Prognostic Meteorological Discussion
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FXUS01 KWBC 011959
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
359 PM EDT SAT AUG 01 2015

VALID 00Z SUN AUG 02 2015 - 00Z TUE AUG 04 2015

...MORE HEAVY RAINS POSSIBLE FOR NORTHERN FLORIDA...

...SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE UPPER MIDWEST...

...MORE SHOWERS AND THUNDERSTORMS FOR THE SOUTHWESTERN U.S....

...WET WEATHER AND COOLER TEMPERATURES FOR THE NORTHWEST EARLY
NEXT WEEK...

WITH A STALLED FRONTAL BOUNDARY REMAINING CENTERED FROM THE
EASTERN CAROLINAS BACK INTO THE NORTHERN GULF OF MEXICO, SHOWERS
AND THUNDERSTORMS ARE FORECAST TO PERSIST ACROSS THE REGION.  SOME
OF THESE STORMS MAY PRODUCE HEAVY TO EXCESSIVE RAINFALL AMOUNTS,
PARTICULARLY ALONG PORTIONS OF THE NORTHERN GULF COAST OF FLORIDA,
WHERE DEEP TROPICAL MOISTURE POOLING ALONG THE FRONT IS EXPECTED
TO INTERACT WITH A STRING OF WEAK DISTURBANCES MOVING ALONG THE
BOUNDARY.  ELSEWHERE ALONG THE EAST COAST, EXPECT DRY CONDITIONS
TO PREVAIL ACROSS MUCH OF THE REGION OVER THE NEXT TWO DAYS.

ACROSS THE CENTRAL U.S., SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
DEVELOP AHEAD OF AN AREA OF LOW PRESSURE MOVING FROM THE NORTHERN
GREAT PLAINS TO THE GREAT LAKES SUNDAY INTO EARLY MONDAY.  SOME OF
THESE STORMS MAY BE STRONG TO SEVERE AND PRODUCE LOCALLY HEAVY
RAINS.  BY MONDAY, A WELL-DEFINED COLD FRONT DROPPING SOUTH BEHIND
THE LOW IS EXPECTED TO DROP DAYTIME TEMPERATURES TO 5-10 DEGREES
BELOW THEIR NORMAL HIGHS ACROSS THE UPPER MISSISSIPPI VALLEY INTO
THE UPPER GREAT LAKES REGION.

FURTHER TO THE SOUTH AND WEST, SHOWERS AND THUNDERSTORMS WILL ONCE
AGAIN EXPAND DURING THE AFTERNOON EVENING HOURS ACROSS PORTIONS OF
CALIFORNIA, THE GREAT BASIN, SOUTHWEST, THE CENTRAL AND SOUTHERN
ROCKIES AND ADJACENT HIGH PLAINS.  SOME OF THESE STORMS MAY
PRODUCE LOCALLY HEAVY AMOUNTS, RESULTING IN EXCESSIVE RUNOFF AND
FLASH-FLOODING.

ACROSS THE NORTHWESTERN U.S., THE DRY PERIOD IS FORECAST TO
CONTINUE THROUGH THE REMAINDER OF THE WEEKEND.  BUT THEN BY
MONDAY, AN APPROACHING COLD FRONT MAY PROVIDE SOME SHOWERS WHILE
PUTTING AN END TO THE STRING OF WELL-ABOVE NORMAL TEMPERATURES.

PEREIRA

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