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United States Warnings, Watches, And Advisories Blowing Dust Advisory 
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Blowing Dust Advisory
In effect: Wednesday, Aug 19 2026 5:00 PM MST – Wednesday, Aug 19 2026 10:00 PM MST
Issued by NWS Phoenix AZ
BLOWING DUST ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 10 PM MST THIS EVENING... ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY
What:
For the Extreme Heat Warning, dangerously hot conditions.
Afternoon temperatures 106 to 113. Major Heat Risk. For the Blowing
Dust Advisory, visibility between one-quarter and one mile in
blowing dust expected.
Where:
Gila Bend, Northwest Pinal County, Sonoran Desert Natl
Monument, Tonopah Desert, and West Pinal County.
When:
For the Extreme Heat Warning, until 8 PM MST Friday. For the
Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this
evening.
Impacts:
Hazardous driving conditions due to reduced visibility.
Heat related illnesses increase significantly during extreme heat
events. Overexposure can cause heat cramps and heat exhaustion to
develop and, without intervention, can lead to heat stroke.
Additional Details:
In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water and more.
https://www.maricopa.gov/heat
Instructions:
Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, 'Pull Aside, Stay
Alive'.

An Extreme 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.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Public cooling shelters are available in some areas. Consult county
officials for more details.
Areas Impacted:
Tonopah Desert
Gila Bend
Northwest Pinal County
West Pinal County
Sonoran Desert Natl Monument
492ddbbbce3759c09969357174b8b4c55395e84f.001.1
Blowing Dust Advisory
In effect: Wednesday, Aug 19 2026 5:00 PM MST – Wednesday, Aug 19 2026 10:00 PM MST
Issued by NWS Phoenix AZ
BLOWING DUST ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 10 PM MST THIS EVENING... ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY
What:
For the Extreme Heat Warning, dangerously hot conditions.
Afternoon temperatures 109 to 112. Major Heat Risk. For the Blowing
Dust Advisory, visibility between one-quarter and one mile in
blowing dust expected.
Where:
Buckeye/Avondale, South Mountain/Ahwatukee, and Southeast
Valley/Queen Creek.
When:
For the Extreme Heat Warning, until 8 PM MST Friday. For the
Blowing Dust Advisory, from 5 PM this afternoon to 10 PM MST this
evening.
Impacts:
Hazardous driving conditions due to reduced visibility.
Heat related illnesses increase significantly during extreme heat
events. Overexposure can cause heat cramps and heat exhaustion to
develop and, without intervention, can lead to heat stroke.
Additional Details:
In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water and more.
https://www.maricopa.gov/heat
Instructions:
Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, 'Pull Aside, Stay
Alive'.

An Extreme 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.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Public cooling shelters are available in some areas. Consult county
officials for more details.
Areas Impacted:
Buckeye/Avondale
South Mountain/Ahwatukee
Southeast Valley/Queen Creek
492ddbbbce3759c09969357174b8b4c55395e84f.002.1
Blowing Dust Advisory
In effect: Wednesday, Aug 19 2026 3:00 PM MST – Wednesday, Aug 19 2026 10:00 PM MST
Issued by NWS Tucson AZ
BLOWING DUST ADVISORY IN EFFECT FROM 3 PM TO 10 PM MST WEDNESDAY... ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY
What:
Strong thunderstorms with organized outflow wind gusts of
45-55 mph will result in blowing dust, reducing visibility between
one-quarter mile and one mile at times. Haboob formation is
possible. Dense blowing dust will initially develop across
southeast Pima and western Santa Cruz counties during the late
afternoon and spread west to northwest across the Tohono O'odham
Nation and into western Pima and southeast Pinal counties through
the evening. Dangerously hot conditions with high temperatures
ranging between 103 to 110 degrees and low temperatures 79 to 85
degrees. Major HeatRisk is expected.
Where:
Pinal County, Tohono O'odham Nation, Tucson Metro Area, and
Western Pima County.
When:
For the Extreme Heat Warning, until 8 PM MST Friday. For the
Blowing Dust Advisory, from 3 PM to 10 PM MST Wednesday.
Impacts:
Blowing dust can restrict visibilities below a mile
posing a significant hazard to motorists. In addition, strong and
gusty winds will likely suspend dust into the air that people and
animals breathe. Individuals with heart disease and respiratory
sensitivities may want to reduce their level of exertion to limit
the dust they breathe into their lungs, especially if they are near
dust prone locations. Those most at risk may feel better if they
avoid outside exercise today, keeping windows and doors closed to
help reduce exposure. For the Extreme Heat Warning...heat related
illnesses increase significantly during extreme heat events.
Instructions:
Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, 'Pull Aside, Stay
Alive'.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible and
drink plenty of water.
Areas Impacted:
Western Pima County Including Ajo/Organ Pipe Cactus National Monument
Tohono O'odham Nation including Sells
Tucson Metro Area including Tucson/Green Valley/Marana/Vail
South Central Pinal County including Eloy/Picacho Peak State Park
Southeast Pinal County including Kearny/Mammoth/Oracle
93e4ac169d320f0f6e453dfe95c9d9d685f13416.001.1
Blowing Dust Advisory
In effect: Wednesday, Aug 19 2026 3:00 PM MST – Wednesday, Aug 19 2026 10:00 PM MST
Issued by NWS Tucson AZ
BLOWING DUST ADVISORY IN EFFECT FROM 3 PM TO 10 PM MST WEDNESDAY
What:
Strong thunderstorms with organized outflow wind gusts of
45-55 mph will result in blowing dust, reducing visibility between
one-quarter mile and one mile at times. Dense blowing dust will
initially develop across southeast Pima and western Santa Cruz
counties during the late afternoon and spread west to northwest
across the Tohono O'odham Nation and into western Pima and
southeast Pinal counties through the evening.
Where:
Upper Santa Cruz River Valley/Altar Valley.
When:
From 3 PM to 10 PM MST Wednesday.
Impacts:
Blowing dust can restrict visibilities below a mile
posing a significant hazard to motorists. In addition, strong and
gusty winds will likely suspend dust into the air that people and
animals breathe. Individuals with heart disease and respiratory
sensitivities may want to reduce their level of exertion to limit
the dust they breathe into their lungs, especially if they are near
dust prone locations. Those most at risk may feel better if they
avoid outside exercise today, keeping windows and doors closed to
help reduce exposure.
Instructions:
Persons with respiratory problems should make preparations to stay
indoors until the storm passes. Be ready for a sudden drop in
visibility to near zero. 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 foot off the brake pedal. Remember, 'Pull Aside, Stay
Alive'.
Areas Impacted:
Upper Santa Cruz River and Altar Valleys including Nogales
93e4ac169d320f0f6e453dfe95c9d9d685f13416.003.1