<alert><identifier>urn:oid:2.49.0.1.840.0.b0525e9431146c3dab227d05e94185394341a2d1.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-08-27T17:35:00-07:00</sent><status>Actual</status><msgType>Alert</msgType><source>211803 v2.3.0</source><scope>Public</scope><code>IPAWSv1.0</code><info><language>en-US</language><category>Met</category><event>Dust Storm Warning</event><responseType>Avoid</responseType><urgency>Expected</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>DSW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>DSW</value></eventCode><effective>2026-08-27T17:35:00-07:00</effective><onset>2026-08-27T17:35:00-07:00</onset><expires>2026-08-27T18:00:00-07:00</expires><senderName>NWS Tucson AZ</senderName><headline>Dust Storm Warning issued August 27 at 5:35PM MST until August 27 at 6:00PM MST by NWS Tucson AZ</headline><description>The National Weather Service in Tucson has issued a

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

* Until 600 PM MST.

* At 535 PM MST, several bands of blowing dust were located along a
line from near Pascua Pueblo Yaqui Reservation to near South Tucson
and western Tucson, moving northwest at 20 mph.

HAZARD...Less than a quarter mile visibility with strong winds in
excess of 50 mph.

SOURCE...Radar indicated.

IMPACT...Dangerous life-threatening travel.

* Locations impacted include...
Tucson, Davis-Monthan Air Force Base, Casas Adobes, Drexel Heights,
Flowing Wells, South Tucson, Pascua Pueblo Yaqui Reservation, San
Xavier Community, Valencia West, Tucson Mountain Park, Tucson
International Airport, Tucson Estates, Summit, Saguaro National
Park West, Catalina Foothills, San Xavier Mission and Ryan
AirField.

This includes the following highways...
Interstate 19 between mile markers 51 and 63. Route 86 between mile
markers 156 and 171. Route 77 between mile markers 70 and 73.
Interstate 10 between mile markers 250 and 267.
</description><instruction>Motorists should not drive into a dust storm. PULL ASIDE STAY ALIVE!</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>DSWTWC</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WWUS55 KTWC 280035</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-08-28T00:35:00Z...storm...128DEG...10KT...32.05,-111.13 32.25,-110.94</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>EAS</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>NWEM</value></parameter><parameter><valueName>EAS-ORG</valueName><value>WXR</value></parameter><parameter><valueName>VTEC</valueName><value>/O.NEW.KTWC.DS.W.0026.260828T0035Z-260828T0100Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-27T18:00:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS: DUST STORM WARNING til 6:00 PM MST. Be ready for a sudden drop to zero visibility.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: DUST STORM WARNING for this area until 6:00 PM MST. Be ready for sudden drop to zero visibility. Pull Aside, Stay Alive! When visibility drops, pull far off the road and put your vehicle in park. Turn the lights off and keep your foot off the brake. Infants, the elderly and those with respiratory issues urged to take precautions.</value></parameter><area><areaDesc>Pima, AZ</areaDesc><polygon>32.17,-110.85 32.01,-110.97 32.03,-111.13 32.12,-111.24 32.33,-111.08 32.31,-110.93 32.17,-110.85</polygon><geocode><valueName>SAME</valueName><value>004019</value></geocode><geocode><valueName>UGC</valueName><value>AZC019</value></geocode></area></info><info><language>es-US</language><category>Met</category><event>Dust Storm Warning</event><responseType>Avoid</responseType><urgency>Expected</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>DSW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>DSW</value></eventCode><effective>2026-08-27T17:35:00-07:00</effective><onset>2026-08-27T17:35:00-07:00</onset><expires>2026-08-27T18:00:00-07:00</expires><senderName>NWS Tucson AZ</senderName><headline>Dust Storm Warning issued August 27 at 5:35PM MST until August 27 at 6:00PM MST by NWS Tucson AZ</headline><description>The National Weather Service in Tucson has issued a

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

* Until 600 PM MST.

* At 535 PM MST, several bands of blowing dust were located along a
line from near Pascua Pueblo Yaqui Reservation to near South Tucson
and western Tucson, moving northwest at 20 mph.

HAZARD...Less than a quarter mile visibility with strong winds in
excess of 50 mph.

SOURCE...Radar indicated.

IMPACT...Dangerous life-threatening travel.

* Locations impacted include...
Tucson, Davis-Monthan Air Force Base, Casas Adobes, Drexel Heights,
Flowing Wells, South Tucson, Pascua Pueblo Yaqui Reservation, San
Xavier Community, Valencia West, Tucson Mountain Park, Tucson
International Airport, Tucson Estates, Summit, Saguaro National
Park West, Catalina Foothills, San Xavier Mission and Ryan
AirField.

This includes the following highways...
Interstate 19 between mile markers 51 and 63. Route 86 between mile
markers 156 and 171. Route 77 between mile markers 70 and 73.
Interstate 10 between mile markers 250 and 267.
</description><instruction>Motorists should not drive into a dust storm. PULL ASIDE STAY ALIVE!</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>DSWTWC</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WWUS55 KTWC 280035</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-08-28T00:35:00Z...storm...128DEG...10KT...32.05,-111.13 32.25,-110.94</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>EAS</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>NWEM</value></parameter><parameter><valueName>EAS-ORG</valueName><value>WXR</value></parameter><parameter><valueName>VTEC</valueName><value>/O.NEW.KTWC.DS.W.0026.260828T0035Z-260828T0100Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-27T18:00:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM: AVISO DE TORMENTA DE POLVO hasta las 6:00 PM MST. Espere reduccion de visibilidad.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>AVISO DE TORMENTA DE POLVO hasta las 6:00 PM MST. Estar alerta para una reduccion repentina en visibilidad. Cuando la visibilidad disminuya, mueva su vehiculo fuera de la carretera. Apague las luces y mantenga su pie fuera del freno. Se recomienda enfaticamente el tomar precauciones para los infantes, ancianos y personas con problemas respiratorios.</value></parameter><area><areaDesc>Pima, AZ</areaDesc><polygon>32.17,-110.85 32.01,-110.97 32.03,-111.13 32.12,-111.24 32.33,-111.08 32.31,-110.93 32.17,-110.85</polygon><geocode><valueName>SAME</valueName><value>004019</value></geocode><geocode><valueName>UGC</valueName><value>AZC019</value></geocode></area></info><Signature xmlns="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="http://gov.fema.ipaws.services/IPAWS_CAPService/" xmlns:ns2="urn:oasis:names:tc:emergency:cap:1.2" xmlns:ns4="http://gov.fema.ipaws.services/capresponse" xmlns:ns3="http://gov.fema.ipaws.services/caprequest"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>shGGFdxJJLCe0ZxCnoOzEqSn93FzfO8JHfnXF7SBA5E=</DigestValue></Reference></SignedInfo><SignatureValue>YlT8AKfbQSX2SOGYQTQu2MFr0twUlwczAUxyhumRVHV1l1iMaHAT0xNiIe7X40f8QpBL4RrfnL4m&#13;
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