<alert><identifier>urn:oid:2.49.0.1.840.0.9a43d5f82546d86753d312ef713d3dfdbf85806a.001.1.IPAWS</identifier><sender>w-nws.webmaster@noaa.gov</sender><sent>2026-08-21T16:10:00-06:00</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>2026-08-21T16:10:00-06:00</effective><onset>2026-08-21T16:10:00-06:00</onset><expires>2026-08-21T17:00:00-06:00</expires><senderName>NWS Rapid City SD</senderName><headline>Severe Thunderstorm Warning issued August 21 at 4:10PM MDT until August 21 at 5:00PM MDT by NWS Rapid City SD</headline><description>At 410 PM MDT, a severe thunderstorm was located over Hay Canyon
Butte, or 19 miles southeast of Hot Springs, moving southeast at 25
mph.

THIS IS A DESTRUCTIVE STORM FOR PRAIRIE WINDS CASINO.

HAZARD...Baseball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be severely injured. Expect
shattered windows, extensive damage to roofs, siding, and
vehicles.

Locations impacted include...
Oelrichs, Smithwick, Prairie Winds Casino, Hay Canyon Butte and
Slim Butte.
</description><instruction>Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing destructive
hail and damaging winds.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>SVSUNR</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WWUS53 KUNR 212210</value></parameter><parameter><valueName>NWSheadline</valueName><value>SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR SOUTHEASTERN FALL RIVER AND SOUTHWESTERN OGLALA LAKOTA COUNTIES</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-08-21T22:03:00Z...storm...319DEG...20KT...43.29,-103.21</value></parameter><parameter><valueName>windThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxWindGust</valueName><value>60 MPH</value></parameter><parameter><valueName>hailThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxHailSize</valueName><value>2.75</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.CON.KUNR.SV.W.0312.000000T0000Z-260821T2300Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-21T17:00:00-06:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>NWS:DESTRUCTIVE HAIL STORM in this area til 500 PM MDT. Take shelter now. Check media.</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>National Weather Service: SEVERE THUNDERSTORM WARNING in effect for this area until 5:00 PM MDT for DESTRUCTIVE baseball size hail. Take shelter in a sturdy building, away from windows. People and animals outdoors will be severely injured.</value></parameter><area><areaDesc>Fall River, SD; Oglala Lakota, SD</areaDesc><polygon>43.0,-103.16 43.24,-103.38 43.32,-103.22 43.33,-103.21 43.38,-103.12 43.14,-102.74 43.0,-102.97 43.0,-103.16</polygon><geocode><valueName>SAME</valueName><value>046047</value></geocode><geocode><valueName>SAME</valueName><value>046102</value></geocode><geocode><valueName>UGC</valueName><value>SDC047</value></geocode><geocode><valueName>UGC</valueName><value>SDC102</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>2026-08-21T16:10:00-06:00</effective><onset>2026-08-21T16:10:00-06:00</onset><expires>2026-08-21T17:00:00-06:00</expires><senderName>NWS Rapid City SD</senderName><headline>Severe Thunderstorm Warning issued August 21 at 4:10PM MDT until August 21 at 5:00PM MDT by NWS Rapid City SD</headline><description>At 410 PM MDT, a severe thunderstorm was located over Hay Canyon
Butte, or 19 miles southeast of Hot Springs, moving southeast at 25
mph.

THIS IS A DESTRUCTIVE STORM FOR PRAIRIE WINDS CASINO.

HAZARD...Baseball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be severely injured. Expect
shattered windows, extensive damage to roofs, siding, and
vehicles.

Locations impacted include...
Oelrichs, Smithwick, Prairie Winds Casino, Hay Canyon Butte and
Slim Butte.
</description><instruction>Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing destructive
hail and damaging winds.</instruction><web>http://www.weather.gov</web><parameter><valueName>AWIPSidentifier</valueName><value>SVSUNR</value></parameter><parameter><valueName>WMOidentifier</valueName><value>WWUS53 KUNR 212210</value></parameter><parameter><valueName>NWSheadline</valueName><value>SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 5 PM MDT FOR SOUTHEASTERN FALL RIVER AND SOUTHWESTERN OGLALA LAKOTA COUNTIES</value></parameter><parameter><valueName>eventMotionDescription</valueName><value>2026-08-21T22:03:00Z...storm...319DEG...20KT...43.29,-103.21</value></parameter><parameter><valueName>windThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxWindGust</valueName><value>60 MPH</value></parameter><parameter><valueName>hailThreat</valueName><value>RADAR INDICATED</value></parameter><parameter><valueName>maxHailSize</valueName><value>2.75</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.CON.KUNR.SV.W.0312.000000T0000Z-260821T2300Z/</value></parameter><parameter><valueName>eventEndingTime</valueName><value>2026-08-21T17:00:00-06:00</value></parameter><parameter><valueName>WEAHandling</valueName><value>Imminent Threat</value></parameter><parameter><valueName>CMAMtext</valueName><value>SNM:TORMENTA DE GRANIZO DESTRUCTIVA en esta area hasta 500 PM MDT. 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 5:00 PM MDT por granizo DESTRUCTIVO del tamano de una pelota de beisbol. Tome refugio en un edificio, alejado de las ventanas. Las personas y los animales al aire libre seran gravemente heridos.</value></parameter><area><areaDesc>Fall River, SD; Oglala Lakota, SD</areaDesc><polygon>43.0,-103.16 43.24,-103.38 43.32,-103.22 43.33,-103.21 43.38,-103.12 43.14,-102.74 43.0,-102.97 43.0,-103.16</polygon><geocode><valueName>SAME</valueName><value>046047</value></geocode><geocode><valueName>SAME</valueName><value>046102</value></geocode><geocode><valueName>UGC</valueName><value>SDC047</value></geocode><geocode><valueName>UGC</valueName><value>SDC102</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>0k2rsrB4fH0y25vVM1ONegmSi5YvV7b1FzOX6BT+1C4=</DigestValue></Reference></SignedInfo><SignatureValue>iOIT1GzrYdR7AKBL8AkGq8qyqNb5WByvxYxyyiSNJLf/okeYK4DdJ+TUAQ/R500Rn578jB03Zvyt&#13;
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