An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >
Overview
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In the afternoon and evening of Sunday, June 28th, 2020, thunderstorms developed across northeastern WY, and moved across western SD. Several locations received damaging hail and winds. The largest hail reported was 2.25 inches, and the strongest wind reported was 83 mph. Several roofs were blown off, and hail damage was sustained to buildings and cars. Storms gradually dissipated as they shifted east Sunday evening. |
 Rapid City (A. Phelps) |
Photos
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| Merritt (S. Schell) |
Merritt (S. Schell) |
Newell (J. Bernstein) |
Black Hawk (S. Fleming Solano) |
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| Nemo (P. Wiley) |
Nisland (A. Kaye) |
Black Hawk (K. Dowling) |
Black Hawk (K. Larsen Anderson) |
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| Piedmont (A. Schwab) |
Piedmont (A. Reed) |
Piedmont (E. Bohnenkamp) |
Piedmont (J. LaPlante) |
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| Piedmont (L. Hart Brewer) |
Summerset (D. Hoiten) |
Summerset (K. Peterson) |
Summeset (K. Peterson) |
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| Belle Fourche (J. and H. Williams) |
Custer (M. Czarnek) |
Custer (T. Parsons) |
Gillette Airport (L.B. Bourne) |
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 ------ ----------------------- -- -------------- ------- 2.25 PIEDMONT SD MEADE 0615 PM 2.00 SUMMERSET SD MEADE 0615 PM 2.00 4 N SILVER CITY SD LAWRENCE 0550 PM 1.75 CUSTER SD CUSTER 0733 PM 1.75 PIEDMONT SD MEADE 0613 PM 1.75 1 NNW PIEDMONT SD MEADE 0610 PM LOTS OF HALF DOLLAR SIZE HAIL 1.75 11 E DEVILS TOWER WY CROOK 0405 PM 1.50 4 NW HILL CITY SD PENNINGTON 0740 PM 1.50 1 NNW PIEDMONT SD MEADE 0609 PM 1.50 2 N NISLAND SD BUTTE 0520 PM 1.25 4 S DWTN RAPID CITY SD PENNINGTON 0817 PM 1.25 2 W HAYWARD SD PENNINGTON 0800 PM 1.25 3 ENE CUSTER SD CUSTER 0730 PM 1.25 1 W CUSTER SD CUSTER 0720 PM 1.25 9 SW MUD BUTTE SD BUTTE 0618 PM 1.00 5 WSW MARTIN SD BENNETT 0820 PM 1.00 1 SE ROCKERVILLE SD PENNINGTON 0802 PM 1.00 NEMO SD LAWRENCE 0603 PM 1.00 3 N MYSTIC SD PENNINGTON 0535 PM 1.00 9 WSW BELLE FOURCHE SD BUTTE 0447 PM 1.00 ALADDIN WY CROOK 0432 PM 1.00 9 SE DEVILS TOWER WY CROOK 0400 PM 1.00 4 N ROZET WY CAMPBELL 0310 PM CAMPER LAID ON IT`S SIDE 1.00 ROZET WY CAMPBELL 0305 PM 1.00 5 ENE DWTN GILLETTE WY CAMPBELL 0250 PM 1.00 DWTN GILLETTE WY CAMPBELL 0242 PM 1.00 4 S DWTN GILLETTE WY CAMPBELL 0235 PM 0.88 4 SE DEERFIELD SD PENNINGTON 0725 PM 0.88 BELLE FOURCHE SD BUTTE 0520 PM Tstm wind reports listed by speed (mph) SPEED LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 83.00 7 NNE RALPH SD HARDING 0629 PM 82.00 1 NNE FAITH SD MEADE 0729 PM 72.00 1 WSW RED ELM SD ZIEBACH 0744 PM 70.00 9 SW MUD BUTTE SD BUTTE 0618 PM 70.00 2 SE BELLE FOURCHE RESV SD BUTTE 0515 PM 70.00 9 WSW DWTN GILLETTE WY CAMPBELL 0225 PM 70.00 19 NNW SAVAGETON WY CAMPBELL 0210 PM ROOF BLOWN AWAY 69.00 1 N BUFFALO SD HARDING 0542 PM 66.00 1 NNE FAITH SD MEADE 0722 PM 63.00 1 WSW RED ELM SD ZIEBACH 0734 PM 61.00 16 WSW DWTN GILLETTE WY CAMPBELL 0222 PM 60.00 5 WSW MARTIN SD BENNETT 0820 PM 60.00 9 WSW RED ELM SD ZIEBACH 0732 PM 60.00 9 E MAURINE SD MEADE 0700 PM 60.00 6 NW UNION CENTER SD MEADE 0635 PM 60.00 1 N CAMP CROOK SD HARDING 0510 PM 60.00 BELLE FOURCHE SD BUTTE 0505 PM 60.00 3 E SUNDANCE WY CROOK 0447 PM 60.00 5 ENE DWTN GILLETTE WY CAMPBELL 0250 PM 60.00 1 S DWTN GILLETTE WY CAMPBELL 0240 PM 59.00 3 E PHILIP SD HAAKON 0941 PM 59.00 1 ENE MUD BUTTE SD MEADE 0639 PM 58.00 1 NNW NISLAND SD BUTTE 0520 PM 57.00 3 W UNION CENTER SD MEADE 0619 PM 57.00 3 W UNION CENTER SD MEADE 0614 PM 56.00 3 W UNION CENTER SD MEADE 0629 PM 56.00 3 W UNION CENTER SD MEADE 0624 PM 55.00 1 ENE MUD BUTTE SD MEADE 0634 PM 55.00 12 WSW DWTN GILLETTE WY CAMPBELL 0228 PM 53.00 3 W UNION CENTER SD MEADE 0635 PM 52.00 FOUR CORNERS WY WESTON 0452 PM 52.00 FOUR CORNERS WY WESTON 0446 PM 51.00 1 NE MIDLAND SD HAAKON 1012 PM 50.00 9 ENE BELVIDERE SD JACKSON 1002 PM 50.00 1 NNW NISLAND SD BUTTE 0525 PM
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