Alert archive / Arizona / Blowing Dust Advisories in 2021
Blowing Dust Advisory 8, NWS Phoenix, AZ
NWS Phoenix, AZ issued this blowing dust advisory at Jul 8, 2021, 11:31 AM MST for Maricopa County, Pinal County, Arizona. It took effect at Jul 8, 2021, 5:00 PM MST. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 8, 2021, 11:31 AM MST (18:31 UTC)
- In effect from
- Jul 8, 2021, 5:00 PM MST
- Expired
- Jul 8, 2021, 7:32 PM MST
- In force
- 3 hr
- Issued by
- NWS Phoenix, AZ
Counties Maricopa County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 29 km from the middle of the area, began a volume at 18:35 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
Phoenix, AZ (KPSR), launched 12:00Z, 6.5 hours before the alert went out and 34 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
- 385 J/kg
- Mixed-layer CIN
- -329 J/kg
- Mixed-layer LCL
- 2287 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
027 WWUS75 KPSR 081831 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1131 AM MST Thu Jul 8 2021 AZZ548-550-551-090500- /O.NEW.KPSR.DU.Y.0008.210709T0000Z-210709T0400Z/ /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ East Valley-South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Mesa, Chandler, Tempe, Gilbert, Sun Lakes, and Queen Creek 1131 AM MST Thu Jul 8 2021 ...BLOWING DUST ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 9 PM MST THIS EVENING... ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 111 to 115 expected. For the Blowing Dust Advisory, visibility between one quarter mile and one mile in blowing dust expected. * WHERE...The East Valley of the Phoenix Metro Area, South Mountain/Ahwatukee and Southeast Valley/Queen Creek. * WHEN...For the Excessive Heat Warning, from 10 AM Friday to 8 PM MST Saturday. For the Blowing Dust Advisory, from 5 PM this afternoon to 9 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. High Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. 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. 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. && $$ CAZ560>563-566>568-570-090500- /O.CON.KPSR.EH.W.0004.210709T1700Z-210712T0300Z/ Joshua Tree NP West-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Imperial County West-Imperial Valley-Chiriaco Summit- Chuckwalla Valley- Including the cities of Cottonwood Visitor, Lost Horse-Keys Village, Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, and Midland 1131 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM PDT SUNDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 106 to 121 expected. * WHERE...Chiriaco Summit, Salton Sea, Southwest corner of Imperial County, Eastern portion of Joshua Tree National Park, Western portion of Joshua Tree National Park, Imperial Valley, Western Imperial County and Chuckwalla Valley. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * 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. && $$ AZZ530-532>534-538-CAZ569-090500- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Parker Valley-Yuma-Central La Paz-Aguila Valley-Tonopah Desert- Palo Verde Valley- Including the cities of Parker, Ehrenberg, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, Wintersburg, Martinez Lake, Blythe, Palo Verde, and Ripley 1131 AM MST Thu Jul 8 2021 /1131 AM PDT Thu Jul 8 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /10 AM PDT/ FRIDAY TO 8 PM MST /8 PM PDT/ SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 118 expected. * WHERE...In Arizona, Aguila Valley, Parker Valley, Central La Paz County, Yuma and Tonopah Desert. In California, Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ Friday to 8 PM MST /8 PM PDT/ Saturday. * IMPACTS...High Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. 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. && $$ AZZ537-540>544-546-549-090500- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-Fountain Hills/East Mesa- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, and Fountain Hills 1131 AM MST Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115 expected. * WHERE...North Phoenix/Glendale, Scottsdale/Paradise Valley, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, Fountain Hills/East Mesa and The Northwest Valley of the Phoenix Metro Area. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * 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. && $$ AZZ539-553>555-559-090400- /O.NEW.KPSR.DU.Y.0008.210709T0000Z-210709T0400Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, and Kaka 1131 AM MST Thu Jul 8 2021 ...BLOWING DUST ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 9 PM MST THIS EVENING... * WHAT...Afternoon thunderstorms today may produce strong gusty winds and outflow winds capable of blowing dust. Visibility between one quarter mile and one mile in blowing dust expected. * WHERE...Gila Bend, Northwest Pinal County, West Pinal County, Apache Junction/Gold Canyon and Sonoran Desert National Monument. * WHEN...From 5 PM this afternoon to 9 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. && $$
2 follow-up statements
