Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 6, NWS Los Angeles, CA
NWS Los Angeles, CA issued this winter storm warning at Dec 24, 2021, 9:20 PM PST. It took effect at Dec 25, 2021, 4:00 PM PST. It was in force for 12 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 24, 2021, 9:20 PM PST (05:20 UTC)
- In effect from
- Dec 25, 2021, 4:00 PM PST
- Expired
- Dec 26, 2021, 3:59 AM PST
- In force
- 12 hr
- Issued by
- NWS Los Angeles, CA
The text
As transmitted.
025 WWUS46 KLOX 250520 WSWLOX URGENT - WINTER WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 920 PM PST Fri Dec 24 2021 CAZ052>054-251400- /O.UPG.KLOX.WS.A.0006.211226T0000Z-211226T1800Z/ /O.NEW.KLOX.WS.W.0006.211226T0000Z-211226T1800Z/ Santa Barbara County Mountains-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 920 PM PST Fri Dec 24 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 PM SATURDAY TO 10 AM PST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches likely above 5000 feet, with lighter accumulations down to 3500 to 4000 feet by late Saturday night or early Sunday morning. Southwest winds gusting up to 45 mph will likely cause reduced visibilities in blowing snow. * WHERE...Santa Barbara County Mountains, Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...From 4 PM Saturday to 10 AM PST Sunday. * IMPACTS...Travel will likely be very difficult in the mountains with significant delays and possible road closures. Snow will likely lower to pass level Saturday night through Sunday morning, with a couple inches of snow accumulation possible along Interstate 5 near the Grapevine. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions from CalTrans are available by calling 1 800 4 2 7 7 6 2 3. && $$ Gomberg
4 follow-up statements
197 WWUS46 KLOX 251131 WSWLOX URGENT - WINTER WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 331 AM PST Sat Dec 25 2021 CAZ052>054-260000- /O.CON.KLOX.WS.W.0006.211226T0000Z-211226T1800Z/ Santa Barbara County Mountains-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 331 AM PST Sat Dec 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches likely above 5000 feet, with lighter accumulations down to 3500 to 4000 feet by late tonight or early Sunday morning. Southwest winds gusting up to 45 mph will likely cause reduced visibilities in blowing snow. * WHERE...Santa Barbara County Mountains, Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...From 4 PM this afternoon to 10 AM PST Sunday. * IMPACTS...Travel will likely be very difficult in the mountains with significant delays and possible road closures. Snow will likely lower to pass level Saturday night through Sunday morning, with a couple inches of snow accumulation possible along Interstate 5 near the Grapevine. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions from CalTrans are available by calling 1 800 4 2 7 7 6 2 3. && $$ ASR
591 WWUS46 KLOX 252212 WSWLOX URGENT - WINTER WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 212 PM PST Sat Dec 25 2021 CAZ052>054-260615- /O.CON.KLOX.WS.W.0006.211226T0000Z-211226T1800Z/ Santa Barbara County Mountains-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 212 PM PST Sat Dec 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches likely above 5000 feet, with lighter accumulations down to 3500 to 4000 feet by late tonight or early Sunday morning. Southwest winds gusting up to 45 mph will likely cause reduced visibilities in blowing snow. * WHERE...Santa Barbara County Mountains, Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Travel will likely be very difficult in the mountains with significant delays and possible road closures. Snow will likely lower to pass level Saturday night through Sunday morning, with a couple inches of snow accumulation possible along Interstate 5 near the Grapevine. * ADDITIONAL DETAILS...Another storm will likely bring heavy snow and gusty winds to this area Monday and Monday night. A Winter Storm Warning may be needed for this second storm system. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions from CalTrans are available by calling 1 800 4 2 7 7 6 2 3. && $$ ASR/Sirard
597 WWUS46 KLOX 260049 WSWLOX URGENT - WINTER WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 449 PM PST Sat Dec 25 2021 CAZ052>054-261200- /O.CON.KLOX.WS.W.0006.000000T0000Z-211226T1800Z/ Santa Barbara County Mountains-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 449 PM PST Sat Dec 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches likely above 5000 feet, with lighter accumulations down to 3500 to 4000 feet by late tonight or early Sunday morning. Southwest winds 25 to 40 mph with gusts 45 to 55 mph will likely cause reduced visibilities in blowing snow. * WHERE...Santa Barbara County Mountains, Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Travel will likely be very difficult in the mountains with significant delays and possible road closures. Snow will likely lower to pass level later tonight through Sunday morning, with a couple inches of snow accumulation possible along Interstate 5 near the Grapevine. * ADDITIONAL DETAILS...Another storm will likely bring heavy snow and gusty winds to this area Monday and Monday night. A Winter Storm Warning may be needed for this second storm system. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions from CalTrans are available by calling 1 800 4 2 7 7 6 2 3. && $$ Gomberg
943 WWUS46 KLOX 261159 WSWLOX URGENT - WINTER WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 359 AM PST Sun Dec 26 2021 CAZ052>054-261800- /O.CAN.KLOX.WS.W.0006.000000T0000Z-211226T1800Z/ /O.NEW.KLOX.WS.A.0007.211227T1200Z-211228T1200Z/ Santa Barbara County Mountains-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 359 AM PST Sun Dec 26 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE MONDAY NIGHT... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Heavy snow possible during the day. Total snow accumulations of up to 10 inches possible. Winds could gust as high as 50 mph. * WHERE...Santa Barbara County Mountains, Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...From late tonight through late Monday night. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ ASR
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 9:13 PM PST | Small Craft Advisory | LOX | 59 hr | |
| Dec 24, 9:37 PM PST | Wind Advisory | LOX | Santa Barbara | 36 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.