Alert archive / Arizona / Excessive Heat Warnings in 2021
Excessive Heat Warning 5, NWS Phoenix, AZ
NWS Phoenix, AZ issued this excessive heat warning at Aug 2, 2021, 1:45 PM MST for 4 counties in Arizona; Imperial County, Riverside County, San Bernardino County, California. It took effect at Aug 3, 2021, 10:00 AM MST. It was in force for 58 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 2, 2021, 1:45 PM MST (20:45 UTC)
- In effect from
- Aug 3, 2021, 10:00 AM MST
- Expired
- Aug 5, 2021, 8:00 PM MST
- In force
- 58 hr
- Issued by
- NWS Phoenix, AZ
Counties La Paz County, AZ, Maricopa County, AZ, Pinal County, AZ, Yuma County, AZ, Imperial County, CA, Riverside County, CA, San Bernardino County, CA
The radar
The Yuma radar (KYUX), 118 km from the middle of the area, began a volume at 20:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 1:04 PM MST | WILDFIRE | Wildomar, CA | BAXTER FIRE WAS A VEGETATION FIRE IN WILDOMAR NEAR BAXTER (WILDOMAR TRAIL) ROAD AND INTESTATE 15. THREE ACRES BURNED. EVACUATION ORDERS FOR AREAS SOUTH OF WILDOMAR TRAIL WERE LIFTED. NO STRUCTURES BURNED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phoenix, AZ (KPSR), launched 12:00Z, 8.8 hours before the alert went out and 205 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
- 258 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 2514 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
773 WWUS75 KPSR 022045 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 145 PM MST Mon Aug 2 2021 AZZ530>533-535-536-CAZ561>570-031230- /O.UPG.KPSR.EH.A.0004.210803T1700Z-210805T0300Z/ /O.NEW.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 145 PM MST Mon Aug 2 2021 /145 PM PDT Mon Aug 2 2021/ ...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM MST /10 AM PDT/ TUESDAY TO 8 PM MST /8 PM PDT/ WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 109 to 119 expected. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...From 10 AM MST /10 AM PDT/ Tuesday to 8 PM MST /8 PM PDT/ Wednesday. * 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>544-546-548>551-553>555-031230- /O.NEW.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 145 PM MST Mon Aug 2 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 109 to 113 expected. * WHERE...Portions of south central Arizona. * WHEN...From 10 AM Tuesday to 8 PM MST Wednesday. * 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. && $$ AZZ539-559-031230- /O.NEW.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 145 PM MST Mon Aug 2 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TUESDAY TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 114 expected. * WHERE...Gila Bend and Sonoran Desert National Monument. * WHEN...From 10 AM Tuesday to 8 PM MST Wednesday. * 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. && $$
8 follow-up statements
231 WWUS75 KPSR 031005 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 305 AM MST Tue Aug 3 2021 AZZ534-538-032215- /O.EXA.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 305 AM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 114 expected. * WHERE...Aguila Valley and Tonopah Desert. * WHEN...From 10 AM this morning to 8 PM MST Wednesday. * 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>533-535-536-CAZ561>570-032215- /O.EXT.KPSR.EH.W.0005.210803T1700Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 305 AM MST Tue Aug 3 2021 /305 AM PDT Tue Aug 3 2021/ ...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM MST /10 AM PDT/ THIS MORNING TO 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 120 expected. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...From 10 AM MST /10 AM PDT/ this morning to 8 PM MST /8 PM PDT/ Thursday. * 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>544-546-548>551-553>555-032215- /O.CON.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 305 AM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 113 expected. * WHERE...Portions of south central Arizona. * WHEN...From 10 AM this morning to 8 PM MST Wednesday. * 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. && $$ AZZ539-559-032215- /O.CON.KPSR.EH.W.0005.210803T1700Z-210805T0300Z/ Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 305 AM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115 expected. * WHERE...Sonoran Desert National Monument and Gila Bend. * WHEN...From 10 AM this morning to 8 PM MST Wednesday. * 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. && $$ AJ
294 WWUS75 KPSR 032223 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 323 PM MST Tue Aug 3 2021 AZZ534-538-041130- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 323 PM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 109 to 114. * WHERE...Aguila Valley and Tonopah Desert. * WHEN...Until 8 PM MST Wednesday. * 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>544-546-548>551-553>555-041130- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 323 PM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 113. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST Wednesday. * 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. && $$ AZZ539-559-041130- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 323 PM MST Tue Aug 3 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST WEDNESDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 115. * WHERE...Sonoran Desert National Monument and Gila Bend. * WHEN...Until 8 PM MST Wednesday. * 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. && $$ AZZ530>533-535-536-CAZ561>570-041130- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 323 PM MST Tue Aug 3 2021 /323 PM PDT Tue Aug 3 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 120. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...Until 8 PM MST /8 PM PDT/ Thursday. * 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. && $$
