Area Forecast Discussion
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000 FXUS61 KPBZ 261245 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 845 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/...
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MINIMAL CHANGES MADE TO CLOUD COVER AND HOURLY TEMPERATURE TRENDS WITH 845AM UPDATE. 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.
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&& .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 /13Z SUNDAY THROUGH THURSDAY/...
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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.../MONDAY THROUGH THURSDAY/... VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT BRINGS RESTRICTIONS TUESDAY NIGHT.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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