Alert archive / California / Wind Advisories in 2021
Wind Advisory 22, NWS Los Angeles, CA
NWS Los Angeles, CA issued this wind advisory at Feb 17, 2021, 1:30 PM PST for Los Angeles County, California. It took effect at Feb 17, 2021, 10:00 PM PST. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Feb 17, 2021, 1:30 PM PST (21:30 UTC)
- In effect from
- Feb 17, 2021, 10:00 PM PST
- Expired
- Feb 18, 2021, 2:00 PM PST
- In force
- 16 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 21:31 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 12:00Z, 9.5 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
- 777 m above ground
- 0-6 km bulk shear
- 100 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
361 WWUS76 KLOX 172130 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 130 PM PST Wed Feb 17 2021 CAZ046-053-054-181330- /O.NEW.KLOX.WI.Y.0022.210218T0600Z-210218T2200Z/ Santa Monica Mountains Recreational Area-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 130 PM PST Wed Feb 17 2021 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 PM PST THURSDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts to 45 mph expected. Isolated gusts to 50 mph possible. * WHERE...Ventura County and Los Angeles County Mountains including the Santa Monica Range. * WHEN...From 10 PM this evening to 2 PM PST Thursday. * 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044-045-088-547-181330- /O.NEW.KLOX.WI.Y.0022.210218T0600Z-210218T2200Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Clarita Valley-Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 130 PM PST Wed Feb 17 2021 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 PM PST THURSDAY... * WHAT...North to northeast winds 15 to 25 mph with gusts to 35 mph expected. Isolated gusts to 45 mph possible. * WHERE...Ventura County Valleys, Santa Clarita Valley and San Fernando Valley. * WHEN...From 10 PM this evening to 2 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Kittell
3 follow-up statements
408 WWUS76 KLOX 181358 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 558 AM PST Thu Feb 18 2021 CAZ046-053-054-182200- /O.CON.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Santa Monica Mountains Recreational Area-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 558 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...North to northeast winds 20 to 30 mph with gusts to 45 mph expected. Isolated gusts to 50 mph possible. * WHERE...Ventura County and Los Angeles County Mountains including the Santa Monica Range. * WHEN...Until 2 PM PST this afternoon. * 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044-045-088-547-182200- /O.CON.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Clarita Valley-Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 558 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...North to northeast winds 15 to 25 mph with gusts to 35 mph expected. Isolated gusts to 45 mph possible. * WHERE...Ventura County Valleys, Santa Clarita Valley and San Fernando Valley. * WHEN...Until 2 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ ASR
799 WWUS76 KLOX 181623 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 823 AM PST Thu Feb 18 2021 CAZ040-182200- /O.EXA.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Ventura County Coast- Including the cities of Ventura, Oxnard, and Camarillo 823 AM PST Thu Feb 18 2021 ...WIND ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...Northeast winds 15 to 25 mph with gusts to 35 mph expected. * WHERE...Ventura County Coast. * WHEN...Until 2 PM PST this afternoon. * 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. Poorly anchored canopies and shades can be blown over. * ADDITIONAL DETAILS... PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ046-053-054-182200- /O.CON.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 823 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...North to northeast winds 20 to 30 mph with gusts to 45 mph expected. Isolated gusts to 50 mph possible. * WHERE...Ventura County and Los Angeles County Mountains including the Santa Monica Range. * WHEN...Until 2 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Poorly anchored canopies and shades can be blown over. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044-045-088-547-182200- /O.CON.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- 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 823 AM PST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...North to northeast winds 15 to 25 mph with gusts to 35 mph expected. Isolated gusts to 45 mph possible. * WHERE...Ventura County Valleys, Santa Clarita Valley and San Fernando Valley. * WHEN...Until 2 PM PST this afternoon. * 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. Poorly anchored canopies and shades can be blown over. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
998 WWUS76 KLOX 182136 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 136 PM PST Thu Feb 18 2021 CAZ046-053-054-182245- /O.EXP.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 136 PM PST Thu Feb 18 2021 ...WIND ADVISORY WILL EXPIRE AT 2 PM PST THIS AFTERNOON... The gusty winds peaked a few hours ago and will continue to weaken through the afternoon. $$ CAZ040-044-045-088-547-182245- /O.EXP.KLOX.WI.Y.0022.000000T0000Z-210218T2200Z/ Ventura County Coast-Ventura County Interior Valleys- Ventura County Coastal Valleys-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Ventura, Oxnard, Camarillo, Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 136 PM PST Thu Feb 18 2021 ...WIND ADVISORY WILL EXPIRE AT 2 PM PST THIS AFTERNOON... The gusty winds peaked a few hours ago and will continue to weaken through the afternoon. $$
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.