Prognostic Meteorological Discussion
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000
FXUS01 KWBC 100750
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
349 AM EDT THU JUL 10 2014

VALID 12Z THU JUL 10 2014 - 12Z SAT JUL 12 2014

***TROUGH IN THE EAST AND RIDGE IN THE WEST***

***SHOWERS AND THUNDERSTORMS EXPECTED FOR THE INTER-MOUNTAIN
WEST***

***COOLER AND DRIER WEATHER FROM THE UPPER MIDWEST TO THE
NORTHEAST***

THE UPPER-LEVEL PATTERN THROUGH THE END OF THE WEEK WILL FEATURE A
GENERAL TROUGH ACROSS THE EASTERN HALF OF THE U.S. WHILE A RIDGE
WILL REMAIN IN PLACE OVER THE WEST.  A FEW WEAK SHORTWAVES ALOFT
ARE EXPECTED TO PIVOT AROUND THE BASE OF THE BROAD UPPER LEVEL LOW
OVER SOUTHERN CANADA DURING THIS TIME.  AT THE SURFACE, A HIGH
PRESSURE RIDGE WILL BUILD ACROSS THE MIDWEST AND EASTWARD INTO THE
NORTHEAST BY THE END OF THE WEEK, AND A SECOND COLD FRONT IS
EXPECTED TO ENTER THE NORTHERN TIER STATES BY THE WEEKEND.

OUT WEST, THE MONSOONAL FLOW WILL CONTINUE TO PROVIDE MOISTURE FOR
SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE FOUR CORNERS
REGION, AS WELL AS THE DESERT SOUTHWEST THROUGH THE END OF THE
WEEK.  MORE CONCENTRATED AREAS OF RAINFALL ARE LIKELY NEAR
MOUNTAIN RANGES WHERE UPSLOPE FLOW WILL AID IN THUNDERSTORM
DEVELOPMENT.  ISOLATED THUNDERSTORMS MAY REACH AS FAR NORTH AS
IDAHO AND WYOMING.

FOR THE EASTERN U.S., A COLD FRONT WILL REACH MOST OF THE EAST
COAST BY THURSDAY NIGHT, WHILE THE WESTERN END OF THE FRONT WILL
LIKELY STALL OVER THE DEEP SOUTH FOR THE END OF THE WEEK.  HEAT
AND HUMIDITY WILL BE PRESENT AHEAD AND SOUTH OF THE FRONT, ALONG
WITH SHOWERS AND STORMS.  ANOTHER AREA OF SHOWERS AND STRONG
THUNDERSTORMS IS LIKELY FOR PARTS OF THE CENTRAL PLAINS.  A HIGH
QUALITY AIRMASS WILL BE ENJOYED BY RESIDENTS OF THE UPPER MIDWEST,
GREAT LAKES, AND OHIO VALLEY IN THE WAKE OF THE COLD FRONT.

HAMRICK


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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