Alert archive / California / Wind Advisories in 2020
Wind Advisory 25, NWS Phoenix, AZ
NWS Phoenix, AZ issued this wind advisory at Sep 6, 2020, 2:44 PM PDT for Imperial County, Riverside County, San Bernardino County, California; La Paz County, Yuma County, Arizona. It took effect at Sep 8, 2020, 11:00 AM PDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Sep 6, 2020, 2:44 PM PDT (21:44 UTC)
- In effect from
- Sep 8, 2020, 11:00 AM PDT
- Expired
- Sep 8, 2020, 10:00 PM PDT
- In force
- 11 hr
- Issued by
- NWS Phoenix, AZ
Counties La Paz County, AZ, Yuma County, AZ, Imperial County, CA, Riverside County, CA, San Bernardino County, CA
The radar
The Yuma radar (KYUX), 132 km from the middle of the area, began a volume at 21:48 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, 9.7 hours before the alert went out and 217 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
- 4469 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
870 WWUS75 KPSR 062144 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 244 PM MST Sun Sep 6 2020 AZZ530-CAZ560-561-564-565-568>570-071200- /O.NEW.KPSR.WI.Y.0025.200908T1800Z-200909T0500Z/ /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Parker Valley-Joshua Tree NP West-Joshua Tree NP East- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Palo Verde Valley-Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 244 PM MST Sun Sep 6 2020 /244 PM PDT Sun Sep 6 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ MONDAY... ...WIND ADVISORY IN EFFECT FROM 11 AM MST /11 AM PDT/ TO 10 PM MST /10 PM PDT/ TUESDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 109 to 120. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...For the Excessive Heat Warning, until 8 PM MST /8 PM PDT/ Monday. For the Wind Advisory, from 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. 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. An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ531>533-535-536-CAZ562-563-566-567-071200- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Kofa-Yuma-Central La Paz-Southeast Yuma County-Gila River Valley- Imperial County Southwest-Salton Sea-Imperial County West- Imperial Valley- Including the cities of Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Ligurta, Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, and Brawley 244 PM MST Sun Sep 6 2020 /244 PM PDT Sun Sep 6 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ MONDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 111 to 119. * WHERE...In Arizona, Southeast Yuma County, Gila River Valley, Kofa, Central La Paz County and Yuma. In California, Salton Sea, Southwest corner of Imperial County, Imperial Valley and Western Imperial County. * WHEN...Until 8 PM MST /8 PM PDT/ Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ534-537>556-559>562-071200- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Aguila Valley-Northwest Valley-Tonopah Desert-Gila Bend- Buckeye/Avondale-Cave Creek/New River-Deer Valley-Central Phoenix- North Phoenix/Glendale-New River Mesa-Scottsdale/Paradise Valley- Rio Verde/Salt River-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek-Superior- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Tonto Basin- Sonoran Desert Natl Monument-San Carlos-Dripping Springs- Globe/Miami- Including the cities of Aguila, Gladden, Wickenburg, Circle City, Surprise, Wittmann, Beardsley, Sun City West, Arlington, Hassayampa, Tonopah, Wintersburg, Gila Bend, Sentinel, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Tortilla Flat, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Superior, Casa Grande, Florence, Coolidge, Apache Junction, Punkin Center, Kaka, San Carlos, Hayden, Winkelman, Globe, and Miami 244 PM MST Sun Sep 6 2020 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST MONDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 115. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
6 follow-up statements
