STORM SUMMARY NUMBER 02 FOR WESTERN U.S. WINTER STORM
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 AM PST SAT DEC 07 2013

...VIGOROUS STORM SYSTEM BRINGING SNOW TO THE WESTERN STATES...  

WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
FROM PARTS OF OREGON AND CALIFORNIA EASTWARD INTO THE
INTERMOUNTAIN STATES.

HIGH WIND WARNINGS ARE IN EFFECT FOR PORTIONS OF SOUTHERN
CALIFORNIA.

FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 600 AM PST...A SURFACE LOW WITH A CENTRAL PRESSURE OF 1005
MB...29.68 INCHES...WAS LOCATED IN NORTHERN NEVADA AND MOVING
TOWARDS THE EAST-SOUTHEAST. A FRONTAL BOUNDARY EXTENDED SOUTHWARD
FROM THE SURFACE LOW ACROSS CENTRAL NEVADA AND CALIFORNIA AND OUT
INTO THE PACIFIC OCEAN. A PLUME OF MOISTURE FROM THE PACIFIC OCEAN
ASSOCIATED WITH THE STORM SYSTEM WAS MOVING INTO A COLD AIR MASS
OVER THE WESTERN U.S...RESULTING IN PRECIPITATION FALLING IN THE
FORM OF SNOW FOR MANY AREAS. NATIONAL WEATHER SERVICE RADARS AND
SURFACE OBSERVATIONS INDICATED MODERATE TO HEAVY RAIN WAS MOVING
ACROSS CENTRAL CALIFORNIA JUST AHEAD OF THE SURFACE BOUNDARY.
LIGHT RAIN WAS ALSO FALLING BEHIND THE SURFACE BOUNDARY IN
NORTHERN CALIFORNIA. IN THE HIGHER TERRAIN OF THE INTERMOUNTAIN
WEST...SCATTERED POCKETS OF LIGHT SNOW WAS REPORTED. A FEW VERY
ISOLATED SNOW SHOWERS WERE ALSO REPORTED FARTHER BACK INTO OREGON.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 700 AM PST FRI DEC
06 THROUGH 600 AM PST SAT DEC 07...

...CALIFORNIA...
TWAIN HARTE 2 W                      12.0                    
HAPPY CAMP                           10.0                    
NEVADA CITY 3 SE                      9.0                    
SEIAD VALLEY                          7.5                    
SHINGLETOWN 5.3 ENE                   7.5                    
MOUNT SHASTA 3 SSW                    7.0                    
GRASS VALLEY                          6.5                    
ALTA SIERRA 2 N                       6.0                    
ANDERSON 4 NW                         6.0                    
BIG BAR 2 ENE                         6.0                    
SIMS 2 NW                             6.0                    
TRUCKEE                               6.0                    

...NEVADA...
SPARKS 1.7 E                          4.5                    
RENO 4 NW                             3.0                    

...OREGON...
MODOC POINT 7 WNW                    12.0                    
EUGENE SW                            10.0                    
ELMIRA                                9.0                    
PHILOMATH                             9.0                    
VENETA 2 N                            9.0                    
CRESWELL                              8.0                    
PLEASANT HILL                         8.0                    
COBURG 0.3 W                          7.5                    
CHILOQUIN 3 W                         7.0                    
EAGLE POINT                           7.0                    
GOLD HILL 4 NW                        7.0                    
LA PINE 5 NNW                         7.0                    


THE STORM SYSTEM IS FORECAST TO CONTINUE MOVING SOUTHEASTWARD
TODAY...REACHING THE FOUR CORNERS REGION BY TONIGHT. SNOW WILL
CONTINUE TO SPREAD ACROSS MUCH OF THE INTERMOUNTAIN WEST TODAY AND
INTO THE CENTRAL ROCKIES. SNOWFALL ACCUMULATIONS OF 2 TO 6 INCHES
IS POSSIBLE ACROSS THE INTERMOUNTAIN WEST...WITH HIGHER AMOUNTS UP
TO 10 INCHES POSSIBLE IN THE HIGHEST ELEVATIONS OF UTAH AND
COLORADO. OVERNIGHT TONIGHT...AS THE SYSTEM BEGINS TO MOVE INTO
THE CENTRAL U.S...SNOW IS EXPECTED TO DEVELOP ACROSS PARTS OF THE
CENTRAL PLAINS AND UPPER MISSISSIPPI VALLEY...WITH MINOR
ACCUMULATIONS OF GENERALLY LESS THAN 4 INCHES POSSIBLE. FARTHER
SOUTH...SOME FREEZING RAIN COULD DEVELOP ACROSS THE LOWER
MISSISSIPPI VALLEY AND INTO THE TENNESSEE VALLEY BUT ACCUMULATIONS
ARE EXPECTED TO BE LESS THAN A TENTH OF AN INCH...WITH LOCALLY
HIGHER AMOUNTS UP TO A QUARTER OF AN INCH POSSIBLE. BY SUNDAY A
MIXTURE OF SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO SPREAD
EASTWARD ACROSS THE OHIO RIVER VALLEY AND INTO THE MID-ATLANTIC
STATES. ICE ACCUMULATIONS UP TO A QUARTER OF AN INCH ARE POSSIBLE
FOR THE OHIO AND MID-ATLANTIC REGIONS THROUGH MONDAY
MORNING...WITH HIGHER AMOUNTS UP TO HALF AN INCH OR MORE FOR MUCH
OF THE CENTRAL APPALACHIANS. FROM THE MID-ATLANTIC TO THE
NORTHEAST...SNOWFALL TOTALS SHOULD BE LESS THAN ABOUT 4 INCHES.

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.

MONARSKI