<alert><identifier>urn:oid:2.49.0.1.840.0.69fe356f3db47d1c2b1a7f2000af2d47c5ec8f1e.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-08-23T17:40:00-07:00</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>2026-08-23T17:40:00-07:00</effective><onset>2026-08-23T17:40:00-07:00</onset><expires>2026-08-23T18:45:00-07:00</expires><senderName>NWS Tucson AZ</senderName><headline>Dust Storm Warning issued August 23 at 5:40PM MST until August 23 at 6:45PM MST by NWS Tucson AZ</headline><description>The National Weather Service in Tucson has issued a

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

* Until 645 PM MST.

* At 540 PM MST, a wall of blowing dust was located along a line from
13 miles north of Arivaca to near Three Points, moving west at 10
mph.

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

SOURCE...Detected by National Weather Service meteorologists.

IMPACT...Dangerous life-threatening travel.

* Locations impacted include...
Sells, Three Points, Topawa, San Isidro, Kitt Peak, Ali Chukson,
South Komelik, Fresnal, San Pedro, Choulic, Queens Well,
Coldfields, South Comobabi, Comobabi, Santa Rosa Ranch, Fresnal
Canyon, Artesia, Pan Tak and Ali Molina.

This includes the following highways...
Route 86 between mile markers 113 and 159. Route 286 between mile
markers 12 and 45.
</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 240040</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.0025.260824T0040Z-260824T0145Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-23T18:45:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS: DUST STORM WARNING til 6:45 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 6:45 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>32.13,-111.17 31.91,-111.24 31.65,-111.22 31.63,-111.79 31.94,-111.91 32.35,-111.61 32.13,-111.17</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>2026-08-23T17:40:00-07:00</effective><onset>2026-08-23T17:40:00-07:00</onset><expires>2026-08-23T18:45:00-07:00</expires><senderName>NWS Tucson AZ</senderName><headline>Dust Storm Warning issued August 23 at 5:40PM MST until August 23 at 6:45PM MST by NWS Tucson AZ</headline><description>The National Weather Service in Tucson has issued a

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

* Until 645 PM MST.

* At 540 PM MST, a wall of blowing dust was located along a line from
13 miles north of Arivaca to near Three Points, moving west at 10
mph.

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

SOURCE...Detected by National Weather Service meteorologists.

IMPACT...Dangerous life-threatening travel.

* Locations impacted include...
Sells, Three Points, Topawa, San Isidro, Kitt Peak, Ali Chukson,
South Komelik, Fresnal, San Pedro, Choulic, Queens Well,
Coldfields, South Comobabi, Comobabi, Santa Rosa Ranch, Fresnal
Canyon, Artesia, Pan Tak and Ali Molina.

This includes the following highways...
Route 86 between mile markers 113 and 159. Route 286 between mile
markers 12 and 45.
</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 240040</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.0025.260824T0040Z-260824T0145Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-23T18:45:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM: AVISO DE TORMENTA DE POLVO hasta las 6:45 PM MST. Espere reduccion de visibilidad.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>AVISO DE TORMENTA DE POLVO hasta las 6:45 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>32.13,-111.17 31.91,-111.24 31.65,-111.22 31.63,-111.79 31.94,-111.91 32.35,-111.61 32.13,-111.17</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>rJp2og1yADWYeZDbQ5kaSUiLlxVO4fVPqVk+i4U+pag=</DigestValue></Reference></SignedInfo><SignatureValue>KtCnx4kKR7Ckm4wrlbAusBa6t7Qq3hEAOsT5gYdk6y311lkWnKekAKxBU6Fyl6H96NJw14jg4+pA&#13;
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