685 WWUS53 KABR 300504 SVSABR Severe Weather Statement National Weather Service Aberdeen SD 1204 AM CDT Sun Aug 30 2026 SDC041-300514- /O.EXP.KABR.SV.W.0254.000000T0000Z-260830T0500Z/ Dewey SD- 1104 PM MDT Sat Aug 29 2026 ...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR SOUTH CENTRAL DEWEY COUNTY... The Severe Thunderstorm Warning that was previously in effect has been reissued for Dewey County and is in effect until 1145 PM MDT. Please refer to that bulletin for the latest severe weather information. && LAT...LON 4490 10084 4506 10080 4507 10068 4489 10063 TIME...MOT...LOC 0454Z 267DEG 22KT 4499 10064 $$ 07  941 WWUS53 KABR 300506 SVSABR Severe Weather Statement National Weather Service Aberdeen SD 1206 AM CDT Sun Aug 30 2026 SDC041-107-119-300545- /O.CON.KABR.SV.W.0255.000000T0000Z-260830T0545Z/ Dewey SD-Potter SD-Sully SD- 1206 AM CDT Sun Aug 30 2026 /1106 PM MDT Sat Aug 29 2026/ ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT /1145 PM MDT/ FOR NORTH CENTRAL SULLY, SOUTHEASTERN DEWEY AND SOUTHWESTERN POTTER COUNTIES... At 1206 AM CDT /1106 PM MDT/, a severe thunderstorm was located 9 miles southwest of Swiftbird Day School, or 29 miles west of Gettysburg, moving east at 25 mph. THIS IS A DESTRUCTIVE STORM FOR SOUTHEAST DEWEY COUNTY MOVING INTO WESTERN POTTER COUNTY AND THE VERY NORTHWEST CORNER OF SULLY COUNTY. HAZARD...Three inch hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. This severe thunderstorm will be near... Swiftbird Day School around 1225 AM CDT. Swiftbird around 1230 AM CDT. Whitlocks Bay Rec Area around 1240 AM CDT. Other locations impacted by the severe thunderstorm include Lake Oahe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm is capable of producing destructive hail and damaging winds. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Aberdeen SD. && LAT...LON 4490 10071 4507 10068 4511 10017 4480 10020 TIME...MOT...LOC 0445Z 262DEG 20KT 4498 10071 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...3.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ 07  640 WWUS53 KABR 300518 SVSABR Severe Weather Statement National Weather Service Aberdeen SD 1218 AM CDT Sun Aug 30 2026 SDC041-107-119-300545- /O.CON.KABR.SV.W.0255.000000T0000Z-260830T0545Z/ Dewey SD-Potter SD-Sully SD- 1218 AM CDT Sun Aug 30 2026 /1118 PM MDT Sat Aug 29 2026/ ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT /1145 PM MDT/ FOR NORTH CENTRAL SULLY, EAST CENTRAL DEWEY AND SOUTHWESTERN POTTER COUNTIES... At 1218 AM CDT /1118 PM MDT/, a severe thunderstorm was located 6 miles south of Swiftbird Day School, or 24 miles west of Gettysburg, moving east at 25 mph. THIS IS A DESTRUCTIVE STORM FOR SOUTHEAST DEWEY COUNTY MOVING INTO WESTERN POTTER COUNTY AND THE VERY NORTHWEST CORNER OF SULLY COUNTY. HAZARD...Three inch 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. This severe thunderstorm will be near... Swiftbird Day School around 1225 AM CDT. Swiftbird around 1230 AM CDT. Whitlocks Bay Rec Area around 1240 AM CDT. Other locations impacted by the severe thunderstorm include Lake Oahe. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Aberdeen SD. && LAT...LON 4488 10049 4502 10058 4508 10054 4511 10017 4486 10019 TIME...MOT...LOC 0506Z 262DEG 20KT 4499 10054 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...3.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ 07  107 WGUS55 KTWC 300527 FFWTWC AZC009-021-300745- /O.EXT.KTWC.FF.W.0165.000000T0000Z-260830T0745Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Tucson AZ 1027 PM MST Sat Aug 29 2026 The National Weather Service in Tucson has extended the * Flash Flood Warning for... Western Graham County in southeastern Arizona... East Central Pinal County in southeastern Arizona... * Until 1245 AM MST. * At 1027 PM MST, Doppler radar and automated rain gauges indicated thunderstorms produced heavy rain across the warned area. Between 1 and 3 inches of rain have fallen in the Aravaipa Watershed. Flooding impacts will continue, but no additional rainfall is expected. A stream gauge in the Aravaipa Canyon showed a rapid 6 foot rise and this flood wave is moving downstream. Hikers and campers should move away from the creek now. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Aravaipa Canyon Wilderness. This includes the following streams and drainages... Deer Creek, Telegraph Wash and Aravaipa Creek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. Remain alert for flooding even in locations not receiving rain. Washes, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. && LAT...LON 3304 11052 3295 11039 3290 11047 3290 11055 3286 11057 3283 11065 3285 11071 3287 11064 3291 11059 3298 11063 3299 11062 3304 11061 3304 11062 3303 11064 3307 11060 3305 11054 FLASH FLOOD...RADAR AND GAUGE INDICATED $$ JRM  569 WGUS75 KTWC 300527 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 1027 PM MST Sat Aug 29 2026 AZC021-300537- /O.EXP.KTWC.FF.W.0169.000000T0000Z-260830T0530Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pinal AZ- 1027 PM MST Sat Aug 29 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 1030 PM MST THIS EVENING FOR NORTHEASTERN PINAL COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 500 AM MST Monday for a portion of Southeast Arizona. && LAT...LON 3311 11061 3308 11062 3307 11060 3299 11066 3297 11070 3294 11071 3288 11069 3283 11072 3292 11075 3294 11080 3293 11093 3305 11095 3307 11098 3312 11086 3298 11078 3304 11072 3308 11072 3308 11069 3311 11068 3314 11063 $$ JRM  983 WGUS75 KTWC 300527 RRA FFSTWC Flash Flood Statement National Weather Service Tucson AZ 1027 PM MST Sat Aug 29 2026 AZC019-300537- /O.EXP.KTWC.FF.W.0168.000000T0000Z-260830T0530Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pima AZ- 1027 PM MST Sat Aug 29 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 1030 PM MST THIS EVENING FOR EASTERN PIMA COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 500 AM MST Monday for a portion of Southeast Arizona. && LAT...LON 3199 11145 3197 11151 3199 11159 3201 11161 3207 11160 3216 11151 3224 11151 3220 11149 3219 11148 3211 11146 3209 11141 3207 11141 $$ JRM  740 WGUS75 KTWC 300536 FFSTWC Flash Flood Statement National Weather Service Tucson AZ 1036 PM MST Sat Aug 29 2026 AZC019-300546- /O.EXP.KTWC.FF.W.0164.000000T0000Z-260830T0545Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Pima AZ- 1036 PM MST Sat Aug 29 2026 ...FLASH FLOOD WARNING WILL EXPIRE AT 1045 PM MST THIS EVENING FOR SOUTH CENTRAL PIMA COUNTY... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 500 AM MST Monday for a portion of Southeast Arizona. && LAT...LON 3157 11182 3167 11178 3176 11180 3182 11184 3185 11170 3193 11160 3190 11156 3187 11139 3184 11140 3182 11151 3169 11161 3160 11161 3152 11165 $$ JRM  966 WUUS53 KABR 300539 SVRABR SDC041-107-119-300645- /O.NEW.KABR.SV.W.0256.260830T0539Z-260830T0645Z/ BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Aberdeen SD 1239 AM CDT Sun Aug 30 2026 The National Weather Service in Aberdeen has issued a * Severe Thunderstorm Warning for... Northeastern Sully County in central South Dakota... East Central Dewey County in north central South Dakota... Potter County in north central South Dakota... * Until 145 AM CDT /1245 AM MDT/. * At 1239 AM CDT /1139 PM MDT/, a severe thunderstorm was located over Whitlocks Bay Rec Area, or 13 miles west of Gettysburg, moving east at 25 mph. THIS IS A DESTRUCTIVE STORM FOR SOUTHEAST POTTER COUNTY. HAZARD...Three inch hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. * This severe thunderstorm will be near... Whitlocks Bay Rec Area and Swiftbird around 1240 AM CDT. Gorman around 1250 AM CDT. Gettysburg around 110 AM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter now inside an interior room on the lowest floor of a well-built structure. This storm is capable of producing destructive hail and damaging winds. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Aberdeen SD. && LAT...LON 4503 10038 4511 10040 4521 9994 4520 9957 4490 9957 4490 9967 4484 9967 4487 10034 TIME...MOT...LOC 0539Z 259DEG 22KT 4502 10022 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...3.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ 07  619 WWUS53 KABR 300540 SVSABR Severe Weather Statement National Weather Service Aberdeen SD 1240 AM CDT Sun Aug 30 2026 SDC041-107-119-300550- /O.EXP.KABR.SV.W.0255.000000T0000Z-260830T0545Z/ Dewey SD-Potter SD-Sully SD- 1240 AM CDT Sun Aug 30 2026 /1140 PM MDT Sat Aug 29 2026/ ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 1245 AM CDT /1145 PM MDT/ FOR NORTH CENTRAL SULLY, EAST CENTRAL DEWEY AND SOUTHWESTERN POTTER COUNTIES... The Severe Thunderstorm Warning that was previously in effect has been reissued for Potter, Sully, and Dewey Counties and is in effect until 145 AM CDT /1245 AM MDT/. Please refer to that bulletin for the latest severe weather information. && LAT...LON 4488 10049 4502 10058 4508 10054 4511 10017 4486 10019 TIME...MOT...LOC 0518Z 262DEG 20KT 4500 10045 $$ 07