
A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >
Overview
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Around 1:00 PM CDT, emergency management reported a brief landspout tornado near Mission, SD. This landspout caused damage to one residence, located just west of Mission, SD. Damage to the residence included shingles missing from the roof, branches and small trees damaged, a swing set and carport tossed around, and a trampoline being lifted into some trees. Landspout tornadoes are typically weak and short-lived, posing a relatively minor threat of property damage. Landspouts can form with developing thunderstorms before rain, hail, and even thunder is observed. Landspout tornadoes are not usually associated with a wall cloud and are often difficult to detect with weather radar. For more information on landspouts and the differences between "typical" tornadoes (those formed from supercells), see National Severe Storms Laboratory's page. |
![]() Photo from Robert Oliver |
Landspout Tornado:
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Tornado - West of Mission, SD
Track Map
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Damage Photos
| Damaged Carport (Rich Winter) |
Swingset Damage (Rich Winter) |
Trampoline and Tree Damage (Rich Winter) |
| Tree Damage (Rich Winter) |
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