Storm Summary Number 2 for Western U.S. Winter Storm
NWS Weather Prediction Center College Park MD
100 AM PST Tue Feb 12 2019

...Heavy rain and snow is falling across the Pacific Northwest and
the northern Great Basin as a cyclone invades from the Pacific
ocean...

Winter Storm Warnings and Advisories extend across most of
Washington, western Oregon, northern Idaho, northwest Montana and
northernmost California.

Winter Storm Watches are in effect for the Sierra Nevada of
eastern California.

Flood watches are in effect for portions of central California and
northwest Oregon.

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

At 1200 AM PST...A surface low with an estimated central pressure
of 1000 mb was locted about 160 miles west of Quillayute,
Washington. From this low, an occluded front stretched into
northwest Washington, with an associated cold front reaching
southwest and a stationary front draped across southern
Washington. Ahead of the system, National Weather Service Doppler
Radar and surface observations depict snow across much of
Washington, northern Oregon, northern Idaho, and westernmost
Montana. Rain was found along the lowest elevations and coastal
regions of Oregon and Washington.

...Selected preliminary Storm Total Snowfall in inches from 1200
AM PST Mon Feb 11 through 1200 AM PST Tue Feb 12...

...IDAHO...
MORES CREEK SUMMIT                   16.0                    
CASCADE 1 NNW                        12.0                    
BOGUS BASIN SKI AREA                  9.0                    
IDAHO CITY 9 SW                       7.0                    
PRARIE                                7.0                    
BANNER SUMMIT                         2.5                    

...OREGON...
HOOD RIVER 2 SW                      18.5                    
CORNUCOPIA 2 ESE                     17.0                    
HALFWAY 3 NE                         13.0                    
BINGHAM SPRINGS 3 NNE                12.0                    
ELGIN 4 WSW                          12.0                    
LA GRANDE                            12.0                    
LYLE 3 SW                            10.0                    
PENDLETON                             8.9                    
BRIGHTWOOD 6 N                        7.0                    
DETROIT DAM                           5.0                    
TIMBERLINE                            4.0                    
CLATSKANIE                            3.0                    
MOUNT HOOD MEADOWS                    3.0                    

...WASHINGTON...
GLENWOOD 1 NNW                       15.0                    
MOUNT SAINT HELENS                   15.0                    
SKI BLUEWOOD                         12.0                    
SNOWDEN 1 SSW                        12.0                    
PORT ORCHARD                          9.0                    
SEABECK 2 S                           9.0                    
OLYMPIA 1 W                           8.0                    
REDMOND 1 E                           7.5                    
PORT ANGELES                          6.5                    
SEATTLE-TACOMA AIRPORT 1 ESE          6.1                    
SEATTLE 2 NNW                         5.5                    
ARTONDALE                             5.0                    
DIXIE 4 ENE                           5.0                    
GIG HARBOR                            5.0                    
WALLA WALLA                           4.5                    


As the system slides down the coast, heavy snowfall will follow
suit.  Between now and Thursday, 2-3 feet of new snowfall is
expected across the Cascades of Washington and Oregon as well as
the higher elevations of Idaho and northwest Wyoming and the
Shasta and Siskiyou ranges of northern Califonia.  The Sierra
Nevada of eastern California is expected to receive 3-5 feet of
new snowfall from this system.  Such significant snowfall carries
an avalanche risk and threatens to close major roadways and
interstate routes in the area once heavy snow begins to pile up. 
At lower elevations, western Oregon and California's coastal
ranges are expected to receive 2-5" of rainfall into Thursday
afternoon, which could lead to flooding.

The next storm summary will be issued by the Weather Prediction
Center at 100 PM PST. Please refer to your local National Weather
Service office for additional information on this event.

Snell