Area Forecast Discussion
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000 FXUS61 KPBZ 242313 AAA AFDPBZ AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE PITTSBURGH PA 613 PM EST TUE FEB 24 2015 .SYNOPSIS... A COLD FRONT WILL MOVE THROUGH TONIGHT WITH LIGHT SNOW SHOWERS. BELOW AVERAGE TEMPERATURES WILL REMAIN THROUGH THE WEEK. && .NEAR TERM /THROUGH WEDNESDAY/... CLOUDS HAVE OVERSPREAD MUCH OF THE REGION AHEAD OF ADVANCING COLD FRONT. TEMPERATURES WILL NOT DROP AS NEARLY AS MUCH OVERNIGHT WITH CLOUDS AND SNOW SHOWERS. UP TO AN INCH POSSIBLE LATER TONIGHT INTO EARLY WEDNESDAY ACROSS THE I-80 CORRIDOR WHERE DEEPER MOISTURE WILL BE PRESENT. LEFTOVER SNOW SHOWERS WILL WIND DOWN DURING THE DAY WEDNESDAY WITH TEMPERATURES AROUND 10 TO 15 DEGREES BELOW AVERAGE. && .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/... COMBINATION OF SYSTEMS FOR WEDNESDAY NIGHT AND THURSDAY WITH A NORTHERN STREAM SHORTWAVE AHEAD OF ANOTHER COLD CANADIAN SURFACE HIGH MOVES SOUTH...WHILE A SUPPRESSED SOUTHERN STREAM WAVE SHEARS OUT ACROSS THE MID ATLANTIC STATES. DEEP MOISTURE WILL BE LACKING BUT DO EXPECT SNOW SHOWERS AT TIMES BEFORE DAYBREAK THURSDAY MORNING CONTINUING THURSDAY. COLD FRONT WILL EXIT AS SURFACE HIGH BUILDS SOUTHEAST THURSDAY NIGHT INTO FRIDAY. CONTINUED QUITE COLD THROUGH THE PERIOD WITH LOWS NEAR OR BELOW ZERO AGAIN FOR THURSDAY NIGHT. TEMPERATURES WILL HOLD MAINLY IN THE TEENS FRIDAY. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... ONLY SIGNIFICANT CHANGES WERE TO TEMPERATURES EARLY IN THE EXTENDED PERIOD. ARCTIC HIGH WITH CLEARING SKIES SHOULD ALLOW FOR SIGNIFICANT RADIATIONAL COOLING FRIDAY NIGHT AND TOOK TEMPERATURES DOWN TOWARD NEWEST WPC GUIDANCE FRIDAY NIGHT. LOWERED MAX TEMPS FOR SATURDAY AS WELL. PATTERN MUDDIES THEREAFTER AS MAIN BAROCLINIC ZONE SETS UP SHOP IN OR JUST SOUTH OF OUR REGION FROM SUNDAY INTO EARLY NEXT WEEK. MOIST SW FLOW AND A FEW SHORTWAVES WILL PROVIDE OPPORTUNITIES FOR PRECIPITATION...THE BEST OF WHICH APPEARS TO BE SUNDAY NIGHT INTO MONDAY AT PRESENT TIME. PRECIPITATION TYPE REMAINS UNCERTAIN THROUGH THIS PERIOD. ENSEMBLES LIKELY WOULD PROVIDE THE PATH OF LEAST REGRET AT THIS POINT. NEVERTHELESS...THE RISING H500 HEIGHTS POINT TO TEMPERATURES AT LEAST GETTING WITHIN THE REALM OF SEASONABLE VALUES BY THE END OF THE EXTENDED PERIOD. CL && .AVIATION /23Z TUESDAY THROUGH SUNDAY/...
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A COLD FRONT WILL CROSS THE REGION TONIGHT WITH RELATIVELY LOW MOISTURE AND WEAK UPPER LEVEL SUPPORT. MVFR CIGS ARE EXPECTED AT ALL TERMINALS...WITH IFR VISIBILITY EXPECTED FOR A FEW HOURS AT FKL/DUJ IN LIGHT SNOW. SNOW SHOULD GENERALLY MOVE OUT OF THE REGION BY SUNRISE...ALTHOUGH MVFR CIGS WILL LINGER THROUGH THE DAY. OUTLOOK.../WEDNESDAY THROUGH SUNDAY/... RESTRICTIONS ARE POSSIBLE AREA WIDE WITH A LATE THURSDAY DISTURBANCE SOUTH OF PIT. RESTRICTIONS WILL ALSO BE POSSIBLE SUNDAY WITH AN APPROACHING COLD FRONT.
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&& .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$

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