Alert archive / California / Wind Advisories in 2020
Wind Advisory 28, NWS Phoenix, AZ
NWS Phoenix, AZ issued this wind advisory at Nov 6, 2020, 1:22 AM PST for Imperial County, Riverside County, San Bernardino County, California. It took effect at Nov 6, 2020, 2:00 PM PST. It was in force for 53 hr.
The area
The counties it named.
The facts
- Issued
- Nov 6, 2020, 1:22 AM PST (09:22 UTC)
- In effect from
- Nov 6, 2020, 2:00 PM PST
- Expired
- Nov 8, 2020, 7:00 PM PST
- In force
- 53 hr
- Issued by
- NWS Phoenix, AZ
Counties Imperial County, CA, Riverside County, CA, San Bernardino County, CA
The radar
The San Diego radar (KNKX), 154 km from the middle of the area, began a volume at 09:22 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, 9.4 hours before the alert went out and 174 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
- 4202 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
620 WWUS75 KPSR 060922 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 222 AM MST Fri Nov 6 2020 CAZ562-062300- /O.NEW.KPSR.WI.Y.0028.201106T2200Z-201109T0300Z/ Imperial County Southwest- 122 AM PST Fri Nov 6 2020 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM PST SUNDAY... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 2 PM this afternoon to 7 PM PST Sunday. * 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. && $$
10 follow-up statements
051 WWUS75 KPSR 061951 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1251 PM MST Fri Nov 6 2020 CAZ562-071200- /O.CON.KPSR.WI.Y.0028.201106T2200Z-201109T0300Z/ Imperial County Southwest- 1151 AM PST Fri Nov 6 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST Sunday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
996 WWUS75 KPSR 070842 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 142 AM MST Sat Nov 7 2020 CAZ562-080315- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 1242 AM PST Sat Nov 7 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST Sunday. * 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. && $$
931 WWUS75 KPSR 071233 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 533 AM MST Sat Nov 7 2020 CAZ566-567-080200- /O.EXB.KPSR.WI.Y.0028.000000T0000Z-201108T0200Z/ Imperial County West-Imperial Valley- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Plaster City, El Centro, Calexico, Alamorio, and Brawley 433 AM PST Sat Nov 7 2020 ...WIND ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING... * WHAT...West winds 25 to 30 mph with gusts up to 45 mph. * WHERE...Western Imperial County and Imperial Valley. * WHEN...Until 6 PM PST this evening. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ CAZ562-080215- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 433 AM PST Sat Nov 7 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...West winds 30 to 40 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST Sunday. * 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. && $$
292 WWUS75 KPSR 071655 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 955 AM MST Sat Nov 7 2020 AZZ553-554-080200- /O.NEW.KPSR.DU.Y.0006.201107T1655Z-201108T0200Z/ Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Florence, and Coolidge 955 AM MST Sat Nov 7 2020 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Northwest Pinal County and West Pinal County. * WHEN...Until 7 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$ CAZ562-081100- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 855 AM PST Sat Nov 7 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST Sunday. * 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. && $$ CAZ566-567-080200- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201108T0200Z/ Imperial County West-Imperial Valley- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Plaster City, El Centro, Calexico, Alamorio, and Brawley 855 AM PST Sat Nov 7 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... * WHAT...West winds 10 to 20 mph with gusts up to 40 mph. * WHERE...Imperial Valley and Western Imperial County. * WHEN...Until 6 PM PST this evening. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
613 WWUS75 KPSR 072020 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 120 PM MST Sat Nov 7 2020 CAZ562-080830- /O.EXA.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 1220 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, west winds 25 to 35 mph with gusts up to 45 mph. * WHERE...Southwest corner of Imperial County. * WHEN...For the Blowing Dust Advisory, until 6 PM PST this evening. For the Wind Advisory, until 7 PM PST Sunday. * 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. 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. && $$ CAZ566-567-080200- /O.EXA.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201108T0200Z/ Imperial County West-Imperial Valley- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, and Brawley 1220 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, west winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Western Imperial County and Imperial Valley. * WHEN...Until 6 PM PST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ CAZ563>565-080200- /O.EXA.