Blowing Dust Advisory for Upper Santa Cruz River and Altar Valleys including Nogales
Official alert fields
What you need to know
- Applies to
- South Central Pinal County including Eloy/Picacho Peak State Park, Southeast Pinal County including Kearny/Mammoth/Oracle, Tohono O'odham Nation including Sells, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, Upper Santa Cruz River and Altar Valleys including Nogales, Western Pima County Including Ajo/Organ Pipe Cactus National Monument
- Effective
- Ends or expires
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
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...
What the bulletin says to do
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'.
Full official description
Bulletin details
* 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.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Blowing Dust Advisory issued August 18 at 11:28PM MST until August 19 at 10:00PM MST by NWS Tucson AZ
Official revision - Alert
Blowing Dust Advisory issued August 18 at 11:28PM MST until August 19 at 10:00PM MST by NWS Tucson AZ
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Tucson AZ. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected