Alert archive / California / Wind Advisories in 2021
Wind Advisory 18, NWS Los Angeles, CA
NWS Los Angeles, CA issued this wind advisory at Feb 5, 2021, 9:55 PM PST for Los Angeles County, California. It took effect at Feb 6, 2021, 12:00 AM PST. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Feb 5, 2021, 9:55 PM PST (05:55 UTC)
- In effect from
- Feb 6, 2021, 12:00 AM PST
- Expired
- Feb 6, 2021, 10:38 AM PST
- In force
- 11 hr
- Issued by
- NWS Los Angeles, CA
County Los Angeles County, CA
The radar
The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 05:52 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
San Diego, CA (KNKX), launched 00:00Z, 5.9 hours before the alert went out and 184 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
- 2525 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
275 WWUS76 KLOX 060555 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 955 PM PST Fri Feb 5 2021 CAZ053-054-061400- /O.NEW.KLOX.WI.Y.0018.210206T0800Z-210206T2000Z/ Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 955 PM PST Fri Feb 5 2021 ...WIND ADVISORY IN EFFECT UNTIL NOON PST SATURDAY... * WHAT...North to northeast winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. This includes Highway 33 in Ventura County as well as Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044>046-088-547-061400- /O.NEW.KLOX.WI.Y.0018.210206T1100Z-210206T2000Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 955 PM PST Fri Feb 5 2021 ...WIND ADVISORY IN EFFECT FROM 3 AM TO NOON PST SATURDAY... * WHAT...North to northeast winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura County Interior Valleys, Ventura County Coastal Valleys, Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...From 3 AM to noon PST Saturday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds.This includes Interstate 5, Highway 126, and the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Hall
2 follow-up statements
075 WWUS76 KLOX 061054 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 254 AM PST Sat Feb 6 2021 CAZ053-054-062000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-210206T2000Z/ Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 254 AM PST Sat Feb 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. This includes Highway 33 in Ventura County as well as Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044>046-088-547-062000- /O.CON.KLOX.WI.Y.0018.210206T1100Z-210206T2000Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 254 AM PST Sat Feb 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...North to northeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Ventura County Interior Valleys, Ventura County Coastal Valleys, Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds.This includes Interstate 5, Highway 126, and the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Kaplan/DB
923 WWUS76 KLOX 061838 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1038 AM PST Sat Feb 6 2021 CAZ044>046-053-054-088-547-061945- /O.CAN.KLOX.WI.Y.0018.000000T0000Z-210206T2000Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley-Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 1038 AM PST Sat Feb 6 2021 ...WIND ADVISORY IS CANCELLED... Winds have remained largely below Advisory levels this morning. As a result, the Wind Advisory is cancelled. $$ Sirard
Nearby
Wind Advisories in California, 2021Every wind advisory 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.