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Including the cities of Desert Shores and Imperial Hot Mineral Springs 1220 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY IN EFFECT UNTIL 6 PM PST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Salton Sea, Chuckwalla Mountains and Southeastern Imperial County. * WHEN...Until 6 PM PST 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. && $$ AZZ553-554-080200- /O.CON.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ Northwest Pinal County-West Pinal County- Including the cities of Casa Grande, Florence, and Coolidge 120 PM MST Sat Nov 7 2020 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...Northwest Pinal County and West Pinal County. * WHEN...Until 7 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$
371 WWUS75 KPSR 072114 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 214 PM MST Sat Nov 7 2020 CAZ562-081200- /O.CON.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 114 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, west winds 25 to 35 mph with gusts up to 60 mph. * WHERE...Southwest corner of Imperial County. * WHEN...For the Blowing Dust Advisory, until 6 PM PST this evening. For the Wind Advisory, until 7 PM PST Sunday. * 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. && $$ CAZ566-567-080200- /O.CON.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201108T0200Z/ Imperial County West-Imperial Valley- Including the cities of Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, and Brawley 114 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, west winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Imperial Valley and Western Imperial County. * WHEN...Until 6 PM PST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ AZZ553-554-CAZ563>565-080200- /O.CON.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ Northwest Pinal County-West Pinal County-Salton Sea- Chuckwalla Mountains-Imperial County Southeast- Including the cities of Casa Grande, Florence, Coolidge, Desert Shores, and Imperial Hot Mineral Springs 214 PM MST Sat Nov 7 2020 /114 PM PST Sat Nov 7 2020/ ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST /6 PM PST/ THIS EVENING... * WHAT...Visibility between one quarter mile and one mile in blowing dust. * WHERE...In Arizona, Northwest Pinal County and West Pinal County. In California, Salton Sea, Southeastern Imperial County and Chuckwalla Mountains. * WHEN...Until 7 PM MST /6 PM PST/ 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. && $$ CAZ560-081200- /O.NEW.KPSR.FZ.A.0003.201109T0800Z-201109T1600Z/ Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 114 PM PST Sat Nov 7 2020 ...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING... * WHAT...Temperatures in the lower 30s possible. * WHERE...Western portion of Joshua Tree National Park. * WHEN...From late Sunday night through Monday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
810 WWUS75 KPSR 080119 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 619 PM MST Sat Nov 7 2020 CAZ562-081330- /O.CAN.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 519 PM PST Sat Nov 7 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST SUNDAY... ...BLOWING DUST ADVISORY IS CANCELLED... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST Sunday. * 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. && $$ CAZ566-567-080230- /O.CAN.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ /O.CAN.KPSR.WI.Y.0028.000000T0000Z-201108T0200Z/ Imperial County West-Imperial Valley- 519 PM PST Sat Nov 7 2020 ...BLOWING DUST ADVISORY IS CANCELLED... ...WIND ADVISORY IS CANCELLED... Winds have subsided and blowing dust is no longer a threat. However, breezy conditions will continue through late this evening. $$ AZZ553-554-CAZ563>565-080230- /O.CAN.KPSR.DU.Y.0006.000000T0000Z-201108T0200Z/ Northwest Pinal County-West Pinal County-Salton Sea- Chuckwalla Mountains-Imperial County Southeast- 619 PM MST Sat Nov 7 2020 /519 PM PST Sat Nov 7 2020/ ...BLOWING DUST ADVISORY IS CANCELLED... Winds have subsided and blowing dust is no longer a threat. However, breezy conditions will continue through late this evening. $$ CAZ560-081330- /O.CON.KPSR.FZ.A.0003.201109T0800Z-201109T1600Z/ Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 519 PM PST Sat Nov 7 2020 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY MORNING... * WHAT...Temperatures in the lower 30s possible. * WHERE...Western portion of Joshua Tree National Park. * WHEN...From late Sunday night through Monday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
718 WWUS75 KPSR 080822 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 122 AM MST Sun Nov 8 2020 CAZ560-082230- /O.UPG.KPSR.FZ.A.0003.201109T0800Z-201109T1600Z/ /O.NEW.KPSR.FZ.W.0005.201109T0800Z-201109T1600Z/ /O.EXB.KPSR.WI.Y.0028.201108T1900Z-201109T0100Z/ Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1222 AM PST Sun Nov 8 2020 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 5 PM PST THIS AFTERNOON... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST MONDAY... * WHAT...For the Freeze Warning, temperatures around 30 expected. For the Wind Advisory, west winds 25 to 30 mph with gusts up to 45 mph expected. * WHERE...Western portion of Joshua Tree National Park. * WHEN...For the Wind Advisory, from 11 AM this morning to 5 PM PST this afternoon. For the Freeze Warning, from midnight tonight to 8 AM PST Monday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ563>568-082230- /O.EXB.KPSR.WI.Y.0028.201108T1900Z-201109T0100Z/ Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-Chiriaco Summit- Including the cities of Desert Shores, Imperial Hot Mineral Springs, Coolidge Springs, Salton City, Winona, Coyote Wells, Plaster City, El Centro, Calexico, Alamorio, Brawley, and Chiriaco Summit 1222 AM PST Sun Nov 8 2020 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 5 PM PST THIS AFTERNOON... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Salton Sea, Chuckwalla Mountains, Southeastern Imperial County, Western Imperial County, Imperial Valley and Chiriaco Summit. * WHEN...From 11 AM this morning to 5 PM PST this afternoon. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ CAZ562-082230- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 1222 AM PST Sun Nov 8 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST this evening. * 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. && $$
745 WWUS75 KPSR 082036 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 136 PM MST Sun Nov 8 2020 CAZ560-090845- /O.CON.KPSR.FZ.W.0005.201109T0800Z-201109T1600Z/ /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0100Z/ Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 1236 PM PST Sun Nov 8 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS AFTERNOON... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST MONDAY... * WHAT...For the Freeze Warning, temperatures around 27 to 30 degrees expected. For the Wind Advisory, west winds 20 to 25 mph with gusts up to 45 mph. * WHERE...Western portion of Joshua Tree National Park. * WHEN...For the Freeze Warning, from midnight tonight to 8 AM PST Monday. For the Wind Advisory, until 5 PM PST this afternoon. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ562-090300- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 1236 PM PST Sun Nov 8 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST this evening. * 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. && $$ CAZ563>568-090100- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0100Z/ Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-Chiriaco Summit- Including the cities of Desert Shores, Imperial Hot Mineral Springs, Coolidge Springs, Salton City, Winona, Coyote Wells, Plaster City, El Centro, Calexico, Alamorio, Brawley, and Chiriaco Summit 1236 PM PST Sun Nov 8 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS AFTERNOON... * WHAT...Southwest winds 20 to 25 mph with gusts up to 40 mph. * WHERE...Chiriaco Summit, Salton Sea, Imperial Valley, Western Imperial County, Southeastern Imperial County and Chuckwalla Mountains. * WHEN...Until 5 PM PST this afternoon. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
627 WWUS75 KPSR 090024 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 524 PM MST Sun Nov 8 2020 CAZ560-091230- /O.EXT.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ /O.CON.KPSR.FZ.W.0005.201109T0800Z-201109T1600Z/ Joshua Tree NP West- Including the cities of Cottonwood Visitor and Lost Horse-Keys Village 424 PM PST Sun Nov 8 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS EVENING... ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST MONDAY... * WHAT...For the Freeze Warning, temperatures around 30 expected. For the Wind Advisory, west winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Western portion of Joshua Tree National Park. * WHEN...For the Freeze Warning, from midnight tonight to 8 AM PST Monday. For the Wind Advisory, until 7 PM PST this evening. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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. Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CAZ563>568-090300- /O.EXT.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-Chiriaco Summit- Including the cities of Desert Shores, Imperial Hot Mineral Springs, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, and Chiriaco Summit 424 PM PST Sun Nov 8 2020 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...West winds 15 to 25 mph with gusts up to 40 mph. * WHERE...Chiriaco Summit, Salton Sea, Imperial Valley, Western Imperial County, Southeastern Imperial County and Chuckwalla Mountains. * WHEN...Until 7 PM PST this evening. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$ CAZ562-090300- /O.CON.KPSR.WI.Y.0028.000000T0000Z-201109T0300Z/ Imperial County Southwest- 424 PM PST Sun Nov 8 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 7 PM PST this evening. * 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. && $$
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Phoenix, AZ wrote its last area forecast discussion before this wind advisory went out at Nov 5, 8:45 PM PST, 4 hours 37 minutes earlier.
