Tropical Storm Imelda has formed near the Bahamas Sunday afternoon, and continues to bring heavy rainfall. The risk of significant wind impacts from Imelda along the Southeast coast are decreasing. Another round of showers and storms with a heavy rain and flash flood threat will continue in the Southwest through Monday morning. Read More >
Overview
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Two rounds of severe storms brought large hail, strong winds and brief heavy rainfall to portions of northeastern Wyoming and southwestern South Dakota. Storms began over the Black Hills in the afternoon hours, with large hail reported in Piedmont, Nemo, Black Hawk, Hart Ranch, and Hermosa. A second round of severe storms moved through in the evening hours as an upper level system combined with a cold front. These features allowed storms to develop in a line and move east through most of northeastern Wyoming and western South Dakota. Strong winds were associated with this line of storms with wind gusts exceeding 60 mph at Rochelle, near Dewey, in the Badlands, Cactus Flats, Cottonwood, Phillip, and Belvidere. |
 Clouds over Rapid City Photo by Marcella Fish |
Photos & Video
Monday, July 3
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| Hail Rapid City Photo by Lonna Reiner |
Hail Rapid City Photo by Lonna Reiner |
Hail Nemo Rd Photo by Jill Peterson |
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| Hail Rapid City Photo by Cicely DeMars Schock |
Hail Rapid City Photo by Cicely DeMars Schock |
Hail Black Hills RV Park Photo by Beth Ann Gallagher Warkentin |
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| Hail Wright Photo by Robby Gallob |
Hail Wright Photo by Robby Gallob |
Hail Pine Haven Photo by Tom Lubas |
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| Sturgis Photo by Asha Franzen |
Wright Photo by Dylan Kelly |
South of Rapid City Photo by Gavin O'Brien |
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| Rapid City Photo by Zoey Senri White |
Black Hawk Photo by Lisa Howard |
Newcastle Photo by Amber Perkins |
MON-5:49 PM: Crystal Lee reporting Baseball sized hail near Hart Ranch around 5:45 PM #sdwx @NWSRapidCity pic.twitter.com/veOgHo2Pub
— Brant Beckman ☀ï¸ðŸ’§âš¡ï¸ (@BrantBeckmanwx) July 3, 2023
MON-10:28 PM: Kaitlyn Oster caught some impressive lightning next to the fireworks show in Belle Fourche, SD.
— Brant Beckman ï¸ (@BrantBeckmanwx) July 4, 2023
(Would not recommend mixing fireworks with lightning, but cool photo) #sdwx @NWSRapidCity pic.twitter.com/xpl7u8USP0
#Thunderstorms over the #Badlands. #SDwx pic.twitter.com/l8Ss7vfmrn
— Derek Thompson (@derek130wx) July 4, 2023
Looking south at storm near Hermosa, SD. pic.twitter.com/wFY8mkGQ4s
— Randy Halverson (@dakotalapse) July 4, 2023
Supercell over Hermosa, SD. And a tiny SLC on it. #sdwx pic.twitter.com/aiW3NnPc9H
— Jakob McMillin (@JakobWX) July 4, 2023
This structure is GORGEOUS!!! pic.twitter.com/ppVD6l4iTq
— Darsha Dodge (@darsha_news) July 3, 2023
â¦@NWSRapidCityâ© feel free to use this image for you event summary. Between red shirt and scenic #sdwx 7/3/23 pic.twitter.com/TGkFQmW1ih
— Shane Ornelas (@ShaneHpns) July 4, 2023
North of interior #sdwx 11:09 mdt @NWSRapidCity pic.twitter.com/HcROPtr37n
— Shane Ornelas (@ShaneHpns) July 4, 2023
One of the most beautiful supercells I have ever seen moved through the Black Hills and Badlands today #sdwx @NWSRapidCity @chaser_dave @BrantBeckmanwx pic.twitter.com/AQjV5KnFey
— Brad Walton (@wx_Brad) July 4, 2023
1.5” hail in Wright @NWSRapidCity pic.twitter.com/DTQpoHftqd
— Kevin Palmer (@krp234) July 4, 2023
BASEBALL SIZED HAIL FALLING SOUTH OF RAPID CITY #SDWX @NWSRapidCity pic.twitter.com/FiTL77oqiW
— Storm Chaser Ryan Scholl (@WxScholl) July 4, 2023
Lots of rotation @chaser_dave @ryanlarmeuwx @NWSRapidCity pic.twitter.com/SKD5TGNWPx
— Shelby Peplowski (@PeppyWx) July 3, 2023
Radar
1st Round of Storms (1:50 PM until 7:50 AM MT)
2nd Round of Storms (8:00 PM until 1:50 AM MT)
Storm Reports
*********STORM TOTAL RAINFALL (AT LEAST 0.50 INCH)**********
LOCATION TOTAL TIME/DATE COMMENTS
RAINFALL MEASURED
(inches)
SOUTH DAKOTA
...Butte County...
