blackngoldrules Posted January 27, 2013 Share Posted January 27, 2013 So what does everyone think on the icing potential? I am leaning towards it warming up faster than anticipated. Still, it only takes a half hour of zr to cause any untreated surface to be dangerous. Well, I think one thing to consider is the surface temps are going to take longer than the air temps to warm up. We've been in the ice box all week and we have a pretty substantial snow cover right now. I've seen instances where the air temps are above freezing but the surface temps are still below freezing. I also think the warmup is going to be quick, but the morning rush may still be difficult. Even though my forecast says snow and freezing rain overnight, I'm willing to bet that whatever snow I see will be very short lived. I may see more of an ice accumulation here before the warmup tomorrow. Link to comment Share on other sites More sharing options...
north pgh Posted January 27, 2013 Author Share Posted January 27, 2013 So what does everyone think on the icing potential? I am leaning towards it warming up faster than anticipated. Still, it only takes a half hour of zr to cause any untreated surface to be dangerous. It usually warms faster in Allegheny County and south but I am not really sure about tomorrow morning. I was just out and that air is cold and the snow covered ground is hard as a rock. If I had my guess I would say that it warms up enough after daybreak to keep the roads wet but I think the sidewalks and snow covered ground areas will hold onto the ice longer. I don't think the trees and powerlines will be an issue. They usually aren't around here unless the air temp doesn't get above freezing but around here we usually go above freezing pretty quickly and it melts off. I do remember 2 years ago we had a bad icing on a sunday morning which sent many people to the hospital after falling. Probably best to not go out until after 10:00 if you don't have to and stock up on salt. Remind you, these are all just guesses of mine. Butler County and Northeast...Now that's a different story. Also, on the extended, another potential clipper comes down next weekend. Very early but it could be another one similar to yesterdays. Link to comment Share on other sites More sharing options...
blackngoldrules Posted January 27, 2013 Share Posted January 27, 2013 I have a temp. gun that you can point at anything and it tells you the temp. immediately of whatever you are pointing at. Of course, I can't find it right now, but it would be interesting to point it at the pavement outside to see how much colder the surface temps are to the air temp. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 28, 2013 Share Posted January 28, 2013 TWC local forecast wants to downplay the ice, and warm temps quickly before rush hour. I think the NWS has a better idea on what will happen overnight into rush hour. i think the streets and secondary roads are gonna be bad tomorrow morning, I was out earlier and everything along the edges of the street was frozen. Link to comment Share on other sites More sharing options...
Digger Posted January 28, 2013 Share Posted January 28, 2013 I have one of those IR temp guns too. Right now, the blacktop street and driveway read 30, the snow next to them reads 28. (Although I've never had complete faith in its accuracy, especially in matters of only a few degrees.) I was thinking rather optimistically this afternoon about pavement temps, as the roads were clear and dry, and there was enough sun to make a difference. Given the forecast low tonight being only a few degrees below freezing, it might not take much to warm road surfaces to above freezing, either through WAA or daylight. Link to comment Share on other sites More sharing options...
north pgh Posted January 28, 2013 Author Share Posted January 28, 2013 Light flurries have started here. Link to comment Share on other sites More sharing options...
sunnykay Posted January 28, 2013 Share Posted January 28, 2013 Harrison City area, was changing over to freezing rain at 3 AM. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 28, 2013 Share Posted January 28, 2013 Kinda what I thought, not a horrible ice event, but still very slick on all surfaces. Link to comment Share on other sites More sharing options...
north pgh Posted January 28, 2013 Author Share Posted January 28, 2013 Kinda what I thought, not a horrible ice event, but still very slick on all surfaces. Yes, same here. Sidewalks and side streets are icy and slushy. My temperature just hit 33 so you can hear a lot of melting and dripping from the trees and rooftops. Link to comment Share on other sites More sharing options...
