Burghblizz Posted November 21, 2010 Share Posted November 21, 2010 Got a Steeler thread rolling in OT - make sure you guys pop over. Although I have to get away from the computer before I get banned because I am so pissed at the NFL right now. Link to comment Share on other sites More sharing options...
PittWeatherWatch Posted November 24, 2010 Share Posted November 24, 2010 GFS has been showing pretty consistently snow after the heavy rain on Friday Link to comment Share on other sites More sharing options...
PittWeatherWatch Posted November 24, 2010 Share Posted November 24, 2010 yay for finally being able to target just laurel highlands with weather alerts this winter URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 314 PM EST WED NOV 24 2010 MDZ001-PAZ009-016-023-074-076-WVZ023-041-250415- /O.NEW.KPBZ.WW.Y.0018.101125T0400Z-101125T1500Z/ GARRETT-FOREST-JEFFERSON PA-INDIANA-WESTMORELAND RIDGES- FAYETTE RIDGES-PRESTON-TUCKER- INCLUDING THE CITIES OF...OAKLAND MD...GRANTSVILLE...TIONESTA... PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY...INDIANA... LIGONIER...DONEGAL...NEW FLORENCE...ACME...CHAMPION... NORMALVILLE...FARMINGTON...OHIOPYLE...MARKLEYSBURG...KINGWOOD... TERRA ALTA...PARSONS...DAVIS...THOMAS 314 PM EST WED NOV 24 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 10 AM EST THURSDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER WEATHER ADVISORY FOR A WINTRY MIX OF PRECIPITATION...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 10 AM EST THURSDAY. * PRECIPITATION TYPE: SLEET AND FREEZING RAIN WILL MIX IN WITH RAIN AT TIMES...ESPECIALLY ACROSS THE HIGHER ELEVATIONS. * ACCUMULATION: TRACE AMOUNTS TO LESS THAN A TENTH OF AN INCH OF ICE. * TIMING: BEGINNING AROUND MIDNIGHT TONIGHT ENDING BY MID MORNING THANKSGIVING DAY. * IMPACTS: LIGHT ACCUMULATIONS WILL LEAD TO ICY SPOTS ON UNTREATED ROADWAYS. * TEMPERATURES: TEMPERATURES WILL DROP TO THE LOWER 30S AFTER MIDNIGHT...WARMING BACK ABOVE FREEZING BY 10AM THANKSGIVING DAY. Link to comment Share on other sites More sharing options...
northpittweather Posted November 24, 2010 Share Posted November 24, 2010 With that precip shield moving in i would be concern for freezing rain/sleet/ and snow on the eastern side of the storm for most of the Pittsburgh Area because the temps haven't rose out of the 30s and temps are already starting to drop, temp at my place is 34 F Link to comment Share on other sites More sharing options...
airsci Posted November 24, 2010 Share Posted November 24, 2010 With that precip shield moving in i would be concern for freezing rain/sleet/ and snow on the eastern side of the storm for most of the Pittsburgh Area because the temps haven't rose out of the 30s and temps are already starting to drop, temp at my place is 34 F Locally should just be rain with some sleet possible at the onset for a short time. Taking this morning's sounding and modifying I definitely can see some sleet, but with the warm ground not expecting any road problems. Link to comment Share on other sites More sharing options...
northpittweather Posted November 24, 2010 Share Posted November 24, 2010 Locally should just be rain with some sleet possible at the onset for a short time. Taking this morning's sounding and modifying I definitely can see some sleet, but with the warm ground not expecting any road problems. thanks, can you give me your thoughts on Overnight Thursday for Black Friday, i think a brief period of heavy snow is possible Link to comment Share on other sites More sharing options...
airsci Posted November 24, 2010 Share Posted November 24, 2010 thanks, can you give me your thoughts on Overnight Thursday for Black Friday, i think a brief period of heavy snow is possible At this point I'm not very excited for much of anything. I really doubt any accumulation is likely, and I'm not completely sold that it will snow at all in the immediate Pittsburgh area. As of now it appears the cold frontal passage will be around daybreak on Friday morning, with moderate to heavy rain on-going from the overnight period. With the frontal passage, a lot of the lift and deep moisture will be quickly leaving the region, suffice to say it looks like the cold air aloft and especially at the surface may be just a bit too slow for a quick burst of snow locally. Link to comment Share on other sites More sharing options...
airsci Posted November 25, 2010 Share Posted November 25, 2010 38 degrees...light rain and sleet in Bridgeville...ping...ping...ping....ping. Link to comment Share on other sites More sharing options...
