STORM SUMMARY NUMBER 1 FOR NORTHERN ROCKIES AND NORTHERN PLAINS
EARLY SEASON WINTER STORM
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
300 AM MDT SAT OCT 11 2008

...EARLY SEASON HEAVY SNOWS AFFECTING THE NORTHERN ROCKIES AND
NORTHERN HIGH PLAINS...

WINTER STORM WARNINGS...WATCHES...AND ADVISORIES HAVE BEEN ISSUED
ACROSS THE NORTHERN ROCKIES AND THE NORTHERN PLAINS.  A BLIZZARD
WATCH IS ALSO IN EFFECT FOR PORTIONS OF SOUTHWESTERN WYOMING.

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

AT 300 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADARS AND
SURFACE OBSERVATIONS INDICATED LIGHT TO MODERATE SNOW WAS FALLING
ACROSS PORTIONS OF CENTRAL TO NORTHERN WYOMING...NORTHEASTWARD
INTO SOUTHERN MONTANA...AND ALSO IN NORTHWESTERN SOUTH DAKOTA.  

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 700 AM MDT FRI OCT
10 THROUGH PRESENT...

...MONTANA...
NYE                                          16.0
DEAN 11 SSW                                  16.0
MC LEOD 7 S                                  14.0   
BUTTE 8 S                                    12.5
ROUNDUP 10 SE                                12.0 
TENDOY 3 S                                   11.0
MELVILLE 7 WNW                               11.0
BADGER PASS                                   9.0
FISHTAIL                                      8.0
BEAVERHEAD                                    8.0
DEER LODGE                                    6.0
BILLINGS AIRPORT                              4.2
HELENA 3 SSE                                  4.0

...IDAHO...
CHALLIS                                       9.5
MOOSE CREEK                                   9.0

...WYOMING...
LANDER                                        7.0
SUNDANCE 7.0 SSE                              6.0

...SOUTH DAKOTA...
HANNA                                         6.0
BELLE FOURCHE                                 5.7

AN UNSEASONABLY COLD AIRMASS IN PLACE ACROSS THE NORTHERN ROCKIES
AND NORTHERN PLAINS AND AN ANOMALOUSLY STRONG MID TO UPPER LEVEL
LOW MOVING THROUGH THE GREAT BASIN WILL PRODUCE WIDESPREAD HEAVY
SNOWFALL SATURDAY INTO SUNDAY FROM EASTERN IDAHO...ACROSS CENTRAL
TO NORTHERN WYOMING...A LARGE PORTION OF MONTANA AND INTO WESTERN
PORTIONS OF NORTH AND SOUTH DAKOTA.  SNOWFALL ACCUMULATIONS OF 12
TO 18 INCHES POSSIBLE ACROSS THESE AREAS...WITH ISOLATED HEAVIER
TOTALS LIKELY ACROSS THE HIGHER TERRAIN OF THE NORTHERN ROCKIES.  
 

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 900 AM MDT SATURDAY. PLEASE REFER TO YOUR
LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION
ON THIS EVENT.
 
COLLINS/ORAVEC