National Weather Service United States Department of Commerce

Pacific Storms Continue to Impact the West; Severe Thunderstorms Forecast Thursday in the South

A series of Pacific storm systems will continue to impact the Northwest U.S. into this coming weekend with periods of gusty winds, high surf, low elevation rain, and heavy mountain snow. Severe thunderstorms will be possible on Thursday across central/east Texas into western Louisiana and possibly the ArkLaTex and southeast Oklahoma. Read More >

Overview

Severe thunderstorms developed across northeastern Wyoming and western South Dakota during the afternoon of Saturday, July 16. Strong winds knocked down trees, destroyed a shed, moved a car, tipped a travel trailer, and  and caused damage to a home northeast of Newell. A tree also fell on a car in Rapid City. Here are some of the photos and storm reports relayed to the National Weather Service.

Photo of a severe thunderstorm near Sundance (Photo courtesy of Meghan & Dave Porter):

storm photo from sundance

Wind damage just northeast of Newell (photo courtesy of Butte County Emergency Management):

Wind damage just northeast of Newell (photo courtesy of Butte County Emergency Management):

Wind damage just northeast of Newell (photo courtesy of Butte County Emergency Management):

Tree knocked down in Rapid City (photo courtesy of Fire Department):

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   11 ENE RECLUSE           WY  CAMPBELL         0350 PM
                 LAST 10 MINUTES
  1.75   5 E PORCUPINE            SD  OGLALA LAKOTA    0630 PM
                 HAIL COVERED THE GROUND
  1.75   3 SE FARMINGDALE         SD  PENNINGTON       0320 PM
                 MOST OF THE HAIL WAS QUARTER SIZE... BUT SOME
                 WAS UP TO GOLFBALL SIZE. HAIL LASTED 20
                 MINUTES. NOT MUCH RAIN.
  1.25   6 NNE ALADDIN            WY  CROOK            0508 PM
                 HAIL BROKE A WINDOW ON THE HOUSE.
  1.25   11 ENE RECLUSE           WY  CAMPBELL         0350 PM
  1.25   5 NNE RECLUSE            WY  CAMPBELL         0345 PM
  1.25   12 ENE ECHETA            WY  CAMPBELL         0335 PM
  1.00   1 NNW PIEDMONT           SD  MEADE            0539 PM
                 PEA TO QUARTER SIZE HAIL COVERING THE GROUND.
  1.00   7 NE SMITHWICK           SD  FALL RIVER       0530 PM
  1.00   6 SSE BROWNSVILLE        SD  LAWRENCE         0518 PM
                 VERY STRONG WINDS AS THE STORM BEGAN AND THEN
                 HAD HAIL FROM PEA TO QUARTER SIZE.
  1.00   15 NNW RECLUSE           WY  CAMPBELL         0430 PM
                 0.21 OF RAIN AND MAINLY 1/2 HAIL. SOME PIECES
                 WERE LARGER.
  1.00   2 NE SUNDANCE            WY  CROOK            0430 PM
  1.00   4 N WESTON               WY  CAMPBELL         0400 PM
  1.00   6 NE ELLSWORTH AFB       SD  MEADE            0300 PM
  0.88   4 NNW DOWNTOWN RAPID CI  SD  PENNINGTON       0250 PM

TSTM WIND REPORTS LISTED BY SPEED (MPH)

 SPEED   LOCATION                 ST  COUNTY           TIME
 ------  -----------------------  --  --------------   -------
 85.00   1 WSW RED ELM            SD  ZIEBACH          0740 PM
 79.00   7 E WANBLEE              SD  JACKSON          0720 PM
 79.00   13 NW DOWNTOWN BELLE FO  SD  BUTTE            0530 PM
 70.00   NEWELL                   SD  BUTTE            0600 PM
                 WIND BLEW OVER A 60 FT RADIO TOWER IN NEWELL.
 64.00   1 NNE FAITH              SD  MEADE            0722 PM
 62.00   8 S PLAINVIEW            SD  MEADE            0730 PM
 62.00   9 W JEWEL CAVE           SD  CUSTER           0355 PM
 60.00   11 ENE WANBLEE           SD  JACKSON          0710 PM
                 WIND GUSTS OF 40 TO 60 MPH
 60.00   4 N DOWNTOWN RAPID CITY  SD  PENNINGTON       0552 PM
 60.00   4 WNW NEMO               SD  LAWRENCE         0520 PM
                 1/2 HAIL COVERED THE GROUND
 60.00   6 SSE BROWNSVILLE        SD  LAWRENCE         0518 PM
                 VERY STRONG WINDS AS THE STORM BEGAN AND THEN
                 HAD HAIL FROM PEA TO QUARTER SIZE.
 60.00   9 W JEWEL CAVE           SD  CUSTER           0400 PM
                 WINDS OF 50 TO 60 MPH.
 60.00   11 ENE RECLUSE           WY  CAMPBELL         0350 PM
 57.00   11 SW PARMELEE           SD  TODD             0740 PM
 56.00   RAPID CITY AIRPORT       SD  PENNINGTON       0605 PM
 56.00   1 W BOX ELDER            SD  PENNINGTON       0600 PM
 54.00   15 SSE MISSION           SD  TODD             0820 PM
 54.00   1 E DOWNTOWN RAPID CITY  SD  PENNINGTON       0554 PM
 53.00   7 SSE MEADOW             SD  PERKINS          0720 PM
 52.00   6 W PARMELEE             SD  TODD             0740 PM
 51.00   2 SW BRIDGER             SD  ZIEBACH          0750 PM
 51.00   1 NNW PIEDMONT           SD  MEADE            0539 PM
                 PEA TO QUARTER SIZE HAIL COVERING THE GROUND.
 50.00   3 WSW FAIRBURN           SD  CUSTER           0530 PM

RAIN AMOUNTS (INCHES)

 AMOUNT  LOCATION                 ST  COUNTY           TIME
 ------  -----------------------  --  --------------   -------
  1.22   1 NNW PIEDMONT           SD  MEADE            0556 PM
                 30 MINUTE RAINFALL
  0.60   6 W WANBLEE              SD  JACKSON          0705 PM
                 RAIN FELL IN ABOUT 30 MINUTES