KPITblizz Posted November 25, 2010 Share Posted November 25, 2010 Low dewpoints.. temp probably around lower 30's. The Ping Ping Ping outside. Im not complaining, frozens frozen. Happy thanksgiving to you guys. Link to comment Share on other sites More sharing options...
meatwad Posted November 25, 2010 Share Posted November 25, 2010 Light Rain/Snow/sleet here in Monroeville. Temp is 38 Link to comment Share on other sites More sharing options...
north pgh Posted November 25, 2010 Share Posted November 25, 2010 Light rain and sleet here also for the last several hours. Link to comment Share on other sites More sharing options...
northpittweather Posted November 25, 2010 Share Posted November 25, 2010 On the borderline of a 2% Tornado and 5% Wind Area, looks like some strong storms are possible Link to comment Share on other sites More sharing options...
north pgh Posted November 25, 2010 Share Posted November 25, 2010 It's early but models are showing first snowfall next Wed-Thurs. Models have been consistent for 2 days now. We all know how quickly it can change but something to keep an eye on. Happy Thanksgiving all! Link to comment Share on other sites More sharing options...
RitualOfTheTrout Posted November 25, 2010 Author Share Posted November 25, 2010 It's early but models are showing first snowfall next Wed-Thurs. Models have been consistent for 2 days now. We all know how quickly it can change but something to keep an eye on. Happy Thanksgiving all! Sounds interesting. To be honest I haven't even really been looking at the models yet but I guess it is about time to start. Happy Thanksgiving everyone! Link to comment Share on other sites More sharing options...
psnnstater77 Posted November 26, 2010 Share Posted November 26, 2010 Didn't Pittsburgh get their first snowfall a few weeks ago? Wed-Thursday looks good for a few hours later Wednesday, Thursday looks cool, but clear. Link to comment Share on other sites More sharing options...
Paweatherguy1 Posted November 27, 2010 Share Posted November 27, 2010 Glad to see some people made it over...do you guys think rants comes back now? In any case, it was one of the most miserable thanksgivings I can remember, though the fairly extended period of sleet the night before was a nice little surprise....however, no wintry precip this morning was a downer though, as I was hoping for at least a few flakes to get me really into that christmas spirit! Longrange looks pretty boring on the GFS...12z has a clipper around day 9 or 10, but nothing else really...GFS has been showing a pretty big cold snap though mid month consistently, with the -10 line dipping pretty far south, and I am ready for that, even if there is no snow! Maybe we can get some LE snows! BTW, who watched the Pitt game today? What a freaking dissaster! Link to comment Share on other sites More sharing options...
north pgh Posted November 27, 2010 Share Posted November 27, 2010 Nice surprise dusting this morning. Link to comment Share on other sites More sharing options...
ejbauers Posted November 27, 2010 Share Posted November 27, 2010 Indeed this was a nice surprise. At 8am, I managed to measure barely measurable snow, a tenth of an inch, on a snow board near Allison Park. There was a brief period of snow pellets that helped me reach this first accumulation of the season! Link to comment Share on other sites More sharing options...
meatwad Posted November 27, 2010 Share Posted November 27, 2010 Nice dusting here a well. Still snowing as well. Link to comment Share on other sites More sharing options...
PittWeatherWatch Posted November 27, 2010 Share Posted November 27, 2010 first flakes i've seen this season. Link to comment Share on other sites More sharing options...