664 WWUS75 KPSR 070833 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 133 AM MST Mon Sep 7 2020 AZZ530-CAZ560-561-564-565-568>570-072200- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ /O.CON.KPSR.WI.Y.0025.200908T1800Z-200909T0500Z/ Parker Valley-Joshua Tree NP West-Joshua Tree NP East- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Palo Verde Valley-Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 133 AM MST Mon Sep 7 2020 /133 AM PDT Mon Sep 7 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM MST /11 AM PDT/ TO 10 PM MST /10 PM PDT/ TUESDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 109 to 120. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...For the Excessive Heat Warning, until 8 PM MST /8 PM PDT/ Monday. For the Wind Advisory, from 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. 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. An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ531>533-536-072200- /O.EXA.KPSR.WI.Y.0025.200908T1800Z-200909T0500Z/ /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Kofa-Yuma-Central La Paz-Gila River Valley- Including the cities of Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, and Ligurta 133 AM MST Mon Sep 7 2020 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... ...WIND ADVISORY IN EFFECT FROM 11 AM TO 10 PM MST TUESDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 109 to 120. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Kofa, Yuma, Central La Paz County and Gila River Valley. * WHEN...For the Excessive Heat Warning, until 8 PM MST /8 PM PDT/ Monday. For the Wind Advisory, from 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. 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. An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ535-CAZ562-563-566-567-072200- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Southeast Yuma County-Imperial County Southwest-Salton Sea- 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 133 AM MST Mon Sep 7 2020 /133 AM PDT Mon Sep 7 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 111 to 119. * WHERE...In Arizona, Southeast Yuma County, Gila River Valley, Kofa, Central La Paz County and Yuma. In California, Salton Sea, Southwest corner of Imperial County, Imperial Valley and Western Imperial County. * WHEN...Until 8 PM MST /8 PM PDT/ Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ534-537>556-559>562-072200- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Aguila Valley-Northwest Valley-Tonopah Desert-Gila Bend- Buckeye/Avondale-Cave Creek/New River-Deer Valley-Central Phoenix- North Phoenix/Glendale-New River Mesa-Scottsdale/Paradise Valley- Rio Verde/Salt River-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek-Superior- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Tonto Basin- Sonoran Desert Natl Monument-San Carlos-Dripping Springs- Globe/Miami- Including the cities of Aguila, Gladden, Wickenburg, Circle City, Surprise, Wittmann, Beardsley, Sun City West, Arlington, Hassayampa, Tonopah, Wintersburg, Gila Bend, Sentinel, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Tortilla Flat, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Superior, Casa Grande, Florence, Coolidge, Apache Junction, Punkin Center, Kaka, San Carlos, Hayden, Winkelman, Globe, and Miami 133 AM MST Mon Sep 7 2020 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 115. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
133 WWUS75 KPSR 072031 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 131 PM MST Mon Sep 7 2020 AZZ530>533-536-CAZ560-561-564-565-568>570-081215- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ /O.CON.KPSR.WI.Y.0025.200908T1800Z-200909T0500Z/ Parker Valley-Kofa-Yuma-Central La Paz-Gila River Valley- Joshua Tree NP West-Joshua Tree NP East-Chuckwalla Mountains- Imperial County Southeast-Chiriaco Summit-Palo Verde Valley- Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Ligurta, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 131 PM MST Mon Sep 7 2020 /131 PM PDT Mon Sep 7 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM MST /11 AM PDT/ TO 10 PM MST /10 PM PDT/ TUESDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 109 to 120. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...For the Excessive Heat Warning, until 8 PM MST /8 PM PDT/ Monday. For the Wind Advisory, from 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. 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. An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ535-CAZ562-563-566-567-080300- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Southeast Yuma County-Imperial County Southwest-Salton Sea- 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 131 PM MST Mon Sep 7 2020 /131 PM PDT Mon Sep 7 2020/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 111 to 119. * WHERE...In Arizona, Southeast Yuma County, Gila River Valley, Kofa, Central La Paz County and Yuma. In California, Salton Sea, Southwest corner of Imperial County, Imperial Valley and Western Imperial County. * WHEN...Until 8 PM MST /8 PM PDT/ Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$ AZZ534-537>556-559>562-080300- /O.CON.KPSR.EH.W.0014.000000T0000Z-200908T0300Z/ Aguila Valley-Northwest Valley-Tonopah Desert-Gila Bend- Buckeye/Avondale-Cave Creek/New River-Deer Valley-Central