Alert archive / California / Wind Advisories in 2021
Wind Advisory 18, NWS Phoenix, AZ
NWS Phoenix, AZ issued this wind advisory at Apr 20, 2021, 1:31 AM PDT for Imperial County, California. It took effect at Apr 20, 2021, 5:00 PM PDT. It was in force for 36 hr.
The area
The counties it named.
The facts
- Issued
- Apr 20, 2021, 1:31 AM PDT (08:31 UTC)
- In effect from
- Apr 20, 2021, 5:00 PM PDT
- Expired
- Apr 22, 2021, 5:00 AM PDT
- In force
- 36 hr
- Issued by
- NWS Phoenix, AZ
County Imperial County, CA
The radar
The Yuma radar (KYUX), 90 km from the middle of the area, began a volume at 08:33 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, 8.5 hours before the alert went out and 173 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
- 3845 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
660 WWUS75 KPSR 200831 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 131 AM MST Tue Apr 20 2021 CAZ562-202200- /O.NEW.KPSR.WI.Y.0018.210421T0000Z-210422T1200Z/ Imperial County Southwest- 131 AM PDT Tue Apr 20 2021 ...WIND ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT THURSDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 5 PM this afternoon to 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
7 follow-up statements
476 WWUS75 KPSR 202016 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 116 PM MST Tue Apr 20 2021 CAZ562-211200- /O.CON.KPSR.WI.Y.0018.210421T0000Z-210422T1200Z/ Imperial County Southwest- 116 PM PDT Tue Apr 20 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM PDT THURSDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 45 mph expected. Isolated stronger gusts up to 55 mph cannot be ruled out. * WHERE...Southwest corner of Imperial County. * WHEN...From 5 PM this afternoon to 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
516 WWUS75 KPSR 210847 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 147 AM MST Wed Apr 21 2021 CAZ562-220000- /O.CON.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 147 AM PDT Wed Apr 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
564 WWUS75 KPSR 211714 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1014 AM MST Wed Apr 21 2021 AZZ539-553>555-559-220300- /O.NEW.KPSR.DU.Y.0006.210421T1714Z-210422T0300Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, and Kaka 1014 AM MST Wed Apr 21 2021 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Gila Bend, Northwest Pinal County, West Pinal County, Apache Junction/Gold Canyon and Sonoran Desert National Monument. * WHEN...Until 8 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$ CAZ562-220515- /O.CON.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 1014 AM PDT Wed Apr 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 50 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
186 WWUS75 KPSR 212032 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 132 PM MST Wed Apr 21 2021 AZZ539-553>555-559-220300- /O.CON.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, and Kaka 132 PM MST Wed Apr 21 2021 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Northwest Pinal County, Apache Junction/Gold Canyon, West Pinal County, Sonoran Desert National Monument and Gila Bend. Blowing dust so far has been most prevalent near Gila Bend and throughout much of Pinal County. * WHEN...Until 8 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$ CAZ562-221200- /O.CON.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 132 PM PDT Wed Apr 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
557 WWUS75 KPSR 212331 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 431 PM MST Wed Apr 21 2021 CAZ562-221145- /O.EXA.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ /O.CON.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 431 PM PDT Wed Apr 21 2021 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, southwest winds 35 to 45 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...For the Blowing Dust Advisory, until 8 PM PDT this evening. For the Wind Advisory, until 5 AM PDT Thursday. * IMPACTS...Hazardous driving conditions due to reduced visibility. Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ CAZ563-565>567-220300- /O.EXA.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ Salton Sea-Imperial County Southeast-Imperial County West- Imperial Valley- Including the cities of Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, and Brawley 431 PM PDT Wed Apr 21 2021 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Salton Sea, Southeastern Imperial County, Western Imperial County and Imperial Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$ AZZ539-553>555-559-220300- /O.CON.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, and Kaka 431 PM MST Wed Apr 21 2021 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust with wind gusts up to 40 to 45 mph. * WHERE...Northwest Pinal County, Apache Junction/Gold Canyon, West Pinal County, Gila Bend and Sonoran Desert National Monument. * WHEN...Until 8 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$
175 WWUS75 KPSR 220305 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 805 PM MST Wed Apr 21 2021 CAZ562-221200- /O.EXP.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ /O.CON.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 805 PM PDT Wed Apr 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... ...BLOWING DUST ADVISORY HAS EXPIRED... * WHAT...Southwest winds 30 to 40 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Thursday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities at times. && $$ AZZ539-553>555-559-CAZ563-565>567-220415- /O.EXP.KPSR.DU.Y.0006.000000T0000Z-210422T0300Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Salton Sea-Imperial County Southeast-Imperial County West- Imperial Valley- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, Kaka, Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, and Brawley 805 PM MST Wed Apr 21 2021 /805 PM PDT Wed Apr 21 2021/ ...BLOWING DUST ADVISORY HAS EXPIRED... Winds have started to weaken and visibilities have improved. Thus the Blowing Dust Advisory for Imperial County has been allowed to expire. However, windy conditions will continue this evening and it is possible that localized spots may see brief visibility reductions. $$
289 WWUS75 KPSR 221149 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 449 AM MST Thu Apr 22 2021 CAZ562-221300- /O.EXP.KPSR.WI.Y.0018.000000T0000Z-210422T1200Z/ Imperial County Southwest- 449 AM PDT Thu Apr 22 2021 ...WIND ADVISORY WILL EXPIRE AT 5 AM PDT EARLY THIS MORNING... $$
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.