Alert archive / California / Wind Advisories in 2020
Wind Advisory 21, NWS San Diego, CA
NWS San Diego, CA issued this wind advisory at Nov 26, 2020, 10:02 AM PST for Orange County, California. It took effect at Nov 26, 2020, 4:00 PM PST. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Nov 26, 2020, 10:02 AM PST (18:02 UTC)
- In effect from
- Nov 26, 2020, 4:00 PM PST
- Expired
- Nov 27, 2020, 12:48 PM PST
- In force
- 21 hr
- Issued by
- NWS San Diego, CA
County Orange County, CA
The radar
The Santa Ana Mts radar (KSOX), 20 km from the middle of the area, began a volume at 18:09 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, 6.0 hours before the alert went out and 111 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
- 952 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
427 WWUS76 KSGX 261802 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 1002 AM PST Thu Nov 26 2020 CAZ048-055>057-065-554-270600- /O.NEW.KSGX.HW.W.0009.201127T0000Z-201127T2300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Riverside County Mountains- Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning- Orange County Inland Areas- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, and Mission Viejo 1002 AM PST Thu Nov 26 2020 ...HIGH WIND WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 3 PM PST FRIDAY... * WHAT...Northeast winds 30 to 40 mph with gusts to 65 to 75 mph expected in Santa Ana wind-prone areas. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, San Bernardino County Mountains, Riverside County Mountains, Santa Ana Mountains and Foothills, San Gorgonio Pass Near Banning and Orange County Inland Areas. Strongest winds near the coastal foothills and below the passes and canyons. * WHEN...From 4 PM this afternoon to 3 PM PST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest wind gust potential is from late evening into Friday morning. Winds will weaken through the day on Friday but remain gusty in Santa Ana wind-prone areas. 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. && $$ CAZ552-270600- /O.NEW.KSGX.WI.Y.0021.201127T0000Z-201127T2300Z/ Orange County Coastal Areas- Including the cities of Huntington Beach and Costa Mesa 1002 AM PST Thu Nov 26 2020 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 3 PM PST FRIDAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 40 to 45 mph expected. * WHERE...Orange County Coastal Areas. * WHEN...From 4 PM this afternoon to 3 PM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds are expected overnight into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego
3 follow-up statements
109 WWUS76 KSGX 270551 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 951 PM PST Thu Nov 26 2020 CAZ048-055>057-065-554-271400- /O.CON.KSGX.HW.W.0009.000000T0000Z-201127T2300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Riverside County Mountains- Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning- Orange County Inland Areas- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Banning, Desert Hot Springs, Santa Ana, Anaheim, Garden Grove, Orange, Fullerton, and Mission Viejo 951 PM PST Thu Nov 26 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY... * WHAT...Northeast winds 30 to 40 mph with gusts to 65 to 75 mph expected in Santa Ana wind-prone areas. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, San Bernardino County Mountains, Riverside County Mountains, Santa Ana Mountains and Foothills, San Gorgonio Pass Near Banning and Orange County Inland Areas. Strongest winds near the coastal foothills and below the passes and canyons. * WHEN...Through 3 PM PST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest wind gust potential is from late evening into Friday morning. Winds will weaken through the day on Friday but remain gusty in Santa Ana wind-prone areas. 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. && $$ CAZ552-271400- /O.CON.KSGX.WI.Y.0021.000000T0000Z-201127T2300Z/ Orange County Coastal Areas- Including the cities of Huntington Beach and Costa Mesa 951 PM PST Thu Nov 26 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY... * WHAT...Northeast winds 15 to 25 mph with gusts to 40 to 45 mph expected. * WHERE...Orange County Coastal Areas. * WHEN...Through 3 PM PST Friday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds are expected overnight into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Maxwell
247 WWUS76 KSGX 271002 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 202 AM PST Fri Nov 27 2020 CAZ048-055>057-065-554-272245- /O.CON.KSGX.HW.W.0009.000000T0000Z-201127T2300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Riverside County Mountains- Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning- Orange County Inland Areas- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Idyllwild-Pine Cove, Banning, Desert Hot Springs, Santa Ana, Anaheim, Garden Grove, Orange, and Mission Viejo 202 AM PST Fri Nov 27 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 20 to 30 mph with gusts to 55 mph. Isolated gusts to 70 mph, mainly near and below the Cajon Pass and in the coastal foothills of the Santa Ana Mountains. * WHERE...Orange County Inland Areas, San Gorgonio Pass Near Banning, Santa Ana Mountains and Foothills, Riverside County Mountains, San Bernardino County Mountains and San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds will be through early this morning. 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. && $$ CAZ552-272245- /O.CON.KSGX.WI.Y.0021.000000T0000Z-201127T2300Z/ Orange County Coastal Areas- Including the cities of Huntington Beach and Costa Mesa 202 AM PST Fri Nov 27 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Northeast winds 10 to 20 mph with gusts to 35 mph. * WHERE...Orange County Coastal Areas. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds will be early this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego 17
094 WWUS76 KSGX 272048 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 1248 PM PST Fri Nov 27 2020 CAZ048-055>057-065-554-272200- /O.CAN.KSGX.HW.W.0009.000000T0000Z-201127T2300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Riverside County Mountains- Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning- Orange County Inland Areas- 1248 PM PST Fri Nov 27 2020 ...HIGH WIND WARNING IS CANCELLED... Winds have decreased below criteria for High Wind, so the Warning has been cancelled. Areas of gusty northeast winds of 20 to 30 MPH with local gusts 45 to 50 MPH around midday will slowly decrease for the remainder of the afternoon. $$ CAZ552-272200- /O.CAN.KSGX.WI.Y.0021.000000T0000Z-201127T2300Z/ Orange County Coastal Areas- 1248 PM PST Fri Nov 27 2020 ...WIND ADVISORY IS CANCELLED... Winds have decreased below Advisory criteria and are beginning to turn back onshore so the Advisory has been cancelled. $$ For more information from the National Weather Service visit http://weather.gov/sandiego
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 10:02 AM PST | High Wind Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 27 hr |
| Nov 26, 10:41 AM PST | Small Craft Advisory | SGX | 23 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.