260 WWUS75 KPSR 082106 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 206 PM MST Thu Jul 8 2021 CAZ560>563-566>568-570-091230- /O.EXT.KPSR.EH.W.0004.210709T1700Z-210713T0300Z/ Joshua Tree NP West-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Imperial County West-Imperial Valley-Chiriaco Summit- Chuckwalla Valley- Including the cities of Cottonwood Visitor, Lost Horse-Keys Village, Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, and Midland 206 PM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM FRIDAY TO 8 PM PDT MONDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 105 to 123 expected. * WHERE...Chiriaco Summit, Salton Sea, Southwest corner of Imperial County, Eastern portion of Joshua Tree National Park, Western portion of Joshua Tree National Park, Imperial Valley, Western Imperial County and Chuckwalla Valley. * WHEN...From 10 AM Friday to 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. && $$ AZZ548-550-551-091230- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ /O.CON.KPSR.DU.Y.0008.210709T0000Z-210709T0400Z/ East Valley-South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Mesa, Chandler, Tempe, Gilbert, Sun Lakes, and Queen Creek 206 PM MST Thu Jul 8 2021 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions. Afternoon temperatures 112 to 115 expected. For the Blowing Dust Advisory today, afternoon thunderstorms may produce localized strong gusty winds and outflow winds capable of blowing dust. Visibility between one quarter mile and one mile in blowing dust expected. * WHERE...The East Valley of the Phoenix Metro Area, Southeast Valley/Queen Creek and South Mountain/Ahwatukee. * WHEN...For the Excessive Heat Warning, from 10 AM Friday to 8 PM MST Saturday. For the Blowing Dust Advisory, until 9 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. High Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. 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. 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. && $$ AZZ530-532>534-538-CAZ569-091230- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Parker Valley-Yuma-Central La Paz-Aguila Valley-Tonopah Desert- Palo Verde Valley- Including the cities of Parker, Ehrenberg, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, Wintersburg, Martinez Lake, Blythe, Palo Verde, and Ripley 206 PM MST Thu Jul 8 2021 /206 PM PDT Thu Jul 8 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /10 AM PDT/ FRIDAY TO 8 PM MST /8 PM PDT/ SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 111 to 119 expected. * WHERE...In Arizona, Aguila Valley, Parker Valley, Central La Paz County, Yuma and Tonopah Desert. In California, Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ Friday to 8 PM MST /8 PM PDT/ Saturday. * 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. && $$ AZZ537-540>544-546-549-091230- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-Fountain Hills/East Mesa- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, and Fountain Hills 206 PM MST Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115 expected. * WHERE...North Phoenix/Glendale, Scottsdale/Paradise Valley, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, Fountain Hills/East Mesa and The Northwest Valley of the Phoenix Metro Area. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * 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. && $$ AZZ539-553>555-559-090400- /O.CON.KPSR.DU.Y.0008.210709T0000Z-210709T0400Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, Casa Grande, Florence, Coolidge, Apache Junction, and Kaka 206 PM MST Thu Jul 8 2021 ...BLOWING DUST ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Afternoon thunderstorms may produce localized strong gusty winds and outflow winds capable of blowing dust. Visibility between one quarter mile and one mile in blowing dust expected. * WHERE...Northwest Pinal County, Apache Junction/Gold Canyon, West Pinal County, Sonoran Desert National Monument and Gila Bend. * WHEN...Until 9 PM MST this evening. * IMPACTS...Hazardous driving conditions due to reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be ready for a sudden drop in visibility. If you encounter blowing dust or blowing sand on the roadway or see it approaching, pull off the road as far as possible and put your vehicle in park. Turn the lights all the way off and keep your foot off the brake pedal. Remember, pull aside, stay alive. && $$
036 WWUS75 KPSR 090232 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 732 PM MST Thu Jul 8 2021 AZZ548-550-551-091445- /O.CAN.KPSR.DU.Y.0008.000000T0000Z-210709T0400Z/ /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ East Valley-South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Including the cities of Mesa, Chandler, Tempe, Gilbert, Sun Lakes, and Queen Creek 732 PM MST Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... ...BLOWING DUST ADVISORY IS CANCELLED... * WHAT...Dangerously hot conditions. Afternoon temperatures 112 to 115 expected. * WHERE...The East Valley of the Phoenix Metro Area, Southeast Valley/Queen Creek and South Mountain/Ahwatukee. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * IMPACTS...High Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. 