Overview
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Thunderstorms developed along and north of a warm front on June 12. These storms repeatedly moved over the same areas for several hours through the evening of June 12 into the morning of June 13. The "training" nature of the storms resulted in significant rainfall accumulations across northeast South Dakota and west central Minnesota. Some areas received over 6 to 7 inches of rain, leading to subsequent flooding. Marshall and Roberts Counties in South Dakota, along with Big Stone County in Minnesota, experienced the most significant impacts. Many secondary highways were closed due to water over the road. Buildings and vehicles took on water on the southeast side of Sisseton, particularly near the Lakes Gas business. Water also rose rapidly on rivers and lakes. Gauging stations on the North Fork Whetstone River near Milbank, the Minnesota River at Ortonville, and the Little Minnesota River near Peever all rose into minor flood stage. Big Stone Lake levels also increased quickly, submerging many docks. Additional thunderstorms would occur June 15-16, adding to the already saturated grounds and flood situation. Some storms would produce quarter size hail and 60-73 mph wind gusts. |
 24 Hour Precipitation Estimates Ending at 7 AM June 13 |
Radar
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| KABR Radar Imagery ~1:00 AM to 3:00 AM Central | KABR Radar Imagery ~3:00 AM to 5:00 AM Central |
Photos & Video
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Storm Reports
| Location | Total from 12th through 16th | Greatest 24hr Total and Date |
|---|---|---|
| Wilmot | 6.72 inches | 5.60 in/ 13th |
| Big Stone City 5 WNW | 6.28 inches | 4.97 in/ 13th |
| Sisseton COOP | 5.67 inches | 3.12 in/ 13th |
| Lake City 4 SW | 5.62 inches | 5.25 in/ 13th |
| Sisseton 10 ENE | 5.53 inches | 4.18 in/ 13th |
| Sisseton 4W | 5.46 inches | 4.63 in/ 13th |
| Milbank | 4.93 inches | 2.92 in/ 13th |
| Milbank 2 WSW | 4.92 inches | 2.90 in/ 13th |
| Milbank 4 SSW | 4.89 inches | 2.64 in/ 13th |
| Sisseton Airport | 4.63 inches | 2.19 in/ 13th |
| Appleton, MN, 4W | 4.55 inches | 3.58 in/ 13th |
| Britton | 4.53 inches | 4.35 in/ 13th |
| Artichoke Lake | 4.32 inches | 2.62 in/ 13th |
| Sand Lake | 3.85 inches | 3.70 in/ 13th |
| Victor 4N | 3.17 inches | 2.25 in/ 13th |
| Columbia | 3.01 inches | 2.78 in/ 13th |
| Summit | 2.53 inches | 1.48 in/ 13th |
| Aberdeen Airport | 2.05 inches | 1.84 in/ 12th |
Totals above are for sites that reported each day from June 12th through the 16th.
| Location | Greatest 24 hour Rainfall Total and Date |
|---|---|
| Claremont | 7.06 in/ 13th |
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