A Moderate Risk of severe thunderstorms (level 4 of 5) is in the outlook across portions of the Midwest today. Damaging winds, a few tornadoes and frequent lightning with heavy rainfall are in the forecast. Meanwhile, dangerous heat across the southern Plains into the Great Lakes, mid-Atlantic and Northeast will expand into Friday. Risk for wildfires for the central Rockies and Sacramento Valley. Read More >
Overview
On Sunday, October 20, 2019, a strong storm brought heavy snow to the Black Hills, with a mix of rain and snow to the foothills. Note how the snow cover (red in image below) is strongly confined to the Black Hills and other higher terrain areas to the northwest. Travel became difficult in parts of the northern Black Hills per the webcam images below. The storm also produced very strong winds, with gusts of 60 to 70 mph in locations. In addition, an unofficial gust of 83 mph was reported 1 mile east-southeast of Custer at 509 pm MDT.
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| Satellite image at 10:11 am on Monday, October 21, 2019 that shows snow on the ground (red areas), snow-free ground (green areas), and clouds (purple areas) |
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Snow Totals
Here are snowfall reports across the Black Hills area from the October 20, 2019 storm.
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| Snowfall reports from Sunday, October 20, 2019 |
INCHES LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 24.00 5 SE CHEYENNE CROSSING SD LAWRENCE 0830 PM 24.00 3 SW BROWNSVILLE SD LAWRENCE 0800 PM 18.00 LEAD SD LAWRENCE 1015 PM 16.10 6 SSW LEAD SD LAWRENCE 0700 AM 12.00 HILL CITY SD PENNINGTON 0942 PM 12.00 3 SE DEERFIELD SD PENNINGTON 0845 PM 12.00 DEADWOOD SD LAWRENCE 0830 PM 12.00 LEAD SD LAWRENCE 0800 PM 10.00 DEADWOOD SD LAWRENCE 0637 PM 9.00 HILL CITY SD PENNINGTON 0800 AM 7.00 1 ESE PACTOLA RES SD PENNINGTON 0730 AM 6.80 JOHNSON SIDING SD PENNINGTON 0350 AM 6.00 2 W DWTN SPEARFISH SD LAWRENCE 0638 AM 6.00 SUNDANCE WY CROOK 0600 AM 6.00 2 N FOUR CORNERS WY WESTON 0600 PM 6.00 11 SW CHEYENNE CROSSING SD LAWRENCE 0137 PM 6.00 4 SE DEERFIELD SD PENNINGTON 1105 AM 5.00 DWTN SPEARFISH SD LAWRENCE 0700 AM 5.00 5 S ALVA WY CROOK 0501 PM 5.00 DWTN SPEARFISH SD LAWRENCE 0448 PM 5.00 CENTRAL CITY SD LAWRENCE 0139 PM 4.80 4 SSW HILL CITY SD PENNINGTON 0700 AM 4.10 MOUNT RUSHMORE SD PENNINGTON 1150 PM 4.00 6 SW BEULAH WY CROOK 0700 AM 4.00 7 NNW DWTN RAPID CITY SD MEADE 0700 AM 4.00 ROCHFORD SD PENNINGTON 0132 PM 3.90 10 WNW DWTN RAPID CITY SD PENNINGTON 0700 AM 3.50 4 NNW WHITEWOOD SD LAWRENCE 0700 AM 3.20 13 WNW SUNDANCE WY CROOK 0700 AM 3.00 3 WNW DWTN RAPID CITY SD PENNINGTON 0700 AM 3.00 KEYSTONE SD PENNINGTON 0545 PM 3.00 ALADDIN WY CROOK 0500 PM 3.00 DWTN GILLETTE WY CAMPBELL 0144 PM 3.00 5 NNW CUSTER SD CUSTER 0133 PM 2.00 4 E NEWCASTLE WY WESTON 0700 AM 2.00 5 ESE DWTN RAPID CITY SD PENNINGTON 0700 AM 2.00 4 NE ROCKERVILLE SD PENNINGTON 0459 PM 2.00 3 S REDIG SD HARDING 0316 PM 2.00 4 N SILVER CITY SD PENNINGTON 0136 PM 2.00 3 WSW SHERIDAN LAKE SD PENNINGTON 0134 PM 1.20 14 NNW DWTN GILLETTE WY CAMPBELL 0700 AM 1.00 5 E PIEDMONT SD MEADE 0700 AM 1.00 2 ENE SUNDANCE WY CROOK 0140 PM 1.00 BEULAH WY CROOK 0140 PM
Radar Loop
Here is a radar loop from midnight Sunday, October 20 to 3:00 am MDT Monday, October 21. Blue areas indicate snow, and green areas indicate rain.
Wind Reports
The image below was created by interpolating observed wind gusts to a grid. It has been smoothed for display purposes, so some of the values might not reflect the actual values at that point. The actual reports are given below this image.
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| Maximum wind gusts on Sunday, October 20, 2019 (note that the image has been smoothed) |
SPEED LOCATION ST COUNTY TIME ------ ----------------------- -- -------------- ------- 83.00 1 ESE CUSTER SD CUSTER 0509 PM 68.00 2 SSW CUSTER SD CUSTER 0549 PM 67.00 1 E DWTN RAPID CITY SD PENNINGTON 0505 PM 64.00 3 WSW FAIRBURN SD CUSTER 0551 PM 63.00 RAPID CITY ARPT SD PENNINGTON 0646 PM 60.00 12 N ELLSWORTH AFB SD MEADE 0500 PM 60.00 2 WSW O`NEIL PASS SD LAWRENCE 0350 PM 60.00 7 NNE ELLSWORTH AFB SD MEADE 0330 PM 60.00 25 ESE WRIGHT WY CAMPBELL 0205 PM 58.00 3 NNW SCENIC SD PENNINGTON 0735 PM 58.00 1 W WIND CAVE VISITORS SD CUSTER 0613 PM 58.00 PRINGLE SD CUSTER 0520 PM 58.00 3 WSW FAIRBURN SD CUSTER 0506 PM 55.00 1 E DWTN RAPID CITY SD PENNINGTON 0253 PM 53.00 FOUR CORNERS WY WESTON 0236 PM
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