Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Overview

On December 1-2, 2018, moderate to heavy snow fell over portions of northeast Wyoming and western South Dakota. The heaviest snow fell in Colome, SD where 15" was estimated. A band of 8-12" fell over south central South Dakota near the Nebraska border. A pocket of 8-10" fell over the higher Black Hills.

The precipitation started out as rain over south central South Dakota late on November 30 and then progressed westward and turned to snow. The snow ended Sunday morning December 2.

Records

Several new daily snowfall and precipitation records were set on December 1, 2018 for Downtown Rapid City and the Rapid City Airport.

Downtown Rapid City

6.7" of snow is a new record daily maximum snowfall for December 1. It breaks the old record of 4.3" set in 2015.
6.7" of snow is also the 4th Highest Daily Snowfall in the month of December. The highest December one-day snowfall was set December 5, 1906 when 9.0" of snow fell.
0.57" of precipitation is a new record daily maximum precipitation total for December 1. The old record was 0.28" set in 1968.

Rapid City Airport

6.2" of snow is a new record daily maximum snowfall for December 1. It breaks the old record of 4.2" set in 1980.
6.2" of snow is also the 3rd Highest Daily Snowfall in the month of December. The highest December one-day snowfall was set December 31, 1975 when 9.8" of snow fell.
0.52" of precipitation is a new record daily maximum precipitation total for December 1. The old record was 0.28" set in 1980.

Box Elder, SD
Courtesy Chevy F.

Snow
Photos

Snow

Storm Total Snowfall

Storm total snow reports listed by amount

 INCHES  LOCATION                 ST  COUNTY           TIME
 ------  -----------------------  --  --------------   -------
 15.00   COLOME                   SD  TRIPP            0921 AM
 11.50   16 SSE MISSION           SD  TODD             0700 AM
  9.50   4 SE DEERFIELD           SD  PENNINGTON       0600 AM
  8.00   2 NNW SAINT ONGE         SD  LAWRENCE         1253 PM
  8.00   2 SE TERRY PEAK          SD  LAWRENCE         1129 AM
  8.00   6 SW BEULAH              WY  CROOK            0800 AM
  8.00   7 E LAKEVIEW             SD  TODD             0700 AM
  8.00   9 ENE WEWELA             SD  TRIPP            0700 AM
  7.90   3 ESE CHEYENNE CROSSING  SD  LAWRENCE         0700 AM
  6.80   HILL CITY                SD  PENNINGTON       0700 AM
  6.70   4 NNE SUMMERSET          SD  MEADE            0700 AM
  6.70   1 E DOWNTOWN RAPID CITY  SD  PENNINGTON       0500 AM
  6.50   9 ESE DEVILS TOWER       WY  CROOK            1136 AM
  6.50   1 SSW RAPID VALLEY       SD  PENNINGTON       0827 AM
  6.50   8 NW VETAL               SD  BENNETT          0800 AM
  6.50   14 NNE MARTIN            SD  BENNETT          0700 AM
  6.40   RAPID CITY AIRPORT       SD  PENNINGTON       0500 AM
  6.00   LEAD                     SD  LAWRENCE         1024 AM
  6.00   2 ESE MISSION            SD  TODD             0938 AM
  6.00   5 E PORCUPINE            SD  OGLALA LAKOTA    0905 AM
  6.00   3 SSE HARDING            SD  HARDING          0800 AM
  6.00   2 SW NORRIS              SD  MELLETTE         0800 AM
  6.00   3 ENE KYLE               SD  OGLALA LAKOTA    0700 AM
  6.00   SUNDANCE                 WY  CROOK            0600 AM
  5.90   2 SSE DOWNTOWN RAPID CI  SD  PENNINGTON       0756 AM
  5.90   2 S DOWNTOWN RAPID CITY  SD  PENNINGTON       0700 AM
  5.60   1 ESE PACTOLA RESERVOIR  SD  PENNINGTON       0730 AM
  5.50   4 W DOWNTOWN RAPID CITY  SD  PENNINGTON       0700 AM
  5.40   6 W NEW UNDERWOOD        SD  PENNINGTON       0700 AM
  5.30   10 N OSAGE               WY  WESTON           1237 PM
  5.30   2 NE BOX ELDER           SD  PENNINGTON       0800 AM
  5.20   3 NE HISEGA              SD  PENNINGTON       0800 AM
  5.20   1 SSE DOWNTOWN SPEARFIS  SD  LAWRENCE         0800 AM
  5.20   5 NE ROCKERVILLE         SD  PENNINGTON       0700 AM
  5.20   3 SE SAINT ONGE          SD  LAWRENCE         0600 AM
  5.00   7 WSW FOLSOM             SD  CUSTER           0700 AM
  4.70   3 NNE JOHNSON SIDING     SD  PENNINGTON       0700 AM
  4.50   12 S QUINN               SD  PENNINGTON       0800 AM
  4.30   6 NNW DOWNTOWN SPEARFIS  SD  LAWRENCE         0700 AM
  4.00   DOWNTOWN HOT SPRINGS     SD  FALL RIVER       0700 AM
  4.00   2 W OPAL                 SD  MEADE            0700 AM
  4.00   DOWNTOWN HOT SPRINGS     SD  FALL RIVER       0700 AM
  4.00   1 NNE EDGEMONT           SD  FALL RIVER       0630 AM
  4.00   3 E DOWNTOWN NEWCASTLE   WY  WESTON           0600 AM
  3.70   11 NE MORRISEY           WY  WESTON           0700 AM
  3.50   1 NNW DOWNTOWN SPEARFIS  SD  LAWRENCE         0935 AM
  3.30   5 E ELM SPRINGS          SD  MEADE            0700 AM
  3.20   HERMOSA                  SD  CUSTER           0600 AM
  3.00   WINNER                   SD  TRIPP            1252 PM
  3.00   RED OWL                  SD  MEADE            0700 AM
  3.00   KADOKA                   SD  JACKSON          0700 AM
  3.00   1 S DOWNTOWN BELLE FOUR  SD  BUTTE            0700 AM
  3.00   ORAL                     SD  FALL RIVER       0700 AM
  2.80   7 N WOOD                 SD  MELLETTE         0700 AM
  2.80   7 NW CEDAR BUTTE         SD  MELLETTE         0700 AM
  2.60   3 WNW KADOKA             SD  JACKSON          0530 AM
  2.50   11 NNE WESTON            WY  CAMPBELL         0700 AM
  2.40   6 ENE NEWELL             SD  BUTTE            0700 AM
  2.40   EDGEMONT                 SD  FALL RIVER       0700 AM
  2.00   2 W IDEAL                SD  TRIPP            0925 AM

Photos:


Belle Fourche, SD Courtesy Brian J.	Devil's Tower, WY Courtesy Heike B.	Keystone, SD Courtesy Ana C.	Rapid City, SD Courtesy Toni B.


Rapid City, SD Courtesy Katie F.	Spearfish, SD Courtesy Brady R.	Rapid City, SD NWS Office

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Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

December 1-2, 2018 Snowfall Summary