Alert archive / California / High Wind Watches in 2021
High Wind Watch 2, NWS San Diego, CA
NWS San Diego, CA issued this high wind watch at Feb 12, 2021, 2:17 AM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Feb 13, 2021, 10:00 AM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 12, 2021, 2:17 AM PST (10:17 UTC)
- In effect from
- Feb 13, 2021, 10:00 AM PST
- Expired
- Feb 12, 2021, 1:19 PM PST
- In force
- Issued by
- NWS San Diego, CA
Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 10:22 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, 10.3 hours before the alert went out and 145 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
- 1401 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- -53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
663 WWUS76 KSGX 121017 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 217 AM PST Fri Feb 12 2021 CAZ055-056-058-060-062-065-122330- /O.NEW.KSGX.HW.A.0002.210213T1800Z-210214T0600Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Diego County Deserts-San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Big Bear Lake, Wrightwood, Julian, Pine Valley, Victorville, Hesperia, Apple Valley, and Desert Hot Springs 217 AM PST Fri Feb 12 2021 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...West winds 25 to 35 mph with gusts to 60 mph possible. * WHERE...Mountains and deserts. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...In the deserts...areas of blowing dust and sand will reduce the visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego
1 follow-up statement
165 WWUS76 KSGX 122119 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 119 PM PST Fri Feb 12 2021 CAZ055-056-058-060-062-065-130530- /O.UPG.KSGX.HW.A.0002.210213T1800Z-210214T0600Z/ /O.NEW.KSGX.HW.W.0003.210213T1800Z-210214T0600Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Diego County Deserts-San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Big Bear Lake, Wrightwood, Idyllwild-Pine Cove, Julian, Victorville, Hesperia, Apple Valley, and Banning 119 PM PST Fri Feb 12 2021 ...HIGH WIND WARNING IN EFFECT FROM 10 AM TO 10 PM PST SATURDAY... * WHAT...West winds 25 to 35 mph with gusts to 60 mph expected. * WHERE...San Bernardino County Mountains, Riverside County Mountains, San Diego County Mountains, Apple and Lucerne Valleys, San Diego County Deserts and San Gorgonio Pass Near Banning. * WHEN...From 10 AM to 10 PM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ061-130530- /O.NEW.KSGX.HW.W.0003.210213T1800Z-210214T0600Z/ Coachella Valley- 119 PM PST Fri Feb 12 2021 ...HIGH WIND WARNING IN EFFECT FROM 10 AM TO 10 PM PST SATURDAY... * WHAT...West winds 20 to 30 mph with local gusts to 55 mph expected. * WHERE...Coachella Valley, strongest in northern and western portions of the valley. * WHEN...From 10 AM to 10 PM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. 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. && $$
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 12, 6:26 AM PST | Gale Watch | SGX | 12 hr | |
| Feb 12, 10:03 AM PST | Areal Flood Advisory | SGX | Riverside, San Bernardino | 59 min |
| Feb 12, 1:19 PM PST | High Wind Warning | SGX | Riverside, San Bernardino, San Diego | 33 hr |
Nearby
High Wind Watches in California, 2021Every high wind watch 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.