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. && $$ AZZ539-553>555-559-090345- /O.CAN.KPSR.DU.Y.0008.000000T0000Z-210709T0400Z/ Gila Bend-Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon-Sonoran Desert Natl Monument- 732 PM MST Thu Jul 8 2021 ...BLOWING DUST ADVISORY IS CANCELLED... The potential for blowing dust with low visibilities has decreased. $$ CAZ560>563-566>568-570-091445- /O.CON.KPSR.EH.W.0004.210709T1700Z-210713T0300Z/ Joshua Tree NP West-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Imperial County West-Imperial Valley-Chiriaco Summit- Chuckwalla Valley- Including the cities of Cottonwood Visitor, Lost Horse-Keys Village, Desert Shores, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, and Midland 732 PM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM PDT MONDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 105 to 123 expected. * WHERE...Chiriaco Summit, Salton Sea, Southwest corner of Imperial County, Eastern portion of Joshua Tree National Park, Western portion of Joshua Tree National Park, Imperial Valley, Western Imperial County and Chuckwalla Valley. * WHEN...From 10 AM Friday to 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. && $$ AZZ530-532>534-538-CAZ569-091445- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Parker Valley-Yuma-Central La Paz-Aguila Valley-Tonopah Desert- Palo Verde Valley- Including the cities of Parker, Ehrenberg, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, Wintersburg, Martinez Lake, Blythe, Palo Verde, and Ripley 732 PM MST Thu Jul 8 2021 /732 PM PDT Thu Jul 8 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /10 AM PDT/ FRIDAY TO 8 PM MST /8 PM PDT/ SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 111 to 119 expected. * WHERE...In Arizona, Aguila Valley, Parker Valley, Central La Paz County, Yuma and Tonopah Desert. In California, Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ Friday to 8 PM MST /8 PM PDT/ Saturday. * 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. && $$ AZZ537-540>544-546-549-091445- /O.CON.KPSR.EH.W.0004.210709T1700Z-210711T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-Fountain Hills/East Mesa- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, and Fountain Hills 732 PM MST Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO 8 PM MST SATURDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115 expected. * WHERE...North Phoenix/Glendale, Scottsdale/Paradise Valley, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, Fountain Hills/East Mesa and The Northwest Valley of the Phoenix Metro Area. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * 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. && $$
What forecasters said that day
The local office's own words before this blowing dust 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 blowing dust advisory went out at Jul 8, 5:04 AM MST, 6 hours 27 minutes earlier.
Area forecast discussion, Jul 8, 5:04 AM MST, 6 hours 27 minutes before
Area Forecast Discussion
National Weather Service Phoenix AZ
504 AM MST Thu Jul 8 2021
.UPDATE...Updated Aviation Discussion.
&&
.SYNOPSIS...
Above normal temperatures will affect the area through the rest
of the week with highs likely peaking Saturday, mostly in a 109
to 113 degree range across the Arizona lower deserts and mostly
between 112 to 118 degrees over southeast California and the Lower
Colorado River Valley. An increase in moisture today into Friday
will likely lead to increased storm activity over the Arizona high
terrain, but chances are fairly low for lower desert locations.
After a drier weekend, storm chances are likely to increase
starting early next week with temperatures trending toward
seasonal normals by the middle of next week.
&&
.DISCUSSION...
The main forecast concern through the upcoming weekend is the
strengthening high pressure ridge centered to the north of the
area and the impact it will have on increasing temperatures. For
today, a surge of low level moisture out of the south will
increase surface dew points and keep daytime highs at or a degree
cooler than Wednesday's readings. However, with dew points
increasing into the 60s this morning and maybe only bottoming out
in the upper 50s this afternoon, it will likely feel just as if
not a bit hotter. Water vapor imagery shows the increased moisture
coming from the south, but also northeasterly drying across
southeast Arizona as much drier air moved through New Mexico
yesterday.
The moisture surge today will be fairly shallow, but is expected
to push into the higher terrain north of Phoenix. The HREF picks
up on this available moisture and increased instability later
today with MUCAPEs increasing to around 1000 J/kg over all of
southwest and southeast Arizona. Scattered showers and
thunderstorms are expected for this afternoon along the Mogollon
Rim into the White Mtns. Storms over the high terrain may pose a
minimal heavy rainfall and flooding threat, but moisture will not
be deep enough for organized heavy rainfall. The threat for gusty
winds is likely to be a bit more of an issue today than heavy
rainfall and this will likely persist westward into the Phoenix
area early this evening in the form of an organized outflow. There
will also be a slight chance (10-20%) for showers and storms
surviving or maybe even developing within the Phoenix metro this
evening, but the moist mixed layer will not likely be deep enough
for organized storms. A more organized line of high terrain
storms, although not very likely to happen (5-10% chance), could
feasibly develop a large enough cold pool to allow scattered
storms into Phoenix this evening, but the HREF does not support
this scenario. A very similar environment is expected for Friday
with yet another Gulf surge tonight into Friday morning, but again
the moist mixed layer will be limited with actually some drying
taking place at 750-700mb. HREF supports similar high terrain
afternoon showers and storms, but the combination of the
strengthening ridge just to our north and the likelihood of a
capping inversion should again limit storms surviving into the
south-central Arizona deserts.
