Alert archive / California / Wind Advisories in 2020
Wind Advisory 78, NWS Los Angeles, CA
NWS Los Angeles, CA issued this wind advisory at Dec 2, 2020, 9:47 AM PST for Los Angeles County, California. It took effect at Dec 2, 2020, 8:00 PM PST. It was in force for 40 hr.
The area
The counties it named.
The facts
- Issued
- Dec 2, 2020, 9:47 AM PST (17:47 UTC)
- In effect from
- Dec 2, 2020, 8:00 PM PST
- Expired
- Dec 4, 2020, 12:00 PM PST
- In force
- 40 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 17:52 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 12:00Z, 5.8 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
- 4382 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
078 WWUS76 KLOX 021747 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 947 AM PST Wed Dec 2 2020 CAZ040-041-030600- /O.CAN.KLOX.WI.Y.0077.000000T0000Z-201202T2000Z/ /O.NEW.KLOX.WI.Y.0078.201203T0400Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 947 AM PST Wed Dec 2 2020 ...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...From 8 PM this evening to 3 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. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ053-054-030600- /O.UPG.KLOX.HW.A.0010.201203T0800Z-201204T2000Z/ /O.NEW.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.EXT.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 947 AM PST Wed Dec 2 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 30 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, northeast winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ046-088-030600- /O.UPG.KLOX.HW.A.0010.201203T0800Z-201204T2000Z/ /O.NEW.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.EXT.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Including the cities of Santa Clarita, Newhall, and Valencia 947 AM PST Wed Dec 2 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 25 to 40 mph with gusts up to 60 mph expected. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Santa Monica Mountains and Santa Clarita Valley. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5, Highway 14, and Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. 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. && $$ CAZ044-045-547-030600- /O.EXT.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 947 AM PST Wed Dec 2 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 50 mph tonight and Thursday. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MW
11 follow-up statements
699 WWUS76 KLOX 022119 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 119 PM PST Wed Dec 2 2020 CAZ053-054-030600- /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ 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 119 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 30 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, northeast winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. 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. && $$ CAZ046-088-030600- /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Including the cities of Santa Clarita, Newhall, and Valencia 119 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 25 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 45 mph. Strongest in the mountains. * WHERE...Santa Monica Mountains and Santa Clarita Valley. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5, Highway 14, and Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ044-045-547-030600- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 119 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 55 mph tonight and Thursday. Strongest in the hills. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 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. && $$ CAZ040-041-030600- /O.CON.KLOX.WI.Y.0078.201203T0400Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 119 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...From 8 PM this evening to 3 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ059-030600- /O.NEW.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 119 PM PST Wed Dec 2 2020 ...HARD FREEZE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Antelope Valley. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Similar cold temperatures are expected Thursday night into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MW
942 WWUS76 KLOX 022126 CCA NPWLOX URGENT - WEATHER MESSAGE...CORRECTED National Weather Service Los Angeles/Oxnard CA 126 PM PST Wed Dec 2 2020 CAZ053-054-030600- /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, and Sandberg 126 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 30 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, northeast winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ046-088-030600- /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Including the cities of Santa Clarita, Newhall, and Valencia 126 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...For the High Wind Warning, northeast winds 25 to 40 mph with gusts up to 65 mph expected. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 45 mph. Strongest in the mountains. * WHERE...Santa Monica Mountains and Santa Clarita Valley. * WHEN...For the High Wind Warning, from 10 PM this evening to 3 PM PST Thursday. For the Wind Advisory, until 10 PM PST this evening. * 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5, Highway 14, and Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. 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. && $$ CAZ044-045-547-030600- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 126 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 55 mph tonight and Thursday. Strongest in the hills. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ040-041-030600- /O.CON.KLOX.WI.Y.0078.201203T0400Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 126 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 3 PM PST THURSDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...From 8 PM this evening to 3 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. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ059-030600- /O.COR.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 126 PM PST Wed Dec 2 2020 ...HARD FREEZE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Antelope Valley. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Similar cold temperatures are expected Friday night into Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MW
086 WWUS76 KLOX 030559 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 959 PM PST Wed Dec 2 2020 CAZ053-054-031400- /O.EXP.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ 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 959 PM PST Wed Dec 2 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... ...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... * WHAT...Northeast winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 PM PST Thursday. * 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. 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. && $$ CAZ046-088-031400- /O.EXP.KLOX.WI.Y.0077.000000T0000Z-201203T0600Z/ /O.CON.KLOX.HW.W.0013.201203T0600Z-201203T2300Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Including the cities of Santa Clarita, Newhall, and Valencia 959 PM PST Wed Dec 2 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... ...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... * WHAT...Northeast winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Santa Monica Mountains and Santa Clarita Valley. * WHEN...Until 3 PM PST Thursday. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5, Highway 14, and Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ044-045-547-031400- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 959 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 55 mph tonight and Thursday. Strongest in the hills. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 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. && $$ CAZ040-041-031400- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 959 PM PST Wed Dec 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...Until 3 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ059-031400- /O.CON.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 959 PM PST Wed Dec 2 2020 ...HARD FREEZE WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Antelope Valley. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Similar cold temperatures are expected Friday night into Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ Stewart
811 WWUS76 KLOX 030817 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1217 AM PST Thu Dec 3 2020 CAZ046-053-054-088-031630- /O.CON.KLOX.HW.W.0013.000000T0000Z-201203T2300Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 1217 AM PST Thu Dec 3 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ034-035-031600- /O.NEW.KLOX.FG.Y.0029.201203T0817Z-201203T1600Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast- Including the cities of San Luis Obispo, Pismo Beach, Morro Bay, Cambria, San Simeon, Santa Maria, Lompoc, and Vandenberg 1217 AM PST Thu Dec 3 2020 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...San Luis Obispo County Central Coast and Santa Barbara County Central Coast. * WHEN...Until 8 AM PST this morning. * IMPACTS...Very low visibility will create dangerous driving conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ CAZ044-045-547-031630- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 1217 AM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 55 mph tonight and Thursday. Strongest in the hills. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ040-041-031630- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 1217 AM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...Until 3 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. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ059-031630- /O.CON.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 1217 AM PST Thu Dec 3 2020 ...HARD FREEZE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Antelope Valley. * WHEN...From this evening through Friday morning. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Similar cold temperatures are expected Friday night into Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ASR
180 WWUS76 KLOX 031152 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 352 AM PST Thu Dec 3 2020 CAZ034-035-031300- /O.CAN.KLOX.FG.Y.0029.000000T0000Z-201203T1600Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast- Including the cities of San Luis Obispo, Pismo Beach, Morro Bay, Cambria, San Simeon, Santa Maria, Lompoc, and Vandenberg 352 AM PST Thu Dec 3 2020 ...DENSE FOG ADVISORY IS CANCELLED... The dense fog has dissipated. $$ CAZ046-053-054-088-032300- /O.CON.KLOX.HW.W.0013.000000T0000Z-201203T2300Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 352 AM PST Thu Dec 3 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Ventura County Mountains and Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ044-045-547-032300- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201203T2300Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 352 AM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph today, increasing to 20 to 30 mph with gusts to 55 mph tonight and Thursday. Strongest in the hills. * WHERE...Ventura County Interior Valleys, except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until 3 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. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 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. && $$ CAZ040-041-032300- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 352 AM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Ventura and Los Angeles County Coast, mainly from Ventura to Malibu to the Hollywood Hills. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ059-032300- /O.CON.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 352 AM PST Thu Dec 3 2020 ...HARD FREEZE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING... * WHAT...Sub-freezing temperatures as low as 16 possible. * WHERE...Antelope Valley. * WHEN...From this evening through Friday morning. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Similar cold temperatures are expected Friday night into Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
414 WWUS76 KLOX 032104 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 104 PM PST Thu Dec 3 2020 CAZ059-040515- /O.UPG.KLOX.HZ.A.0005.201204T0600Z-201204T1700Z/ /O.NEW.KLOX.HZ.W.0006.201204T0600Z-201204T1700Z/ /O.NEW.KLOX.HZ.A.0006.201205T0600Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 104 PM PST Thu Dec 3 2020 ...HARD FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST FRIDAY... ...HARD FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING... * WHAT...For the Hard Freeze Warning, sub-freezing temperatures as low as 16 expected. For the Hard Freeze Watch, sub-freezing temperatures as low as 17 possible. * WHERE...Antelope Valley. * WHEN...For the Hard Freeze Warning, from 10 PM this evening to 9 AM PST Friday. For the Hard Freeze Watch, from Friday evening through Saturday morning. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ046-053-054-088-040515- /O.EXB.KLOX.WI.Y.0078.201203T2300Z-201204T2000Z/ /O.CON.KLOX.HW.W.0013.000000T0000Z-201203T2300Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 104 PM PST Thu Dec 3 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... ...WIND ADVISORY IN EFFECT UNTIL NOON PST FRIDAY... * WHAT...For the High Wind Warning, northeast winds 25 to 40 mph with gusts up to 60 mph. For the Wind Advisory, northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Monica Mountains, Ventura County Mountains, Los Angeles County Mountains, and Santa Clarita Valley. * WHEN...For the High Wind Warning, until 3 PM PST this afternoon. For the Wind Advisory, until noon PST Friday. * 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. Travel may be difficult at times. This includes Interstate 5 and Highway 14 in Los Angeles County. 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. && $$ CAZ044-045-547-040515- /O.EXT.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 104 PM PST Thu Dec 3 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL NOON PST FRIDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 55 mph, decreasing to 15 to 25 mph with gusts to 40 mph later this afternoon through Friday morning. * WHERE...Ventura County Interior Valleys except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until noon PST Friday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways may be affected by gusty cross winds. Travel may be difficult at times. This includes Interstate 5 the 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ040-041-032300- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 104 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Ventura County Coast and Los Angeles County Coast including Downtown Los Angeles. * WHEN...Until 3 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. * ADDITIONAL DETAILS...This will impact Highways 1 and 101 as well as the 405 through and just below the Sepulveda Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MW
