Prognostic Meteorological Discussion
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4
000
FXUS01 KWBC 302100
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
459 PM EDT WED JUL 30 2014

VALID 00Z THU JUL 31 2014 - 00Z SAT AUG 02 2014

...HEAVY RAINS ARE EXPECTED TO MOVE EASTWARD INTO THE
MID-MISSISSIPPI VALLEY DURING THE NEXT COUPLE OF DAYS...

...PLEASANTLY COOL WEATHER IS EXPECTED TO CONTINUE ACROSS THE
EASTERN HALF OF THE NATION FOR THE NEXT COUPLE OF DAYS...

AN UPPER-LEVEL IMPULSE THAT MOVED OFF THE CENTRAL ROCKIES HAS BEEN
A TRIGGERING MECHANISM FOR HEAVY RAINS AND THUNDERSTORMS ACROSS
OKLAHOMA TODAY.  THIS AREA OF HEAVY RAIN IS EXPECTED TO MOVE
STEADILY TO THE EAST-SOUTHEAST AHEAD OF A SURFACE FRONTAL LOW
PRESSURE SYSTEM.  THE RAIN CAN BE HEAVY ENOUGH TO CAUSE AREAS OF
FLASH FLOODING TONIGHT INTO TOMORROW IN THE SOUTH-CENTRAL PLAINS.
BY FRIDAY MORNING, AS THE SYSTEM REACHES THE LOWER MISSISSIPPI
VALLEY, THE INTENSITY OF THE RAIN IS EXPECTED TO DIMINISH SOMEWHAT.

AN ANOMALOUS DEEP TROUGH CONTINUES TO DOMINATE THE WEATHER OVER
THE EASTERN HALF OF THE NATION, PROVIDING UNUSUALLY COOL
TEMPERATURES OVER A LARGE PORTION OF THE COUNTRY EAST OF THE
CONTINENTAL DIVIDE FOR THE MIDDLE OF SUMMER.  THE GREAT LAKES WILL
AGAIN SEE LOW TEMPERATURES AS COLD AS THE MID-40`S IN THE MIDDLE
OF SUMMER ALONG WITH SCATTERED SHOWERS AND THUNDERSTORMS, SOME OF
WHICH CAN BE LAKE-ENHANCED!  TYPICAL SUMMER HEAT AND HUMIDITY WILL
BE CONFINED TO THE TEXAS GULF COAST AND SOUTHERN AND EASTERN
FLORIDA.

MEANWHILE, HEAT IS EXPECTED TO PERSIST FROM THE INTERMOUNTAIN WEST
EASTWARD INTO MONTANA UNDER AN UPPER-LEVEL RIDGE.  FARTHER
SOUTH...MONSOONAL MOISTURE WILL CONTINUE TO FUEL SCATTERED SHOWERS
AND THUNDERSTORMS OVER THE GREAT BASIN AND INTO CENTRAL AND
SOUTHERN ROCKIES.  TYPICAL SUMMER HEAT WILL CONTINUE ACROSS THE
DESERT SOUTHWEST.


KONG


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





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.