9 SSW Castle Rock 0.62 600 AM 7/04 CoCoRaHS
1 NNW Nisland 0.50 800 AM 7/04 SDSU Mesonet
...Custer County...
7 WSW Folsom 1.28 515 AM 7/04 CoCoRaHS
1 NW Hermosa 0.65 700 AM 7/04 CoCoRaHS
1 WSW Custer 0.50 800 AM 7/04 CoCoRaHS
...Harding County...
9 NW Ludlow 0.97 700 AM 7/04 CoCoRaHS
9 WSW Ladner 0.72 800 AM 7/04 CoCoRaHS
5 SSE Ralph 0.50 800 AM 7/04 CWOP
...Lawrence County...
5 SW Brownsville 0.75 800 AM 7/04 CWOP
6 NNW Dwtn Spearfish 0.57 700 AM 7/04 CoCoRaHS
...Meade County...
8 SE Mud Butte 0.53 800 AM 7/04 CoCoRaHS
1 NNW Piedmont 0.52 800 AM 7/04 NWS Employee
...Mellette County...
7 N Wood 0.60 600 AM 7/04 CoCoRaHS
...Pennington County...
3 W Scenic 1.04 700 AM 7/04 CoCoRaHS
Mount Rushmore 0.90 1258 AM 7/04 Co-Op Observer
8 S Wall 0.79 800 AM 7/04 RAWS
12 S Quinn 0.53 800 AM 7/04 CoCoRaHS
...Perkins County...
9 SE Meadow 0.98 700 AM 7/04 CoCoRaHS
8 ESE Prairie City 0.95 700 AM 7/04 CoCoRaHS
7 S Shadehill 0.91 800 AM 7/04 RAWS
Bison 0.68 800 AM 7/04 SDSU Mesonet
WYOMING
...Campbell County...
1 NE Echeta 0.59 800 AM 7/04 RAWS
14 NNW Dwtn Gillette 0.53 700 AM 7/04 CoCoRaHS
...Crook County...
Sundance 1.30 600 AM 7/04 CoCoRaHS
4 SSE Pine Haven 0.98 1015 PM 7/03 Trained Spotter
4 SSE Devils Tower 0.93 730 AM 7/04 CoCoRaHS
...Weston County...
1 WSW Newcastle 0.76 700 AM 7/04 CoCoRaHS
3 E Newcastle 0.67 600 AM 7/04 CoCoRaHS
**************PEAK WIND GUST (AT LEAST 50 MPH)**************
LOCATION MAX WIND TIME/DATE COMMENTS
GUST MEASURED
(mph)
SOUTH DAKOTA
...Custer County...
7 SSW Folsom 60 705 PM 7/03 Public
8 W Jewel Cave 55 951 PM 7/03 SDDOT
8 SSW Folsom 54 651 PM 7/03 SDDOT
...Fall River County...
12 E Oelrichs 65 1001 PM 7/03 SDDOT
14 NNW Edgemont 58 925 PM 7/03 SDSU Mesonet
10 S Hot Springs 57 1016 PM 7/03 RAWS
10 W Edgemont 52 930 PM 7/03 SDDOT
7 W Ardmore 52 905 PM 7/03 SDSU Mesonet
11 W Hot Springs 50 932 PM 7/03 SDDOT
...Haakon County...
3 E Philip 61 1144 PM 7/03 ASOS
10 NNW Ottumwa 54 1252 AM 7/04 SDDOT
...Harding County...
1 N Buffalo 55 1023 PM 7/03 ASOS
7 NNE Ralph 50 1102 PM 7/03 SDDOT
...Jackson County...
4 E Cactus Flat 72 1127 PM 7/03 SDDOT
2 E Cottonwood 67 1130 PM 7/03 SDSU Mesonet
9 ENE Belvidere 61 1156 PM 7/03 SDDOT
7 E Wanblee 50 1228 AM 7/04 SDDOT
...Oglala Lakota County...
5 NE Porcupine 62 1141 PM 7/03 RAWS
3 ESE Pine Ridge 56 1017 PM 7/03 ASOS
9 SW Batesland 55 1048 PM 7/03 SDDOT
...Pennington County...
