Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Tucson, AZ

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071
WWUS75 KTWC 301528
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
828 AM MST Mon Jun 30 2025

AZZ509-010315-
/O.NEW.KTWC.DU.Y.0010.250630T2000Z-250701T0500Z/
/O.CON.KTWC.XH.W.0003.250630T1700Z-250701T0300Z/
Upper Gila River Valley-
Including the cities of Clifton and Safford
828 AM MST Mon Jun 30 2025

...BLOWING DUST ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM
MST THIS EVENING...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions with temperatures 108 to 112 in
  the Gila River Valley. Isolated thunderstorms with strong
  thunderstorm outflow wind gusts to 45-50 mph will result in
  blowing dust lowering visibility between one-quarter and one mile
  at times. The threat for blowing dust will persist into the
  evening as stronger sustained east-to-southeast winds 20-30 mph
  move into the area from the east.

* WHERE...Upper Gila River Valley.

* WHEN...For the Extreme Heat Warning, until 8 PM MST this evening.
  For the Blowing Dust Advisory, from 1 PM this afternoon to 10 PM
  MST this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events. 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

AZZ501-502-504>506-010300-
/O.CON.KTWC.XH.W.0003.250630T1700Z-250701T0300Z/
Western Pima County-Tohono O`odham Nation-Tucson Metro Area-South
Central Pinal County-Southeast Pinal County-
Including the cities of Marana, Organ Pipe Cactus N.M., Oracle,
Sells, Green Valley, Vail, Mammoth, Picacho Peak State Park, Ajo,
and Tucson
828 AM MST Mon Jun 30 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions with temperatures 108 to 114 in
  the Tucson Metropolitan area, Southeast and South Central Pinal
  County and across western and central Pima County including the
  Tohono O`odham Nation.

* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
  O`odham Nation, Tucson Metro Area, and Western Pima County.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat events.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

AZZ507-508-010315-
/O.NEW.KTWC.DU.Y.0010.250630T2000Z-250701T0500Z/
Upper San Pedro River Valley-Eastern Cochise County below
5000 feet-
Including the cities of Sierra Vista, Benson, Douglas, and
Willcox
828 AM MST Mon Jun 30 2025

...BLOWING DUST ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM
MST THIS EVENING...

* WHAT...Isolated thunderstorms with strong thunderstorm outflow
  wind gusts to 45-50 mph will result in blowing dust lowering
  visibility between one-quarter and one mile at times. The threat
  for blowing dust will persist into the evening as stronger
  sustained east-to-southeast winds 20-30 mph move into the area
  from the east.

* WHERE...Eastern Cochise County below 5000 feet and Upper San Pedro
  River Valley.

* WHEN...From 1 PM this afternoon to 10 PM MST this evening.

* 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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`.

&&

$$

CWR