632 WWUS76 KLOX 032306 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 306 PM PST Thu Dec 3 2020 CAZ046-053-054-088-040715- /O.EXP.KLOX.HW.W.0013.000000T0000Z-201203T2300Z/ /O.CON.KLOX.WI.Y.0078.000000T0000Z-201204T2000Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 306 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... ...HIGH WIND WARNING WILL EXPIRE AT 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Santa Monica Mountains, Ventura County Mountains, Los Angeles County Mountains, and Santa Clarita Valley. * WHEN...Until noon PST Friday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Travel on roadways may be affected by gusty cross winds. This includes Highways 14, 33, and 126 and Interstate 5. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ040-041-040015- /O.EXP.KLOX.WI.Y.0078.000000T0000Z-201203T2300Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Including the cities of Ventura, Oxnard, Camarillo, Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 306 PM PST Thu Dec 3 2020 ...WIND ADVISORY WILL EXPIRE AT 3 PM PST THIS AFTERNOON... Winds are diminishing this afternoon and the wind advisory will be allowed to expire. $$ CAZ059-040715- /O.CON.KLOX.HZ.W.0006.201204T0600Z-201204T1700Z/ /O.CON.KLOX.HZ.A.0006.201205T0600Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 306 PM PST Thu Dec 3 2020 ...HARD FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST FRIDAY... ...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING... * WHAT...For the Hard Freeze Warning, sub-freezing temperatures as low as 16 expected. For the Hard Freeze Watch, sub-freezing temperatures as low as 17 possible. * WHERE...Antelope Valley. * WHEN...For the Hard Freeze Warning, from 10 PM this evening to 9 AM PST Friday. For the Hard Freeze Watch, from Friday evening through Saturday morning. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ044-045-547-040715- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Interior Valleys-Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Santa Paula, Fillmore, Ojai, Piru, Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 306 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 40 mph. Local gusts to 50 mph are possible in favored foothill locations. * WHERE...Ventura County Interior Valleys except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until noon PST Friday. * 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...Travel on roadways may be affected by gusty cross winds. This includes Interstate 5 and 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. && $$ Hall
015 WWUS76 KLOX 040453 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 853 PM PST Thu Dec 3 2020 CAZ044-041300- /O.NEW.KLOX.FZ.W.0009.201204T1000Z-201204T1700Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 853 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST FRIDAY FOR THE OJAI VALLEY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected in the Ojai Valley. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Ventura County Interior Valleys. * WHEN...For the Freeze Warning, from 2 AM to 9 AM PST Friday. For the Wind Advisory, until noon PST Friday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops and other sensitive vegetation. Extended exposure to cold can cause hypothermia for animals and people. Vehicle windshields will be frosted. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. Plan for extra time to defrost vehicle windshields. && $$ CAZ059-041300- /O.EXT.KLOX.HZ.W.0006.201204T0453Z-201204T1700Z/ /O.CON.KLOX.HZ.A.0006.201205T0600Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 853 PM PST Thu Dec 3 2020 ...HARD FREEZE WARNING NOW IN EFFECT UNTIL 9 AM PST FRIDAY... ...HARD FREEZE WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING... * WHAT...For the Hard Freeze Warning, sub-freezing temperatures as low as 16 expected. For the Hard Freeze Watch, sub-freezing temperatures as low as 17 possible. * WHERE...Antelope Valley. * WHEN...For the Hard Freeze Warning, until 9 AM PST Friday. For the Hard Freeze Watch, from Friday evening through Saturday morning. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ035-039-041300- /O.NEW.KLOX.FR.Y.0010.201204T1000Z-201204T1700Z/ Santa Barbara County Central Coast- Santa Barbara County South Coast- Including the cities of Santa Maria, Lompoc, Vandenberg, Santa Barbara, Montecito, and Carpinteria 853 PM PST Thu Dec 3 2020 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST FRIDAY... * WHAT...Temperatures as low as 32 degrees will result in frost formation. * WHERE...Santa Barbara County Central Coast and Santa Barbara County South Coast. * WHEN...From 2 AM to 9 AM PST Friday. * IMPACTS...Frost can damage sensitive plants and harm pets if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ046-053-054-088-041300- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201204T2000Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 853 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Santa Monica Mountains, Ventura County Mountains, Los Angeles County Mountains, and Santa Clarita Valley. * WHEN...Until noon PST Friday. * 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...Travel on roadways may be affected by gusty cross winds. This includes Highways 14, 33, and 126 and Interstate 5. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-547-041300- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 853 PM PST Thu Dec 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST FRIDAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 40 mph. Local gusts to 50 mph are possible in favored foothill locations. * WHERE...Ventura County Interior Valleys except the Ojai Valley, Ventura County Coastal Valleys and San Fernando Valley. * WHEN...Until noon PST Friday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Travel on roadways may be affected by gusty cross winds. This includes Interstate 5 and 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Hall