Area forecast discussion, Nov 5, 8:45 PM PST, 4 hours 37 minutes before
Area Forecast Discussion National Weather Service Phoenix AZ 945 PM MST Thu Nov 5 2020 .UPDATE...06Z aviation discussion. && .SYNOPSIS... Highs will be somewhat cooler Friday, but still well above normal, and there will be considerable high cloudiness as well. A drastic cool down is expected Saturday as a low pressure system moves through the region. It will also bring windy conditions and a chance of rain. Another system will follow closely behind on Sunday bringing a better chance of precipitation. That second system is expected to exit the region by late Monday. Below normal temperatures will continue through much of next week. && .DISCUSSION... As anticipated, PHX broke the daily high temperature record for the date with a high of 98 so far (previous record 93 set in 2007). Turns out, that's also a record for PHX's highest temperature in November. Further west, such as the Lower Colorado River Valley and far southeast California, they haven't been quite as hot (still in the 90s though) due at least in part to having more cirrus. The strong high pressure responsible for the unseasonably warm conditions will be on the way out as a low pressure system (currently centered west of Seattle) dives south-southeastward. Highs will start to trend down Friday but remain above normal. There will also be a good deal of high cloudiness. The biggest change in temperatures will be felt on Saturday as a cold front sweeps through (arriving in southeast California late Friday night). It will drop afternoon temperatures Saturday into the mid 60s to around 70. For some areas, including Phoenix, the calendar day high will probably occur shortly after midnight (Friday night) due to the cold air advection. Moisture with this first system will not be overwhelming. There are model differences on just how much moisture will be available depending upon how much can be stripped off of Tropical Storm Odalys (centered well southwest of the southern tip of Baja). There is already some upper tropospheric moisture from Odalys approaching in addition to the moisture associated with a weak positive tilt trough centered west-southwest of San Diego. Behind the front, there will be a Punch of dry air. But right on the heels of that is a vort lobe and associated QG forcing which will help recover the saturation layers aloft and be a factor in the precip potential. CAPE is looking to be quite modest and confidence in thunderstorms is too low to reflect in the forecast just yet. That vort lobe feature and the trough axis exits AZ late Saturday night. As an aside, Tropical Storm Odalys will drift southwestward and slowly dissipate and otherwise not be much of a factor. Another low within the large scale trough over the West follows right on the heels of the first one. It will initially encounter some dry air in the mid and upper troposphere but lower levels will be cooler and more moist. Also, the cold core digs a bit further south to aid with precipitation efficiency in additional to some modest moist advection that can be tapped into by the main DivQ bullseye (better forcing just north of our area though). For those reasons, it looks like the second system will be a better precip producer than the first one. The timing of precip chances looks to be Saturday night into Monday. There is pretty good model agreement on the trough axis exiting AZ during the day Monday. As is often the case, the best precip potential for our forecast area will be over south-central AZ and in particular the higher terrain. A lot uncertainty remains in the QPF. NBM deterministic/mean guidance looks a bit high for the lower elevations. WPC guidance is lower looks more reasonable. As it stands now, the multiday forecast totals for the lower elevations range from less than 1/10 up to 1/3 of an inch (same for JTNP). Our higher terrain areas will generally range from 1/3 to 1 inch with some areas above 5000 ft in the 1 to 1.5 inch range. Of course, this is all subject to change. December-like highs in the 