FXUS01 KWBC 262007
PMDSPD
 
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
307 PM EST THU NOV 26 2009
 
VALID 00Z FRI NOV 27 2009 - 12Z SAT NOV 28 2009
 
A STORM OVER THE GREAT LAKES WILL INCH EASTWARD AND GET ABSORBED
BY A DEEPENING LOW OFF THE MID-ATLANTIC/NORTHEAST COAST.  THE
DEEPENING SYSTEM WILL MOVE NORTHWARD TO THE MAINE COAST BY FRIDAY
EVENING BEFORE MOVING INTO SOUTHEASTERN CANADA BY SATURDAY.  THE
WEAKENING STORM WILL PRODUCE SCATTERED LIGHT RAIN AND SNOW SHOWERS
OVER PARTS OF THE GREAT LAKES/OHIO VALLEY INTO THE CENTRAL
APPALACHIANS THROUGH FRIDAY MORNING.  THE DEEPENING LOW WILL
PRODUCE SCATTERED LIGHT RAIN ALONG THE MID-ATLANTIC COAST AND
SOUTHERN NEW ENGLAND COAST BY EVENING ON THANKSGIVING.  THE STORM
WILL PRODUCE LIGHT TO MODERATE RAIN OVER PORTIONS OF THE NORTHEAST
FRIDAY INTO SATURDAY MORNING.  SNOW WILL ALSO DEVELOP OVER PARTS
OF THE HIGHER ELEVATIONS OF THE INTERIOR NORTHEAST AND LOWER GREAT
LAKES.   
A STORM COMING INTO THE WEST COAST WILL HAVE ITS UPPER LEVEL
ENERGY SPLIT AROUND AN UPPER LEVEL RIDGE OVER THE PLAINS. MOST OF
THE ENERGY WILL MOVE SOUTHEASTWARD OVER SOUTHERN CALIFORNIA WHILE
THE REST OF THE ENERGY WILL MOVE EASTWARD ALONG THE NORTHERN TIER
STATES.  THE SYSTEM WILL PRODUCE RAIN AND HIGHEST ELEVATION SNOW
OVER PARTS OF THE NORTHWEST THANKSGIVING INTO FRIDAY MORNING. 
WHEN THE FRONT PASSES THE NORTHWEST ... THE SNOW LEVEL WILL LOWER
AND THE STORM WILL PRODUCE SCATTERED RAIN AND HIGHER ELEVATION
SNOW FROM SOUTHERN CALIFORNIA TO PARTS OF THE NORTHERN ROCKIES BY
SATURDAY.  IN ADDITION ... ANOTHER PACIFIC STORM WILL PRODUCE
SCATTERED LIGHT RAIN AND HIGHER ELEVATION SNOW OVER PARTS OF THE
PACIFIC NORTHWEST ON SATURDAY.  FURTHERMORE ... THE RIDGE OVER THE
PLAINS WILL PRODUCE ABOVE TO MUCH ABOVE AVERAGE TEMPERATURES OVER
THE PLAINS THROUGH FRIDAY NIGHT.    
ZIEGENFELDER
GRAPHIC AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
$$