Prognostic Meteorological Discussion
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FXUS01 KWBC 110710
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
309 AM EDT FRI JUL 11 2014

VALID 12Z FRI JUL 11 2014 - 12Z SUN JUL 13 2014

...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO FIRE FROM THE
CENTRAL PLAINS ACROSS THE MID MISSISSIPPI VALLEY AND INTO THE
MIDWEST...

...SCATTERED SHOWERS AND THUNDERSHOWERS TO PERSIST FROM THE
SOUTHEAST TO THE MID ATLANTIC REGION...

...HOT WEATHER TO PERSIST ACROSS THE SOUTHERN PLAINS STATES WHILE
A VERY COOL MID SUMMER COLD FRONT BEGINS TO AFFECT THE NORTHERN
PLAINS AND UPPER MISSISSIPPI VALLEY BY SUNDAY...

A ZONE OF POSSIBLE HEAVY THUNDERSTORMS IS EXPECTED TO DEVELOP
ACROSS THE CENTRAL PLAINS INTO THE MID MISSISSIPPI VALLEY INTO THE
MIDWEST OVER THE NEXT COUPLE OF DAYS.  THIS ZONE IS EXPECTED TO
DEVELOP BETWEEN COOLER AIR MAKING ITS WAY SOUTH ALONG THE NORTHERN
TIER OF THE US AND HOT WEATHER ACROSS THE SOUTHERN PLAINS WITH
MONSOONAL MOISTURE ACROSS THE SOUTHWEST AND ROCKY MOUNTAIN STATES
FUELING THE DEVELOPMENT OF THESE STORMS. FLASH FLOODING AND THE
POSSIBILITY OF SEVERE WEATHER WILL POSSIBLY ACCOMPANY THESE
THUNDERSTORMS.

A SLOWLY WEAKENING NEARLY STATIONARY FRONT WILL BE THE SITE OF
NUMEROUS SHOWERS AND THUNDERSHOWERS ACROSS THE MIDDLE ATLANTIC
STATES THAT SHOULD GRADUALLY DIMINISH OVER THE WEEKEND.
HOWEVER...WARM AND HUMID CONDITIONS WILL PROMOTE SCATTERED SHOWERS
AND THUNDERSHOWERS ACROSS MUCH OF THE SOUTHEAST WITH AFTERNOON
HEATING PROMOTING MORE WIDESPREAD COVERAGE OF STORMS.

SOME OF THE HOTTEST WEATHER AROUND THE COUNTRY WILL BE FOUND
ACROSS THE SOUTHERN PLAINS WHERE CONDITIONS WILL BE DRY BUT
TEMPERATURES WILL SOAR INTO THE 90S TO NEAR 100 DEGREES. TO THE
WEST OF THIS REGION...MONSOONAL MOISTURE WILL FUNNEL NORTHWARD
ACROSS THE DESERT SOUTHWEST AND ACROSS THE GREAT BASIN AND CENTRAL
ROCKIES WHERE LOCALLY HEAVY THUNDERSTORMS ARE CAPABLE OF PRODUCING
LOCALIZED FLASH FLOODING.

A WELL ADVERTISED AND UNUSUALLY LARGE OUTBREAK OF CHILLY AIR FROM
NORTHERN CANADA IS EXPECTED TO PLUNGE SOUTHWARD ACROSS CENTRAL
CANADA EARLY IN THE WEEKEND AND THEN CONTINUE SOUTHWARD INTO THE
NORTHERN PLAINS AND THE MIDWEST ON SUNDAY...WHERE TEMPERATURES ARE
EXPECTED TO BE WELL BELOW NORMAL AND SEEM MORE TYPICAL OF AUTUMN
THAN OF SUMMER.

KOCIN


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