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Area Forecast Discussion
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000
FXUS61 KPBZ 260746
AFDPBZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PITTSBURGH PA
346 AM EDT SUN OCT 26 2014

.SYNOPSIS...
BREEZY AND SEASONABLY COOL TODAY...THEN TEMPERATURES WILL WARM
WELL ABOVE NORMAL MONDAY AND TUESDAY. A COLD FRONT TUESDAY NIGHT
WILL BRING SHOWERS AND A RETURN TO COLDER TEMPERATURES.

&&

.NEAR TERM /THROUGH TONIGHT/...
TIGHT PRESSURE GRADIENT BETWEEN SURFACE HIGH OVER THE CENTRAL
PLAINS AND LOW PRESSURE OVER EASTERN CANADA WILL KEEP BREEZY
NORTHWEST WINDS ACROSS THE REGION TODAY. VERY DRY AIR MASS WILL
BRING SUNSHINE WITH HIGHS NEAR THE SEASONAL AVERAGES. TONIGHT
SURFACE HIGH WILL DRIFT OVER THE REGION WITH DIMINISHING WINDS.
AND CONTINUED CLEAR SKIES. 

&&

.SHORT TERM /MONDAY THROUGH TUESDAY/...
SURFACE HIGH WILL SHIFT EAST MONDAY WILL BRING SOUTHERLY WINDS AND
MUCH WARMER TEMPERATURES MONDAY AFTERNOON AND TUESDAY. BY LATE DAY
TUESDAY COLD FRONT AND ASSOCIATED UPPER LEVEL TROUGH WILL APPROACH
WITH INCREASING MOISTURE IN THE COLUMN. CONTINUED TO BRING A
CHANCE FOR LATE AFTERNOON SHOWERS MAINLY ACROSS EASTERN OHIO. 

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
COLD FRONT WILL RACE ACROSS REGION TUESDAY NIGHT WITH LIKELY POPS.
HAVE INCLUDED SCATTERED THUNDERSTORMS JUST AHEAD OF THE BOUNDARY
ACROSS EASTERN OHIO INTO FAR NORTHWEST PA WITH ENOUGH LATE DAY
INSTABILITY TO FIRE A FEW STORMS. OTHERWISE FRONT WILL BE WELL
EAST OF THE RIDGES BY DAYBREAK WITH SHOWERS ENDING ACROSS THE
SOUTHERN COUNTIES BY MID MORNING WEDNESDAY. QUIET WEATHER FOR THE
REMAINDER OF WEDNESDAY AND THURSDAY WITH WEAK SURFACE RIDGE
STRETCHED ACROSS THE UPPER OHIO VALLEY. BY LATE THURSDAY NIGHT
INTO FRIDAY DEEPENING UPPER LEVEL SYSTEM AND SURFACE LOW PRESSURE
WILL BRING SHOWERS BACK TO THE REGION WITH A STRONGER COLD FRONT
PASSING FRIDAY. BEHIND THE FRONT STRONG COLD ADVECTION IN
NORTHWEST FLOW WILL DROP 850MB TEMPERATURES FROM -8 TO -10C
ACROSS THE REGION SATURDAY WITH RAN SHOWERS CHANGING TO SNOW
SHOWERS LATER FRIDAY NIGHT INTO SATURDAY MORNING. COLD
TEMPERATURES WILL REMAIN THROUGH THE WEEKEND. 

&&

.AVIATION /07Z SUNDAY THROUGH THURSDAY/...
VFR CONDITIONS FOR THE FORECAST PERIOD. GUSTY SURFACE WINDS WILL
WEAKEN DURING THE EARLY PART OF THE FORECAST...THEN RAMP UP AGAIN
BY LATE MORNING. EXPECT GUSTS OF 20 TO 25 KTS TO RETURN. FORECAST
SOUNDINGS ARE SHOWING CU DEVELOPING WITH DAYTIME HEATING...MAINLY
ACROSS THE NORTH WHERE THE COLDER AIR ALOFT WILL BE SLOWER TO
EXIT. FOR FORECAST WILL MENTION CU AT FKL AND DUJ.


OUTLOOK.../SUNDAY NIGHT THROUGH THURSDAY/...
VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT BRINGS RESTRICTIONS
TUESDAY NIGHT. 

&&

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

&&

$$









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