THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 6 FOR EARLY WINTER STORM
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
900 AM CST SAT DEC 1 2007

...MODERATE TO HEAVY RAINS ARE PUSHING THROUGH THE DESERT
SOUTHWEST WHILE SNOW FALLS ACROSS THE CENTRAL ROCKIES AND A WINTRY
MIX OF PRECIPITATION EDGES THROUGH THE CENTRAL PLAINS STATES...

FLASH FLOOD WATCHES HAVE BEEN ISSUED FOR MUCH OF THE STATE OF
ARIZONA...AS WELL AS AREAS OF SOUTHERN UTAH AND EXTREME
SOUTHWESTERN COLORADO.

FLASH FLOOD WARNINGS ARE IN EFFECT FOR A SMALL AREA OF
SOUTHWESTERN UTAH.

A BLIZZARD WARNING HAS BEEN ISSUED FOR A SMALL PORTION OF
SOUTHWESTERN COLORADO.

WINTER STORM WARNINGS ARE IN EFFECT FOR A LARGE PORTION OF THE
NORTHERN TIER STATES ALONG WITH THE HIGH TERRAIN OF THE INTER
MOUNTAIN WEST. SPECIFICALLY...WINTER STORM WARNINGS ARE IN EFFECT
FOR EXTREME NORTHEASTERN NEBRASKA...EASTERN SOUTH
DAKOTA...SOUTHEASTERN NORTH DAKOTA...MUCH OF MINNESOTA...THE
NORTHERN HALF OF IOWA...WISCONSIN...NORTHERN ILLINOIS...EXTREME
NORTHWESTERN INDIANA...THE UPPER PENINSULA OF MICHIGAN...AND MUCH
OF LOWER MICHIGAN. FARTHER WEST...WARNINGS HAVE BEEN ISSUED FOR
THE HIGH TERRAIN OF THE FOLLOWING AREAS...WESTERN
COLORADO...NORTHERN NEW MEXICO...MUCH OF UTAH...AND SOUTHERN
WYOMING.

HEAVY SNOW WARNINGS ARE IN EFFECT FOR THE MOUNTAINS OF
NORTHEASTERN UTAH AND NORTHWESTERN COLORADO.

ICE STORM WARNINGS COVER A SIGNIFICANT PORTION OF THE CENTER OF
THE U.S. WHICH INCLUDES NORTHERN KANSAS...MUCH OF NEBRASKA...THE
SOUTHERN HALF OF IOWA...NORTHERN MISSOURI...AND WESTERN ILLINOIS.

FREEZING RAIN ADVISORIES COVER SIMILAR AREAS AS THE ICE STORM
WARNINGS WHICH ARE IN EFFECT ACROSS NORTHWESTERN AND EXTREME
NORTHEASTERN KANSAS...PARTS OF NORTHERN MISSOURI...CENTRAL
ILLINOIS...AND A SMALL PORTION OF CENTRAL COLORADO.

WINTER STORM WATCHES ARE IN EFFECT FOR MUCH OF LOWER
MICHIGAN...EXTREME NORTHERN INDIANA AND NORTHWESTERN
OHIO...CENTRAL PENNSYLVANIA...MUCH OF NEW YORK...VERMONT...WESTERN
MASSACHUSETTS...NORTHWESTERN CONNECTICUT...AND NORTHWESTERN NEW
JERSEY.

WINTER WEATHER ADVISORIES HAVE BEEN ISSUED FOR NORTHEASTERN
COLORADO...MUCH OF THE NEBRASKA PANHANDLE...AREAS OF SOUTHERN
SOUTH DAKOTA...EXTREME SOUTHEASTERN WYOMING..SMALL PORTIONS OF
EASTERN ILLINOIS AND NORTHWESTERN INDIANA...LOWER MICHIGAN...MUCH
OF THE NORTHERN TIER OF OHIO...AND WESTERN PENNSYLVANIA.

SNOW ADVISORIES COVER A LARGE GEOGRAPHIC AREA WHICH REMAIN IN
EFFECT ACROSS SOUTHERN NEVADA...SOUTHEASTERN ARIZONA...PORTIONS OF
NORTHERN AND CENTRAL UTAH...A COUPLE OF SMALL AREAS OF CENTRAL
COLORADO...MUCH OF WYOMING AND SOUTH DAKOTA...NORTHWESTERN
NEBRASKA...PORTIONS OF EASTERN NORTH DAKOTA...AND NORTHERN
MINNESOTA.

THIS IS LIKELY TO BE A LARGE AND WIDESPREAD WINTER STORM AND
FORECASTS MAY BE UPDATED FREQUENTLY.  TO GET THE LATEST
UPDATES...PLEASE VIEW A GRAPHICAL DEPICTION OF CURRENT WATCHES AND
WARNINGS ACROSS THE UNITED STATES AVAILABLE AT: WWW.WEATHER.GOV

THIS WIDESPREAD WINTER STORM WILL MOVE FROM THE SOUTHWESTERN
UNITED STATES AND ROCKIES THROUGH THE CENTRAL AND INTO THE
NORTHEASTERN STATES THIS WEEKEND. NUMEROUS WINTER STORM WATCHES
FROM THE CENTRAL ROCKIES THROUGH THE PLAINS AND INTO THE GREAT
LAKES HAVE BEEN CHANGED TO WARNINGS. THE STORM WILL BRING A
MIXTURE OF HEAVY RAIN...SNOW...SLEET...AND FREEZING RAIN TO A
LARGE PORTION OF THE NATION.

