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 afternoon of July 29, 2018, an intense thunderstorm over northeast and east-central Oglala Lakota County produced a brief tornado and significant straight-line wind damage. The tornado developed about 6.5 miles south of Kyle, SD in a small grove of trees off American Horse Creek Road. The tops of trees were twisted and broken off. The highest winds of the tornado were estimated to be 80 mph, which gives it a rating of EF-0. In addition, straight-line winds severely damaged several houses southwest of Kyle, with one house being completely destroyed. Estimated wind speeds there were as high as 120 mph. |
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Tornado:
Tornado - 6 miles south of Kyle
Track Map |
6 S Kyle (NWS Storm Survey) |
6 S Kyle (NWS Storm Survey) |
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 |
Wind & Hail Pictures:
Wind
3 SW Kyle (NWS Storm Survey) |
3 SW Kyle (NWS Storm Survey) |
3 SW Kyle (NWS Storm Survey) |
5 SW Kyle (Kateland Cross) |
5 SW Kyle (Kateland Cross) |
5 SW Kyle (Kateland Cross) |
3 SW Kyle (NWS Storm Survey) |
3 SW Kyle (NWS Storm Survey) |
3 SW Kyle (NWS Storm Survey) |
Hail
5 SW Kyle (Kateland Cross) |
Near Kyle (Kateland Cross) |
Radar
Storm Reports
The storm reports listed below are in descending order and may not necessarily be the final storm reports. Hail reports listed by size (inches) SIZE LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 2.00 KYLE SD OGLALA LAKOTA 0210 PM 1.75 4 N DOWNTOWN SPEARFISH SD LAWRENCE 0240 PM 1.25 3 ENE KYLE SD OGLALA LAKOTA 0210 PM 1.00 9 NW EDGEMONT SD FALL RIVER 0605 PM 1.00 6 SSE BROWNSVILLE SD LAWRENCE 0328 PM 1.00 BROWNSVILLE SD LAWRENCE 0315 PM 1.00 5 W WHITEWOOD SD LAWRENCE 0255 PM 1.00 11 SE OELRICHS SD FALL RIVER 0240 PM 1.00 1 WNW WIND CAVE VISITOR SD CUSTER 0130 PM 0.88 1 WNW PACTOLA RESERVOIR SD PENNINGTON 0340 PM 0.50 3 N SHERIDAN LAKE SD PENNINGTON 0351 PM Tstm wind reports listed by speed (mph) SPEED LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 69.00 11 SE OELRICHS SD FALL RIVER 0240 PM 60.00 BROWNSVILLE SD LAWRENCE 0310 PM 60.00 5 W WHITEWOOD SD LAWRENCE 0255 PM 58.00 1 N BUFFALO SD HARDING 1253 PM
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