Storm Summary Number 3 for Northern Rockies Early Season Snowstorm
NWS Weather Prediction Center College Park MD
300 AM MDT Sun Sep 29 2019

...Snow continues to fall heavily across portions of eastern
Washington, northern Idaho, and western Montana...

Winter Storm Warnings are in effect for parts of northeast
Washington, northern Idaho, central and western Montana. Winter
Weather Advisories are in effect for the Cascades and northern
Sierra Nevada, central and northeast Oregon, northeast Nevada,
central Idaho, southwest and northeast Montana, and northwest
Wyoming.

High Wind Warnings are in effect for parts of northwest Montana,
and central and southern Wyoming.

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

At 200 AM MDT...A strong upper low diving into the Northwest U.S.
continues to focus multiple surface waves of low pressure across a
large area of the Great Basin. Meanwhile, an unusually cold
airmass for late September is continuing to pour south across the
northern Rockies, northern Great Basin and northern High Plains
allowing for snow to fall across these regions. Surface
observations and radar continue to show areas of snow, some of it
heavy, across central and western Montana, northern Idaho, and
eastern Washington.

...Selected preliminary Storm Total Snowfall in inches from 600 PM
MDT Fri Sep 27 through 200 AM MDT Sat Sep 28...

...IDAHO...
COUGAR GULCH                          3.0                    
HUETTER 3 SW                          3.0                    
SANDPOINT                             3.0                    
SPIRIT LAKE                           3.0                    

...MONTANA...
BROWNING                             23.0                    
EAST GLACIER PARK                    21.0                    
HEART BUTTE 14 SW                    21.0                    
DUPUYER 15 SW                        20.0                    
KIOWA 3 SW                           15.0                    
CHOTEAU                              12.5                    
PIKE CREEK                           12.0                    
BRADY 5 N                             8.0                    
BADGER PASS 25 WSW                    7.0                    
AUGUSTA                               6.0                    
ZORTMAN                               6.0                    
GREAT FALLS 1 SSE                     5.6                    
CUT BANK                              4.5                    

...NEVADA...
COLD SPRINGS VALLEY 9 NNE             7.0                    

...WASHINGTON...
COOPER MOUNTAIN                       6.0                    
WAUCONDA 1 ENE                        6.0                    
BOYDS 4 W                             5.0                    
SPOKANE SOUTH HILL                    1.0                    

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

...CALIFORNIA...
BIRD SPRINGS PASS                      71                    
WHITE WATER WEST                       64                    
BEAR PEAK                              60                    

...COLORADO...
DOUGLAS PASS                           81                    
CAMEO 4 NE                             65                    
WILDHORSE                              63                    
PINTO                                  56                    
CRAIG-MOFFIT COUNTY AIRPORT            52                    
RIFLE 2 E                              48                    

...MONTANA...
ALZADA 3 SE                            56                    
WHITEFISH 6 N                          55                    
BAKER 1 SSE                            52                    
FINLEY POINT 3 NNW                     42                    

...NEVADA...
LUNDY                                  58                    
MERCURY 3 SW (DESERT ROCK)             58                    
FISH SPRINGS                           49                    


The low pressure system is forecast to track east across the
north-central Rockies through Sunday night and Monday. Snow will
continue to fall heavily at times, with an emphasis on portions of
eastern Washington, northern Idaho, and central to western
Montana. An additional 1 to 2 feet of snow is expected to fall
over areas of western Montana through early Monday, with locally
higher amounts in excess of 3 feet over the highest elevations.
Over northern Idaho, another 6 to 12 inches of snow is expected to
accumulate through early Monday. Parts of the Cascades will also
receive an additional 5 to 10 inches of snow while portions of the
northern Sierra Nevada will pick up several inches on average with
locally higher amounts possible. Strong winds will result in poor
visibility with blowing snow and drifting snow.

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

Orrison