Temperatures Friday are forecast to warm into a 110-113 degree
range over the south-central Arizona deserts to 112-116 degrees
across southeast California into the Lower CO River Valley. This
warming will occur with the strengthening of the high pressure
ridge, and it is still expected to peak in intensity on Saturday
when highs should reach 113-118 degrees over the western deserts
to 112-114 degrees in the Phoenix area. Stronger subsidence is
expected on Saturday and this should limit the storm activity to
the Arizona higher terrain. Moisture levels over the weekend are
likely to remain fairly stable with afternoon surface dew points
mostly in the mid to upper 50s.
For Sunday, the upper level ridge will begin to weaken while
shifting briefly more toward the northwest. This should mark the
first day of a cooling trend, but forecast temperatures are still
quite hot with highs 110-112 degrees in the Phoenix area to
111-115 across the western deserts. Chances for storms on Sunday
over the high terrain should be similar to Saturday, while the
lower deserts chances increase slightly to 10-15%.
Models continue to show increasing moisture and storm chances
throughout the first half of next week with 20-25% chances for
storms over the south-central Arizona deserts on Monday and
closer to 40% for Tuesday and Wednesday. Although it is still very
early, the decent possibility of deeper moisture spreading
westward across much of the area and the weakening of the ridge to
our northwest are definitely positive signs for more widespread
storm chances. NBM temperature guidance shows the cooling trend
persisting through the middle of next week with highs eventually
dropping back to around to slightly cooler than normal by next
Wednesday.
&&
.AVIATION...Updated at 1204Z.
South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:
Light easterly winds, mostly remaining below 10 kts, will be
favored through the rest of the morning with periods of variable
winds expected at times. Winds are expected to take on a westerly
component going into the early afternoon hours and continuing into
the early evening. Forecast uncertainty increases this evening
with model guidance indicating the potential for an east to
northeast outflow to move through the Phoenix area after 00Z.
Confidence is low at this time with respect to the magnitude of
any outflow that reaches the metro. HREF guidance shows about a
30-40% chance for outflow winds to exceed 30 kts across the
Valley. Any gusty outflow that reaches the Phoenix metro will be
capable of producing some BLDU, primarily at KIWA. Chances for
convection reaching the terminals remains low (~15%) with the best
chances for an isolated vicinity shower or thunderstorm remaining
across the east Valley, so have kept VCSH in the TAFs for KIWA
and KSDL for now. Otherwise, FEW-SCT clouds aoa 12 kft are
expected through the period, becoming SCT-BKN this evening.
Southeast California/Southwest Arizona including KIPL and KBLH:
No major aviation concerns are expected through the next 24 hours.
Winds at KIPL will generally favor a southeast component, while
winds at KBLH favor a southerly component. Some afternoon
breeziness is expected with gusts to around 20 kts possible at
KBLH. Otherwise, expect mostly clear skies with cloud decks
remaining aoa 15 kft.
&&
.FIRE WEATHER...
Saturday through Wednesday:
Relatively drier conditions will relegate most storms to the
higher terrain north and east of Phoenix over the weekend.
However, increasing moisture will bring better chances for storms
and wetting rains later in the period. Storms that form will be
capable of producing lightning strikes, locally heavy rain, strong
wind gusts, and long-traveling outflow winds that cause sudden
changes in wind directions. Otherwise, Saturday will be the
hottest day of the week with widespread temps in excess of 110
degrees but temps do cool closer to seasonal normals as the
moisture increases. Min RH values will generally fall into the
15-20% range for the lower desert and 25-45% for higher elevations
and agricultural areas. Overnight recoveries will exceed 35% most
places with recoveries potentially exceeding 50% for higher
elevations. Outside of thunderstorms, winds will follow typical
diurnal/topographic influences with afternoon gusts near 15-20
mph.
&&
.SPOTTER INFORMATION STATEMENT...
Spotters should follow standard reporting procedures.
&&
.PSR WATCHES/WARNINGS/ADVISORIES...
AZ...Excessive Heat Warning from 10 AM Friday to 8 PM MST Saturday
for AZZ530-532>534-537-538-540>544-546-548>551.
CA...Excessive Heat Warning from 10 AM Friday to 8 PM PDT Saturday
for CAZ569.
Excessive Heat Warning from 10 AM Friday to 8 PM PDT Sunday for
CAZ560>563-566>568-570.
&&
DISCUSSION...Kuhlman
AVIATION...Smith
FIRE WEATHER...Kuhlman/HirschThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 3:19 PM MST | Special Weather Statement | PSR | Gila | 41 min |
Nearby
Blowing Dust Advisories in Arizona, 2021Every blowing dust advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.