Storm Summary Number 01 for Central Rockies into Upper Midwest
Winter Storm
NWS Weather Prediction Center College Park MD
900 AM CST Fri Dec 10 2021

...Snow storm impacting a swath of the Plains from Wyoming to
Wisconsin...

Winter Storm Warnings are in effect across western Colorado,
eastern Wyoming, southern South Dakota, northern Nebraska,
southern Minnesota, northern Iowa, much of central and northern
Wisconsin and the Upper Peninsula of Michigan.

Winter Weather Advisories are in effect for higher terrain of
northwest New Mexico and surrounding the aforementioned Winter
Storm Warnings.

High Wind Watch are in effect for the Northern Front Range of the
Colorado Rockies and portions of the eastern New Mexico.

Red Flag Warnings are in effect across eastern New Mexico,
Northwest Texas, Western Oklahoma, southern Kansas.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see www.weather.gov

At 800 AM CST...A low pressure center was deepening in the lee of
the Southeast Coloradro Rockies near La Junta with a central
pressure of 991 mb, or 29.26 inches of mercury.  A warm front
extends eastward across Kansas to southern Missouri, while, a
stationary front extends back across the southern Rockies to a
weaker low near the Four Courners area, with a cold front drapped
southward into southeast Arizona.  RADAR and observations denote
moderate to heavy mointain snows continue across Northwest New
Mexico and Western Colorado.  RADAR also depicts a shield of snow
across portion of Wyoming expanding over western South Dakota with
a narrowering but intense bacnd extending due east into southwest
Minnesota at this time.  Generally all features have been moving
east-northeast.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
CST Tue Dec 09 through 800 AM CST Thu Dec 10...

...COLORADO...
CRESTED BUTTE 6.2 N                  19.5                    
MOUNT ZIRKEL 4 SE                    15.8                    
GOULD 9 SSE                          11.6                    
GLENDEVEY 8 NW                       10.5                    
MONTROSE 1.6 E                       10.0                    
PAGOSA SPRINGS 2.5 W                  8.0                    
VAIL .9 NNW                           7.7                    
SILVERTHORNE 21 NW                    7.5                    
CAMERON PASS 9 SE                     7.4                    
GLENDEVEY 9 E                         7.4                    
MOUNT AUDUBON 3 NNE                   7.4                    
CAMERON PASS 7 SSE                    7.3                    
MOUNT CRESTED 4 NNW                   7.0                    
RANGELY 6 NNE                         7.0                    
COAL BAND PASS                        5.5                    

...NEBRASKA...
CHADRON 1 N                           7.0                    
CODY                                  7.0                    
VALENTINE 4 N                         6.0                    
MARSLAND 8 S                          3.5                    
MITCHELL 15 NNE                       2.5                    

...NEW MEXICO...
CANON PLAZA 11 NNW                    6.0                    
CHAMA 5 NW                            6.0                    
TOADLENA 5 SSW                        6.0                    

...SOUTH DAKOTA...
HOT SPRINGS 11 W                     15.0                    
HOT SPRINGS                          14.0                    
LONG VALLEY                          10.0                    
EDGEMOUNT .4 W                        9.5                    
JEWEL CAVE 8 NNE                      8.0                    
MISSION                               8.0                    
BURKE 4.2 SW                          7.0                    
ROCKERVILLE 4 NE                      6.6                    
HILL CITY                             6.5                    
HERMOSA 10 ESE                        6.0                    
RAPID CITY ARPT 7 SW                  6.0                    
WHITE RIVER 17 NW                     6.0                    

...WYOMING...
CENTENNIAL 1.1 NE                     9.5                    
LUSK                                  9.0                    
GLENDO                                7.0                    
NEWCASTLE 4 E                         7.0                    
DOUGLAS 4.3 WSW                       6.5                    
RAWLINS                               6.0                    
GILLETTE DOWNTOWN                     3.0                    
LARAMIE 1.8 ENE                       3.0                    
TEN SLEEP 4.8 NNW                     2.3                    


The surface low is expected to deepen in earnest over the next 6
hours and start to lift east-northeast out of Colorado into
western Kansas continuing strong southerly flow ahead of the storm
and supporting expansion of the strong heavy snow band across
South Dakota toward much of southern Minnesota and into Wisconsin,
while slowing in intensity across the central Rockies and Wyoming.
An additional 1-2" are possible across the lower elevations of
Wyoming and Northern Colorado though highest elevations in the
Colorado Rockies still may have an additional 4-8".  The band of
heaviest snows across SE South Dakota into Minnesota will see
6-10" with 9-12" across southern Minnesota just south of the Twin
Cites into Western Wisconsin.  Additionally south of the front,
strong gusty winds will develop across the southern Rockies into
the Southern High Plains resulting in a High Wind Watch but
support a fire danger where Red Flag Warnings are in effect across
much of northwest Texas, western Oklahoma into south-central
Kansas. 

The next Storm Summary will be issued by the Weather Prediction
Center at 900 PM CST. Please refer to your local National Weather
Service office for additional information on this event.

Gallina