Showers and thunderstorms with heavy rainfall, with a few thunderstorms being severe, are expected over portions of the Southeast and Mid-Atlantic States through Monday. Across the Rockies and Intermountain West, a storm system will bring showers, thunderstorms and high elevation snow.
Overview
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A complex, slow-moving upper-level disturbance brought several rounds of snowfall to eastern Wyoming and western South Dakota from early on February 15th through the day on February 17th. The most significant accumulations during the event occurred within a band of heavy snow over the northwest South Dakota plains on the 16th, which brought localized snowfall rates of over two inches per hour at times. Snowfall totals over the three days exceeded a foot in many locations over northwestern South Dakota, with a general decrease in amounts towards the southwest. Highest amounts were measured in Perkins County, where over 20" of snowfall occurred.
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Snowfall Totals
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| Storm Total (click to enlarge) | February 16th-17th (click to enlarge) | |||
SNOWFALL TOTALS FROM FEB 15 THROUGH FEB 17
INCHES LOCATION ST COUNTY TIME
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21.00 8 WNW USTA SD PERKINS 0600 AM
16.00 10 S REVA SD HARDING 0605 PM
16.00 7 SSE BISON SD PERKINS 0722 AM
15.00 1 S MEADOW SD PERKINS 0607 PM
14.00 1 WNW HOOVER SD BUTTE 1235 PM
14.00 9 SSE SORUM SD PERKINS 1155 AM
14.00 9 SSW LODGEPOLE SD PERKINS 0618 PM
13.00 OPAL SD MEADE 1248 PM
12.00 DUPREE SD ZIEBACH 0440 PM
12.00 1 NNE RALPH SD HARDING 1232 PM
12.00 9 WSW RED ELM SD ZIEBACH 0736 AM
10.50 2 W OPAL SD MEADE 0700 AM
10.00 RED OWL SD MEADE 0700 AM
9.20 6 WNW SHADEHILL SD PERKINS 0700 AM
9.10 LEMMON SD PERKINS 0500 PM
9.00 2 SW NORRIS SD MELLETTE 0700 AM
8.00 8 SE HOOVER SD BUTTE 1230 PM
7.90 5 ESE DOWNTOWN RAPID CI SD PENNINGTON 0700 AM
7.30 3 SE SAINT ONGE SD LAWRENCE 0530 AM
7.10 1 NNE SUNDANCE WY CROOK 1200 AM
7.00 5 NE MILESVILLE SD HAAKON 1240 PM
7.00 8 WSW LODGEPOLE SD PERKINS 1000 AM
6.80 8 SE MUD BUTTE SD MEADE 0800 AM
6.70 1 SSE DOWNTOWN SPEARFIS SD LAWRENCE 0800 AM
6.50 MISSION SD TODD 0102 PM
6.50 19 SW UPTON WY WESTON 0700 AM
6.40 2 S DOWNTOWN RAPID CITY SD PENNINGTON 0700 AM
6.20 1 N HISEGA SD PENNINGTON 0700 AM
6.00 4 W DOWNTOWN RAPID CITY SD PENNINGTON 0700 AM
5.40 7 NNE ELLSWORTH AFB SD MEADE 0700 AM
5.30 HILL CITY SD PENNINGTON 0700 AM
5.30 HULETT WY CROOK 0645 AM
5.10 1 ESE PACTOLA RESERVOIR SD PENNINGTON 0800 AM
5.10 MOUNT RUSHMORE SD PENNINGTON 1200 AM
5.00 7 NW CEDAR BUTTE SD MELLETTE 0700 AM
5.00 11 NNE WESTON WY CAMPBELL 0700 AM
5.00 DOWNTOWN HOT SPRINGS SD FALL RIVER 0700 AM
5.00 7 N WOOD SD MELLETTE 0600 AM
5.00 3 SSE HARDING SD HARDING 0800 AM
4.80 6 W NEW UNDERWOOD SD PENNINGTON 0700 AM
4.60 3 NE HISEGA SD PENNINGTON 0700 AM
4.50 ORAL SD FALL RIVER 0700 AM
4.50 1 ESE WINNER SD TRIPP 0700 AM
4.50 4 NNE SUMMERSET SD MEADE 0700 AM
4.50 1 S DOWNTOWN BELLE FOUR SD BUTTE 0700 AM
4.50 4 NNE SUMMERSET SD MEADE 0700 AM
4.30 6 NNW DOWNTOWN SPEARFIS SD LAWRENCE 0700 AM
4.30 SUNDANCE WY CROOK 0600 AM
4.10 14 NNE MARTIN SD BENNETT 0700 AM
4.10 3 ESE CHEYENNE CROSSING SD LAWRENCE 0700 AM
4.00 6 SW BEULAH WY CROOK 0800 AM
4.00 3 E DOWNTOWN NEWCASTLE WY WESTON 0700 AM
4.00 1 WSW DOWNTOWN NEWCASTL WY WESTON 0700 AM
4.00 7 E LAKEVIEW SD TODD 0700 AM
3.70 9 ENE WEWELA SD TRIPP 0600 AM
3.50 1 ENE MIDLAND SD HAAKON 0700 AM
3.50 LEAD SD LAWRENCE 0100 PM
3.50 6 ENE NEWELL SD BUTTE 0700 AM
3.00 3 ENE KYLE SD OGLALA LAKOTA 0700 AM
3.00 9 N CEDAR BUTTE SD MELLETTE 0600 AM
3.00 2 WSW HAMILL SD TRIPP 0700 AM
2.50 16 NW PHILIP SD HAAKON 1250 PM
1.50 1 NNE EDGEMONT SD FALL RIVER 0600 AM
Radar
| Radar imagery through Saturday, February 16th, showing the development and evolution of a heavy band of snow across northwestern South Dakota into southeastern Montana and southwestern North Dakota |
Snow Photos
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| Mission, SD (courtesy Barbara S.) |
NW Perkins County, SD (courtesy Tressie E.) |
N Perkins County, SD (courtesy Jenny B.) |
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| Hill City, SD (courtesy Kim G.) |
New Underwood, SD (courtesy Chad T.) |
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