Digger Posted November 28, 2010 Share Posted November 28, 2010 .MONDAY NIGHT...MOSTLY CLOUDY. A CHANCE OF RAIN AFTER MIDNIGHT.NOT AS COOL WITH LOWS IN THE UPPER 30S. SOUTHEAST WINDS 15 TO 20 MPH. CHANCE OF RAIN 40 PERCENT. .TUESDAY...RAIN. HIGHS IN THE LOWER 50S. SOUTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF RAIN NEAR 100 PERCENT. .TUESDAY NIGHT...RAIN LIKELY. LOWS IN THE UPPER 30S. CHANCE OF RAIN 70 PERCENT. .WEDNESDAY...A CHANCE OF RAIN SHOWERS IN THE MORNING. CLOUDY WITH A CHANCE OF SNOW SHOWERS. COOLER. NEAR STEADY TEMPERATURE IN THE UPPER 30S. CHANCE OF PRECIPITATION 50 PERCENT. .WEDNESDAY NIGHT...MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN THE EVENING. LOWS IN THE MID 20S. CHANCE OF SNOW 40 PERCENT. Seems like a carbon copy of last week, Wednesday, Thanksgiving, and Friday. Of course, last week, all the moisture was past by the time it got cold enough to become snow... Link to comment Share on other sites More sharing options...
Paweatherguy1 Posted November 28, 2010 Share Posted November 28, 2010 I was very surprised by the nice dusting Saturday....a couple of icy pathces on the roads as well. Still not seeing too much in the long range, but we shall see what happens. Things can change a whole lot....at the very least, it still looks like it will be cold. Link to comment Share on other sites More sharing options...
weatherman5416 Posted November 29, 2010 Share Posted November 29, 2010 Seems like a carbon copy of last week, Wednesday, Thanksgiving, and Friday. Of course, last week, all the moisture was past by the time it got cold enough to become snow... Just wanted to give my thoughts on this upcoming storm... While most of the storm is obviously going to be rain, I think by the time Wednesday night comes around, the precipitation is going to be changing over to most, if not all snow. This is because the cold air will be coming in quicker than the precipitation can end. Looking at the 850 heights and temps at hour 66, the freezing line is in central PA leaving western PA cold enough for snow. (indicated by the blue shade) When you intersect the area cold enough for snow with the 700 mb RHU, you can see that it should be snowing in western PA during that period. If everything lines up right, then we could be in for a quick burst of moderate snow right after the frontal passage on Wednesday night perhaps leading to 2-4 inches of wet snow. Link to comment Share on other sites More sharing options...
meatwad Posted November 29, 2010 Share Posted November 29, 2010 AFD Update 000 FXUS61 KPBZ 290206 AFDPBZ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 906 PM EST SUN NOV 28 2010 .SYNOPSIS... -- Changed Discussion -- EAST COAST HIGH PRESSURE WILL BRING CLEAR COLD CONDITIONS TONIGHT FOLLOWED BY SUNSHINE AND A WARM UP TO SEASONABLE TEMPERATURES MONDAY. A STRONG LOW PRESSURE SYSTEM WILL THEN BRING HEAVY RAIN AND GUSTY WIND TO THE UPPER OHIO VALLEY TUESDAY AND TUESDAY NIGHT FOLLOWED BY COLDER TEMPERATURES AND A CHANGE TO SNOW SHOWERS WEDNESDAY. -- End Changed Discussion -- && .NEAR TERM /THROUGH MONDAY/... -- Changed Discussion -- HIGH PRESSURE WILL BRING DRY CONDITIONS AND ONLY A FEW CLOUDS FOR THE UPPER OHIO VALLEY