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-- Discussion containing changed information from previous version are highlighted. --
000
FXUS61 KPBZ 191851
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
251 PM EDT WED JUN 19 2013

.SYNOPSIS...
HIGH PRESSURE WILL KEEP CONDITIONS DRY AND TEMPERATURES NEAR
NORMAL FOR THE REMAINDER OF THE WORK WEEK.

&&

.NEAR TERM /THROUGH THURSDAY/...
DRIER AIR CONTINUES TO FILTER INTO THE CWA THIS AFTERNOON AS
EVIDENCED BY DEWPOINTS FALLING INTO THE MID 40S ACROSS THE
NORTHERN HALF TO TWO THIRDS OF PENNSYLVANIA AND NORTHERN HALF OF
OHIO. THIS DRIER AIR WILL SLOWLY EDGE SOUTHWARD OVER THE NEXT 24
HOURS...WITH SOME EVIDENCE IN MODEL SOLUTIONS THAT LOW LEVEL
MOISTURE WILL BE SLOWER TO EVACUATE THE SOUTHEASTERN ZONES. AS
SUCH...WITH THE LOSS OF DIURNAL INSTABILITY AND DRY
ADVECTION...TONIGHT SHOULD GO MOSTLY CLEAR ACROSS THE ENTIRE AREA.
ON THURSDAY...THE GREATER LOW LEVEL MOISTURE FIELD AND DIURNAL
INSTABILITY IS LIKELY TO ALLOW FOR CUMULUS DEVELOPMENT YET AGAIN
ACROSS THE SOUTHEASTERN AREAS AND RIDGES.

TEMPERATURES TONIGHT LOOKS RANGE BOUND BY THE DEWPOINTS. AS
SUCH...EXPECT READINGS IN THE UPPER 40S TO MID 50S ACROSS THE CWA.
ON THURSDAY...WITH 850 TEMPERATURES JUMPING ROUGHLY 2-3C OVER THE
VALUES TODAY...HIGHS SHOULD JUMP 4-6F FROM TODAY. AS SUCH...UPPER
70S TO LOWER 80S SEEM REASONABLE MOST EVERYWHERE WITH CONTINUED
RATHER DRY DEWPOINTS. ALL IN ALL...THE KIND OF WEATHER EVERYONE
LIKES TO SEE IN THE SUMMER...EXCEPT FOR MAYBE A POLAR BEAR AT A
ZOO.  THEY MIGHT BE A TAD WARM. FRIES

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
-- Changed Discussion --
PRETTY QUIET WEATHER THROUGH THIS STRETCH. HIGH PRESSURE WILL REMAIN
OFF SHORE...BUT THINK THAT DIURNAL CUMULUS CAN BE EXPECTED ACROSS
THE RIDGES BOTH FRIDAY AND SATURDAY. A WEAK FRONT WILL TRY TO SLIP
SOUTH ACROSS THE EASTERN GREAT LAKES ON SATURDAY...BUT THINK THAT
MOST OF THE ACTIVITY WILL REMAIN NORTH OF THE AREA. HAVE BACKED
OFF FROM CHANCE POPS TO SLIGHT CHANCE POPS ON SATURDAY. WITH UPPER
RIDGE BECOMING A LITTLE STRONGER ACROSS THE EASTERN UNITED
STATES...TEMPERATURES SHOULD GO UP A FEW DEGREES FROM THURSDAY
INTO THE WEEKEND.
-- End Changed Discussion --

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
WARM AND HUMID CONDITIONS ARE FORECAST INTO EARLY NEXT WEEK AS
UPPER LEVEL RIDGE IS STILL PROJECTED TO BUILD OVER THE SRN CONUS
AS SHORTWAVES MOVE EAST IN FAIRLY ZONAL FLOW ACROSS THE GREAT
LAKES. WITH HARD TO TIME SHORTWAVES A FORECAST OF MAINLY DIURNAL
SHOWERS AND STORMS STILL WILL BE THE BEST COURSE...UNTIL BETTER
SHORTWAVE TIMING CAN BE DETERMINED. TEMPERATURES WILL AVERAGE
ABOUT 5 TO 10 DEGREES ABOVE NORMAL.

&&

.AVIATION /19Z WEDNESDAY THROUGH MONDAY/...
-- Changed Discussion --
CUMULUS CONTINUES ACROSS THE AREAS SOUTH OF KHLG AND NEAR
KMGW...HOWEVER IT SHOULD DISSIPATE AFTER SUNSET. CLEAR SKIES AND
LIGHT WINDS SEEM LIKELY FOR MOST OF THE REST OF THE FORECAST
PERIOD. FRIES

OUTLOOK.../THURSDAY THROUGH MONDAY/...
GENERAL VFR CONDITIONS ARE EXPECTED UNDER HIGH PRESSURE THROUGH
SATURDAY. SCATTERED THUNDERSTORMS MAY BRING RESTRICTIONS SUNDAY.
-- End Changed Discussion --

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
OH...NONE.
PA...NONE.
WV...NONE.

&&

$$