065 WWUS75 KPSR 041019 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 319 AM MST Wed Aug 4 2021 AZZ534-538-042230- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Aguila Valley-Tonopah Desert- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, and Wintersburg 319 AM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115. * WHERE...Aguila Valley and Tonopah Desert. * WHEN...Until 8 PM MST this evening. * 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>544-546-548>551-553>555-042230- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 319 AM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST this evening. * 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. && $$ AZZ539-559-042230- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Gila Bend-Sonoran Desert Natl Monument- Including the cities of Gila Bend, Sentinel, and Kaka 319 AM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115. * WHERE...Sonoran Desert National Monument and Gila Bend. * WHEN...Until 8 PM MST this evening. * 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. && $$ AZZ530>533-535-536-CAZ561>570-042230- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 319 AM MST Wed Aug 4 2021 /319 AM PDT Wed Aug 4 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 113 to 120. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ Thursday. * IMPACTS...Very 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. && $$ AJ
014 WWUS75 KPSR 042038 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 138 PM MST Wed Aug 4 2021 AZZ530>533-535-536-CAZ561>570-051100- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 138 PM MST Wed Aug 4 2021 /138 PM PDT Wed Aug 4 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 112 to 120. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...Until 8 PM MST /8 PM PDT/ Thursday. * 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>544-546-548>551-553>555-050300- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 138 PM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 109 to 114. * WHERE...Portions of south central Arizona. * WHEN...Until 8 PM MST this evening. * 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. && $$ AZZ534-538-539-559-050300- /O.CON.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Aguila Valley-Tonopah Desert-Gila Bend- Sonoran Desert Natl Monument- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, Wintersburg, Gila Bend, Sentinel, and Kaka 138 PM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 115. * WHERE...Sonoran Desert National Monument, Aguila Valley, Gila Bend and Tonopah Desert. * WHEN...Until 8 PM MST this evening. * 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. && $$
148 WWUS75 KPSR 050247 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 747 PM MST Wed Aug 4 2021 AZZ537-540>544-546-548>551-553>555-050400- /O.EXP.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Northwest Valley-Buckeye/Avondale-Cave Creek/New River- Deer Valley-Central Phoenix-North Phoenix/Glendale- Scottsdale/Paradise Valley-East Valley-Fountain Hills/East Mesa- South Mountain/Ahwatukee-Southeast Valley/Queen Creek- Northwest Pinal County-West Pinal County- Apache Junction/Gold Canyon- Including the cities of Circle City, Surprise, Wittmann, Beardsley, Sun City West, Avondale, Cashion, Goodyear, Liberty, Scottsdale, Peoria, Phoenix, Paradise Valley, Mesa, Chandler, Tempe, Gilbert, Fountain Hills, Sun Lakes, Queen Creek, Casa Grande, Florence, Coolidge, and Apache Junction 747 PM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... $$ AZZ534-538-539-559-050400- /O.EXP.KPSR.EH.W.0005.000000T0000Z-210805T0300Z/ Aguila Valley-Tonopah Desert-Gila Bend- Sonoran Desert Natl Monument- Including the cities of Aguila, Gladden, Wickenburg, Arlington, Hassayampa, Tonopah, Wintersburg, Gila Bend, Sentinel, and Kaka 747 PM MST Wed Aug 4 2021 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... $$ AZZ530>533-535-536-CAZ561>570-051015- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 747 PM MST Wed Aug 4 2021 /747 PM PDT Wed Aug 4 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THURSDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 117. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...Until 8 PM MST /8 PM PDT/ Thursday. * 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. && $$
311 WWUS75 KPSR 050844 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 144 AM MST Thu Aug 5 2021 AZZ530>533-535-536-CAZ561>570-052045- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 144 AM MST Thu Aug 5 2021 /144 AM PDT Thu Aug 5 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 118. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * 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. && $$
003 WWUS75 KPSR 052101 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 201 PM MST Thu Aug 5 2021 AZZ530>533-535-536-CAZ561>570-060300- /O.CON.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-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, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 201 PM MST Thu Aug 5 2021 /201 PM PDT Thu Aug 5 2021/ ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/ THIS EVENING... * WHAT...Dangerously hot conditions. Afternoon temperatures 110 to 117. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * 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. && $$
256 WWUS75 KPSR 060251 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 751 PM MST Thu Aug 5 2021 AZZ530>533-535-536-CAZ561>570-060400- /O.EXP.KPSR.EH.W.0005.000000T0000Z-210806T0300Z/ Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County- Gila River Valley-Joshua Tree NP East-Imperial County Southwest- Salton Sea-Chuckwalla Mountains-Imperial County Southeast- Imperial County West-Imperial Valley-Chiriaco Summit- Palo Verde Valley-Chuckwalla Valley- Including the cities of Parker, Ehrenberg, Palm Canyon, Yuma, Fortuna Foothills, Brenda, Harcuvar, Quartzsite, Vicksburg, Vicksburg Junction, Salome, Ligurta, Desert Shores, Imperial Hot Mineral Springs, Winterhaven, Coolidge Springs, Salton City, Winona, Coyote Wells, Ocotillo, Plaster City, El Centro, Calexico, Alamorio, Brawley, Chiriaco Summit, Martinez Lake, Blythe, Palo Verde, Ripley, and Midland 751 PM MST Thu Aug 5 2021 /751 PM PDT Thu Aug 5 2021/ ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM MST /8 PM PDT/ THIS EVENING... $$
What forecasters said that day
The local office's own words before this excessive heat warning 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 excessive heat warning went out at Aug 2, 10:56 AM MST, 2 hours 49 minutes earlier.
