<alert><identifier>urn:oid:2.49.0.1.840.0.2e67114f47c5eb03998a23990213a3d4dafe02f8.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-09-01T20:41:00-05:00</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>Severe Thunderstorm Warning</event><responseType>Shelter</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Observed</certainty><eventCode><valueName>SAME</valueName><value>SVR</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>SVW</value></eventCode><effective>2026-09-01T20:41:00-05:00</effective><onset>2026-09-01T20:41:00-05:00</onset><expires>2026-09-01T21:30:00-05:00</expires><senderName>NWS Sioux Falls SD</senderName><headline>Severe Thunderstorm Warning issued September 1 at 8:41PM CDT until September 1 at 9:30PM CDT by NWS Sioux Falls SD</headline><description>SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
Clay County in southeastern South Dakota...
Southeastern Yankton County in southeastern South Dakota...
Northwestern Union County in southeastern South Dakota...

* Until 930 PM CDT.

* At 840 PM CDT, a severe thunderstorm was located near St. Helena,
or 12 miles southeast of Yankton, moving east at 40 mph.

THIS IS A DESTRUCTIVE STORM FOR GAYVILLE, VERMILLION, AND UNION
GROVE STATE PARK

HAZARD...80 mph wind gusts and half dollar size hail.

SOURCE...Public.

IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.

* This severe thunderstorm will be near...
Vermillion and Meckling around 850 PM CDT.
Union Grove State Park around 905 PM CDT.
</description><instruction>For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>SVRFSD</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WUUS53 KFSD 020141</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-09-02T01:40:00Z...storm...257DEG...37KT...42.81,-97.18</value></parameter><parameter><valueName>windThreat</valueName><value>OBSERVED</value></parameter><parameter><valueName>maxWindGust</valueName><value>80 MPH</value></parameter><parameter><valueName>hailThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxHailSize</valueName><value>1.25</value></parameter><parameter><valueName>thunderstormDamageThreat</valueName><value>DESTRUCTIVE</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.KFSD.SV.W.0262.260902T0141Z-260902T0230Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-09-01T21:30:00-05:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS:DESTRUCTIVE WIND STORM in this area til 930 PM CDT. Take shelter now. Check media.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: SEVERE THUNDERSTORM WARNING in effect for this area until 9:30 PM CDT for DESTRUCTIVE 80 mph winds. Take shelter in a sturdy building, away from windows. Flying debris may be deadly to those caught without shelter.</value></parameter><area><areaDesc>Clay, SD; Union, SD; Yankton, SD</areaDesc><polygon>42.76,-96.98 42.77,-97.13 42.8,-97.16 42.81,-97.21 42.85,-97.23 42.87,-97.3 42.86,-97.33 42.87,-97.34 43.07,-96.7 42.78,-96.61 42.77,-96.63 42.74,-96.96 42.76,-96.98</polygon><geocode><valueName>SAME</valueName><value>046027</value></geocode><geocode><valueName>SAME</valueName><value>046127</value></geocode><geocode><valueName>SAME</valueName><value>046135</value></geocode><geocode><valueName>UGC</valueName><value>SDC027</value></geocode><geocode><valueName>UGC</valueName><value>SDC127</value></geocode><geocode><valueName>UGC</valueName><value>SDC135</value></geocode></area></info><info><language>es-US</language><category>Met</category><event>Severe Thunderstorm Warning</event><responseType>Shelter</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Observed</certainty><eventCode><valueName>SAME</valueName><value>SVR</value></eventCode><eventCode><valueName>NationalWeatherService</valueName><value>SVW</value></eventCode><effective>2026-09-01T20:41:00-05:00</effective><onset>2026-09-01T20:41:00-05:00</onset><expires>2026-09-01T21:30:00-05:00</expires><senderName>NWS Sioux Falls SD</senderName><headline>Severe Thunderstorm Warning issued September 1 at 8:41PM CDT until September 1 at 9:30PM CDT by NWS Sioux Falls SD</headline><description>SVRFSD

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
Clay County in southeastern South Dakota...
Southeastern Yankton County in southeastern South Dakota...
Northwestern Union County in southeastern South Dakota...

* Until 930 PM CDT.

* At 840 PM CDT, a severe thunderstorm was located near St. Helena,
or 12 miles southeast of Yankton, moving east at 40 mph.

THIS IS A DESTRUCTIVE STORM FOR GAYVILLE, VERMILLION, AND UNION
GROVE STATE PARK

HAZARD...80 mph wind gusts and half dollar size hail.

SOURCE...Public.

IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.

* This severe thunderstorm will be near...
Vermillion and Meckling around 850 PM CDT.
Union Grove State Park around 905 PM CDT.
</description><instruction>For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Sioux Falls.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>SVRFSD</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WUUS53 KFSD 020141</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-09-02T01:40:00Z...storm...257DEG...37KT...42.81,-97.18</value></parameter><parameter><valueName>windThreat</valueName><value>OBSERVED</value></parameter><parameter><valueName>maxWindGust</valueName><value>80 MPH</value></parameter><parameter><valueName>hailThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxHailSize</valueName><value>1.25</value></parameter><parameter><valueName>thunderstormDamageThreat</valueName><value>DESTRUCTIVE</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.KFSD.SV.W.0262.260902T0141Z-260902T0230Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-09-01T21:30:00-05:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM:TORMENTA DE VIENTO DESTRUCTIVA en esta area hasta 930 PM CDT. Tome refugio ahora</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>Servicio Nacional de Meteorologia: AVISO DE TORMENTA SEVERA en efecto para esta area hasta las 9:30 PM CDT por vientos DESTRUCTIVOS de 80 mph. Tome refugio en un edificio, alejado de las ventanas. Escombros arrastrados por el viento podrian ser mortales para aquellos que se encuentran sin refugio.</value></parameter><area><areaDesc>Clay, SD; Union, SD; Yankton, SD</areaDesc><polygon>42.76,-96.98 42.77,-97.13 42.8,-97.16 42.81,-97.21 42.85,-97.23 42.87,-97.3 42.86,-97.33 42.87,-97.34 43.07,-96.7 42.78,-96.61 42.77,-96.63 42.74,-96.96 42.76,-96.98</polygon><geocode><valueName>SAME</valueName><value>046027</value></geocode><geocode><valueName>SAME</valueName><value>046127</value></geocode><geocode><valueName>SAME</valueName><value>046135</value></geocode><geocode><valueName>UGC</valueName><value>SDC027</value></geocode><geocode><valueName>UGC</valueName><value>SDC127</value></geocode><geocode><valueName>UGC</valueName><value>SDC135</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>Lfi6xZeZdO7W8Ghsa8Tvb3Ineo6IQqW1W+0reAR3dZ8=</DigestValue></Reference></SignedInfo><SignatureValue>GjDaOUYd9iOXI1Cun3/+8uqBBgnTjivGyplcvu5TdEo20MTzXfZK1MbKTyCT/cQ+RFCdyViNKSsT&#13;
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