8 S Wall 75 1113 PM 7/03 Twitter
16 ESE Scenic 63 1057 PM 7/03 Public
3 NNW Scenic 61 1105 PM 7/03 SDDOT
...Perkins County...
8 E Prairie City 55 1122 PM 7/03 SDDOT
...Todd County...
7 ESE Rosebud 54 1115 PM 7/03 SDSU Mesonet
...Tripp County...
1 NE Winner 52 133 AM 7/04 ASOS
WYOMING
...Campbell County...
25 ESE Wright 61 905 PM 7/03 RAWS
Wright 50 745 PM 7/03 Trained Spotter
...Crook County...
4 SSE Pine Haven 60 1015 PM 7/03 Trained Spotter
10 ESE Pine Haven 51 912 PM 7/03 WYDOT
***********MAXIMUM HAIL SIZE (AT LEAST 0.50 MPH)************
LOCATION HAIL TIME/DATE COMMENTS
SIZE MEASURED
(inches)
SOUTH DAKOTA
...Custer County...
5 ENE Custer 1.75 745 PM 7/03 Trained Spotter
1 SW Hermosa 1.50 604 PM 7/03 Mping report
Hermosa 1.00 633 PM 7/03 Public
5 WNW Hermosa 0.50 802 PM 7/03 Trained Spotter
...Lawrence County...
Nemo 1.75 534 PM 7/03 Facebook
...Meade County...
1 NNW Piedmont 1.75 318 PM 7/03 NWS Employee
Summerset 1.00 350 PM 7/03 Trained Spotter
1 NW Black Hawk 0.70 358 PM 7/03 Trained Spotter
...Pennington County...
7 E Rockerville 2.75 549 PM 7/03 Public
2 NW Dwtn Rapid City 2.00 420 PM 7/03 Elongated hail stone
5 ENE Rockerville 2.00 545 PM 7/03 Reptile Gardens
4 NE Johnson Siding 1.75 416 PM 7/03 Facebook
4 WNW Dwtn Rapid Cit 1.50 417 PM 7/03 Mping report
4 ENE Rockerville 1.50 545 PM 7/03 Public
4 S Dwtn Rapid City 1.50 535 PM 7/03 NWS Employee
3 N Mystic 1.00 616 PM 7/03 Mostly pea size hail
3 W Dwtn Rapid City 1.00 420 PM 7/03 Facebook
4 N Johnson Siding 0.75 413 PM 7/03 Trained Spotter
7 SW Rapid City Arpt 0.70 418 PM 7/03 NWS Employee
WYOMING
...Campbell County...
Wright 1.75 745 PM 7/03 Trained Spotter
13 SE Weston 1.00 830 PM 7/03 Public
...Crook County...
4 ESE Pine Haven 1.50 900 PM 7/03 Trained Spotter
2 NE Sundance 1.00 930 PM 7/03 Trained Spotter
...Weston County...
Newcastle 1.00 942 PM 7/03 Public
...PRELIMINARY RAINFALL TOTALS (AT LEAST 0.50 INCH) SORTED BY MAGNITUDE...
LOCATION TOTAL RAIN COMMENTS
IN/S/
Sundance WY 1.30 600 AM 7/04/2023
7 WSW Folsom SD 1.28 515 AM 7/04/2023
3 W Scenic SD 1.04 700 AM 7/04/2023
4 SSE Pine Haven WY 0.98 1015 PM 7/03/2023
9 SE Meadow SD 0.98 700 AM 7/04/2023
9 NW Ludlow SD 0.97 700 AM 7/04/2023
8 ESE Prairie City SD 0.95 700 AM 7/04/2023
4 SSE Devils Tower WY 0.93 730 AM 7/04/2023
7 S Shadehill SD 0.91 800 AM 7/04/2023
Mount Rushmore SD 0.90 1258 AM 7/04/2023
8 S Wall SD 0.79 800 AM 7/04/2023
1 WSW Newcastle WY 0.76 700 AM 7/04/2023
5 SW Brownsville SD 0.75 800 AM 7/04/2023
9 WSW Ladner SD 0.72 800 AM 7/04/2023
Bison SD 0.68 800 AM 7/04/2023
3 E Newcastle WY 0.67 600 AM 7/04/2023
1 NW Hermosa SD 0.65 700 AM 7/04/2023
9 SSW Castle Rock SD 0.62 600 AM 7/04/2023
7 N Wood SD 0.60 600 AM 7/04/2023
1 NE Echeta WY 0.59 800 AM 7/04/2023
6 NNW Dwtn Spearfish SD 0.57 700 AM 7/04/2023
14 NNW Dwtn Gillette WY 0.53 700 AM 7/04/2023
12 S Quinn SD 0.53 800 AM 7/04/2023
8 SE Mud Butte SD 0.53 800 AM 7/04/2023
1 NNW Piedmont SD 0.52 800 AM 7/04/2023
1 WSW Custer SD 0.50 800 AM 7/04/2023
5 SSE Ralph SD 0.50 800 AM 7/04/2023
1 NNW Nisland SD 0.50 800 AM 7/04/2023
...MAXIMUM OBSERVED WINDS (AT LEAST 50 MPH) SORTED BY MAGNITUDE...
