818 WWUS55 KBOU 080100 SVSBOU Severe Weather Statement National Weather Service Denver CO 700 PM MDT Mon Sep 7 2026 COC087-123-080130- /O.CON.KBOU.SV.W.0389.000000T0000Z-260908T0130Z/ Morgan CO-Weld CO- 700 PM MDT Mon Sep 7 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM MDT FOR WEST CENTRAL MORGAN AND SOUTH CENTRAL WELD COUNTIES... At 700 PM MDT, a severe thunderstorm was located near Roggen, or 27 miles southeast of Greeley, moving east at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Wiggins, Riverside Reservoir, Roggen and Masters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Heavy rain is occurring with this storm and may lead to flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4013 10447 4020 10452 4044 10427 4020 10405 TIME...MOT...LOC 0043Z 248DEG 26KT 4015 10449 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ MV 100 WWUS55 KBOU 080111 SVSBOU Severe Weather Statement National Weather Service Denver CO 711 PM MDT Mon Sep 7 2026 COC087-123-080121- /O.CAN.KBOU.SV.W.0389.000000T0000Z-260908T0130Z/ Morgan CO-Weld CO- 711 PM MDT Mon Sep 7 2026 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR WEST CENTRAL MORGAN AND SOUTH CENTRAL WELD COUNTIES... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning has been cancelled. && LAT...LON 4013 10447 4020 10452 4044 10427 4020 10405 TIME...MOT...LOC 0100Z 248DEG 26KT 4019 10434 $$ MV 878 WWUS53 KFSD 080115 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 815 PM CDT Mon Sep 7 2026 SDC023-080124- /O.EXP.KFSD.TO.W.0039.000000T0000Z-260908T0115Z/ Charles Mix SD- 815 PM CDT Mon Sep 7 2026 ...THE TORNADO WARNING FOR SOUTHEASTERN CHARLES MIX COUNTY WILL EXPIRE AT 815 PM CDT... The storm which prompted the warning has weakened below severe limits, and no longer appears capable of producing a tornado. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 200 AM CDT for south central South Dakota. Remember, a Severe Thunderstorm Warning still remains in effect for southern Charles Mix county. && LAT...LON 4296 9848 4304 9853 4315 9841 4308 9827 4301 9816 4291 9837 TIME...MOT...LOC 0114Z 236DEG 17KT 4308 9828 $$ AP 497 WWUS53 KFSD 080139 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 839 PM CDT Mon Sep 7 2026 SDC009-023-080200- /O.CON.KFSD.SV.W.0278.000000T0000Z-260908T0200Z/ Charles Mix SD-Bon Homme SD- 839 PM CDT Mon Sep 7 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR SOUTHEASTERN CHARLES MIX AND WEST CENTRAL BON HOMME COUNTIES... At 839 PM CDT, a severe thunderstorm was located near Avon, or 10 miles northwest of Tyndall, moving northeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe thunderstorm will remain over mainly rural areas of southeastern Charles Mix and west central Bon Homme Counties, including the following locations... southeastern Yankton Sioux Tribal Nation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4288 9821 4294 9825 4299 9836 4312 9814 4290 9799 TIME...MOT...LOC 0139Z 244DEG 30KT 4305 9805 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ AP 513 WWUS53 KFSD 080145 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 845 PM CDT Mon Sep 7 2026 SDC023-080154- /O.CAN.KFSD.TO.W.0040.000000T0000Z-260908T0200Z/ Charles Mix SD- 845 PM CDT Mon Sep 7 2026 ...THE TORNADO WARNING FOR SOUTHEASTERN CHARLES MIX COUNTY IS CANCELLED... The tornadic thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 AM CDT for south central and southeastern South Dakota. && LAT...LON 4290 9808 4295 9811 4297 9809 4301 9797 4301 9795 4294 9791 4289 9790 TIME...MOT...LOC 0144Z 244DEG 12KT 4294 9806 $$ SDC009-080200- /O.CON.KFSD.TO.W.0040.000000T0000Z-260908T0200Z/ Bon Homme SD- 845 PM CDT Mon Sep 7 2026 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR WEST CENTRAL BON HOMME COUNTY... At 844 PM CDT, a severe thunderstorm capable of producing a tornado was located near Avon, or 10 miles west of Tyndall, moving northeast at 15 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. This tornadic thunderstorm will remain over mainly rural areas of west central Bon Homme County. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. && LAT...LON 4290 9808 4295 9811 4297 9809 4301 9797 4301 9795 4294 9791 4289 9790 TIME...MOT...LOC 0144Z 244DEG 12KT 4294 9806 TORNADO...RADAR INDICATED MAX HAIL SIZE...1.00 IN $$ AP 122 WWUS53 KFSD 080154 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 854 PM CDT Mon Sep 7 2026 SDC009-023-080204- /O.EXP.KFSD.SV.W.0278.000000T0000Z-260908T0200Z/ Charles Mix SD-Bon Homme SD- 854 PM CDT Mon Sep 7 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHARLES MIX AND WEST CENTRAL BON HOMME COUNTIES WILL EXPIRE AT 900 PM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 200 AM CDT for south central and southeastern South Dakota. && LAT...LON 4288 9821 4294 9825 4299 9836 4312 9814 4290 9799 TIME...MOT...LOC 0154Z 244DEG 30KT 4310 9792 $$ AP 906 WWUS53 KFSD 080156 SVSFSD Severe Weather Statement National Weather Service Sioux Falls SD 856 PM CDT Mon Sep 7 2026 SDC009-080205- /O.EXP.KFSD.TO.W.0040.000000T0000Z-260908T0200Z/ Bon Homme SD- 856 PM CDT Mon Sep 7 2026 ...THE TORNADO WARNING FOR WEST CENTRAL BON HOMME COUNTY WILL EXPIRE AT 900 PM CDT... The storm which prompted the warning has weakened below severe limits, and no longer appears capable of producing a tornado. Therefore, the warning will be allowed to expire. However, gusty winds are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 200 AM CDT for south central and southeastern South Dakota. Remember, a Severe Thunderstorm Warning still remains in effect for Bon Homme and southern Hutchinson counties. && LAT...LON 4290 9808 4295 9811 4297 9809 4301 9797 4301 9795 4294 9791 4289 9790 TIME...MOT...LOC 0155Z 257DEG 28KT 4296 9796 $$ AP