Storm Summary Number 5 for Northern Rockies Early Season Snowstorm
NWS Weather Prediction Center College Park MD
300 PM MDT Sun Sep 29 2019

...Moderate to heavy snow continues across portions of eastern
Washington, northern Idaho, and western to central Montana...

Blizzard Warnings are in effect for part of northwestern Montana.
Winter Storm Warnings and Winter Weather Advisories remain in
effect for portions of the Northern Great Basin, Northern Rockies,
and Northern High Plains, as well as northern portions of the
Sierra Nevada.

High Wind Warnings are in effect for south-central Wyoming. Wind
Advisories are in effect for portions of the Rockies and High
Plains.

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

At 200 PM MDT...A strong upper-level low positioned over the
Northwest U.S. continues to focus multiple waves of surface low
pressure across a large area of the Great Basin and Central
Rockies. Meanwhile, an unusually cold airmass for late September
is in place from 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 falling heavily at times, across eastern
Washington, northern Idaho, and central and western Montana.

...Selected preliminary Storm Total Snowfall in inches from 600 PM
MDT Fri Sep 27 through 200 PM MDT Sun Sep 29...

...CALIFORNIA...
MEYERS 2 NW                           1.5                    
TAHOE CITY                            1.5                    

...IDAHO...
POST FALLS 4 SSE                      9.0                    
SALMON 2 W                            5.0                    
ATHOL                                 4.0                    
SPIRIT LAKE 3.6 E                     4.0                    
COUGAR GULCH                          3.0                    
HUETTER 3 SW                          3.0                    
SANDPOINT                             3.0                    

...MONTANA...
BROWNING                             40.0                    
ST MARY                              38.0                    
DUPUYER CREEK 15 S                   32.0                    
BADGER PASS 25 WSW                   30.0                    
EAST GLACIER                         24.0                    
PIKE CREEK                           23.0                    
BYNUM 17 WSW                         22.0                    
HEART BUTTE 14 SW                    21.0                    
KIOWA 3 SW                           15.0                    
AUGUSTA                              14.0                    
CHOTEAU                              14.0                    
GREAT FALLS 5 WSW                    14.0                    
LLOYD 13 E                           14.0                    
CUT BANK                             12.0                    

...NEVADA...
COLD SPRINGS VALLEY 9 NNE             8.0                    

...WASHINGTON...
BOYDS 4 W                            19.0                    
COOPER MOUNTAIN                      11.0                    
METHOW 9 SSW                         11.0                    
COLVILLE 6 ENE                        8.5                    
REPUBLIC 13 E                         6.0                    
SHERMAN PASS                          6.0                    
WAUCONDA 1 ENE                        6.0                    
SPOKANE NWS                           3.1                    

...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                    
GREAT DIVIDE 2 SW                      62                    
MEEKER ARPT                            61                    
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                    

...UTAH...
MOAB 17 NW/CANYONLANDS FIELD ARPT      58                    

...WYOMING...
DAD 10 E                               69                    
DIXON 2 E                              60                    


A surface low pressure system is expected to consolidate and move
into the Northern Plains by Monday morning, while the deep
upper-level low remains centered across the Northwest. Snow, heavy
at times, will continue through Monday particularly for
northwestern Wyoming, which could receive an additional 1-2 feet
of snow in higher elevations across the Rocky Mountain Front.
Elsewhere in the Northwest, 2-6 inches of additional snow is
possible with locally higher amounts, while northern portions of
the Sierra Nevada could see around a foot of snow. Strong winds
could result in poor visibility with blowing snow and drifting
snow.

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

Tate