THIS PERIOD. FORECASTED LOWS TONIGHT ABOUT FIVE DEGREES COLDER THAN NORMAL BUT WARMER TEMPERATURES MONDAY WITH HIGHS FIVE DEGREES ABOVE NORMAL. -- End Changed Discussion -- && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... -- Changed Discussion -- A COLD FRONT APPROACHING THE OHIO VALLEY LATE MONDAY NIGHT INTO TUESDAY WILL BRING RAIN LATE MONDAY NIGHT ACROSS OHIO AND THEN ACROSS THE REST OF THE UPPER OHIO VALLEY TUESDAY MORNING. SOME SREF MEMBERS CONTINUE TO SHOW THERE MAY BE A PREFRONTAL SURGE OF RAIN MOVING NORTHWARD THROUGH THE MOUNTAINS EARLY TUESDAY PRIOR TO THE MAIN EASTWARD MOVING FRONTAL BAND OF RAIN. SOUTHEAST WINDS CAN GUST TO 35 MPH DOWNSLOPE ON THE WESTERN SIDES OF THE HIGHER MOUNTAINS. THE FRONTAL BAND OF RAIN CAN PRODUCE WIDESPREAD 1 TO 2 INCH 24-HOUR RAIN AMOUNTS TUESDAY AND TUESDAY NIGHT PER BLEND OF RECENT HPC AND OHRFC QPF GUIDANCE. WITH 12-24 HOUR FLASH FLOOD GUIDANCE GENERALLY IN THE RANGE OF 2-3 INCHES...IT IS WITHIN THE REALM OF EXPECTATIONS THAT TUESDAYS RAIN COULD BE ENOUGH TO CAUSE FLOODING PROBLEMS ALONG SMALL STREAMS...AND SHARP RISES ON LARGER RIVERS. MENTION OF THIS POSSIBILITY HAS BEEN INCLUDED IN THE HAZARDOUS WEATHER OUTLOOK/HWO. THE POST SYSTEM COOL DOWN DAYTIME WEDNESDAY SHOULD INDUCE A CHANGE TO SNOW SHOWERS. THE FORECAST OF TEMPERATURE PARTICULARS WAS BASED ON BLEND OF RECENT GFS AND NAM MOS. -- End Changed Discussion -- && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... BLEND OF NAEFS AND ECMWF ENSEMBLE MODEL OUTPUT SHOW THERE STILL BE POST SYSTEM LIGHT SNOW SHOWERS ACROSS THE UPPER OHIO VALLEY WEDNESDAY NIGHT. CONSENSUS OF NAEFS AND ECMWF ENSEMBLE MODEL OUTPUT THEN SHOWS THE JETSTREAM ENERGY INCREASING IN THE NORTHERN STREAM ACROSS NORTH AMERICA LATE THIS WEEK...WHICH WILL INDUCE TEMPERATURES TO BE ABOUT 5 DEGREES COLDER THAN NORMAL ACROSS THE UPPER OHIO VALLEY THURSDAY INTO SUNDAY...AS INDICATED BY HPC GUIDANCE. PASSING CANADIAN HIGH PRESSURE WILL PROVIDE DRY CONDITIONS THURSDAY AND FRIDAY. AN EMBEDDED CLIPPER TYPE LOW PRESSURE SYSTEM COMING SOUTHEAST FROM THE CANADIAN ROCKIES MAY CAUSE A PERIOD OF SNOW SHOWERS ACROSS THE UPPER OHIO VALLEY SATURDAY INTO SUNDAY. && .AVIATION /02Z MONDAY THROUGH FRIDAY/... VFR CONDITIONS WILL CONTINUE THROUGH TONIGHT AND MONDAY AS HIGH PRESSURE REMAINS THE DOMINANT SYSTEM OVER THE EASTERN U.S. WINDS WILL REMAIN LIGHT AND SKIES CLEAR OVERNIGHT. ON MONDAY...CIRRUS DECK WILL BEGIN TO APPROACH IN THE AFTERNOON AS SURFACE LOW PRESSURE...CURRENTLY OVER THE CENTRAL PLAINS...BEGINS TO PUSH NORTHEASTWARD TOWARD THE GREAT LAKES. THE NEXT CHANCE FOR IFR RESTRICTIONS IN RAIN WILL BE MONDAY NIGHT THROUGH AT LEAST WEDNESDAY AS THE COLD FRONT PASSES OVER THE REGION TUESDAY. BEHIND THE COLD FRONT IFR-MVFR RESTRICTIONS WILL CONTINUE WEDNESDAY NIGHT AND THURSDAY...ESPECIALLY FOR THE NORTHERN TERMINALS...AS LAKE ENHANCED SNOW SHOWERS DEVELOP. ANOTHER AVIATION CONCERN WILL BE HIGH WINDS AND LOW LEVEL WIND SHEAR LATE MONDAY AND TUESDAY. BUFKIT PROFILES ARE INDICATING SOUTHEAST SURFACE WIND AT SPEEDS OF 15 TO 30 KTS TUESDAY AND WINDS AT 2 THOUSAND FEET AROUND 55 KTS. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && $$ Link to comment Share on other sites More sharing options...
