Alert archive / California / Wind Advisories in 2021
Wind Advisory 44, NWS San Diego, CA
NWS San Diego, CA issued this wind advisory at Dec 31, 2021, 3:29 AM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Dec 31, 2021, 2:00 PM PST. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Dec 31, 2021, 3:29 AM PST (11:29 UTC)
- In effect from
- Dec 31, 2021, 2:00 PM PST
- Expired
- Jan 1, 2022, 3:00 AM PST
- In force
- 13 hr
- 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 11:33 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, 11.5 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
- 12 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
489 WWUS76 KSGX 311129 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 329 AM PST Fri Dec 31 2021 CAZ048-312300- /O.NEW.KSGX.FR.Y.0009.220101T1200Z-220101T1600Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the city of San Bernardino 329 AM PST Fri Dec 31 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM PST SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 4 AM to 8 AM PST Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...For lower-lying wind-sheltered more inland portions to the Inland Empire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ055-056-058-060-062-065-312300- /O.NEW.KSGX.WI.Y.0044.211231T2200Z-220101T1100Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Diego County Deserts-San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Pine Valley, Apple Valley, Borrego Springs, and Desert Hot Springs 329 AM PST Fri Dec 31 2021 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 3 AM PST SATURDAY... * WHAT...West winds 25 to 35 mph with gusts to 65 mph expected. * WHERE...San Bernardino County Mountains, Riverside County Mountains, San Diego County Mountains, Apple and Lucerne Valleys, San Diego County Deserts and San Gorgonio Pass Near Banning. * WHEN...From 2 PM this afternoon to 3 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. There will be reduced visibility at times in the deserts from areas of blowing dust. * ADDITIONAL DETAILS...Strongest winds along desert slopes of the mountains into adjacent desert areas in the northern Coachella Valley below the San Gorgonio Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego 17
3 follow-up statements
159 WWUS76 KSGX 312134 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 134 PM PST Fri Dec 31 2021 CAZ048-010600- /O.CON.KSGX.FR.Y.0009.220101T1200Z-220101T1600Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the city of San Bernardino 134 PM PST Fri Dec 31 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM PST SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 4 AM to 8 AM PST Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...For lower-lying wind-sheltered more inland portions to the Inland Empire. Frost will be likely and possibly more widespread on Sunday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ055-056-058-060-062-065-010600- /O.CON.KSGX.WI.Y.0044.211231T2200Z-220101T1100Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Diego County Deserts-San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Pine Valley, Apple Valley, Borrego Springs, and Desert Hot Springs 134 PM PST Fri Dec 31 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY... * WHAT...West winds 25 to 35 mph with gusts to 65 mph expected. * WHERE...San Bernardino County Mountains, Riverside County Mountains, San Diego County Mountains, Apple and Lucerne Valleys, San Diego County Deserts and San Gorgonio Pass Near Banning. * WHEN...From 2 PM this afternoon to 3 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. There will be reduced visibility at times in the deserts from areas of blowing dust. * ADDITIONAL DETAILS...Strongest winds along desert slopes of the mountains into adjacent desert areas in the northern Coachella Valley below the San Gorgonio Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego
307 WWUS76 KSGX 010501 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 901 PM PST Fri Dec 31 2021 CAZ048-011400- /O.CON.KSGX.FR.Y.0009.220101T1200Z-220101T1600Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the city of San Bernardino 901 PM PST Fri Dec 31 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM PST SATURDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 4 AM to 8 AM PST Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...For lower-lying wind-sheltered more inland portions to the Inland Empire. Frost will be likely and possibly more widespread on Sunday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ055-056-058-060-062-065-011100- /O.CON.KSGX.WI.Y.0044.000000T0000Z-220101T1100Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Diego County Deserts-San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Pine Valley, Apple Valley, Borrego Springs, and Desert Hot Springs 901 PM PST Fri Dec 31 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY... * WHAT...West winds 25 to 35 mph with gusts to 60 mph expected. * WHERE...San Bernardino County Mountains, Riverside County Mountains, San Diego County Mountains, Apple and Lucerne Valleys, San Diego County Deserts and San Gorgonio Pass Near Banning. * WHEN...Until 3 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. There will be reduced visibility at times in the deserts from areas of blowing dust. * ADDITIONAL DETAILS...Strongest winds along desert slopes of the mountains into adjacent desert areas in the northern Coachella Valley below the San Gorgonio Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ jmb For more information from the National Weather Service visit http://weather.gov/sandiego
609 WWUS76 KSGX 011120 NPWSGX URGENT - WEATHER MESSAGE National Weather Service SAN DIEGO CA 320 AM PST Sat Jan 1 2022 CAZ062-020000- /O.EXP.KSGX.WI.Y.0044.000000T0000Z-220101T1100Z/ /O.NEW.KSGX.FR.Y.0001.220102T0800Z-220102T1700Z/ San Diego County Deserts- Including the city of Borrego Springs 320 AM PST Sat Jan 1 2022 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SUNDAY... ...WIND ADVISORY HAS EXPIRED... * WHAT...Temperatures are expected to drop to 33 to 36 degrees late tonight and Sunday morning. * WHERE...San Diego County Deserts. * WHEN...From midnight tonight to 9 AM PST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Frost is most likely at lower-lying wind- sheltered locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ055-056-058-060-065-011230- /O.EXP.KSGX.WI.Y.0044.000000T0000Z-220101T1100Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Pine Valley, Apple Valley, and Desert Hot Springs 320 AM PST Sat Jan 1 2022 ...WIND ADVISORY HAS EXPIRED... Winds have dropped below Advisory criteria. Gusty westerly winds will continue until sunrise with gusts of 30 to 40 mph possible in isolated spots. Weak to moderate northeast Santa Ana winds will develop this morning with gusts of 30 to 40 mph expected near Cajon Pass. $$ CAZ048-020000- /O.NEW.KSGX.FR.Y.0001.220102T0800Z-220102T1700Z/ /O.CON.KSGX.FR.Y.0009.220101T1200Z-220101T1600Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, and Corona 320 AM PST Sat Jan 1 2022 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING... ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SUNDAY... * WHAT...Temperatures of 33 to 36 degrees are expected early this morning and again late tonight through mid morning Sunday. Temperatures may drop as low as 30 to 32 degrees in the coldest wind- sheltered locations. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 AM PST this morning, then again from midnight tonight to 9 AM PST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Temperatures could drop below freezing in a few of the lower-lying wind-sheltered locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ CAZ050-061-020000- /O.NEW.KSGX.FR.Y.0001.220102T0800Z-220102T1700Z/ San Diego County Valleys-Coachella Valley- Including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, Poway, Indio, Palm Springs, Cathedral City, Palm Desert, Palm Desert Country, La Quinta, and Coachella 320 AM PST Sat Jan 1 2022 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST SUNDAY... * WHAT...Temperatures of 33 to 36 degrees are expected late tonight through mid morning Sunday. Temperatures may drop as low as 30 to 32 degrees in the coldest wind-sheltered locations. * WHERE...San Diego County Valleys and Coachella Valley. * WHEN...From midnight tonight to 9 AM PST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...Temperatures could drop below freezing in a few of the lower-lying wind-sheltered locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit http://weather.gov/sandiego
Nearby
Wind Advisories in California, 2021Every wind advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.