<alert><identifier>urn:oid:2.49.0.1.840.0.f8910cbe309ce0c72b74c4bb5718f9dadb8b8738.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-09-16T16:18:00-07:00</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>Flash Flood Warning</event><responseType>Avoid</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>FFW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>FFW</value></eventCode><effective>2026-09-16T16:18:00-07:00</effective><onset>2026-09-16T16:18:00-07:00</onset><expires>2026-09-16T20:15:00-07:00</expires><senderName>NWS Phoenix AZ</senderName><headline>Flash Flood Warning issued September 16 at 4:18PM MST until September 16 at 8:15PM MST by NWS Phoenix AZ</headline><description>FFWPSR

The National Weather Service in Phoenix has issued a

* Flash Flood Warning for...
Maricopa County in south central Arizona...

* Until 815 PM MST.

* At 418 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 2 inches of rain
have fallen. Additional rainfall amounts of 0.5 to 1.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.

SOURCE...Radar indicated.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
Mainly rural areas of Maricopa County.

This includes the following streams and drainages...
Pump Mine Wash, Tiger Wash, Centennial Wash and Browns Canyon Wash.
</description><instruction>Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWPSR</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS55 KPSR 162318</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>flashFloodDamageThreat</valueName><value>CONSIDERABLE</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.KPSR.FF.W.0073.260916T2318Z-260917T0315Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-09-16T20:15:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS: FLASH FLOOD WARNING this area til 8:15 PM MST. Avoid flooded areas.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 8:15 PM MST. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.</value></parameter><area><areaDesc>Maricopa, AZ</areaDesc><polygon>33.88,-113.28 33.82,-113.33 33.64,-113.33 33.63,-113.29 33.74,-113.26 33.79,-113.17 33.87,-113.23 33.87,-113.24 33.88,-113.28</polygon><geocode><valueName>SAME</valueName><value>004013</value></geocode><geocode><valueName>UGC</valueName><value>AZC013</value></geocode></area></info><info><language>es-US</language><category>Met</category><event>Flash Flood Warning</event><responseType>Avoid</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Likely</certainty><eventCode><valueName>SAME</valueName><value>FFW</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>FFW</value></eventCode><effective>2026-09-16T16:18:00-07:00</effective><onset>2026-09-16T16:18:00-07:00</onset><expires>2026-09-16T20:15:00-07:00</expires><senderName>NWS Phoenix AZ</senderName><headline>Flash Flood Warning issued September 16 at 4:18PM MST until September 16 at 8:15PM MST by NWS Phoenix AZ</headline><description>FFWPSR

The National Weather Service in Phoenix has issued a

* Flash Flood Warning for...
Maricopa County in south central Arizona...

* Until 815 PM MST.

* At 418 PM MST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 2 inches of rain
have fallen. Additional rainfall amounts of 0.5 to 1.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.

HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.

SOURCE...Radar indicated.

IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
Mainly rural areas of Maricopa County.

This includes the following streams and drainages...
Pump Mine Wash, Tiger Wash, Centennial Wash and Browns Canyon Wash.
</description><instruction>Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWPSR</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS55 KPSR 162318</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>flashFloodDamageThreat</valueName><value>CONSIDERABLE</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.KPSR.FF.W.0073.260916T2318Z-260917T0315Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-09-16T20:15:00-07:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM: AVISO DE INUNDACIONES REPENTINAS hasta 8:15 PM MST. Evite areas inundadas.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 8:15 PM MST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.</value></parameter><area><areaDesc>Maricopa, AZ</areaDesc><polygon>33.88,-113.28 33.82,-113.33 33.64,-113.33 33.63,-113.29 33.74,-113.26 33.79,-113.17 33.87,-113.23 33.87,-113.24 33.88,-113.28</polygon><geocode><valueName>SAME</valueName><value>004013</value></geocode><geocode><valueName>UGC</valueName><value>AZC013</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>iNo10Hj++tO496JY1iOy5mF+kLvApw0vxLTmjeJ4If8=</DigestValue></Reference></SignedInfo><SignatureValue>QYhZBkYfzRMmLmsUDyLP8r6wVDCi7rW3hCp//xpTpa5ZB6bp4ycG4FzTfwA1LsRwoYsQOiSy8mXA&#13;
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