blackngoldrules Posted November 29, 2010 Share Posted November 29, 2010 Looking at the 12Z NAM and GFS for Wednesday, things still look a bit interesting as far as us maybe getting our first accumulating snow of the season once the front moves through. It'll be interesting to track the next couple of days. The heavy amounts of rain we get before the changeover may cut down on accumulation though with a very soggy ground initially. The cold air has to hit us rather quickly if we're going to see anything worth noting in terms of accumulation. Otherwise, it'll just be some scattered snow showers on the backside. Link to comment Share on other sites More sharing options...
meatwad Posted November 29, 2010 Share Posted November 29, 2010 FLOOD WATCH NATIONAL WEATHER SERVICE PITTSBURGH PA 109 PM EST MON NOV 29 2010 PAZ009-014>016-021>023-029-031-073-075-WVZ021-022-300315- /O.NEW.KPBZ.FA.A.0004.101130T1700Z-101202T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FOREST-BUTLER-CLARION-JEFFERSON PA-ALLEGHENY-ARMSTRONG-INDIANA- WASHINGTON-GREENE-WESTMORELAND-FAYETTE-MARION-MONONGALIA- INCLUDING THE CITIES OF...TIONESTA...BUTLER...ZELIENOPLE... CLARION...PUNXSUTAWNEY...BROOKVILLE...REYNOLDSVILLE...BROCKWAY... PITTSBURGH METRO AREA...KITTANNING...FORD CITY...LEECHBURG... FREEPORT...APOLLO...INDIANA...WASHINGTON...CANONSBURG...DONORA... CALIFORNIA...CHARLEROI...MONONGAHELA...MCMURRAY...WAYNESBURG... FAIRDALE...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE... MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION...FAIRMONT... MORGANTOWN 109 PM EST MON NOV 29 2010 ...FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH THURSDAY MORNING... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF PENNSYLVANIA AND NORTHERN WEST VIRGINIA...INCLUDING THE FOLLOWING AREAS...IN PENNSYLVANIA... ALLEGHENY...ARMSTRONG...BUTLER...CLARION...FAYETTE...FOREST... GREENE...INDIANA...JEFFERSON PA...WASHINGTON AND WESTMORELAND. IN NORTHERN WEST VIRGINIA...MARION AND MONONGALIA. * FROM TUESDAY AFTERNOON THROUGH THURSDAY MORNING * A STORM SYSTEM WILL BRING HEAVY RAINS TO THE AREA TUESDAY AND TUESDAY NIGHT. THE POTENTIAL EXISTS FOR WIDESPREAD RAINFALL AMOUNTS OF 1.25 TO 2.00 INCHES. * THE HEAVY RAINFALL WILL CAUSE RISES IN STREAMS AND CREEKS AND RESULT IN THE POTENTIAL FOR FLOODING TUESDAY AFTERNOON THROUGH THURSDAY MORNING.. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$ URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE PITTSBURGH PA 109 PM EST MON NOV 29 2010 ...STRONG WIND GUSTS EARLY TUESDAY... OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-029- 031-073-075-WVZ001>004-012-021-022-300315- /O.NEW.KPBZ.WI.Y.0004.101130T0800Z-101130T1700Z/ TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO-FOREST- LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY-ARMSTRONG- INDIANA-WASHINGTON-GREENE-WESTMORELAND-FAYETTE-HANCOCK-BROOKE- OHIO-MARSHALL-WETZEL-MARION-MONONGALIA- INCLUDING