Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KPBZ 261918 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 218 PM EST WED NOV 26 2014 .SYNOPSIS... SNOW WILL END WEST TO EAST THIS AFTERNOON AS THE COASTAL LOW MOVES OFF TO THE NORTHEAST. A SECOND...WEAKER SYSTEM WILL USHER IN COLDER TEMPERATURES AND LINGERING SNOW SHOWER CHANCES THROUGH THE END OF THE WEEK. && .NEAR TERM /THROUGH TONIGHT/... MOISTURE ASSOCIATED WITH THE COASTAL LOW WILL QUICKLY SHIFT EASTWARD THROUGH THE REST OF THE AFTERNOON...WITH SNOW EXPECTED TO END AT PITTSBURGH WITHIN THE HOUR. AN ADDITIONAL INCH OR SO WILL BE POSSIBLE FURTHER EAST BEFORE SNOW FINALLY ENDS BY SUNSET. WILL LEAVE ALL ADVISORIES AND WARNINGS AS IS AT THIS TIME. THE LARGE SCALE TROUGH WILL PIVOT OVER THE REGION TONIGHT. WHILE COLD ADVECTION/NW FLOW WILL BE ONGOING...THERE WILL BE LITTLE MOISTURE IN THE LOW LEVELS TO SUPPORT SNOW SHOWERS. WILL MAINTAIN A DRY FORECAST TONIGHT WITH LOW TEMPERATURES FORECAST NEAR MET VALUES. && .SHORT TERM /THURSDAY THROUGH SATURDAY/... A SHORTWAVE DIGGING THROUGH THE UPPER TROUGH WILL BRING A REINFORCING SHOT OF COLD AIR ON THURSDAY. BY AFTERNOON...A MORE FAVORABLE NORTHWEST FETCH LOOKS TO BEGIN TO SETUP...WITH LAKE ERIE SUPPORT. WITH THIS IN MIND...BROUGHT POP CHANCES UP THROUGH AFTERNOON AND INTO THE EVENING HOURS. WITH INVERSION HEIGHTS LIFTING INTO THE DENDRITIC GROWTH ZONE...THE BEST CHANCE FOR SOME ACCUMULATION WILL BE THURSDAY NIGHT...ESPECIALLY NORTH OF I-80 AND IN THE RIDGES. SURFACE RIDGE WILL BUILD IN ON FRIDAY HELPING TO DRY OUT THE ENTIRE ATMOSPHERE DURING THE MORNING HOURS. COULD SEE SOME LINGERING FLURRIES ACROSS THE NORTH AND RIDGES FRIDAY MORNING...BUT THESE TOO WILL END AS SUBSIDENCE AND THE DRIER AIR TAKES OVER. WHILE TEMPERATURES WILL REMAIN BELOW SEASONABLE VALUES ON FRIDAY...WARM ADVECTION SHOULD BRING TEMPERATURES CLOSER TO NORMAL BY SATURDAY WITH HIGHS IN THE MID 40`S. && .LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/... MODELS COMING INTO GOOD AGREEMENT WITH ANOTHER WARM UP FOR THE WEEKEND. MODELS ARE STILL TRYING TO FIGURE OUT HOW MUCH PRECIP WILL DEVELOP SATURDAY NIGHT AND SUNDAY WITH PASSING WAVES IN THE ZONAL FLOW ALOFT. EXPECT MOST OF SATURDAY NIGHT TO BE DRY WITH A SHOWER POSSIBLE BY SUNDAY MORNING. LOOKING LIKE A BETTER CHANCE FOR SHOWERS SUNDAY...PARTICULARLY IN THE AFTERNOON...AHEAD OF AN APPROACHING COLD FRONT. AREA WILL DRY OUT MONDAY WITH ANOTHER COOL DOWN ON TUESDAY. && .AVIATION /19Z WEDNESDAY THROUGH MONDAY/... IFR TO CONTINUE AT MOST PA AND WV AIRPORTS THROUGH THIS AFTERNOON. OHIO AIRPORTS MOSTLY VFR. SNOW SHOULD BE ENDING RAPIDLY AND VISIBILITIES SHOULD IMPROVE TO MVFR/VFR IN PA AND WV. CEILINGS FORECAST TO REMAIN IFR INTO THE EARLY EVENING HOURS THEN IMPROVE TO MVFR AS SLIGHTLY DRIER AIR MOVE IN AS SYSTEM PASSES AND WINDS SHIFT MORE NORTHWEST OUTLOOK.../WEDNESDAY NIGHT THROUGH SUNDAY/... NON VFR DEVELOPING THURSDAY IN -SHSN...LINGERING ACROSS NW PA INTO FRIDAY. NON-VFR SUNDAY IN -SHRA WITH THE NEXT FRONT. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...WINTER STORM WARNING UNTIL 6 PM EST THIS EVENING FOR MDZ001. OH...NONE. PA...WINTER STORM WARNING UNTIL 6 PM EST THIS EVENING FOR PAZ074- 076. WINTER WEATHER ADVISORY UNTIL 6 PM EST THIS EVENING FOR PAZ023- 073-075. WV...WINTER STORM WARNING UNTIL 6 PM EST THIS EVENING FOR WVZ023- 041. WINTER WEATHER ADVISORY UNTIL 6 PM EST THIS EVENING FOR WVZ021- 022. && $$

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.