60s are anticipated Sunday and Monday. Lows on the deserts will stay above freezing due to lingering clouds, humidity. Snow accumulations look to be quite light and limited to areas above 5000 ft. On Tuesday through Thursday, troughing lingers over the Western states keeping temperatures from rebounding. There looks to be only a subtle warming trend with highs in the upper 60s to around 70. Lows will be chilly with readings in the 30s and 40s on the lower deserts. At this time, it appears that follow on systems within in the large scale trough will stay far enough north so that we stay dry. && .AVIATION...Updated at 0445Z. South-Central Arizona including KPHX, KIWA, KSDL, and KDVT: Elevated surface and low level gradients will support generally east winds across the greater Phoenix area overnight tonight and into the morning on Friday. Speeds generally 10kt or less. As we move into the mid morning Friday expect winds to becoming more southeast with potential for some gusts developing; most gusts would be somewhere in the teens. By mid to late afternoon winds will shift more to the south/southwest with continued potential for moderate gusty conditions. As for sky cover, look for considerable increase in mainly high clouds tonight with BKN-OVC decks aoa 20k feet. Decks to gradually lower Friday with SCT-BKN decks dropping to around 15k feet by late morning/early afternoon and closer to 10k feet by late Friday evening. Probably the most significant aviation concern is the potential for LLWS tonight, likely beginning by around 8pm and persisting most of the night through about 10/12Z. Multiple model forecast soundings continue to suggest a very elevated layer of southeast winds up to around 40kt forming in the Phoenix area, down to the 2k foot level. Due to relatively high confidence, have continued the mention of LLWS in the Phoenix area TAFs with the shear to last longest at both KPHX and KIWA. Southeast California/Southwest Arizona including KIPL and KBLH: For tonight into Friday morning, winds should be on the light side across the deserts, with light/variable wind reports common at the TAF sites. That said, winds may tend to favor the west at KIPL and the north/northeast at KBLH. As an upper level trof starts to approach from the west later Friday, winds will increase and become rather gusty at both TAF sites, favoring the southwest with gusts over 20kt likely by 20-21z Friday afternoon. Due to gusty winds there may be patchy blowing dust. As for sky cover, look for considerable mainly high clouds tonight with BKN-OVC decks 20- 25k feet; there will be some lowering of cloud bases during the day Friday but most decks should stay at or above 15k feet into the evening. && .FIRE WEATHER... Sunday through Thursday: The second of two low pressure systems moves through Sunday-Monday bringing a better chance of rain to the forecast area - mainly Sunday night. The system will exit Arizona by late Monday. There is potential for snow over the higher terrain but any accumulations are expected to be light and confined to areas above 5000 ft. Breezy to windy conditions will continue on Sunday followed by much lighter winds thereafter. Minimum humidities during this time frame will be at their highest on Sunday with readings in the 30-40% range for most areas (40-50% higher terrain). There will be a steady decline thereafter with readings reaching the teens by Wednesday. Expect a less dramatic dropoff in Max RH values (remaining in the 40-50% range for most areas). && .CLIMATE... Record highs this week: Date Phoenix Yuma El Centro ---- ------- ---- --------- Nov 5 93 in 2007 97 in 1980 93 in 2012 Nov 6 94 in 2007 96 in 1988 96 in 1988 && .SPOTTER INFORMATION STATEMENT... Spotters should follow standard reporting procedures. && .PSR WATCHES/WARNINGS/ADVISORIES... AZ...None. CA...None. && DISCUSSION...AJ AVIATION...Feldkircher/CB FIRE WEATHER...AJ CLIMATE...MO
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Wind Advisories in California, 2020Every wind advisory in 2020
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.