Phoenix- North Phoenix/Glendale-New River Mesa-Scottsdale/Paradise Valley- Rio Verde/Salt River-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek-Superior- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Tonto Basin- Sonoran Desert Natl Monument-San Carlos-Dripping Springs- Globe/Miami- Including the cities of Aguila, Gladden, Wickenburg, Circle City, Surprise, Wittmann, Beardsley, Sun City West, Arlington, Hassayampa, Tonopah, Wintersburg, Gila Bend, Sentinel, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Tortilla Flat, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Superior, Casa Grande, Florence, Coolidge, Apache Junction, Punkin Center, Kaka, San Carlos, Hayden, Winkelman, Globe, and Miami 131 PM MST Mon Sep 7 2020 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 115. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST Monday. * IMPACTS...Very High Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Stay indoors and seek air-conditioned buildings. Drink water, more than usual, and avoid dehydrating alcoholic, sugary, or caffeinated drinks. Dress for the heat - lightweight and light- colored clothing. Eat small meals and eat more often. Monitor those with a higher vulnerability to heat, including small children. Check in on family, friends, and neighbors, especially the elderly. If engaging in outdoor activity, take longer and more frequent breaks and avoid the hottest parts of the day. Never leave kids or pets unattended in cars. Public cooling shelters are available in some areas. Consult county officials for more details, which may include guidance for proper social distancing measures. Recognize the signs and symptoms of heat-related illness. Early signs include thirst and muscle cramps. Heat exhaustion may include: cool, moist, pale skin; headache; dizziness; weakness or exhaustion; nausea. The most serious illness is heat stroke, which may include: vomiting; confusion; throbbing headache; decreased alertness or loss of consciousness; high body temperature (above 105F); hot, dry skin; rapid, weak pulse; rapid, shallow breathing; seizures. Heat stroke can be DEADLY. Treat as an emergency and call 9 1 1. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
480 WWUS75 KPSR 080910 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 210 AM MST Tue Sep 8 2020 AZZ530>533-536-CAZ560-561-564-565-568>570-082230- /O.CON.KPSR.WI.Y.0025.200908T1800Z-200909T0500Z/ Parker Valley-Kofa-Yuma-Central La Paz-Gila River Valley- Joshua Tree NP West-Joshua Tree NP East-Chuckwalla Mountains- Imperial County Southeast-Chiriaco Summit-Palo Verde Valley- Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Ligurta, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 210 AM MST Tue Sep 8 2020 /210 AM PDT Tue Sep 8 2020/ ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM MST /11 AM PDT/ THIS MORNING TO 10 PM MST /10 PM PDT/ THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...From 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds on Interstates 8 and 10. 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. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
118 WWUS75 KPSR 081858 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1158 AM MST Tue Sep 8 2020 AZZ530-533-CAZ569-570-090500- /O.NEW.KPSR.DU.Y.0003.200908T1858Z-200908T2300Z/ /O.CON.KPSR.WI.Y.0025.000000T0000Z-200909T0500Z/ Parker Valley-Central La Paz-Palo Verde Valley-Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 1158 AM MST Tue Sep 8 2020 /1158 AM PDT Tue Sep 8 2020/ ...BLOWING DUST ADVISORY IN EFFECT UNTIL 4 PM MST /4 PM PDT/ THIS AFTERNOON... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM MST /10 PM PDT/ THIS EVENING... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Arizona, Parker Valley and Central La Paz County. In California, Palo Verde Valley and Chuckwalla Valley. * WHEN...For the Blowing Dust Advisory, until 4 PM MST /4 PM PDT/ this afternoon. For the Wind Advisory, until 10 PM MST /10 PM PDT/ 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. && $$ AZZ531-532-536-CAZ560-561-564-565-568-090500- /O.CON.KPSR.WI.Y.0025.000000T0000Z-200909T0500Z/ Kofa-Yuma-Gila River Valley-Joshua Tree NP West- Joshua Tree NP East-Chuckwalla Mountains- Imperial County Southeast-Chiriaco Summit- Including the cities of Palm Canyon, Yuma, Fortuna Foothills, Ligurta, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, and Chiriaco Summit 1158 AM MST Tue Sep 8 2020 /1158 AM PDT Tue Sep 8 2020/ ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM MST /10 PM PDT/ THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...From 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds on Interstates 8 and 10. 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. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