338 WWUS76 KLOX 041120 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 320 AM PST Fri Dec 4 2020 CAZ059-042000- /O.CON.KLOX.HZ.W.0006.000000T0000Z-201204T1700Z/ /O.CON.KLOX.HZ.A.0006.201205T0600Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 320 AM PST Fri Dec 4 2020 ...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...HARD FREEZE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY MORNING... * WHAT...For the Hard Freeze Warning, sub-freezing temperatures as low as 16 expected. For the Hard Freeze Watch, sub-freezing temperatures as low as 17 possible. * WHERE...Antelope Valley. * WHEN...For the Hard Freeze Warning, until 9 AM PST this morning. For the Hard Freeze Watch, from this evening through Saturday morning. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ044-042000- /O.CON.KLOX.FZ.W.0009.000000T0000Z-201204T1700Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 320 AM PST Fri Dec 4 2020 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected in the Ojai Valley. For the Wind Advisory, northeast winds 15 to 25 mph with gusts up to 40 mph. * WHERE...Ventura County Interior Valleys. * WHEN...For the Freeze Warning, until 9 AM PST this morning. For the Wind Advisory, until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops and other sensitive vegetation. Extended exposure to cold can cause hypothermia for animals and people. Vehicle windshields will be frosted. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. Plan for extra time to defrost vehicle windshields. && $$ CAZ035-039-041700- /O.CON.KLOX.FR.Y.0010.000000T0000Z-201204T1700Z/ Santa Barbara County Central Coast- Santa Barbara County South Coast- Including the cities of Santa Maria, Lompoc, Vandenberg, Santa Barbara, Montecito, and Carpinteria 320 AM PST Fri Dec 4 2020 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING... * WHAT...Temperatures as low as 32 degrees will result in frost formation. * WHERE...Santa Barbara County Central Coast and Santa Barbara County South Coast. * WHEN...Until 9 AM PST this morning. * IMPACTS...Frost can damage sensitive plants and harm pets if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ046-053-054-088-042000- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201204T2000Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 320 AM PST Fri Dec 4 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Monica Mountains, Ventura County Mountains, Los Angeles County Mountains, and Santa Clarita Valley. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Travel on roadways may be affected by gusty cross winds. This includes Highways 14, 33, and 126 and Interstate 5. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-547-042000- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 320 AM PST Fri Dec 4 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 40 mph. * WHERE...Ventura County Interior Valleys except the Ojai Valley, Ventura County Coastal Valleys and Western 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...Travel on roadways may be affected by gusty cross winds. This includes Interstate 5 and 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. && $$ Kaplan
907 WWUS76 KLOX 041708 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 908 AM PST Fri Dec 4 2020 CAZ059-050115- /O.EXP.KLOX.HZ.W.0006.000000T0000Z-201204T1700Z/ /O.UPG.KLOX.HZ.A.0006.201205T0600Z-201205T1700Z/ /O.NEW.KLOX.HZ.W.0007.201205T0800Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 908 AM PST Fri Dec 4 2020 ...HARD FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SATURDAY... ...THE EARLIER HARD FREEZE WARNING FOR TODAY HAS EXPIRED... * WHAT...Several hours of temperatures near or below 20 degrees are expected. * WHERE...Antelope Valley. * WHEN...From midnight tonight to 9 AM PST Saturday. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ044-050115- /O.EXP.KLOX.FZ.W.0009.000000T0000Z-201204T1700Z/ /O.NEW.KLOX.FZ.W.0010.201205T0800Z-201205T1700Z/ /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 908 AM PST Fri Dec 4 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SATURDAY... ...THE EARLIER FREEZE WARNING FOR TODAY HAS EXPIRED... * WHAT...For the Freeze Warning, several hours of sub-freezing temperatures around 30 degrees are expected. For the Wind Advisory, Northeast winds 15 to 25 mph with gusts to 35 mph. * WHERE...Ventura County Interior Valleys. * WHEN...For the Freeze Warning, from midnight tonight to 9 AM PST Saturday. For the Wind Advisory, 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. Frost and freeze conditions will kill crops and other sensitive vegetation. Extended exposure to cold can cause hypothermia for animals and people. Vehicle windshields will be frosted. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. Plan for extra time to defrost vehicle windshields. && $$ CAZ035-039-041815- /O.EXP.KLOX.FR.Y.0010.000000T0000Z-201204T1700Z/ Santa Barbara County Central Coast- Santa Barbara County South Coast- Including the cities of Santa Maria, Lompoc, Vandenberg, Santa Barbara, Montecito, and Carpinteria 908 AM PST Fri Dec 4 2020 ...FROST ADVISORY HAS EXPIRED... Temperatures have gone above freezing. $$ CAZ046-053-054-088-042000- /O.CON.KLOX.WI.Y.0078.000000T0000Z-201204T2000Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 908 AM PST Fri Dec 4 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Northeast winds 15 to 30 mph with gusts to 45 mph are expected. * WHERE...Santa Monica Mountains, Ventura County Mountains, Los Angeles County Mountains, and Santa Clarita 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...Travel on roadways may be affected by gusty cross winds. This includes Highways 14, 33, and 126 and Interstate 5. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-547-042000- /O.CON.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 908 AM PST Fri Dec 4 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 35 mph. * WHERE...Ventura County Valleys and Western San Fernando Valley. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Travel on roadways may be affected by gusty cross winds. This includes Interstate 5 and 23, 101, 118, 170, 210, and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ RK
807 WWUS76 KLOX 042016 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1216 PM PST Fri Dec 4 2020 CAZ044-051700- /O.EXP.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ /O.CON.KLOX.FZ.W.0010.201205T0800Z-201205T1700Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 1216 PM PST Fri Dec 4 2020 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SATURDAY... ...WIND ADVISORY HAS EXPIRED... * WHAT...Sub-freezing temperatures as low as 38 expected. * WHERE...Areas in and around Ojai in the Ventura County Interior Valleys. * WHEN...From midnight tonight to 9 AM PST Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. Extended exposure to cold can cause hypothermia for animals and people. Vehicle windshields will be frosted. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Plan for extra time to defrost vehicle windshields. && $$ CAZ046-053-054-088-042130- /O.EXP.KLOX.WI.Y.0078.000000T0000Z-201204T2000Z/ Santa Monica Mountains Recreational Area-Ventura County Mountains- Los Angeles County Mountains excluding the Santa Monica Range- Santa Clarita Valley- Including the cities of Lockwood Valley, Mount Pinos, Acton, Mount Wilson, Sandberg, Santa Clarita, Newhall, and Valencia 1216 PM PST Fri Dec 4 2020 ...WIND ADVISORY HAS EXPIRED... Locally gusty winds will continue, but winds will be much weaker and less widespread than earlier. Critical fire weather conditions will continue however (See LAXRFWLOX). $$ CAZ045-547-042130- /O.EXP.KLOX.WI.Y.0077.000000T0000Z-201204T2000Z/ Ventura County Coastal Valleys- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Woodland Hills, Northridge, Burbank, and Universal City 1216 PM PST Fri Dec 4 2020 ...WIND ADVISORY HAS EXPIRED... Locally gusty winds will continue, but winds will be much weaker and less widespread than earlier. $$ CAZ059-051700- /O.CON.KLOX.HZ.W.0007.201205T0800Z-201205T1700Z/ Antelope Valley- Including the cities of Lancaster and Palmdale 1216 PM PST Fri Dec 4 2020 ...HARD FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SATURDAY... * WHAT...Several hours of temperatures near or below 20 degrees are expected. * WHERE...Antelope Valley. * WHEN...From midnight tonight to 9 AM PST Saturday. * IMPACTS...Damage to outdoor plumbing possible. Expect severe damage to crops or sensitive vegetation, and harm to unprotected pets or livestock. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before this wind advisory went out at Dec 2, 9:21 AM PST, 26 minutes earlier.
Area forecast discussion, Dec 2, 9:21 AM PST, 26 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
921 AM PST Wed Dec 2 2020
.SYNOPSIS...01/852 PM.
A very dry offshore flow pattern will persist over the region
into next week and keep mild days in place with cool overnight
lows in wind sheltered areas. Gusty northeasterly winds are
expected for the rest of the week, possibly damaging at times in
the mountains and foothills Thursday. Lighter offshore winds
expected over the weekend into early next week.
&&
.SHORT TERM (TDY-FRI)...02/918 AM.
A little offshore burst this morning is generating some very
isolated advisory level winds, mainly just the Porter Ranch area
and western Santa Monica Mountains where gusts to around 40 mph
have occurred. Otherwise, main change in the forecast is that
the models now are in good agreement showing a significant
decrease in winds Thursday night into Friday to levels that we are
currently seeing across the area this morning. So even advisories
might be hard to justify except for isolated spots. So the High
Wind Watch will be converted to a warning for the mountains and
(though marginal) the SC Valley, but only through Thursday
afternoon. Other valleys and coast will stay in the advisory
range.