THE CITIES OF...NEW PHILADELPHIA...DOVER... UHRICHSVILLE...CARROLLTON...EAST LIVERPOOL...SALEM...COLUMBIANA... EAST PALESTINE...WELLSVILLE...CALCUTTA...COSHOCTON...CADIZ... HOPEDALE...STEUBENVILLE...ZANESVILLE...CAMBRIDGE... MARTINS FERRY...ST. CLAIRSVILLE...BELLAIRE...BARNESVILLE... SHADYSIDE...BRIDGEPORT...CALDWELL...WOODSFIELD...SHARON... HERMITAGE...GROVE CITY...GREENVILLE...FARRELL...OIL CITY... FRANKLIN...SUGARCREEK...TIONESTA...NEW CASTLE...ELLWOOD CITY... BUTLER...ZELIENOPLE...CLARION...PUNXSUTAWNEY...BROOKVILLE... REYNOLDSVILLE...BROCKWAY...ALIQUIPPA...BEAVER FALLS...AMBRIDGE... MONACA...BEAVER...PITTSBURGH METRO AREA...KITTANNING... FORD CITY...LEECHBURG...FREEPORT...APOLLO...INDIANA... WASHINGTON...CANONSBURG...DONORA...CALIFORNIA...CHARLEROI... MONONGAHELA...MCMURRAY...WAYNESBURG...FAIRDALE...GREENSBURG... NEW KENSINGTON...JEANNETTE...LATROBE...MONESSEN...UNIONTOWN... CONNELLSVILLE...POINT MARION...TORONTO...WEIRTON...WHEELING... MOUNDSVILLE...NEW MARTINSVILLE...FAIRMONT...MORGANTOWN 109 PM EST MON NOV 29 2010 ...WIND ADVISORY IN EFFECT FROM 3 AM TO NOON EST TUESDAY... THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO NOON EST TUESDAY. * TIMING: TUESDAY 3AM THROUGH NOON. * WINDS: GUSTS 45 TO 50 MPH. * IMPACTS: DOWNED TREES. POWER FLUCTUATIONS AND OUTAGES. DEBRIS ON ROADS. STRONG CROSS WINDS WHILE DRIVING...ESPECIALLY IN OPEN AREAS AND ACROSS BRIDGES. CONSTRUCTION SITES ARE VULNERABLE LOCATIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WIND GUSTS GREATER THAN 45 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ Link to comment Share on other sites More sharing options...
blackngoldrules Posted November 29, 2010 Share Posted November 29, 2010 NATIONAL WEATHER SERVICE PITTSBURGH PA 332 PM EST MON NOV 29 2010 .SYNOPSIS... -- Changed Discussion --A STRONG COLD FRONT WILL BRING RAIN AND GUSTY WINDS LATE TONIGHT INTO WEDNESDAY MORNING. AS COLDER AIR MOVES IN WEDNESDAY...RAIN WILL GRADUALLY CHANGEOVER TO SNOW SHOWERS.-- End Changed Discussion -- && .NEAR TERM /THROUGH TUESDAY NIGHT/... -- Changed Discussion --WEATHER SHOULD BE TRANQUIL ACROSS THE REGION THIS EVENING...WITH CLOUDS MOVING IN FROM THE WEST. LOW PRESSURE CURRENTLY OVER THE CENTRAL PLAINS WILL DEEPEN AS IT MOVES OVER WESTERN LAKE SUPERIOR BY TUESDAY MORNING. THE ASSOCIATED COLD FRONT WILL BE THE MAIN WEATHER FEATURE DURING THE NEXT 24 HOURS. FRONT APPEARS TO BE MOVING SLIGHTLY SLOWER...SO HAVE DELAYED ARRIVAL OF RAIN BY A FEW HOURS IN THE WESTERN COUNTIES OVERNIGHT. THE FRONTAL PASSAGE ITSELF IS NOT EXPECTED UNTIL SOMETIME TUESDAY AFTERNOON. AHEAD OF THE COLD FRONT...EXTREMELY STRONG SOUTHERLY WINDS ARE EXPECTED. ALTHOUGH SUSTAINED SURFACE WINDS ARE FORECAST TO BE 15-25 MPH...THERE IS THE