Jen16226 Posted January 28, 2013 Share Posted January 28, 2013 Up in Armstrong we had the 1/10 of ice on top of about 1/4 of snow, then we had some sleet mixed in as well. It was quite slick up there and on the way to work at about 8:30, it was still freezing rain until through Slate Lick area. Link to comment Share on other sites More sharing options...
north pgh Posted January 28, 2013 Author Share Posted January 28, 2013 37 degrees here now. The thaw begins. Link to comment Share on other sites More sharing options...
blackngoldrules Posted January 28, 2013 Share Posted January 28, 2013 39 here now. It'll be melting snow and fog for a while. Link to comment Share on other sites More sharing options...
north pgh Posted January 29, 2013 Author Share Posted January 29, 2013 56 here and my snow is gone. Looks like after 2 days of this we go back to cold and snow. This little clipper-like snow could be hanging after the cold front on Thursday right thru the weekend. Link to comment Share on other sites More sharing options...
colonel717 Posted January 29, 2013 Share Posted January 29, 2013 Looks to be several nice little snow events starting Thursday thru next Tuesday to keep an eye on. None look to be major, but look to keep our area snowy with snow showers and disturbances like the one we had last week. Link to comment Share on other sites More sharing options...
meatwad Posted January 29, 2013 Share Posted January 29, 2013 DAY 2 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1130 AM CST TUE JAN 29 2013 VALID 301200Z - 311200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE SERN STATES...OH VALLEY INTO THE MID ATLANTIC REGION... ...SYNOPSIS... AXIS OF HIGH AMPLITUDE SYNOPTIC TROUGH SHOULD EXTEND FROM THE UPPER MS VALLEY INTO THE SRN PLAINS EARLY WEDNESDAY. A VORT MAX EMBEDDED WITHIN THE TROUGH IS FORECAST TO MOVE FROM THE MID MS VALLEY INTO THE GREAT LAKES. WHILE SECONDARY VORT MAX WILL EJECT NEWD THROUGH THE TN AND OH VALLEYS DURING THE AFTERNOON AND EVENING. A 120+ KT 500 MB JET ACCOMPANYING THE UPPER TROUGH WILL DEVELOP ENEWD THROUGH SERN STATES...OH VALLEY AND GREAT LAKES DURING THE DAY. PRIMARY SFC LOW WILL INITIALLY BE SITUATED OVER THE GREAT LAKES WITHIN THE EXIT REGION OF THE UPPER JET. THIS FEATURE WILL LIFT NEWD INTO SERN CANADA...WHILE TRAILING COLD FRONT ADVANCES THROUGH THE SERN STATES...REACHING THE NERN U.S. AND ATLANTIC SEABOARD LATE WEDNESDAY NIGHT. ...SERN U.S. THROUGH OH VALLEY AND MID ATLANTIC REGION... PARTIALLY MODIFIED GULF AIR WILL HAVE ALREADY ADVECTED THROUGH THE WARM SECTOR ALONG A VERY STRONG AND EXPANSIVE 65-75 KT SLY LLJ. DEWPOINTS WILL RANGE FROM MID TO UPPER 60S OVER SRN PORTIONS OF THE GULF COASTAL STATES TO UPPER 50S OR AROUND 60 FROM THE OH VALLEY INTO THE MID ATLANTIC REGION. HOWEVER...INSTABILITY IS EXPECTED TO REMAIN MARGINAL DUE TO WIDESPREAD CLOUDS AND WEAK LAPSE RATES. MLCAPE SHOULD RANGE FROM AOB 800 J/KG OVER THE SERN STATES TO AOB 500 J/KG FARTHER