Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. 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.

3 SW Kyle

(NWS Storm Survey)

Tornado
Wind & Hail
Radar
Storm Reports

Tornado:

Tornado - 6 miles south of Kyle
Oglala Lakota County

Date	July 29, 2018
Time (Local)	2:22 PM MDT
EF Rating	0
Est. Peak Winds	80 mph
Path Length	100 yards
Max Width	10 yards
Injuries/Deaths	0
Summary: A brief, weak tornado damaged some trees.

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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Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

July 29, 2018 Tornado and Strong Winds Near Kyle, SD