THE WEATHER PREDICTION CENTER

COLLEGE PARK, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 01 FOR INTERMOUNTAIN WEST TO UPPER MIDWEST
WINTER STORM
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
900 AM CST SUN JAN 21 2018

...MODERATE TO HEAVY SNOW LOCATED IN PORTIONS OF THE ROCKIES IS
BEGINNING TO SPREAD INTO THE PLAINS...

BLIZZARD WARNINGS ARE IN EFFECT FOR PORTIONS OF THE CENTRAL PLAINS
AND THE UPPER MIDWEST.

WINTER STORM WARNINGS...WATCHES...AND WINTER WEATHER ADVISORIES
ARE IN EFFECT FOR THE SOUTHERN AND CENTRAL ROCKIES...NORTHERN AND
CENTRAL PLAINS...PORTIONS OF THE MISSISSIPPI VALLEY...AND PORTIONS
OF THE UPPER GREAT LAKES.

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

AT 800 AM CST...A SURFACE LOW WITH A CENTRAL PRSSURE OF 1001 MB OR
29.56 INCHES WAS LOCATED IN FAR NORTHEAST NEW MEXICO. FROM THIS
LOW...A COLD FRONT STRETCHED SOUTHWARD INTO THE SOUTHERN HIGH
PLAINS...WHILE A FRONT STRETCHED EASTWARD INTO THE CENTRAL PLAINS
AND OHIO VALLEY. WEST AND NORTH OF THESE FRONTS...NATIONAL WEATHER
SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
GENERALLY MODERATE SNOW WITH POCKETS OF HEAVY SNOW FALLING IN THE
CENTRAL AND SOUTHERN ROCKIES AND CENTRAL HIGH PLAINS. LIGHT TO
MODERATE SNOW WAS OCCURRING IN PORTIONS OF NEBRASKA AND SOUTH
DAKOTA.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 600 PM CST FRI JAN
19 THROUGH 800 AM CST SUN JAN 21...

...ARIZONA...
FLAGSTAFF                             5.6                    
SOUTH RIM                             4.0                    
PRESCOTT                              3.0                    

...COLORADO...
RICO                                 10.5                    
GEORGETOWN 3 S                        8.2                    
ECHO LAKE                             8.0                    
SILVERTON                             8.0                    
ROCKWOOD 6.7 N                        7.8                    
TELLURIDE                             5.5                    
BOULDER 1.9 SE                        4.6                    
GRAND JUNCTION 4.1 ENE                4.5                    
DENVER 6.3 SSE                        3.8                    
LAFAYETTE                             3.5                    

...NEW MEXICO...
LLANO LARGO 5 SSE                     5.0                    
AMALIA 11 ENE                         4.0                    
CANJILON 7 E                          4.0                    
CHAMA 5 NW                            4.0                    

...SOUTH DAKOTA...
EDGEMONT 6 NNW                       11.0                    
HOT SPRINGS                           8.5                    
WALL                                  6.0                    
MOUNT RUSHMORE                        5.0                    

...UTAH...
MANILA 16 ESE                        15.0                    
SUMMIT PARK                          14.0                    
SANDY                                12.0                    
SALT LAKE CITY                       11.0                    

...WYOMING...
ENCAMPMENT 10 WSW                     9.6                    
DOUGLAS                               7.0                    
LUSK                                  7.0                    
GILLETTE                              4.0                    

...SELECTED STORM TOTAL SNOWFALL IN INCHES WHERE THE EVENT HAS
ENDED...

...IDAHO...
PRESTON 20 NE                         9.1                    
ISLAND PARK 8 NW                      8.4                    

...MONTANA...
COOKE CITY                           12.0                    
NYE 14 W                             10.0                    
WILSALL 13 ENE                        8.0                    

...NEVADA...
ELY                                  18.8                    
RUTH                                 14.0                    
HEAVENLY VALLEY                      12.0                    
PIOCHE                                8.0                    


THE SURFACE LOW IS EXPECTED TO STRENGTHEN AND TRACK NORTHEASTWARD
OVER THE NEXT COUPLE OF DAYS...MOVING THROUGH THE PLAINS AND
MIDDLE MISSISSIPPI VALLEY AND INTO THE UPPER MIDWEST. AS IT
MOVES...HEAVY SNOW IS FORECAST TO THE WEST AND NORTH OF THE LOW.
SNOW OF 8 TO 16 INCHES IS POSSIBLE IN A SWATH FROM THE CENTRAL
HIGH PLAINS THROUGH PORTIONS OF THE MIDDLE AND UPPER MISSISSIPPI
VALLEY AND INTO THE UPPER GREAT LAKES REGION. IN COMBINATION WITH
STRONG WINDS...THIS WILL LEAD TO BLIZZARD CONDITIONS FOR SOME
LOCATIONS. ADDITIONALLY...FREEZING RAIN IS A THREAT WITH THIS
WINTER STORM...WITH LIGHT ACCUMULATING FREEZING RAIN POSSIBLE
SOUTH OF THE HEAVY SNOW AREA IN THE CENTRAL PLAINS TO MISSISSIPPI
VALLEY ON SUNDAY AND SUNDAY NIGHT. HOWEVER...THE BETTER CHANCE FOR
ACCUMULATING FREEZING RAIN WILL BE FOR THE INTERIOR NORTHEAST
BEGINNING MONDAY...WITH ACCUMULATIONS UP TO A TENTH OF AN INCH
POSSIBLE.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 300 PM CST. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

TATE




Last Updated: 958 AM EST SUN JAN 21 2018