151 WUUS53 KBIS 120306 SVRBIS NDC059-120330- /O.NEW.KBIS.SV.W.0274.260812T0306Z-260812T0330Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Bismarck ND 1006 PM CDT Tue Aug 11 2026 The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... East Central Morton County in south central North Dakota... * Until 1030 PM CDT. * At 1006 PM CDT, a severe thunderstorm was located 9 miles west of St. Anthony, or 18 miles southwest of Mandan, moving southeast at 10 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... St. Anthony. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail and damaging winds. && LAT...LON 4663 10130 4667 10077 4654 10069 4646 10087 4652 10130 TIME...MOT...LOC 0305Z 311DEG 8KT 4661 10111 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Adam 817 WUUS53 KIND 120313 SVRIND INC059-081-097-145-120345- /O.NEW.KIND.SV.W.0301.260812T0313Z-260812T0345Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Indianapolis IN 1113 PM EDT Tue Aug 11 2026 The National Weather Service in Indianapolis has issued a * Severe Thunderstorm Warning for... Shelby County in central Indiana... Southern Hancock County in central Indiana... Northeastern Johnson County in central Indiana... Southeastern Marion County in central Indiana... * Until 1145 PM EDT. * At 1113 PM EDT, a severe thunderstorm was located 8 miles southeast of Beech Grove, or 12 miles northwest of Shelbyville, moving east at 35 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Indianapolis, Shelbyville, New Palestine, Morristown, Fairland, Waldron, and Boggstown. This includes Interstate 74 between mile markers 97 and 121. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3956 8604 3970 8603 3978 8565 3939 8566 TIME...MOT...LOC 0313Z 274DEG 29KT 3965 8596 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ KF 883 WUUS55 KTWC 120318 SVRTWC AZC003-120400- /O.NEW.KTWC.SV.W.0183.260812T0318Z-260812T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Tucson AZ 818 PM MST Tue Aug 11 2026 The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southwestern Cochise County in southeastern Arizona... * Until 900 PM MST. * At 818 PM MST, a severe thunderstorm was located 6 miles northeast of Hereford, moving northwest at 10 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... Sierra Vista, Hereford, Fort Huachuca, Palominas, Charleston and Ramsey Canyon Preserve. This includes the following highways... Route 90 between mile markers 318 and 336. Route 80 between mile markers 324 and 339. Route 92 between mile markers 322 and 348. Route 82 between mile markers 62 and 63. 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. Continuous cloud to ground lightning is occurring with this storm. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3154 10991 3133 10999 3133 11007 3141 11045 3174 11017 TIME...MOT...LOC 0318Z 128DEG 9KT 3147 11008 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ KJS 474 WUUS53 KBIS 120320 SVRBIS NDC015-029-059-120415- /O.NEW.KBIS.SV.W.0275.260812T0320Z-260812T0415Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Bismarck ND 1020 PM CDT Tue Aug 11 2026 The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... Southwestern Burleigh County in south central North Dakota... Northwestern Emmons County in south central North Dakota... Northeastern Morton County in south central North Dakota... * Until 1115 PM CDT. * At 1020 PM CDT, a severe thunderstorm was located 7 miles north of St. Anthony, or 8 miles southwest of Bismarck, moving east at 25 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Bismarck, Mandan, Lincoln, Menoken, St. Anthony, University Of Mary, Fort Abraham Lincoln State Park, Mcdowell Dam Recreation Area, Huff, Double Ditch Indian Village, Stumpf State Natural Area and Crown Butte Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing widespread damaging winds and large hail. && LAT...LON 4652 10111 4689 10125 4701 10057 4678 10039 4654 10031 TIME...MOT...LOC 0320Z 258DEG 20KT 4671 10087 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Adam 854 WUUS52 KGSP 120321 SVRGSP NCC075-113-173-120415- /O.NEW.KGSP.SV.W.0226.260812T0321Z-260812T0415Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Greenville-Spartanburg SC 1121 PM EDT Tue Aug 11 2026 The National Weather Service in Greenville-Spartanburg has issued a * Severe Thunderstorm Warning for... Macon County in western North Carolina... South central Swain County in western North Carolina... Eastern Graham County in western North Carolina... * Until 1215 AM EDT. * At 1121 PM EDT, a severe thunderstorm was located 7 miles southwest of Bryson City, moving south at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vehicles is expected. Expect wind damage to trees and power lines. * Locations impacted include... Franklin, Bryson City, Nantahala Lake, Wesser, Stecoah, Burningtown, Kyle, Otto, Rainbow Springs, and Nantahala. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Please report damaging winds, hail, or flooding to the National Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by posting on our Facebook page, or post it to X using hashtag nwsgsp. Your message should describe the event and the specific location where it occurred. && LAT...LON 3518 8373 3519 8371 3521 8373 3523 8369 3526 8372 3545 8368 3546 8346 3507 8326 3501 8350 3504 8356 3507 8357 3511 8362 3513 8362 3512 8364 3514 8364 3514 8365 3515 8365 3515 8373 3516 8374 TIME...MOT...LOC 0321Z 357DEG 18KT 3538 8357 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ JPT 687 WUUS53 KBIS 120327 SVRBIS NDC029-047-120430- /O.NEW.KBIS.SV.W.0276.260812T0327Z-260812T0430Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Bismarck ND 1027 PM CDT Tue Aug 11 2026 The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... Northeastern Emmons County in south central North Dakota... West Central Logan County in southeastern North Dakota... * Until 1130 PM CDT. * At 1027 PM CDT, a severe thunderstorm was located over Hazelton, or 18 miles north of Linton, moving east at 10 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Hazelton, Braddock and Kintyre. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && LAT...LON 4644 10036 4663 10037 4663 9991 4634 9990 TIME...MOT...LOC 0327Z 258DEG 8KT 4652 10029 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Adam 292 WUUS53 KUNR 120338 SVRUNR SDC007-071-095-120445- /O.NEW.KUNR.SV.W.0270.260812T0338Z-260812T0445Z/ BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 938 PM MDT Tue Aug 11 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... West Central Mellette County in south central South Dakota... North Central Bennett County in southwestern South Dakota... Central Jackson County in southwestern South Dakota... * Until 1045 PM MDT /1145 PM CDT/. * At 938 PM MDT /1038 PM CDT/, a severe thunderstorm was located 6 miles east of Cedar Pass, or 17 miles west of Kadoka, moving southeast at 30 mph. THIS IS A DESTRUCTIVE STORM FOR KADOKA, WANBLEE. HAZARD...90 mph wind gusts and half dollar size hail. SOURCE...Automated observations. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be heavily damaged or destroyed. Homes and businesses will have substantial roof and window damage. Expect extensive tree damage and power outages. * Locations impacted include... Kadoka, Wanblee, Long Valley, Interior, George Town, Hisle, Cactus Flat, Cedar Pass, Intersection of Highway 73 and White River, Eagle Nest Butte and northeastern Pine Ridge Reservation. This includes Interstate 90 in South Dakota between Mile Markers 132 and 152. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm has produced widespread destructive winds and is capable of producing large hail. This is a dangerous situation with winds expected to produce damage similar to a tornado. Move to an interior room on the lowest floor of a well-built structure. Mobile homes and high profile vehicles are at an enhanced risk for damage. && LAT...LON 4376 10202 4393 10177 4385 10147 4363 10109 4331 10168 4370 10203 4371 10203 4371 10202 TIME...MOT...LOC 0337Z 317DEG 28KT 4374 10183 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...OBSERVED MAX WIND GUST...90 MPH $$ SE 359 WUUS53 KGRB 120343 SVRGRB WIC073-120445- /O.NEW.KGRB.SV.W.0128.260812T0343Z-260812T0445Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Green Bay WI 1043 PM CDT Tue Aug 11 2026 The National Weather Service in Green Bay has issued a * Severe Thunderstorm Warning for... Western Marathon County in central Wisconsin... * Until 1145 PM CDT. * At 1043 PM CDT, a severe thunderstorm was located 8 miles east of Abbotsford, or 24 miles west of Wausau, moving southeast at 10 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Abbotsford around 1045 PM CDT. Other locations impacted by the severe thunderstorm include Cherokee, Milan, Edgar, March Rapids, Fenwood, Stratford and Rozellville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && LAT...LON 4494 9030 4503 9003 4479 8981 4469 9022 4469 9024 TIME...MOT...LOC 0342Z 333DEG 10KT 4493 9014 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ JLA 266 WUUS53 KUNR 120344 SVRUNR SDC105-137-120445- /O.NEW.KUNR.SV.W.0271.260812T0344Z-260812T0445Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 944 PM MDT Tue Aug 11 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... East Central Perkins County in northwestern South Dakota... Northwestern Ziebach County in west central South Dakota... * Until 1045 PM MDT. * At 944 PM MDT, a severe thunderstorm was located 7 miles northeast of Meadow, or 24 miles south of Lemmon, moving southeast at 20 mph. HAZARD...Golf ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. * Locations impacted include... Meadow and Glad Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail. && LAT...LON 4559 10230 4570 10218 4565 10200 4547 10200 4547 10169 4529 10192 TIME...MOT...LOC 0344Z 304DEG 18KT 4560 10210 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ SE 955 WUUS53 KABR 120348 SVRABR SDC031-120430- /O.NEW.KABR.SV.W.0205.260812T0348Z-260812T0430Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Aberdeen SD 1048 PM CDT Tue Aug 11 2026 The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Southwestern Corson County in north central South Dakota... * Until 1030 PM MDT. * At 948 PM MDT, a severe thunderstorm was located 12 miles west of Shambo Ranch, or 49 miles northwest of Lantry, moving southeast at 20 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will remain over mainly rural areas of Southwestern Corson County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail and damaging winds. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Aberdeen SD. && LAT...LON 4564 10200 4548 10168 4547 10169 4547 10200 TIME...MOT...LOC 0348Z 318DEG 17KT 4556 10209 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ TMT 100 WUUS53 KBIS 120348 SVRBIS NDC015-043-047-120445- /O.NEW.KBIS.SV.W.0277.260812T0348Z-260812T0445Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Bismarck ND 1048 PM CDT Tue Aug 11 2026 The National Weather Service in Bismarck has issued a * Severe Thunderstorm Warning for... Southeastern Burleigh County in south central North Dakota... Southwestern Kidder County in south central North Dakota... Northwestern Logan County in southeastern North Dakota... * Until 1145 PM CDT. * At 1048 PM CDT, a severe thunderstorm was located near Braddock, or 26 miles north of Linton, moving northeast at 20 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Lake Isabel. 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. && LAT...LON 4663 10021 4671 10024 4687 9978 4673 9964 4654 9962 4655 9992 4663 9992 TIME...MOT...LOC 0348Z 247DEG 18KT 4663 10010 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Adam 765 WUUS53 KUNR 120349 SVRUNR SDC055-071-095-120445- /O.NEW.KUNR.SV.W.0272.260812T0349Z-260812T0445Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 949 PM MDT Tue Aug 11 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Northwestern Mellette County in south central South Dakota... Northeastern Jackson County in southwestern South Dakota... Southeastern Haakon County in west central South Dakota... * Until 1045 PM MDT /1145 PM CDT/. * At 949 PM MDT /1049 PM CDT/, severe thunderstorms were located along a line from 6 miles southeast of Ottumwa to over Kadoka, or along a line from 24 miles northeast of Philip to over Kadoka, moving southeast at 30 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Automated observations. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Philip, Kadoka, Midland, Belvidere, Ottumwa and Nowlin. This includes Interstate 90 in South Dakota between Mile Markers 147 and 174. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. These storms have produced widespread damaging winds and are capable of producing large hail. && LAT...LON 4393 10179 4437 10139 4429 10117 4417 10117 4417 10105 4400 10105 4399 10106 4384 10106 4386 10105 4386 10103 4384 10103 4385 10099 4383 10098 4384 10096 4382 10097 4382 10096 4381 10096 4383 10094 4382 10092 4361 10111 TIME...MOT...LOC 0348Z 303DEG 25KT 4420 10124 4398 10141 4383 10155 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ SE 550 WUUS53 KUNR 120353 SVRUNR SDC007-071-102-103-120500- /O.NEW.KUNR.SV.W.0273.260812T0353Z-260812T0500Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 953 PM MDT Tue Aug 11 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Northwestern Bennett County in southwestern South Dakota... Southwestern Jackson County in southwestern South Dakota... Northeastern Oglala Lakota County in southwestern South Dakota... Southeastern Pennington County in west central South Dakota... * Until 1100 PM MDT. * At 953 PM MDT, a severe thunderstorm was located 7 miles northwest of Potato Creek, or 31 miles southwest of Kadoka, moving southeast at 30 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Potato Creek, Hisle, Snake Butte and eastern Pine Ridge Reservation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail and damaging winds. && LAT...LON 4365 10233 4378 10206 4332 10157 4325 10188 TIME...MOT...LOC 0352Z 312DEG 26KT 4363 10207 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ SE 610 WUUS53 KIND 120355 SVRIND INC059-139-145-120430- /O.NEW.KIND.SV.W.0302.260812T0355Z-260812T0430Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Indianapolis IN 1155 PM EDT Tue Aug 11 2026 The National Weather Service in Indianapolis has issued a * Severe Thunderstorm Warning for... Northern Shelby County in central Indiana... South central Hancock County in central Indiana... West central Rush County in central Indiana... * Until 1230 AM EDT. * At 1155 PM EDT, a severe thunderstorm was located 8 miles south of Greenfield, or 10 miles north of Shelbyville, moving southeast at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Shelbyville, New Palestine, Morristown, Arlington, and Manilla. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3966 8592 3974 8588 3969 8551 3947 8565 TIME...MOT...LOC 0355Z 295DEG 27KT 3968 8582 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ KF