***From Previous Discussion***
A strong and cold upper low will spin through the great plains
tonight it will bend the upper lever flow over Srn CA to the NE
brining one ingredient for a major Santa Ana event to the area. A
grip of cold air will advect in to the state in the NE flow
(although the amount of cold air advection is less than it was
forecast at this time). This is the second ingredient for a major
Santa Ana event. Lastly a cold dome of sfc high pressure will
build into the great basin which will produce an offshore grad
between 8 and 9 mb from the east. This strong sfc push is the 3rd
and final ingredient for a major Santa Ana. Only 1 to 2 MB of
offshore flow from the north so this Santa Ana will be a little
more east focused.
All that said it must be noted that all three wind parameters are
trending weaker in this morning's forecast compared to 24 hours
ago. If this trend continues the event may not produce warning
level wind gusts. Will leave the high wind watch in place for now
and see what the 12Z runs produce.
Still expect a very windy day Thursday with gusts to at least 55
mph across the same wind corridor from Central LA county to SW
VTA county. Since this event will be more easterly than
northeasterly it is possible that Avalon will be affected by
strong winds as well.
Despite the adiabatic compressional warming there will be cooling
everywhere due to the large amount of cool air moving in from the
east. The interior will cool 4 to 7 degrees while the coasts and
vlys will see 3 to 5 degrees of cooling.
It will be very dry and the low humidities and very strong winds
will produce very dangerous fire weather conditions please see the
products LAXFWFLOX, LAXRFWLOX and the Fire Weather forecast
discussion below for full details.
The latest mdls are really backing off on the offshore flow and
upper support for the winds for Friday. If these conditions come
true there will likely be no advisory level gusts. Not going to
buy all the way into this new forecast just yet but did reduce the
winds in all areas. There will be no cool air advection and this
along with the continued offshore flow will bring 2 to 5 degrees
of warming to the area.
.LONG TERM (SAT-TUE)...02/314 AM.
Pretty good confidence in the forecast for Sat and Sun. The GFS
and the EC are not in the best of agreement but the differences
should not affect the weekend forecast that much. Both days will
be mostly clear with about 3 MB of offshore flow from both the N
and the E. There will be slight warming each day and by Sunday max
temps across the coasts and vlys will be in the 70s which is 4 to
8 degrees above normals.
Not much confidence in the forecast for next week at all. Both the
EC and GFS forecast that a small piece of energy is going to
split off form the main jet over the Pac NW and then move into NV.
From there both mdls suggest that it will grow into large cut off
low which will retrograde somewhere over CA. Both mdls now some
kind of light rain in the So Cal forecast for late next week. The
ensembles are all over the place as well and really think that all
of the solutions are wrong. For the moment will just keep a
generic dry offshore flow pattern going for Monday and Tuesday
forecast with continued above normal temps. It will be interesting
to see how the mdls handle this time period in the upcoming 12Z
and 00Z runs.
&&
.AVIATION...02/1231Z.
At 1152Z at KLAX, there was no marine layer. There was a sfc
based inversion with a top of 700 feet and a temperature of 21 C.
High confidence in CAVU TAFs. Lgt-ocnl mdt turbc over and near to
hier trrn aft 14Z.
KLAX...High confidence in 12Z CAVU TAF. Good confidence that an
east wind component will be 8 kt or less.
KBUR...High confidence in 12Z CAVU TAF. Lgt-ocnl mdt turbc over
and near to hier trrn aft 14Z. +/- 10KT LLWS possible aft 14Z.
&&
.MARINE...02/130 AM.
Outer Waters... Winds and seas will remain below Small Craft
Advisory(SCA) levels through early Thursday morning. By mid-
morning Thursday there is a 60% chance that hazardous seas for
swells reaching 10 feet is likely initially across the northern
portions before spreading to NW of San Nicolas Island by late
Thursday morning or early afternoon. Therefore, have issued a SCA
for hazardous seas for the large swells expected to reach 10-11
feet through Friday afternoon. Otherwise, seas should lower to
below SCA thresholds through early next week.
Inner Waters north of Point Sal...Similar conditions are expected
in respect to an increasing NW to W swell Thursday morning and
continue through Friday afternoon. Winds are not expected to
reach SCA thresholds, however due to the hazardous seas, will be
issuing a SCA for the same time period as the outer waters. Peak
swell should reach 10 feet. The combination of a long periods
swell, could cause some higher steep waves near shore.