445 WWUS75 KPSR 082022 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 122 PM MST Tue Sep 8 2020 AZZ530-533-CAZ569-570-090500- /O.CON.KPSR.DU.Y.0003.000000T0000Z-200908T2300Z/ /O.CON.KPSR.WI.Y.0025.000000T0000Z-200909T0500Z/ Parker Valley-Central La Paz-Palo Verde Valley-Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 122 PM MST Tue Sep 8 2020 /122 PM PDT Tue Sep 8 2020/ ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 4 PM MST /4 PM PDT/ THIS AFTERNOON... ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM MST /10 PM PDT/ THIS EVENING... * WHAT...For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 55 mph. * WHERE...In Arizona, Parker Valley and Central La Paz County. In California, Palo Verde Valley and Chuckwalla Valley. * WHEN...For the Blowing Dust Advisory, until 4 PM MST /4 PM PDT/ this afternoon. For the Wind Advisory, until 10 PM MST /10 PM PDT/ 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. && $$ AZZ531-532-536-CAZ560-561-564-565-568-090500- /O.CON.KPSR.WI.Y.0025.000000T0000Z-200909T0500Z/ Kofa-Yuma-Gila River Valley-Joshua Tree NP West- Joshua Tree NP East-Chuckwalla Mountains- Imperial County Southeast-Chiriaco Summit- Including the cities of Palm Canyon, Yuma, Fortuna Foothills, Ligurta, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, and Chiriaco Summit 122 PM MST Tue Sep 8 2020 /122 PM PDT Tue Sep 8 2020/ ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM MST /10 PM PDT/ THIS EVENING... * WHAT...North winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...In Arizona, Parker Valley. In California, Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, Chuckwalla Mountains, Southeastern Imperial County, Chiriaco Summit, Palo Verde Valley and Chuckwalla Valley. * WHEN...From 11 AM MST /11 AM PDT/ to 10 PM MST /10 PM PDT/ Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds on Interstates 8 and 10. 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. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates. && $$
434 WWUS75 KPSR 090451 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 951 PM MST Tue Sep 8 2020 AZZ530>533-536-CAZ560-561-564-565-568>570-090600- /O.EXP.KPSR.WI.Y.0025.000000T0000Z-200909T0500Z/ Parker Valley-Kofa-Yuma-Central La Paz-Gila River Valley- Joshua Tree NP West-Joshua Tree NP East-Chuckwalla Mountains- Imperial County Southeast-Chiriaco Summit-Palo Verde Valley- Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Ligurta, Cottonwood Visitor, Lost Horse-Keys Village, Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 951 PM MST Tue Sep 8 2020 /951 PM PDT Tue Sep 8 2020/ ...WIND ADVISORY WILL EXPIRE AT 10 PM MST /10 PM PDT/ THIS EVENING... Wind speeds have diminished below advisory levels across the region...and will continue to do so through the rest of the night. $$
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 Sep 6, 11:00 AM PDT, 3 hours 44 minutes earlier.
Area forecast discussion, Sep 6, 11:00 AM PDT, 3 hours 44 minutes before
Area Forecast Discussion
National Weather Service Phoenix AZ
1100 AM MST Sun Sep 6 2020
.UPDATE...Updated Aviation Discussion.
&&
.SYNOPSIS...
Strong high pressure and mostly dry conditions remain over the
region with little to no thunderstorm chances through at least
early next week. Excessive heat with well above normal as high
temperatures will challenge record territory through Labor Day. A
pattern shift will include a strong storm system dropping out of
Canada that will bring much cooler temperatures, breezy
conditions, and a slight chance of rain mainly to the high terrain
east of Phoenix by the middle of the week.
&&
.DISCUSSION...
Very hot temperatures continue for at least two more days across
the Southwest in the presence of an exceptionally strong upper
high. Several records were shattered on Saturday, with parts of
southeast California and the lower Colorado River Valley exceeding
120 degrees. Slightly cooler temperatures, if you can call it
that, are expected on Sunday, but are still well above normal.
High should generally range between 110-115 are expected across
southwest and south-central Arizona, with some spots approaching
117 degrees over southeast California. The dry air mass in place
will not be favorable for any thunderstorms to develop this
afternoon, even across southern Gila County. The upper ridge will
begin weakening this afternoon into Monday, but will maintain hot
temperatures again into Monday. The Excessive Heat Warning remains
in effect through Monday.
