Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >
Overview
A powerful, early-winter storm moved through the Northern and Central Plains on December 4, 2017, producing several inches of snowfall across portions of northeastern Wyoming and western South Dakota. Upslope winds across the northern Black Hills led to localized enhanced snowfall rates, leading to accumulations of 8-12 inches. High winds were also observed during and following the snowfall, with gusts of 60-65 mph common across the Foothills and Plains of South Dakota.
Snow/Ice
Storm Reports
The storm reports listed below are in descending order and may not
necessarily be the final storm reports.
Snow reports listed by amount
INCHES LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
8.00 LEAD SD LAWRENCE 0200 PM
7.80 3 ESE CHEYENNE CROSSING SD LAWRENCE 0800 AM
6.50 DOWNTOWN SPEARFISH SD LAWRENCE 0900 AM
6.00 2 NNW SAINT ONGE SD LAWRENCE 1010 AM
6.00 8 NNE SUNDANCE WY CROOK 1000 AM
6.00 7 SW BROWNSVILLE SD LAWRENCE 1000 AM
6.00 6 NNW SUNDANCE WY CROOK 0600 AM
5.00 9 NW DEERFIELD SD PENNINGTON 0800 AM
5.00 7 SW BROWNSVILLE SD LAWRENCE 0800 AM
5.00 CENTRAL CITY SD LAWRENCE 0605 AM
4.00 ROCHFORD SD PENNINGTON 1000 AM
4.00 5 WSW BEULAH WY CROOK 0900 AM
4.00 HULETT WY CROOK 0800 AM
3.50 2 W OPAL SD MEADE 0800 AM
3.50 1 S DOWNTOWN BELLE FOUR SD BUTTE 0800 AM
3.20 2 ENE NEWELL SD BUTTE 0800 AM
3.00 DOWNTOWN GILLETTE WY CAMPBELL 0615 AM
2.50 NEWELL SD BUTTE 0800 AM
2.00 6 NNW SUNDANCE WY CROOK 1000 AM
2.00 9 WSW RED ELM SD ZIEBACH 0827 AM
2.00 1 NE SUNDANCE WY CROOK 0800 AM
2.00 13 NNW DOWNTOWN GILLETT WY CAMPBELL 0800 AM
2.00 11 NNE WESTON WY CAMPBELL 0800 AM
2.00 14 NNW DOWNTOWN GILLETT WY CAMPBELL 0640 AM
2.00 DOWNTOWN STURGIS SD MEADE 0626 AM
BLOWING SNOW WITH THE STRONG WINDS
1.50 EDGEMONT SD FALL RIVER 0700 AM
1.50 5 E PIEDMONT SD MEADE 0700 AM
1.50 6 NE ELLSWORTH AFB SD MEADE 0700 AM
1.00 3 ENE KYLE SD OGLALA LAKOTA 0700 AM
1.00 6 NNW EDGEMONT SD FALL RIVER 0700 AM
Wind gust reports listed by speed (mph)
SPEED LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
66.00 1 NE MIDLAND SD HAAKON 1213 PM
66.00 3 NNW SCENIC SD PENNINGTON 0919 AM
66.00 ELLSWORTH AFB SD MEADE 0825 AM
65.00 15 SSE MISSION SD TODD 1145 AM
65.00 3 NW WASTA SD PENNINGTON 0824 AM
64.00 1 ENE MUD BUTTE SD MEADE 0939 AM
64.00 8 S WALL SD PENNINGTON 0820 AM
64.00 RAPID CITY AIRPORT SD PENNINGTON 0801 AM
62.00 7 E WANBLEE SD JACKSON 1234 PM
62.00 1 E DOWNTOWN RAPID CITY SD PENNINGTON 1014 AM
62.00 1 W BOX ELDER SD PENNINGTON 0844 AM
61.00 WEWELA SD TRIPP 0144 PM
61.00 5 NE PORCUPINE SD OGLALA LAKOTA 1241 PM
61.00 7 NNE ELLSWORTH AFB SD MEADE 0622 AM
60.00 4 SSE WITTEN SD TRIPP 0114 PM
60.00 3 E PHILIP SD HAAKON 1135 AM
60.00 25 ESE WRIGHT WY CAMPBELL 0605 AM
59.00 1 NE WINNER SD TRIPP 1233 PM
59.00 5 WNW NEW UNDERWOOD SD PENNINGTON 0819 AM
58.00 9 ENE BELVIDERE SD JACKSON 1130 AM
58.00 4 E CACTUS FLAT SD JACKSON 1130 AM
58.00 6 W PARMELEE SD TODD 1128 AM
58.00 5 SSE BEAR BUTTE STATE SD MEADE 0955 AM
58.00 7 NNE RALPH SD HARDING 0859 AM
56.00 1 N BUFFALO SD HARDING 0807 AM
55.00 1 NNE FAITH SD MEADE 0927 AM
52.00 1 NE ECHETA WY CAMPBELL 0451 AM
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