Inner Waters S of Point Conception...For the waters near shore
from Point Mugu to Santa Monica, moderate to high confidence in
SCA level NE winds this morning. A SCA will go into effect early
this morning through noon today. The rest of the inner waters
inside the Southern California Bight will likely remain below SCA
level through this evening. From late Wednesday night through
Friday, there is a 70% chance of SCA level NE winds, a bit
stronger from Ventura to Santa Monica likely extending out to
Santa Cruz Island, as well as portions of the San Pedro Channel to
Catalina. There is a chance that gusty NE winds may impact east-
facing harbors such as Avalon Harbor and Two Harbors on Catalina
Island.
&&
.BEACHES...02/248 AM.
A storm across the Northern and Central Pacific earlier this week
has produced a large swell that will affect the Central Coast by
Thursday morning through Friday evening. The combination of the
northwest swell of around 8-10 feet with a long period between
17-20 seconds will bring high surf 10 to 14 feet to the Central
Coast starting early Thursday morning and continue through Friday
evening. There could be local sets to 17 feet at times for NW to W
facing beaches. A High Surf Advisory was issued last evening
valid from early Thursday morning through Friday evening.
Some of the swell energy is likely to refract across portions of
the Santa Barbara Channel and should bring some elevated surf up
between 4-6 feet across exposed west facing beaches from Santa
Barbara to L.A. County by Friday.
There is an increased risk for ocean drowning. Rip currents can
pull swimmers and surfers out to sea. Large breaking waves can
cause injury, wash people off beaches and rocks, and capsize small
boats near shore.
&&
.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect from 6 AM Thursday to 10 PM PST
Friday for zones 34-35. (See LAXCFWLOX).
Wind Advisory in effect until noon PST today for zones 40-41. (See LAXNPWLOX).
Wind Advisory in effect until midnight PST tonight for zones
44>46-53-54-88-547. (See LAXNPWLOX).
High Wind Watch in effect from late tonight through Friday
morning for zones 46-53-54-88. (See LAXNPWLOX).
Red Flag Warning in effect from 6 PM this evening to 6 PM PST
Friday for zones 240-241-244-245-547-548. (See LAXRFWLOX).
Red Flag Warning in effect from 6 PM this evening to 10 PM
PST Saturday for zones 246-253-254-288. (See LAXRFWLOX).
PZ...Small Craft Advisory in effect from 9 AM Thursday to 6 PM PST
Friday for zones 645-670-673-676. (See LAXMWWLOX).
Small Craft Advisory in effect until noon PST today for zone
655. (See LAXMWWLOX).
&&
.HAZARD POTENTIAL OUTLOOK (FRI-TUE).
Periods of offshore winds and dry conditions could lead to
brief critical fire weather conditions into the weekend. High
surf or strong rip currents will create hazardous ocean conditions
at most beaches into at least Friday, and possibly Saturday. Near
freezing conditions over coastal Santa Barbara and San Luis
Obispo Counties may damage sensitive plants and crops this
weekend.
&&
PUBLIC...MW/Rorke
AVIATION...CK
MARINE...Kaplan/Stewart
BEACHES...Kaplan
SYNOPSIS...Hall
weather.gov/losangelesThe office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 8:48 PM PST | High Surf Advisory | LOX | Los Angeles | 3 days |
| Dec 1, 8:48 PM PST | Wind Advisory | LOX | Los Angeles | 63 hr |
| Dec 1, 9:00 PM PST | Small Craft Advisory | LOX | 6 hr | |
| Dec 2, 2:26 AM PST | Small Craft Advisory | LOX | 67 hr | |
| Dec 2, 3:11 AM PST | Small Craft Advisory | LOX | 6 hr | |
| Dec 2, 9:47 AM PST | High Wind Warning | LOX | Los Angeles | 29 hr |
| Dec 2, 1:19 PM PST | Hard Freeze Watch | LOX | 24 hr |
Nearby
Wind Advisories in California, 2020Every wind advisory in 2020
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.