POSSIBILITY FOR WINDS OVER 50 MPH TO MIX TO THE SURFACE IN GUSTS. AS A RESULT...HAVE GONE WITH A WIND ADVISORY FOR ALL COUNTIES LATE TONIGHT THROUGH TUESDAY MORNING. IN ADDITION...NEWEST MODEL GUIDANCE SHOW A SLIGHTLY SLOWER FRONTAL PASSAGE. MOST RAINFALL ACROSS OHIO WILL OCCUR TUESDAY...WITH RAINFALL ACROSS EASTERN COUNTIES PRIMARILY FALLING TUESDAY AFTERNOON AND EVENING. RAINFALL TOTALS HAVE BEEN SLIGHTLY INCREASED...WITH WIDESPREAD RAINFALL BETWEEN 1.5 AND 2.5 INCHES...WITH HIGHEST TOTALS TO THE EAST. WITH HIGHER QPF TOTALS...HAVE ALSO ISSUED A FLOOD WATCH FOR COUNTIES IN PA AND WV. FINALLY...INSTABILITY VALUES ARE VERY SMALL...BUT ARE ABOVE ZERO AT TIMES ON TUESDAY. A RUMBLE OF THUNDER CANNOT BE RULED OUT DURING THE DAY. TUESDAY WILL BE THE LAST DAY WITH ABOVE NORMAL TEMPERATURES...WITH HIGHS IN THE 50S.-- End Changed Discussion -- && .SHORT TERM /WEDNESDAY THROUGH THURSDAY/... -- Changed Discussion --COOLER AIR WILL BEGIN TO ARRIVE FROM THE WEST...EVENTUALLY CHANGING WRAPAROUND SHOWERS FROM RAIN TO SNOW WEDNESDAY AFTERNOON. PRIMARY THREAT FOR PRECIPITATION IS FROM UPSLOPE FLOW...SINCE WINDS SHOULD HAVE ENOUGH OF A SOUTHERLY COMPONENT TO PREVENT LAKE EFFECT. PRECIPITATION SHOULD COME TO AN END AT MOST LOCATIONS BY THURSDAY MORNING. TEMPS WILL BE MUCH COLDER...WITH HIGHS IN THE UPPER 30S AND LOWS IN THE MID 20S.-- End Changed Discussion -- Link to comment Share on other sites More sharing options...
north pgh Posted November 30, 2010 Share Posted November 30, 2010 Looking at the 12Z NAM and GFS for Wednesday, things still look a bit interesting as far as us maybe getting our first accumulating snow of the season once the front moves through. It'll be interesting to track the next couple of days. The heavy amounts of rain we get before the changeover may cut down on accumulation though with a very soggy ground initially. The cold air has to hit us rather quickly if we're going to see anything worth noting in terms of accumulation. Otherwise, it'll just be some scattered snow showers on the backside. I am looking at the clipper-like system moving down next Monday or so. Looks like it is getting stronger run to run. A ways out but something to watch. Link to comment Share on other sites More sharing options...
psnnstater77 Posted November 30, 2010 Share Posted November 30, 2010 Forecast for tomorrow is a mess, they have me getting 1-4" of snow, but 30 miles west no snow accumulations.. I find it hard press to think we will have any real accumulations tomorrow. Grass may get white, but roads should stay wet/dry from the snow we get. Link to comment Share on other sites More sharing options...
PittWeatherWatch Posted November 30, 2010 Share Posted November 30, 2010 if only Link to comment Share on other sites More sharing options...
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