFECT FROM 2 AM TO 10 PM PST MONDAY... * WHAT...Heavy snow and high winds expected. Total snow accumulations of 2 to 7 inches. Winds gusting as high as 80 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From 2 AM to 10 PM PST Monday. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage. 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. && $$ Morgan For more information from the National Weather Service visit https://weather.gov/lasvegas
4 follow-up statements
440 WWUS45 KVEF 271006 WSWVEF URGENT - WINTER WEATHER MESSAGE National Weather Service Las Vegas NV 206 AM PST Mon Dec 27 2021 CAZ519-280000- /O.CON.KVEF.WS.W.0007.000000T0000Z-211228T0600Z/ Eastern Sierra Slopes- Including Aspendell 206 AM PST Mon Dec 27 2021 ...WINTER STORM WARNING IS NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow and high winds expected. Total snow accumulations of 2 to 7 inches. Winds gusting as high as 80 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From 2 AM to 10 PM PST tonight. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
549 WWUS45 KVEF 271123 WSWVEF URGENT - WINTER WEATHER MESSAGE National Weather Service Las Vegas NV 323 AM PST Mon Dec 27 2021 CAZ519-280000- /O.CON.KVEF.WS.W.0007.000000T0000Z-211228T0600Z/ Eastern Sierra Slopes- Including Aspendell 323 AM PST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow and high winds expected. Total snow accumulations of 2 to 7 inches. Winds gusting as high as 80 mph. * WHERE...Eastern Sierra Slopes. * WHEN...From 2 AM to 10 PM PST tonight. * IMPACTS...Travel could be very difficult. Blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage. 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. && $$ AZZ001-003-280000- /O.NEW.KVEF.WW.Y.0012.211228T0000Z-211229T0600Z/ Northwest Plateau-Northwest Deserts- Including Kingman and Yucca 423 AM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM MST TUESDAY... * WHAT...Lower elevation snow expected. Total snow accumulations of up to 5 inches. Winds gusting as high as 45 mph. * WHERE...Northwest Plateau and Northwest Deserts. * WHEN...From 5 PM this afternoon to 11 PM MST Tuesday. * IMPACTS...Icy and snow covered roads are possible, especially in the mountain terrain, particularly along Interstate 40, State Route 66, State Route 389, and Hualapai Mountain Road. * ADDITIONAL DETAILS...The primary concern will be along Interstate 40 east of Kingman, where up to 3 inches of accumulating snowfall on the roadway is possible. Additional areas of concern include Hualapai Mountain Road, State Route 66 east of Kingman, and State Route 389 from Colorado City to Fredonia, where roadway snow accumulations will result in dangerous travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
529 WWUS45 KVEF 272243 WSWVEF URGENT - WINTER WEATHER MESSAGE National Weather Service Las Vegas NV 243 PM PST Mon Dec 27 2021 CAZ519-280600- /O.CON.KVEF.WS.W.0007.000000T0000Z-211228T0600Z/ Eastern Sierra Slopes- Including Aspendell 243 PM PST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of up to one inch. Winds gusting as high as 75 mph. * WHERE...Eastern Sierra Slopes. * WHEN...Until 10 PM PST this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. Very strong winds could cause extensive tree damage. 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. && $$ AZZ001-003-280600- /O.CON.KVEF.WW.Y.0012.211228T0000Z-211229T0600Z/ Northwest Plateau-Northwest Deserts- Including Kingman and Yucca 343 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST TUESDAY... * WHAT...Snow expected. Total snow accumulations of up to 5 inches. Winds gusting as high as 40 mph. * WHERE...Northwest Plateau and Northwest Deserts. * WHEN...Until 11 PM MST Tuesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions can be obtained by calling 5 1 1. && $$ Morgan For more information from the National Weather Service visit https://weather.gov/lasvegas
248 WWUS45 KVEF 280332 WSWVEF URGENT - WINTER WEATHER MESSAGE National Weather Service Las Vegas NV 732 PM PST Mon Dec 27 2021 CAZ519-280445- /O.CAN.KVEF.WS.W.0007.000000T0000Z-211228T0600Z/ Eastern Sierra Slopes- 732 PM PST Mon Dec 27 2021 ...WINTER STORM WARNING IS CANCELLED... Snow showers have diminished across the Sierra and wind speeds have decreased as well. With improving visibilities and no additional snow accumulations expected, the warning has been cancelled a little early. $$ AZZ001-003-281300- /O.CON.KVEF.WW.Y.0012.000000T0000Z-211229T0600Z/ Northwest Plateau-Northwest Deserts- 832 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST TUESDAY ABOVE 4000 FEET... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 40 mph. * WHERE...Northwest Plateau and Northwest Deserts above 4000 feet. * WHEN...Until 11 PM MST Tuesday. * IMPACTS...Icy and snow covered roads are likely in the mountain terrain. * ADDITIONAL DETAILS...The primary concern will be along Interstate 40 east of Kingman, where accumulating snowfall on the roadway is possible near Fort Rock. Additional areas of concern include Hualapai Mountain Road, State Route 66 east of Kingman, and State Route 389 from Colorado City to Fredonia, where roadway snow accumulations will result in dangerous travel conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/lasvegas
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 26, 1:01 PM PST | Wind Advisory | VEF | Inyo, San Bernardino | 37 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.