<alert><identifier>urn:oid:2.49.0.1.840.0.5acd1c720fee3be31428acc3b13d776ea19a3716.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-04-21T11:43:00-05:00</sent><status>Actual</status><msgType>Update</msgType><scope>Public</scope><code>IPAWSv1.0</code><references>w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.96c66337fe395b7203831e01221636b42a4b6698.001.1.IPAWS,2026-04-21T08:46:00-05:00</references><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>2026-04-21T11:43:00-05:00</effective><onset>2026-04-21T11:43:00-05:00</onset><expires>2026-04-21T15:15:00-05:00</expires><senderName>NWS Austin/San Antonio TX</senderName><headline>Flash Flood Warning issued April 21 at 11:43AM CDT until April 21 at 3:15PM CDT by NWS Austin/San Antonio TX</headline><description>FFWEWX

The National Weather Service in Austin/San Antonio has extended the

* Flash Flood Warning for...
Central Williamson County in south central Texas...

* Until 315 PM CDT.

* At 1143 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 5 inches of rain have fallen. Additional rainfall amounts up
to 1 inch are possible in the warned area. Flash flooding is
already occurring.

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

SOURCE...Radar and automated gauges.

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

* Some locations that will experience flash flooding include...
Round Rock, Georgetown, Taylor, Serenada, Leander, Hutto, Liberty
Hill, Jarrell, Florence, Thrall, Weir, Georgetown Dam, Sun City,
Andice, Coupland, Jonah, Walburg, Theon, Waterloo and Seward
Junction.
</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.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWEWX</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS54 KEWX 211643</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR AND GAUGE 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.EXT.KEWX.FF.W.0011.000000T0000Z-260421T2015Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-04-21T15:15:00-05:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS: FLASH FLOOD WARNING this area til 3:15 PM CDT. Avoid flooded areas.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 3:15 PM CDT. 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>Williamson, TX</areaDesc><polygon>30.58,-97.68 30.67,-97.97 30.87,-97.8 30.61,-97.24 30.48,-97.35 30.58,-97.68</polygon><geocode><valueName>SAME</valueName><value>048491</value></geocode><geocode><valueName>UGC</valueName><value>TXC491</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>2026-04-21T11:43:00-05:00</effective><onset>2026-04-21T11:43:00-05:00</onset><expires>2026-04-21T15:15:00-05:00</expires><senderName>NWS Austin/San Antonio TX</senderName><headline>Flash Flood Warning issued April 21 at 11:43AM CDT until April 21 at 3:15PM CDT by NWS Austin/San Antonio TX</headline><description>FFWEWX

The National Weather Service in Austin/San Antonio has extended the

* Flash Flood Warning for...
Central Williamson County in south central Texas...

* Until 315 PM CDT.

* At 1143 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 5 inches of rain have fallen. Additional rainfall amounts up
to 1 inch are possible in the warned area. Flash flooding is
already occurring.

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

SOURCE...Radar and automated gauges.

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

* Some locations that will experience flash flooding include...
Round Rock, Georgetown, Taylor, Serenada, Leander, Hutto, Liberty
Hill, Jarrell, Florence, Thrall, Weir, Georgetown Dam, Sun City,
Andice, Coupland, Jonah, Walburg, Theon, Waterloo and Seward
Junction.
</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.

Stay away or be swept away. River banks and culverts can become
unstable and unsafe.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>FFWEWX</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WGUS54 KEWX 211643</value></parameter><parameter><valueName>flashFloodDetection</valueName><value>RADAR AND GAUGE 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.EXT.KEWX.FF.W.0011.000000T0000Z-260421T2015Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-04-21T15:15:00-05:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM: AVISO DE INUNDACIONES REPENTINAS hasta 3:15 PM CDT. 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 3:15 PM CDT. 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>Williamson, TX</areaDesc><polygon>30.58,-97.68 30.67,-97.97 30.87,-97.8 30.61,-97.24 30.48,-97.35 30.58,-97.68</polygon><geocode><valueName>SAME</valueName><value>048491</value></geocode><geocode><valueName>UGC</valueName><value>TXC491</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>JocI16QzG+Eo63dB5F6tA/9OL7HjSKs04dqZsyKxQcg=</DigestValue></Reference></SignedInfo><SignatureValue>TuLD/8Tlge5ghWNM3wBzClQJOghseZi2HsDAJoQiElMSr/Y2NwCH3DbxM5bYf/w5rFqANU0N1m6c&#13;
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