Alert archive / California / Wind Advisories in 2017
Wind Advisory 28, NWS San Diego, CA
NWS San Diego, CA issued this wind advisory at Sep 20, 2017, 1:41 PM PDT for Riverside County, San Bernardino County, San Diego County, California. It took effect at Sep 21, 2017, 11:00 AM PDT. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2017, 1:41 PM PDT (20:41 UTC)
- In effect from
- Sep 21, 2017, 11:00 AM PDT
- Expired
- Sep 22, 2017, 1:00 AM PDT
- In force
- 14 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 20:42 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, 8.7 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
- 1 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 766 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
946 WWUS76 KSGX 202041 NPWSGX URGENT - WEATHER MESSAGE National Weather Service San Diego CA 141 PM PDT Wed Sep 20 2017 ...Increasing West to Southwest Winds Across the Mountains and Deserts Thursday into Thursday Night... .A deepening trough will bring increasing West-Southwest winds to the mountain peaks to the desert floor Thursday into Thursday night. CAZ055-056-058-060>062-065-211300- /O.NEW.KSGX.WI.Y.0028.170921T1800Z-170922T0800Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- Coachella Valley-San Diego County Deserts- San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Victorville, Hesperia, Apple Valley, Indio, La Quinta, Coachella, Borrego Springs, and Desert Hot Springs 141 PM PDT Wed Sep 20 2017 ...WIND ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 1 AM PDT FRIDAY... The National Weather Service in San Diego has issued a Wind Advisory...which is in effect from 11 AM Thursday to 1 AM PDT Friday. * Winds...West to Southwest 20 to 30 mph with gusts of 40 to 50 mph. * Timing...Thursday afternoon into Thursday night. * Location...Mountain tops to the desert floor. Windiest along the desert mountain slopes and through passes. * Visibility...Patchy blowing dust could lead to visibility restrictions to briefly a half mile or less across portions of the deserts. * Impacts...Difficult travel for high profile vehichles and potential for sudden reductions in visibility. * Outlook...Winds will gradually diminish early Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds can make driving difficult...especially for high profile vehicles. Blowing dust in the deserts can lead to restrictions in visibility. Drive with extra caution. && $$ Gregoria
3 follow-up statements
536 WWUS76 KSGX 210922 NPWSGX URGENT - WEATHER MESSAGE National Weather Service San Diego CA 222 AM PDT Thu Sep 21 2017 ...Strong winds in parts of the mountains and deserts today and tonight... .A deep trough of low pressure will bring strong winds to parts of the mountains and deserts through tonight. Winds will decrease overnight into Friday. CAZ055-056-058-060>062-065-211900- /O.CON.KSGX.WI.Y.0028.170921T1800Z-170922T0800Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- Coachella Valley-San Diego County Deserts- San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Victorville, Hesperia, Apple Valley, Indio, La Quinta, Coachella, Borrego Springs, and Desert Hot Springs 222 AM PDT Thu Sep 21 2017 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 1 AM PDT FRIDAY... * Winds...West to southwest 20 to 30 mph with gusts of 40 to 50 mph. * Timing...Today and tonight. * Location...Strongest winds will be on the mountain crests, through mountain passes, and into adjacent deserts. * Visibility...Blowing dust could lead to greatly reduced visibility across parts of the desert. * Impacts...Difficult travel for high profile vehicles and potential for sudden reductions in visibility. * Outlook...Winds will diminish early Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds can make driving difficult...especially for high profile vehicles. Blowing dust in the deserts can lead to restrictions in visibility. Drive with extra caution. && $$
378 WWUS76 KSGX 211828 NPWSGX URGENT - WEATHER MESSAGE National Weather Service San Diego CA 1128 AM PDT Thu Sep 21 2017 ...Strong winds in parts of the mountains and deserts this afternoon and tonight... .A deep trough of low pressure will bring strong winds to parts of the mountains and deserts through tonight. Winds will decrease overnight into Friday. CAZ055-056-058-060>062-065-220800- /O.CON.KSGX.WI.Y.0028.000000T0000Z-170922T0800Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- Coachella Valley-San Diego County Deserts- San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Victorville, Hesperia, Apple Valley, Indio, La Quinta, Coachella, Borrego Springs, and Desert Hot Springs 1128 AM PDT Thu Sep 21 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM PDT FRIDAY... * Winds...West to southwest 20 to 30 mph with gusts of 40 to 50 mph. * Timing...Through 1 AM Friday. * Location...Strongest winds will be on the mountain crests, through mountain passes, and into adjacent deserts. * Visibility...Blowing dust could lead to greatly reduced visibility across parts of the desert. * Impacts...Difficult travel for high profile vehicles and potential for sudden reductions in visibility. * Outlook...Winds will diminish early Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Strong winds can make driving difficult...especially for high profile vehicles. Blowing dust in the deserts can lead to restrictions in visibility. Drive with extra caution. && $$ Gregoria
056 WWUS76 KSGX 220753 NPWSGX URGENT - WEATHER MESSAGE National Weather Service San Diego CA 1253 AM PDT Fri Sep 22 2017 CAZ055-056-058-060>062-065-220900- /O.EXP.KSGX.WI.Y.0028.000000T0000Z-170922T0800Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains-Apple and Lucerne Valleys- Coachella Valley-San Diego County Deserts- San Gorgonio Pass Near Banning- Including the cities of Big Bear City, Julian, Victorville, Hesperia, Apple Valley, Indio, La Quinta, Coachella, Borrego Springs, and Desert Hot Springs 1253 AM PDT Fri Sep 22 2017 ...WIND ADVISORY WILL EXPIRE AT 1 AM PDT EARLY THIS MORNING... Peak Wind gusts for Thursday in MPH.... Volcan Mountain SDGE 56 4 PM PDT Mountain Springs Grade 56 12 AM PDT White Water West RAWS 55 12 PM PDT White Water/Desert Hot Spgs 47 8 AM PDT Boucher Hill 46 1 PM PDT Harrison Park SDGE 46 3 PM PDT Heaps Peak 45 1 PM PDT Thermal Airport 43 4 PM PDT $$ JAD
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 1:35 PM PDT | Small Craft Advisory | SGX | 59 hr |
Nearby
Wind Advisories in California, 2017Every wind advisory in 2017
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.