Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >
Overview
During the evening of July 13, 2024, a cluster of supercells moving southeastward out of Montana merged into a line of significantly severe thunderstorms that brought destructive winds to much of western and central South Dakota. Widespread measured wind gusts of 80 mph or greater were recorded from near the Montana/South Dakota state line eastward to near the Missouri River, with the highest gusts of over 100 mph observed in Butte County. The Storm Prediction Center classified this line of storms as a "derecho", a term reserved for especially widespread, long-lived, and significant wind storms. |
Wind damage from 7 miles west of Redig, SD (courtesy Ashley Secrest) |
Wind Reports
Map of severe (58 mph or greater) wind gust reports (blue "W"s) and significant severe (74 mph or greater) wind gust reports (blue, italic "W"s) from July 13, 2024 to the morning of July 14, 2024. Strongest measured wind gusts are annotated. |
...MAXIMUM OBSERVED WINDS SORTED BY MAGNITUDE... LOCATION MAX WIND COMMENTS MPH 7 WSW Hoover SD 108 954 PM 7/13/2024 12 WSW Castle Rock SD 102 955 PM 7/13/2024 10 NNW Ottumwa SD 93 1139 PM 7/13/2024 7 E Redig SD 90 945 PM 7/13/2024 1 ENE Mud Butte SD 88 1015 PM 7/13/2024 3 N Redig SD 87 940 PM 7/13/2024 2 SW Bridger SD 85 1114 PM 7/13/2024 6 WSW Fairpoint SD 84 1025 PM 7/13/2024 9 SE Mud Butte SD 83 1030 PM 7/13/2024 3 E Philip SD 81 1150 PM 7/13/2024 Usta SD 78 1047 PM 7/13/2024 1 WSW South Eagle Butte SD 78 1150 PM 7/13/2024 8 E Prairie City SD 76 1012 PM 7/13/2024 10 W Reva SD 74 955 PM 7/13/2024 7 NNE Ralph SD 74 947 PM 7/13/2024 6 WSW Opal SD 71 1040 PM 7/13/2024 6 W Parmelee SD 71 105 AM 7/14/2024 3 ENE Midland SD 71 1215 AM 7/14/2024 13 SSW Reva SD 70 956 PM 7/13/2024 13 NE Newell SD 70 1004 PM 7/13/2024 11 W Milesville SD 70 1120 PM 7/13/2024 1 ESE Ladner SD 70 915 PM 7/13/2024 7 ESE Rosebud SD 69 105 AM 7/14/2024 1 NE Winner SD 68 245 AM 7/14/2024 2 W Hamill SD 67 120 AM 7/14/2024 Union Center SD 67 1040 PM 7/13/2024 7 S Shadehill SD 66 1025 PM 7/13/2024 3 W Union Center SD 66 1051 PM 7/13/2024 27 WNW Castle Rock SD 66 956 PM 7/13/2024 10 NNE White River SD 65 1243 AM 7/14/2024 17 SW Usta SD 65 1040 PM 7/13/2024 Wewela SD 62 139 AM 7/14/2024 7 E Wanblee SD 61 1228 AM 7/14/2024 14 WNW Lodgepole SD 61 945 PM 7/13/2024 9 ENE Belvidere SD 60 1237 AM 7/14/2024 Bison SD 60 1020 PM 7/13/2024 15 SSE Mission SD 60 119 AM 7/14/2024 4 WNW Cedar Butte SD 59 1230 AM 7/14/2024 4 E Cactus Flat SD 59 1159 PM 7/13/2024 2 E Cottonwood SD 59 1205 AM 7/14/2024 6 W Cottonwood SD 59 1155 PM 7/13/2024 1 NE Midland SD 58 1241 AM 7/14/2024 5 WNW New Underwood SD 58 1104 PM 7/13/2024 1 NNW Nisland SD 58 1015 PM 7/13/2024 3 NW Wasta SD 58 1124 PM 7/13/2024 4 SSE Witten SD 57 133 AM 7/14/2024 11 SW Parmelee SD 57 1252 AM 7/14/2024 7 E Sturgis SD 56 1040 PM 7/13/2024 1 S White River SD 55 1235 AM 7/14/2024
Photos
7 miles west of Redig (courtesy Ashley Secrest) |
Harding (courtesy Carmen Gilbert) |
7 miles west of Redig (courtesy Ashley Secrest) |
Plainview (courtesy Glen King) |
Radar
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