LOCATION MAX WIND COMMENTS
MPH
8 S Wall SD 75 1113 PM 7/03/2023
4 E Cactus Flat SD 72 1127 PM 7/03/2023
2 E Cottonwood SD 67 1130 PM 7/03/2023
12 E Oelrichs SD 65 1001 PM 7/03/2023
16 ESE Scenic SD 63 1057 PM 7/03/2023
5 NE Porcupine SD 62 1141 PM 7/03/2023
25 ESE Wright WY 61 905 PM 7/03/2023
3 NNW Scenic SD 61 1105 PM 7/03/2023
9 ENE Belvidere SD 61 1156 PM 7/03/2023
3 E Philip SD 61 1144 PM 7/03/2023
7 SSW Folsom SD 60 705 PM 7/03/2023
4 SSE Pine Haven WY 60 1015 PM 7/03/2023
14 NNW Edgemont SD 58 925 PM 7/03/2023
10 S Hot Springs SD 57 1016 PM 7/03/2023
3 ESE Pine Ridge SD 56 1017 PM 7/03/2023
8 W Jewel Cave SD 55 951 PM 7/03/2023
9 SW Batesland SD 55 1048 PM 7/03/2023
1 N Buffalo SD 55 1023 PM 7/03/2023
8 E Prairie City SD 55 1122 PM 7/03/2023
8 SSW Folsom SD 54 651 PM 7/03/2023
10 NNW Ottumwa SD 54 1252 AM 7/04/2023
7 ESE Rosebud SD 54 1115 PM 7/03/2023
10 W Edgemont SD 52 930 PM 7/03/2023
1 NE Winner SD 52 133 AM 7/04/2023
7 W Ardmore SD 52 905 PM 7/03/2023
10 ESE Pine Haven WY 51 912 PM 7/03/2023
11 W Hot Springs SD 50 932 PM 7/03/2023
Wright WY 50 745 PM 7/03/2023
7 E Wanblee SD 50 1228 AM 7/04/2023
7 NNE Ralph SD 50 1102 PM 7/03/2023
...MAXIMUM HAIL SIZE (AT LEAST 0.50 INCH) SORTED BY MAGNITUDE...
LOCATION MAX SIZE COMMENTS
IN/S/
7 E Rockerville SD 2.75 549 PM 7/03/2023
2 NW Dwtn Rapid City SD 2.00 420 PM 7/03/2023
5 ENE Rockerville SD 2.00 545 PM 7/03/2023
Wright WY 1.75 745 PM 7/03/2023
5 ENE Custer SD 1.75 745 PM 7/03/2023
4 NE Johnson Siding SD 1.75 416 PM 7/03/2023
Nemo SD 1.75 534 PM 7/03/2023
1 NNW Piedmont SD 1.75 318 PM 7/03/2023
4 WNW Dwtn Rapid City SD 1.50 417 PM 7/03/2023
4 ESE Pine Haven WY 1.50 900 PM 7/03/2023
4 ENE Rockerville SD 1.50 545 PM 7/03/2023
1 SW Hermosa SD 1.50 604 PM 7/03/2023
4 S Dwtn Rapid City SD 1.50 535 PM 7/03/2023
Summerset SD 1.00 350 PM 7/03/2023
2 NE Sundance WY 1.00 930 PM 7/03/2023
3 N Mystic SD 1.00 616 PM 7/03/2023
Hermosa SD 1.00 633 PM 7/03/2023
13 SE Weston WY 1.00 830 PM 7/03/2023
Newcastle WY 1.00 942 PM 7/03/2023
3 W Dwtn Rapid City SD 1.00 420 PM 7/03/2023
4 N Johnson Siding SD 0.75 413 PM 7/03/2023
7 SW Rapid City Arpt SD 0.70 418 PM 7/03/2023
1 NW Black Hawk SD 0.70 358 PM 7/03/2023
5 WNW Hermosa SD 0.50 802 PM 7/03/202
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