Area forecast discussion, Aug 2, 10:56 AM MST, 2 hours 49 minutes before
Area Forecast Discussion
National Weather Service Phoenix AZ
1056 AM MST Mon Aug 2 2021
.UPDATE...Updated 18Z Aviation Discussion.
&&
.SYNOPSIS...
Storm chances will continue to trend down through midweek as drier
air moves in. Meanwhile, high pressure will strengthen over the
region. The combination will lead to a warming trend with highs
climbing well above normal. It will be hottest over southeast
California and southwest Arizona with a number of locations
reaching, or even exceeding, 115 degrees Tuesday and Wednesday.
The Phoenix area will not be quite as hot. But, highs will be
around 110 degrees. During the latter half of the week and over
the weekend, storm chances are expected to slowly increase from
east to west. Also, high temperatures are expected to trend down
considerably...especially over south-central Arizona.
&&
.DISCUSSION...
That last bit of convection over Arizona as of this writing is in
the far southeast corner. Just south though, robust activity is
occurring over eastern Sonora/western Chihuahua. Small pockets of
of midlevel cloudiness have been percolating over south-central
AZ (including metro Phoenix). Earlier runs of the HRRR (and the
00Z HiRes FV3) were developing isolated convection centered near
the Estrellas in the 06Z-12Z time frame. Now that outflows from
distant storms have faded away, that scenario is less likely and
the latest HRRR has dropped those storms. The convection south of
the border could possibly send out a gravity wave that might
trigger a stray shower over our CWA before sunrise but that is a
low probability - especially with the unusually strong
southwesterly jet level winds in place on the back side of an
upper trough with its axis over the Great Basin.
The the dry advection trend continues today. For our CWA, this is
expected to keep storms limited to higher terrain areas east of
Greater Phoenix. Even there, the coverage is not expected to be
widespread with the best chances east of Globe. But, any storms
that form will be capable of a combination of both strong winds
and locally heavy rain with mixed layer CAPE exceeding 1000 J/kg
in some areas. Storm chances trend down further Tuesday and again
Wednesday due to dry advection as well as warming aloft. By
Wednesday, PoPs dip below 15% altogether (very low single digits
for the south- central AZ deserts).
As storm chances fall, temperatures rise. This is due not only to
less latent heating and less cloudiness but also strengthening of
high pressure aloft. Noticeable warming started yesterday and the
warming trend will continue through Wednesday. Southeast
California and southwest Arizona will climb above 110 today. It
will be even hotter Tuesday and Wednesday with high Heat Risk in a
lot of areas (very high in some spots). Thus, an Excessive Heat
Watch is in effect. In fact, the Watch was expanded eastward to
cover all of La Paz and Yuma Counties. Anticipate 115 will be
reached or even exceeded in a number of places within the Watch.
South-central AZ will also have a warming trend but highs are not
expected to be quite as hot. However, the latest NBM guidance is
slightly warmer with PHX peaking on Wednesday at 111. With the
above normal highs and warm overnight lows, anticipate some
pockets of high Heat Risk. If forecast temps rise just a little
more, we may need to expand the Watch to the Phoenix area.
