THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 01 FOR CHRISTMAS 2009 WINTER STORM
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 
900 AM CST WED DEC 23 2009
 
...DANGEROUS WINTER STORM WILL AFFECT MUCH OF THE CENTRAL AND
PARTS OF THE EASTERN U.S. THROUGH CHRISTMAS WITH HEAVY SNOW AND
HEAVY RAIN. THE MAGNITUDE OF THE SYSTEM AND SLOW MOVEMENT WILL
SEVERELY IMPACT HOLIDAY GROUND AND AIR TRAVEL.
 
WINTER STORM WARNINGS COVER MUCH OF THE CENTRAL AND NORTHERN
PLAINS INTO THE UPPER MIDWEST...WINTER WEATHER ADVISORIES SURROUND
THIS AREA. FLOOD AND FLASH FLOOD WATCHES ARE IN EFFECT FOR
PORTIONS OF THE MIDDLE AND LOWER MISSISSIPPI VALLEY STATES.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 800 AM CST...A 1006 MB LOW PRESSURE CENTER WAS JUST NORTHWEST
OF BARTLESVILLE...OKLAHOMA WITH A COLD FRONT EXTENDING INTO
WESTERN TEXAS. A STATIONARY FRONTAL BOUNDARY EXTENDED FROM THE LOW
INTO THE LOWER OHIO VALLEY. NATIONAL WEATHER SERVICE DOPPLER
RADARS SHOWED A LARGE...AND EXPANDING AREA OF PRECIPITATION OVER
THE CENTRAL U.S.. SNOW WAS FALLING FROM THE ROCKIES INTO THE
CENTRAL PLAINS...WITH SOME FREEZING RAIN AND SLEET MIXED IN WITH
THE SNOW OVER THE CENTRAL PLAINS. HEAVY RAIN WAS FALLING FROM
MISSOURI SOUTHWARD INTO EASTERN TEXAS AND LOUISIANA.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 300 AM CST WED DEC
23 THROUGH 700 AM CST WED DEC 23...

...COLORADO...
PARADOX 2N                            6.0                     
GREELEY 2.6W                          5.5                     
BUCKEYE 4.7NNE                        4.1                     
ESTES PARK 2.2S                       4.0                     
FORT COLLINS                          3.3                     
COLORADO SPRINGS 5 ESE                2.0                     
MONUMENT6 E                           1.8                     

...KANSAS...
ELLIS 11NNE                           2.8                     
HAYS 5.4SSW                           2.4                     
CATHERINE                             2.0                     
HAYS                                  2.0                     

...WYOMING...
CHEYENNE                              3.0                     

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 300 AM CST WED DEC
23 THROUGH 700 AM CST WED DEC 23...

...ARKANSAS...
SHERWOOD 1.8NNW                       1.04                     
MONTICELLO AIRPORT                    0.88                     

...MISSOURI...
ST CHARLES                            0.94                     

...TEXAS...
BULLARD 3.7E                          1.32                     
LONGVIEW/GREGG CO. ARPT               1.09                     

...SELECTED STORM TOTAL FREEZING RAIN ICE AMOUNTS IN INCHES FROM
300 AM CST WED DEC 23 THROUGH 700 AM CST WED DEC 23...

...ILLINOIS...
CAMP GROVE                            0.10                     

...KANSAS...
OBERLIN                               0.25                     
BURR OAK                              0.24                     


THE SURFACE LOW WILL SLOWLY INTENSIFY TODAY AND MOVE INTO MISSOURI
CHRISTMAS EVE. THE LOW WILL THEN BEGIN RAPID INTENSIFICATION
THROUGH CHRISTMAS DAY AND MOVE INTO IOWA. HEAVY SNOW WILL EXPAND
THROUGH THE CENTRAL AND UPPER MIDWEST STATES WITH A TREMENDOUS
AMOUNT OF BLOWING AND DRIFTING SNOW AND POSSIBLY LIFE THREATENING
BLIZZARD CONDITIONS. A LARGE AREA OF 6 TO 12 INCH SNOWS ARE LIKELY
WITH 1 TO 2 FEET POSSIBLE OVER NORTHERN IOWA INTO SOUTHERN
MINNESOTA. THE ASSOCIATED COLD FRONT WILL PUSH ACROSS THE LOWER
OHIO VALLEY INTO GULF COAST STATES WITH A THREAT FOR HEAVY
RAINFALL AND SEVERE THUNDERSTORMS THROUGH CHRISTMAS DAY. RAINFALL
OF 1 TO 4 INCHES ARE LIKELY THAT WILL CAUSE SOME FLOODING.

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

ECKERT/KONG




Last Updated: 955 AM EST WED DEC 23 2009