Storm Summary Number 04 for Northern Rockies to Northern Plains
Snowstorm
NWS Weather Prediction Center College Park MD
900 AM MDT Thu Oct 10 2019

...A powerful early-season snowstorm is bringing strong winds and
heavy snows to the Rockies and High Plains...

Winter Storm Warnings, Watches, and Advisories are in effect from
the Northern Plains into the Central Rockies, northwestern
Nebraska, and northwestern Minnesota.

Freeze Warnings and Watches are in effect for portions of the
Pacific Northwest, Southwest, and the Central to Southern Plains.

Red Flag Warnings and Wind Advisories are in effect for portions
of California, the Southwest, and the Central Great Basin.

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

At 800 AM MDT...Surface observations indicated sharply colder air
spilling south behind a strong front extending from Minnesota
through the Central Plains, Central Rockies, and northern Arizona.
A surface low with a central pressure of 1002 mb, or 29.59 inches,
was present along the front near Salina, Kansas. National Weather
Service radar and surface observations showed generally moderate
snow with embedded heavy snow was falling across west-central
portions of the Dakotas into eastern Wyoming, western Nebraska,
and north-central Colorado. Snow has begun to taper off for much
of Montana and central Wyoming. Gusty winds were occurring behind
the front across the Plains, Rockies, and Great Basin.

...Selected preliminary Storm Total Snowfall in inches from 800 AM
MDT Tue Oct 08 through 800 AM MDT Thu Oct 10...

...COLORADO...
STEAMBOAT SPRINGS 1.9 E               6.6                    
ESTES PARK 1.8 S                      6.0                    
MILNER 4 NE                           4.5                    
BOULDER 2.1 W                         2.5                    
FORT COLLINS 2.5 NW                   2.3                    
LOVELAND 1 NE                         2.0                    

...MONTANA...
PONY                                 24.0                    
HELENA 7 SW                          18.0                    
CLANCY 3 W                           16.5                    
FISHTAIL 18.1 SW                     16.0                    
HOMESTAKE PASS                       13.5                    
WHITEHALL 14 W                       13.5                    
MCLEOD 5.9 WSW                       13.0                    
JANEY 8 S                            12.0                    
MARIAS PASS                          12.0                    
GREAT FALLS 5 SSW                    11.5                    
LEWISTON                             10.0                    

...NEBRASKA...
CHADRON 11.6 S                        7.0                    
CHADRON 0.5 W                         5.5                    
GERING 0.4 E                          4.3                    
HEMINGFORD 10.1 NNE                   4.0                    

...NORTH DAKOTA...
DICKINSON 0.4 NNE                     4.0                    
NEW SALEM 5 NW                        3.8                    
HAZEN 0.4 SW                          3.5                    
WESTHOPE 0.1 N                        2.4                    
BISMARCK NWS                          1.2                    

...SOUTH DAKOTA...
RAPID CITY 4.9 ESE                   12.8                    
LEAD 5.5 SSW                          8.0                    
HILL CITY 4.4 SSW                     7.0                    
BLACK HAWK                            6.0                    
EDGEMONT 0.4 W                        5.8                    

...WYOMING...
DOUGLAS 4.3 WSW                       4.2                    
CODY 2.4 WSW                          4.0                    
STORY 2.1 WSW                         4.0                    
CHEYENNE 2 E                          2.2                    
CHEYENNE NWS                          0.7                    

...Selected preliminary Peak Wind gusts in miles per hour earlier
in the event...

...COLORADO...
BUCKLEY AFB 1 N                        66                    
BLENDE 5 NE/PUEBLO ARPT                62                    
CHERAW 4 S/LA JUNTA ARPT               62                    
LIMON 1 E                              62                    
LAMAR ARPT                             60                    
BUFORD 13 ENE                          58                    
CRAIG-MOFFAT CO ARPT                   58                    
DOUGLAS PASS                           57                    

...IDAHO...
ROVER                                  57                    
MOBURG CANYON                          55                    

...SOUTH DAKOTA...
REVA 13 SSW                            56                    

...UTAH...
EAGLE MOUNTAIN                         57                    
WINDY PEAK                             57                    
OGDEN PEAK                             56                    
WEST GRANITE                           55                    
FREMONT ISLAND - MILLER HILL           54                    

...Selected preliminary Storm Total Snowfall in inches where the
event has ended...

...IDAHO...
GIBBONSVILLE 10 NNW                  8.0                     
RATHDRUM 4 NNE                       7.7                     
LEADORE 1 NW                         7.0                     
HAYDEN 1 SE                          6.0                     
CAREYWOOD                            5.0                     
RED RIVER HOT SPRING                 5.0                     
AMERICAN FALLS 1 SE                  4.0                     

...WASHINGTON...
SPOKANE 1 S/SOUTH HILL               5.2                     
FOUR LAKES 2 NE                      4.0                     
MARSHALL                             4.0                     


As the front moves slowly eastward through the Plains and into the
Mississippi Valley, snow will continue to develop behind it in the
Northern and Central Plains. The Central Rockies will see snow
taper off later this evening, but not before receiving an
additional 2 to 6 inches of snow today. The storm is forecast to
consolidate farther north in northern Minnesota tonight and remain
quasi-stationary there through Saturday. Thus, heavy snow will
persist across the Northern Plains on the backside of the low.
Potentially historic October snowfall totals are likely across
portions of central and eastern Dakotas - where a swath of
accumulations well exceeding 24 inches is expected in east-central
North Dakota. Farther east, accumulations of 4 to 8 inches are
expected across northwestern Minnesota. Blowing snow is also
expected, with blizzard conditions possible. Some mixed
precipitation is also possible for portions of the Dakotas along
the transition zone between snow and rain.

The next Storm Summary will be issued by the Weather Prediction
Center at 300 PM MDT. Please refer to your local National Weather
Service office for additional information on this event.

Mullinax