Alert archive / California / High Wind Warnings in 2021
High Wind Warning 5, NWS San Diego, CA
NWS San Diego, CA issued this high wind warning at Feb 24, 2021, 2:25 AM PST for 4 counties in California. It took effect at Feb 24, 2021, 10:00 PM PST. It was in force for 14 hr. 23 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 24, 2021, 2:25 AM PST (10:25 UTC)
- In effect from
- Feb 24, 2021, 10:00 PM PST
- Expired
- Feb 25, 2021, 12:00 PM PST
- In force
- 14 hr
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 10:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 24, 10:40 PM PST | NON-TSTM WND DMG | 4 Nnw Zzyzx, CA | SEMI VEERED OFF OF INTERSTATE 15 DUE TO WINDS. THE SEMI IS STILL UPRIGHT, BUT IS FACING SOUTHBOUND ALONG THE NORTHBOUND SHOULDER. LARGE CHUNK OF GUARD RAIL IN THE LANES. DRIVER INJURED THEIR FOOT. |
| Feb 24, 11:18 PM PST | NON-TSTM WND DMG | 2 Sw Baker, CA | SEMI ROLLED OVER FROM WINDS ON INTERSTATE 15 IN CENTER DIVIDER. |
| Feb 25, 1:55 AM PST | NON-TSTM WND DMG | 1 Sw Baker, CA | SEMI ROLLED OVER FROM WINDS ON INTERSTATE 15 SOUTH OF BAKER AND IS BLOCKING LANES. |
| Feb 25, 4:10 AM PST | NON-TSTM WND GST 72 | 3 Wnw Riverside, CA | WIND GUST OF 72 MPH RECORDED AT MESONET STATION SE851 JURUPA VALLEY (SCE851). WIND GUST REPORTED AT 4:10AM ON FEB 25,2021. |
| Feb 25, 4:41 AM PST | NON-TSTM WND GST 63 | 5 Nnw Fontana, CA | OVERTURNED SEMI-TRUCK ON I-15S AND DUNCAN CANYON RD, FIRST REPORTED AT 4:41 AM. WEATHER STATION IN THE AREA RECORDED NORTHWEST WINDS AT 35 MPH WITH GUSTS TO 59 MPH AT 4:40 AM, AT 4:30AM WINDS AT THE SAME STATION WERE 38MPH WITH GUSTS TO 63 MPH FROM THE NW. |
| Feb 25, 4:54 AM PST | NON-TSTM WND GST 64 | 4 Nw Fontana, CA | OVERTURNED SEMI-TRUCK FIRST REPORTED AT 4:54 AM ON I-210 NEAR THE I-15 INTERCHANGE, BETWEEN SAN SEVAINE RD AND BEECH AVE. WINDS RECORDED BY WEATHER STATION JUST NORTH OF THE AREA SHOW NORTH WINDS 31 MPH WITH GUSTS TO 64 MPH AT 4:50 AM. |
| Feb 25, 5:40 AM PST | NON-TSTM WND GST 81 | 4 Ssw Crestline, CA | WIND GUST OF 81 MPH AT MESONET STATION SE809 CSU SAN BERNARDINO (SCE809). WIND GUST WAS RECORDED AT 5:40 AM FEB 25, 2021. |
| Feb 25, 5:45 AM PST | NON-TSTM WND GST 75 | 4 Ssw Crestline, CA | WIND GUST OF 75 MPH RECORDED AT MESONET STATION HF009 BADGER CANYON (HF009). WIND GUST WAS RECORDED AT 5:45 AM FEB 25, 2021. |
| Feb 25, 6:01 AM PST | DENSE FOG | 6 Se Camp Pendleton, CA | ONE-QUARTER MILE VISIBILITY AT CAMP PENDLETON. |
| Feb 25, 6:15 AM PST | DENSE FOG | 1 Nnw El Cajon, CA | ONE-QUARTER MILE VISIBILITY AT GILLESPIE FIELD AIRPORT. |
| Feb 25, 6:20 AM PST | DENSE FOG | 7 N San Diego, CA | ONE-QUARTER MILE VISIBILITY AT MONTGOMERY FIELD. |
| Feb 25, 6:28 AM PST | DENSE FOG | 2 Ne Oceanside, CA | ONE-QUARTER MILE VISIBILITY AT OCEANSIDE AIRPORT. |
| Feb 25, 6:30 AM PST | NON-TSTM WND GST 77 | 3 Sw Crestline, CA | WIND GUST OF 77 MPH RECORDED AT MESONET STATION SE125 DEVIL CANYON (SCE125). WIND GUST WAS RECORDED AT 6:30 AM ON FEB 25, 2021. |
| Feb 25, 6:30 AM PST | NON-TSTM WND GST 98 | 3 S Crestline, CA | WIND GUST OF 98 MPH AT MESONET STATION HF008 MARSHALL PEAK (SDHGPA). WIND GUST WAS RECORDED AT 6:30 AM FEB 25, 2021. |