AT 835 AM CST...NATIONAL WEATHER SERVICE RADARS SHOWED CLUSTERS OF
SHOWERS MOVING TOWARD THE EAST THROUGH CENTRAL ARIZONA AND EASTERN
NEW MEXICO. FARTHER NORTH...A MIX OF RAIN AND SNOW IS FALLING
ACROSS THE CENTRAL ROCKIES AND THE WASATCH MOUNTAINS. A MAJORITY
OF THE PRECIPITATION IS IN THE FORM OF SNOW ACROSS THESE AREAS AS
TEMPERATURES CONTINUE TO HOVER AROUND THE FREEZING MARK. FARTHER
EAST...WITH BELOW FREEZING TEMPERATURES AT THE SURFACE AND ABOVE
FREEZING TEMPERATURES JUST ABOVE THE SURFACE...A LARGE AREA OF
SLEET AND FREEZING RAIN HAS BEGUN TO FALL ACROSS MANY CITIES IN
THE CENTRAL PLAINS STATES.

...SELECTED STORM TOTAL RAINFALL AMOUNTS IN INCHES FROM 6OO AM CST
THUR NOV 29 THROUGH 900 AM CST SAT DEC 1...

...ARIZONA...

MOUNT LEMMON                                 4.73
FRAESFIELD MOUNTAIN                          3.54
WHITE TAIL NEAR PALISADES                    3.26
DAN SADDLE                                   3.11
MCDOWELL MOUNTAIN                            2.44
SANTA CRUZ RIVER AT INA RD                   2.20
ADOBE DAM                                    2.20
MANNING CAMP                                 2.13
AJO DETENTION BASIN                          2.05
PICTURE ROCKS                                2.05
SCOTTSDALE MUNI ARPT                         2.03
FLAGSTAFF PULLIAM AIRPORT                    1.98 
PHOENIX SKY HARBOR AIRPORT                   1.24
TUCSON NATIONAL WEATHER SERVICE OFFICE       1.23

...CALIFORNIA...

CAMP PENDLETON MCAF                          2.86
CARLSBAD/MCCLELLAN-PALOMAR APT               2.74
OCEANSIDE                                    2.71
RAMONA                                       2.60
MARCH AFB/RIVERSIDE                          2.31
TANBARK                                      1.94 
CLAREMONT                                    1.68 
TWENTYNINE PALMS                             1.66
SAN DIEGO/MONTGOMERY FIELD                   1.60
SANTA ANA/JOHN WAYNE ARPT                    1.17
LOS ALAMITOS AAF                             1.15
PALMDALE                                     0.75 (DAILY RECORD)
DOWNTOWN LOS ANGELES                         0.56

...NEVADA...

WINNEMUCCA MUNICIPAL AIRPORT                 2.89 

...UTAH...

ST. GEORGE MUNICIPAL AIRPORT                 1.75 
BLANDING                                     1.70 

...COLORADO...

DURANGO 7.1 N                                2.73        

...NEW MEXICO...

CLOUDCROFT 1.8 SW                            2.25
SUNSPOT 0.07 N                               2.10 
SILVER CITY 3.4 N                            2.05 
RUIDOSO 3.9 NNW                              2.00 
VIRDEN 30.1 N                                1.60 

...SELECTED STORM TOTAL SNOWFALL AMOUNTS IN INCHES FROM 6OO AM CST
THUR NOV 29 THROUGH 900 AM CST SAT DEC 1...

...UTAH...

HEBER                                         5.0 
BRIGHTON CREST                                4.0 
DEER VALLEY DALY WEST                         4.0 
KAMAS                                         3.0 
ALTA UDOT                                     2.5

...COLORADO...

SOUTH FORK 4.1 SW                            11.3 
FAIR PLAY 2.7 WNW                             8.5 

...WYOMING...

MOOSE 0.4 S                                   5.0 
THAYNE 4.2 NNE                                4.3 
ROCK RIVER 9.6 WSW                            3.9 
DAYTON 11.9 WNW                               3.0


A STRONG AREA OF LOW PRESSURE CURRENTLY IN CENTRAL COLORADO WILL
MOVE EAST-NORTHEASTWARD TOWARD THE GREAT LAKES BY SUNDAY MORNING. 
HEAVY RAINS WILL CONTINUE ACROSS ARIZONA AND SOUTHERN NEW MEXICO
INTO SOUTHERN UTAH ON SATURDAY WHILE HEAVY SNOW WILL SPREAD ACROSS
HIGHER ELEVATIONS OF UTAH...WESTERN COLORADO...AND SOUTHERN
WYOMING.  A LARGE AREA OF SNOW...SLEET...AND FREEZING RAIN WILL
CONTINUE TO FALL OVER THE CENTRAL PLAINS ON SATURDAY AND SPREAD
NORTHEASTWARD TOWARD THE UPPER MIDWEST AND GREAT LAKES LATER IN
THE DAY ON SATURDAY. SNOW WILL ALSO SPREAD INTO PORTIONS OF THE
NORTHEAST BY LATE SATURDAY NIGHT AND SUNDAY.

HEAVY SNOW IS EXPECTED OVER THE CENTRAL ROCKIES AND MUCH OF THE
CENTRAL AND NORTHERN PLAINS AND UPPER MIDWEST BY SATURDAY NIGHT.
SIGNIFICANT ACCUMULATIONS OF ICE ARE ALSO POSSIBLE ACROSS THE
CENTRAL PLAINS AND MIDWEST. PORTIONS OF THE NORTHEAST MAY ALSO SEE
SNOW...SLEET AND SOME ICE BY SUNDAY.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 9 AM CST. PLEASE REFER TO YOUR LOCAL NATIONAL
WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

RUBIN-OSTER




Last Updated: 958 AM EST SAT DEC 01 2007