For the latter half of the week and the weekend, there is good
model agreement on a pattern change wherein the ridge gets
flattened by a trough passing to the north. Also there will be a
large inverted trough moving westward across Mexico with the
northern end at least brushing Arizona. Another feature of
interest is a smaller short wave (possibly the one currently over
the Great Basin) riding over the ridge and then southward through
the southern Rockies. That feature (or a portion of it) may phase
up with the larger inverted trough. The end result appears to be
an uptrend in moisture/humidity that begins as early as Wednesday
night. PWAT looks to peak on Saturday. The combination of weaker
high pressure and substantially higher atmospheric moisture
content is expected to cause high temperatures to trend down
significantly. Also, storm chances increase from east to west.
But, it appears storm chances will struggle to get above single
digits over southeast California. As an aside, the temperature
trend will be heavily affected by how the convection plays out
(more cloud cover and rain cooled air from outflows - depending
upon where that takes place). It does not appear at this time
that we will be looking at a similar situation as what we had in
recent days with the unusually strong inverted trough passage from
last month.
&&
.AVIATION...Updated at 1755Z.
South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:
Typical diurnal trends are favored today, with wind speeds
generally 10 kts or less and periods of variability during diurnal
wind shifts. Isolated thunderstorms are expected to remain
relegated to higher terrain this afternoon, with less a than 10%
chance in the metro area. There is also a 10% chance for outflow
winds from distant storms, with speeds in excess of 30 kts, to
make it into the metro area this evening. Clouds bases should
remain above 10 kft with FEW to SCT coverage.
Southeast California/Southwest Arizona including KIPL and KBLH:
No significant aviation weather concerns anticipated through
Monday evening. Winds will generally remain light and diurnal
under mostly clear skies.
&&
.FIRE WEATHER...
Wednesday through Sunday:
Temperatures are expected to peak on Wednesday with highs at or
above 110 on the lower deserts (at or above 115 at a lot of places
in southeast CA and southwest AZ). Humidities will be at their
lowest with Min RH at or below 15% on the lower elevations and up
to 20% on the higher terrain. Max RH will be lowest over eastern
Riverside County (20-25%) and not as bad elsewhere on the lower
deserts (30-50%) and better over the south-central AZ higher
terrain (50-70%). Atmospheric moisture content trends upward
during the latter half of the week (starting as early as Wednesday
night) and high temperatures trend downward significantly. As a
result, Min RH increases 10-20% by Sunday and Max RH increases
20-30%. Storm chances trend upward from east to west but at this
time are expected to be limited to AZ. Apart from thunderstorms,
winds will tend to favor typical diurnal patterns Wednesday. A
change is anticipated beginning Thursday over portions of
southeast CA and southwest AZ with southerly breeziness and that
continues through Sunday (most noticeable during midday through
evening).
&&
.SPOTTER INFORMATION STATEMENT...
Spotters should follow standard reporting procedures.
&&
.PSR WATCHES/WARNINGS/ADVISORIES...
AZ...Excessive Heat Watch from Tuesday morning through Wednesday
evening for AZZ530>533-535-536.
CA...Excessive Heat Watch from Tuesday morning through Wednesday
evening for CAZ561>570.
&&
DISCUSSION...AJ
AVIATION...Benedict/Rogers
FIRE WEATHER...AJIn the hours before
Local storm report, Aug 2, 11:34 AM MST, 2 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1134 AM MST MON AUG 2 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0950 PM FLASH FLOOD 22 NW HILLTOP 33.84N 110.56W
08/01/2021 GILA AZ MESONET
*** DELAYED REPORT *** USGS STREAMGAUGE
#09497800 CIBECUE CREEK NEAR CHRYSOTILE
MEASURED AN APPROXIMATE 4 FT. INCREASE IN A
15 MINUTE PERIOD.
&&
GLLocal storm report, Aug 2, 11:47 AM MST, 1 hour 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
1147 AM MST MON AUG 2 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0820 PM FLASH FLOOD 4 N CAVE CREEK 33.89N 111.95W
07/29/2021 MARICOPA AZ MESONET
*** DELAYED REPORT *** USGS STREAMGAUGE
#09512280 CAVE CREEK BELOW COTTONWOOD CREEK
NEAR CAVE CREEK REACHED AND EXCEEDED ACTION
STAGE. THIS GAUGE MEASURED AN APPROXIMATELY
5 FT. INCREASE DURING A 20 MINUTE PERIOD.
&&
GLThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 5:25 PM MST | Special Weather Statement | PSR | 35 min | |
| Aug 1, 5:47 PM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 1, 7:26 PM MST | Flash Flood Warning | PSR | Gila | 2 hr |
| Aug 2, 6:46 AM MST | Areal Flood Warning | PSR | Gila | 12 hr |
Nearby
Excessive Heat Warnings in Arizona, 2021Excessive Heat Warnings in California, 2021Every excessive heat warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.