| Feb 25, 6:35 AM PST | NON-TSTM WND GST 59 | 4 Ssw Devore, CA | SEMI TRUCK OVERTURNED AND BLOCKING LANES ON I-15 S AND SIERRA AVE. FIRST REPORTED AT 6:35AM. WINDS RECORDED AT 6:30 AM AT SITES IN THE AREA SHOW NORTH TO NORTH-NORTHWEST WINDS, SUSTAINED 34-41 MPH WITH GUSTS 55-59 MPH. |
| Feb 25, 6:50 AM PST | NON-TSTM WND GST 72 | 5 Sw Devore, CA | WIND GUST OF 72 MPH RECORDED AT MESONET STATION SE157 FONTANA (SCE157). WIND GUST WAS RECORDED AT 6:50AM FEB 25, 2021. |
| Feb 25, 6:51 AM PST | NON-TSTM WND GST 74 | 8 Ene Orange, CA | WIND GUST OF 74 MPH RECORDED AT MESONET STATION FRCC1 FREMONT CANYON. WIND GUST WAS RECORDED AT 6:51AM FEB 25, 2021. |
| Feb 25, 7:00 AM PST | NON-TSTM WND GST 71 | 5 Nnw Fontana, CA | WIND GUST OF 71 MPH AT MESONET STATION SE538 FONTANA (SCE538). WIND GUST RECORDED AT 7AM FEB 25, 2021. |
| Feb 25, 7:00 AM PST | NON-TSTM WND GST 77 | 4 S Lytle Creek, CA | WIND GUST OF 77 MPH AT MESONET STATION 056SE LYTLE CREEK SOUTH (SCE1056). WIND GUST WAS RECORDED AT 7 AM FEB 25, 2021. |
| Feb 25, 7:00 AM PST | NON-TSTM WND GST 78 | 5 Nnw Fontana, CA | WIND GUST OF OF 78 MPH AT MESONET STATION SE533 DUNCAN CANYON (SCE533). WIND GUST WAS RECORDED AT 7 AM FEB 25, 2021. |
| Feb 25, 7:22 AM PST | NON-TSTM WND GST 60 | 3 N Fontana, CA | OVERTURNED SEMI-TRUCK AT I-210 E AND SIERRA AVE, FIRST REPORTED AT 7:22AM. AT WEATHER STATION JUST NORTH OF THE LOCATION, WINDS AT 7:10 AND 7:20 AM WERE FROM THE NORTH AT 39-40 MPH WITH GUSTS TO 60 MPH. |
| Feb 25, 8:00 AM PST | NON-TSTM WND GST 63 | 5 Nw Fontana, CA | STREET POLE BLOWN OVER AT THE INTERSECTION OF CHERRY AVE AND N BRIDLEPATH DR. DAMAGE REPORT WAS SENT TO OFFICE AT 8AM. WEATHER STATION JUST SOUTH OF THAT LOCATION RECORDED MOSTLY NORTHERLY WINDS, PEAK GUST OF 63 MPH OCCURRED AT 6:30 AM. WINDS GUSTED BETWEEN 37 |
| Feb 25, 9:45 AM PST | NON-TSTM WND DMG | 1 Nnw Devore, CA | LARGE TREE DOWNED IN YARD. PHOTO SHARED. DEVORE HEIGHTS SCE SITE HAD WIND GUST 49 MPH AT 10 AM FROM THE NORTH (SANTA ANA). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 00:00Z, 10.4 hours before the alert went out and 124 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
- 3461 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
343 WWUS76 KSGX 241025 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 225 AM PST Wed Feb 24 2021 CAZ048-055-057-554-241830- /O.UPG.KSGX.HW.A.0003.210225T0500Z-210225T2200Z/ /O.NEW.KSGX.HW.W.0005.210225T0600Z-210225T2000Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Santa Ana Mountains and Foothills- Orange County Inland Areas- Including the cities of Fontana, Rancho Cucamonga, Crestline, Running Springs, and Orange 225 AM PST Wed Feb 24 2021 ...HIGH WIND WARNING IN EFFECT FROM 10 PM THIS EVENING TO NOON PST THURSDAY... * WHAT...Northeast winds 20 to 30 mph with gusts to 55 mph expected. Isolated gusts to 65 mph. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, San Bernardino County Mountains, Santa Ana Mountains and Foothills and Orange County Inland Areas. * WHEN...From 10 PM this evening to noon PST Thursday. * 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... Use caution if you must drive. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego 17
4 follow-up statements
820 WWUS76 KSGX 242108 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 108 PM PST Wed Feb 24 2021 CAZ048-055-057-554-250515- /O.CON.KSGX.HW.W.0005.210225T0600Z-210225T2000Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Santa Ana Mountains and Foothills- Orange County Inland Areas- Including the cities of Fontana, Rancho Cucamonga, Crestline, Running Springs, and Orange 108 PM PST Wed Feb 24 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO NOON THURSDAY... * WHAT...Northeast winds 20 to 40 mph with gusts to 70 mph. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, San Bernardino County Mountains, Santa Ana Mountains and Foothills and Orange County Inland Areas. * WHEN...From 10 PM this evening to noon Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ Moede
949 WWUS76 KSGX 250549 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 949 PM PST Wed Feb 24 2021 CAZ048-055-057-554-251400- /O.CON.KSGX.HW.W.0005.210225T0600Z-210225T2000Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Santa Ana Mountains and Foothills- Orange County Inland Areas- Including the cities of Fontana, Rancho Cucamonga, Crestline, Running Springs, and Orange 949 PM PST Wed Feb 24 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON PST THURSDAY... * WHAT...Northeast winds 20 to 40 mph with gusts to 70 mph. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, San Bernardino County Mountains, Santa Ana Mountains and Foothills and Orange County Inland Areas. * WHEN...From 10 PM this evening to noon Thursday. * 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. && $$ jmb For more information from the National Weather Service visit http://weather.gov/sandiego
971 WWUS76 KSGX 251027 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 227 AM PST Thu Feb 25 2021 CAZ048-055-057-554-252000- /O.CON.KSGX.HW.W.0005.000000T0000Z-210225T2000Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Santa Ana Mountains and Foothills- Orange County Inland Areas- Including the cities of Fontana, Rancho Cucamonga, Crestline, Running Springs, and Orange 227 AM PST Thu Feb 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Northeast winds 25 to 35 mph with gusts to 60 mph. Isolated gusts to 70 mph. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire, Santa Ana Mountains and Foothills, San Bernardino County Mountains and Orange County Inland Areas. * WHEN...Until noon PST today. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The winds will be strongest through 8 AM, then will gradually diminish through the morning and early afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego
180 WWUS76 KSGX 251956 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 1156 AM PST Thu Feb 25 2021 CAZ048-055-057-554-252100- /O.EXP.KSGX.HW.W.0005.000000T0000Z-210225T2000Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Santa Ana Mountains and Foothills- Orange County Inland Areas- Including the cities of Fontana, Rancho Cucamonga, Crestline, Running Springs, and Orange 1156 AM PST Thu Feb 25 2021 ...HIGH WIND WARNING WILL EXPIRE AT NOON PST TODAY... The strongest Santa Ana winds occurred earlier today. It will remain breezy in some areas early this afternoon, but the winds will subside through early evening. $$ Moede
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 12:32 PM PST | Small Craft Advisory | SGX | 23 hr |
Nearby
High Wind Warnings in California, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.