The well-advertised pattern change early in the week is still on
track, featuring a potent shortwave trough and associated cold
front moving across the Pacific Northwest. The latter feature will
move through the region on Tuesday. Very strong north winds aloft
are forecast to develop in the wake of the front, with forecast
models consistently showing 30-40 kt at 850 mb along the lower
Colorado River Valley. With deep post-frontal mixing a safe bet,
the combination of low RH and strong north winds may lead to
critical fire weather concerns along the Colorado River and into
southeast California and southwest Arizona on Tuesday afternoon
and evening. Wind gusts over 40 mph are possible here. Winds
should be slightly weaker across south-central Arizona, but still
some signal in breezy conditions developing during the evening,
especially across higher terrain ridgetops. The exact pattern
evolution is still somewhat uncertain as one cluster of model
members attempts to develop a closed low from the shortwave trough
across the Southwest. Still not buying this solution completely
yet, but if it did occur cooler temperatures and perhaps a
slightly higher chance of rainfall may occur. For now, the most
likely solution remains a progressive open wave, which may trigger
isolated showers and thunderstorms across southern Gila County on
Tuesday afternoon and evening. The dry air mass will generally
preclude precipitation elsewhere, though the northern and eastern
fringes of the Phoenix area could potentially see a stray shower.
Cooler temperatures will be more noticeable Wednesday and
Thursday, with most south-central Arizona locations topping out
below 100 degrees each day. This will lead to a break in excessive
heat conditions. An upper ridge will quickly build across the
Southwest later in the week, but luckily model guidance has held
steady in keeping this feature weaker than what we've seen for
most of the summer with 500-mb heights around 591-592 dm.
Temperatures will warm back up above 100 degrees for the lower
deserts but are expected to remain below excessive heat
thresholds.
&&
.AVIATION...Updated at 1800Z.
South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:
No aviation concerns are expected through the TAF period. Light to
moderate southerly to southeasterly winds will transition to
westerly flow during early afternoon with speeds remaining below
10 kts. Some occasional gusts into the mid teens will be seen
from late afternoon to early evening. Mostly light winds will
continue to favor normal diurnal shifts through Monday afternoon.
Skies will remain mostly clear aside from a few mid and high
clouds aoa 15 kft.
Southeast California/Southwest Arizona including KIPL and KBLH:
No aviation concerns expected through the next 24 hours. Winds at
both terminals are expected to remain light for much of the TAF
period with speeds mostly below 10 kts and directions mainly out
of the south to southeast until this evening, when west to
southwest flow will develop. Skies will remain mostly clear with
only a few mid and high clouds aoa 15 kft possible.
&&
.FIRE WEATHER...
Tuesday through Saturday:
A passing low pressure system will produce strong winds on Tuesday
across SE California, the lower Colorado River Valley, SW Arizona
and parts of S Gila cty. Sustained wind speeds of 25-30 mph with
stronger gusts are forecast. Temperatures will also be much
cooler, back to near, or even below seasonal normals by
Wednesday/Thursday. Daytime RH values will drop into the the mid
to upper single digits out west and the mid to upper teens
elsewhere. This combination of strong winds and low RH may lead to
a critical fire weather threat across the lower Colorado River
Valley and parts of southeast California Tuesday afternoon and
evening. Winds will generally remain light by Wednesday and
Thursday with directions favoring diurnal/terrain patterns.
Slightly warmer temperature are expected on Friday and Saturday.
&&
.CLIMATE...
Record high temperatures:
Date Phoenix Yuma El Centro
---- ------- ---- ---------
Sep 6 111 in 2013 113 in 1986 114 in 1934
Sep 7 111 in 1979 114 in 1979 112 in 2019
&&
.SPOTTER INFORMATION STATEMENT...
Spotters should follow standard reporting procedures.
&&
.PSR WATCHES/WARNINGS/ADVISORIES...
AZ...Excessive Heat Warning until 8 PM MST Monday for AZZ530>556-
559>562.
CA...Excessive Heat Warning until 8 PM PDT Monday for CAZ560>570.
&&
DISCUSSION...Rogers
AVIATION...Sawtelle/Hodges
FIRE WEATHER...Rogers/Sawtelle
CLIMATE...MOThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 2:44 PM PDT | Red Flag Warning | PSR | Imperial, Riverside, San Bernardino | 57 hr |
| Sep 5, 6:10 PM PDT | Special Weather Statement | PSR | 35 min |
Nearby
Wind Advisories in California, 2020Wind Advisories in Arizona, 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.