Alert archive / California / Wind Advisories in 2021
Wind Advisory 45, NWS Los Angeles, CA
NWS Los Angeles, CA issued this wind advisory at Apr 10, 2021, 2:20 AM PDT for Los Angeles County, California. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Apr 10, 2021, 2:20 AM PDT (09:20 UTC)
- Expired
- Apr 11, 2021, 3:00 AM PDT
- In force
- 25 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 09:23 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, 9.3 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
- 2075 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -26 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
615 WWUS76 KLOX 100920 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 220 AM PDT Sat Apr 10 2021 CAZ039-052-101600- /O.CON.KLOX.HW.W.0015.000000T0000Z-210410T1600Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 220 AM PDT Sat Apr 10 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Areas of northwest to northeast winds 25 to 40 mph with gusts up to 60 mph. Strongest across the hills above Montecito and areas west of Refugio. * WHERE...Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. This includes Highways 101, 154 and 192...as well as the Gaviota and San Marcos Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ054-101730- /O.NEW.KLOX.WI.Y.0045.210410T0920Z-210411T1000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 220 AM PDT Sat Apr 10 2021 ...WIND ADVISORY IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 20 to 30 mph with gusts up to 45 mph. Mainly across the Interstate 5 Corridor. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CK
5 follow-up statements
306 WWUS76 KLOX 101006 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 306 AM PDT Sat Apr 10 2021 CAZ039-052-101600- /O.CON.KLOX.HW.W.0015.000000T0000Z-210410T1600Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 306 AM PDT Sat Apr 10 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * WHAT...Areas of northwest to northeast winds 25 to 40 mph with gusts up to 60 mph. Strongest across the hills above Montecito and areas west of Refugio. * WHERE...Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 9 AM PDT this morning. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. This includes Highways 101, 154 and 192...as well as the Gaviota and San Marcos Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ054-101600- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 306 AM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 25 to 35 mph with gusts up to 50 mph. Mainly across the Interstate 5 Corridor. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CK/DB
135 WWUS76 KLOX 101612 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 912 AM PDT Sat Apr 10 2021 CAZ039-052-110015- /O.EXP.KLOX.HW.W.0015.000000T0000Z-210410T1600Z/ /O.EXA.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 912 AM PDT Sat Apr 10 2021 ...WIND ADVISORY IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 3 AM PDT Sunday. * 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. Travel will be affected on Highway 101 along the Santa Barbara County south coast and through Gaviota Pass, on Highway 154 through San Marcos Pass, and on Highway 192. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ054-110015- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 912 AM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 25 to 35 mph with gusts up to 50 mph. Mainly across the Interstate 5 Corridor. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Travel will be affected on Interstate 5 and Highway 14. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Sirard
126 WWUS76 KLOX 102117 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 217 PM PDT Sat Apr 10 2021 CAZ054-110530- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 217 PM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 25 to 35 mph with gusts up to 50 mph. Mainly across the Interstate 5 Corridor. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 AM PDT Sunday. * 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. Travel will be affected on Interstate 5 and Highway 14. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ039-052-110530- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 217 PM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...North winds 20 to 30 mph with gusts up to 45 mph. Local gusts to 50 mph will be possible. * WHERE...Below and through passes and canyons of the Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Travel will be affected on Highway 101 along the Santa Barbara County south coast and through Gaviota Pass, on Highway 154 through San Marcos Pass, and on Highway 192. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Sirard
094 WWUS76 KLOX 110421 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 921 PM PDT Sat Apr 10 2021 CAZ088-111000- /O.EXA.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Santa Clarita Valley- Including the cities of Santa Clarita, Newhall, and Valencia 921 PM PDT Sat Apr 10 2021 ...WIND ADVISORY IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...North winds 15 to 30 mph with gusts up to 45 mph. * WHERE...Santa Clarita Valley. * WHEN...Until 3 AM PDT Sunday. * 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. Travel will be affected on Interstate 5 and Highway 14. * ADDITIONAL DETAILS... PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ054-111000- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 921 PM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 25 to 35 mph with gusts up to 50 mph. Mainly across the Interstate 5 Corridor. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Travel will be affected on Interstate 5 and Highway 14. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ039-052-111000- /O.CON.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 921 PM PDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY... * WHAT...Northwest to north winds 15 to 30 mph with gusts up to 45 mph below and through passes and canyons. Local gusts to 55 mph in the foothills above Montecito and Gaviota. * WHERE...Below and through passes and canyons of the Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 3 AM PDT Sunday. * 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. Travel will be affected on Highway 101 along the Santa Barbara County south coast and through Gaviota Pass, on Highway 154 through San Marcos Pass, and on Highway 192. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Gomberg
566 WWUS76 KLOX 111009 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 309 AM PDT Sun Apr 11 2021 CAZ039-052-054-088-111115- /O.EXP.KLOX.WI.Y.0045.000000T0000Z-210411T1000Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, Dick Smith Wilderness Area, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 309 AM PDT Sun Apr 11 2021 ...WIND ADVISORY HAS EXPIRED... Wind Advisories have been allowed to expire across the Santa Barbara and Los Angeles County Mountains, the Santa Barbara South Coast and the Santa Clarita Valley. There will be local gusts between 25 and 40 mph through this morning. $$ CK
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.