821 
WWUS55 KTWC 040223
DSWTWC

BULLETIN - EAS ACTIVATION REQUESTED
Dust Storm Warning
National Weather Service Tucson AZ
723 PM MST Mon Aug 3 2026

AZC019-021-040400-
/O.NEW.KTWC.DS.W.0017.260804T0223Z-260804T0400Z/
Pima AZ-Pinal AZ-
723 PM MST Mon Aug 3 2026

The National Weather Service in Tucson has issued a

* Dust Storm Warning for...
  Northeastern Pima County in southeastern Arizona...
  South Central Pinal County in southeastern Arizona...

* Until 900 PM MST.

* At 723 PM MST, a wall of blowing dust in Tucson, moving northwest
  at 25 mph.

  HAZARD...Less than a quarter mile visibility.

  SOURCE...Detected by National Weather Service meteorologists.

  IMPACT...Dangerous life-threatening travel.

* Locations impacted include...
  Tucson, Oro Valley, Marana, Davis-Monthan Air Force Base, Casas
  Adobes, Drexel Heights, Flowing Wells, Tanque Verde, South Tucson,
  Three Points, Avra Valley, Pascua Pueblo Yaqui Reservation,
  Tortolita, San Xavier Community, Saguaro National Park West, Tucson
  Mountain Park, Tucson Estates, Pinal Airpark, Valencia West and
  Catalina State Park.

This includes the following highways...
Interstate 19 between mile markers 57 and 63. Route 86 between mile
markers 153 and 171. Route 77 between mile markers 70 and 83.
Interstate 10 between mile markers 226 and 264.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not drive into a dust storm. PULL ASIDE STAY ALIVE!

Dust storms lead to dangerous driving conditions with visibility
reduced to near zero. If driving, avoid dust storms if possible. If
caught in one, pull offan area the road, turn off your lights and
keep your foot off the brake.

&&

LAT...LON 3250 11152 3266 11117 3229 11074 3199 11114
      3240 11175
TIME...MOT...LOC 0222Z 125DEG 20KT 3226 11106

$$

743 
WWUS55 KTWC 040348
DSWTWC

Dust Storm Warning
National Weather Service Tucson AZ
848 PM MST Mon Aug 3 2026

AZC019-021-040358-
/O.CAN.KTWC.DS.W.0017.000000T0000Z-260804T0400Z/
Pima AZ-Pinal AZ-
848 PM MST Mon Aug 3 2026

...DUST STORM WARNING IS CANCELLED FOR NORTHEASTERN PIMA AND SOUTH
CENTRAL PINAL COUNTIES...

The dust storm which prompted the warning has weakened and exited the
area. Therefore, the Dust Storm Warning has been cancelled.

&&

LAT...LON 3250 11152 3266 11117 3229 11074 3199 11114
      3240 11175
TIME...MOT...LOC 0223Z 125DEG 20KT 3227 11107

$$