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
On May 3, 2020, scattered severe thunderstorms brought large hail to portions of the Black Hills, western South Dakota plains, and northeastern Wyoming. The largest hail reported occurred in Jackson County between Potato Creek and Wanblee, where tennis ball to baseball sized hail was reported. Accumulating hail was also observed in the Black Hills foothills and western plains as several inches of hail covered the ground and roads from Black Hawk southward to northern portions of Rapid City and points southeast.
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| Panoramic view of a severe thunderstorm near Caputa. Image courtesy of Craig Birnie. |
Hail Photos
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| Accumulated hail near Black Hawk (courtesy Jen Kuyper) |
Accumulated hail (courtesy Pat Gerdes) |
Accumulated hail and drifts in Box Elder (courtesy Matt Thompson) |
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| Accumulated hail (courtesy Jordan Johnson) |
Accumulated hail in north Rapid City (courtesy Katie Pojorlie) |
Radar
| Radar loop of the severe storms over and near the Black Hills during the afternoon of May 3, 2020. |
Storm Reports
HAIL REPORTS LISTED BY SIZE (INCHES) SIZE LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 2.75 5 NNE POTATO CREEK SD JACKSON 0705 PM 1.75 4 NE FARMINGDALE SD PENNINGTON 0502 PM 1.75 STURGIS SD MEADE 0336 PM 1.50 4 WNW RAPID CITY ARPT SD PENNINGTON 0425 PM 1.50 3 N DWTN RAPID CITY SD PENNINGTON 0407 PM 1.50 3 N DWTN RAPID CITY SD PENNINGTON 0406 PM 1.50 3 E BLACK HAWK SD MEADE 0402 PM 1.25 6 WSW LONG VALLEY SD JACKSON 0753 PM 1.25 8 WSW WANBLEE SD JACKSON 0734 PM 1.25 4 E BLACK HAWK SD MEADE 0400 PM 1.25 3 ENE DEADWOOD SD LAWRENCE 0250 PM 1.00 13 NNW VETAL SD BENNETT 0813 PM 1.00 19 S QUINN SD PENNINGTON 0640 PM 1.00 4 S HILL CITY SD PENNINGTON 0632 PM 1.00 8 NE SCENIC SD PENNINGTON 0600 PM 1.00 3 SSE DWTN RAPID CITY SD PENNINGTON 0500 PM 1.00 1 NNE UPTON WY WESTON 0404 PM 1.00 4 N DWTN RAPID CITY SD PENNINGTON 0400 PM 1.00 4 E BLACK HAWK SD MEADE 0354 PM 1.00 BLACK HAWK SD MEADE 0338 PM 1.00 STURGIS SD MEADE 0331 PM 1.00 STURGIS SD MEADE 0320 PM 1.00 SUMMERSET SD MEADE 0318 PM 1.00 SUMMERSET SD MEADE 0310 PM 0.88 1 NNE UPTON WY WESTON 0400 PM 0.88 12 W UPTON WY WESTON 0330 PM 0.88 DEADWOOD SD LAWRENCE 0248 PM 0.70 5 ENE CUSTER SD CUSTER 0640 PM 0.70 NEW UNDERWOOD SD PENNINGTON 0509 PM 0.70 DWTN RAPID CITY SD PENNINGTON 0452 PM 0.70 3 N JOHNSON SIDING SD PENNINGTON 0325 PM 0.50 5 S HARDING SD HARDING 0715 PM 0.25 6 SW HERMOSA SD CUSTER 0710 PM
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