NORTH ACROSS THE OH VALLEY AND MID ATLANTIC. EXPANSIVE LINE OF STORMS WILL BE IN PROGRESS WEDNESDAY MORNING ALONG AND JUST AHEAD OF COLD FRONT FROM THE OH VALLEY SWD THROUGH THE TN AND LOWER MS VALLEY REGIONS POSING AN ONGOING SEVERE THREAT. ACTIVITY WILL CONTINUE THROUGH THE REMAINDER OF SERN STATES AND OH VALLEY DURING THE DAY AND CAROLINAS TO MID ATLANTIC WEDNESDAY EVENING AND OVERNIGHT. STORMS WILL BE EMBEDDED WITHIN VERY STRONG DEEP LAYER WIND PROFILES WITH EFFECTIVE SHEAR IN EXCESS OF 60 KT ALONG WITH LARGE 0-1 KM HODOGRAPHS SUPPORTING THE LIKELIHOOD OF EMBEDDED BOWING STRUCTURES...MESO-VORTICES AND SUPERCELLS. POTENTIAL FOR LARGE SCALE ASCENT WITHIN UPPER JET ENTRANCE REGION AND WEAK CAP SUGGEST A FEW DISCRETE SUPERCELLS MIGHT DEVELOP ALONG CONVEYOR BELT AHEAD OF THE LINE...ESPECIALLY OVER A PORTIONS OF THE SERN STATES WHERE HIGHER BOUNDARY LAYER DEWPOINTS AND INSTABILITY SHOULD RESIDE. PRIMARY THREATS WILL BE DAMAGING WIND AND A FEW TORNADOES...WITH THE GREATER TORNADO THREAT EXPECTED OVER THE SERN STATES. THE MARGINAL THERMODYNAMIC ENVIRONMENT PRECLUDES AN UPGRADE TO A MODERATE RISK AT THIS TIME...BUT AREA WILL CONTINUE TO BE EVALUATED. ..DIAL.. 01/29/2013 CLICK TO GET WUUS02 PTSDY2 PRODUCT NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z CURRENT UTC TIME: 1837Z (1:37PM), RELOAD THIS PAGE TO UPDATE THE TIME Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 30, 2013 Share Posted January 30, 2013 It's a good ole fashion torch. If we get some sun early on, the severe storms could really start to pop. Link to comment Share on other sites More sharing options...
Rolling Snowed Posted January 30, 2013 Share Posted January 30, 2013 Love it! Svr Watch in January... Severe Thunderstorm Watch 20 < Previous WW Public (Test) | Counties | Probabilities | Aviation | Warnings | Initial RADAR Hazard Tornadoes EF2+ Tornadoes Likelihood Low Very Low Severe Wind 65 kt+ Wind Moderate Moderate Severe Hail 2"+ Hail Very Low Very Low Note: Click for Watch Status Reports. WOUS64 KWNS 301326 WOU0 BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 20 NWS STORM PREDICTION CENTER NORMAN OK 830 AM EST WED JAN 30 2013 SEVERE THUNDERSTORM WATCH 20 IS IN EFFECT UNTIL 400 PM EST FOR THE FOLLOWING LOCATIONS MDC023-302100- /O.NEW.KWNS.SV.A.0020.130130T1330Z-130130T2100Z/ MD . MARYLAND COUNTIES INCLUDED ARE GARRETT OHC009-013-019-029-059-067-081-111-115-121-167-302100- /O.NEW.KWNS.SV.A.0020.130130T1330Z-130130T2100Z/ OH . OHIO COUNTIES INCLUDED ARE ATHENS BELMONT CARROLL COLUMBIANA GUERNSEY HARRISON JEFFERSON MONROE MORGAN NOBLE WASHINGTON PAC003-005-007-019-051-059-063-125-129-302100- /O.NEW.KWNS.SV.A.0020.130130T1330Z-130130T2100Z/ PA . PENNSYLVANIA COUNTIES INCLUDED ARE ALLEGHENY ARMSTRONG BEAVER BUTLER FAYETTE GREENE INDIANA WASHINGTON WESTMORELAND VAC021-035-071-077-155-173-185-197-640-750-302100- /O.NEW.KWNS.SV.A.0020.130130T1330Z-130130T2100Z/ VA . VIRGINIA COUNTIES INCLUDED ARE BLAND CARROLL GILES GRAYSON PULASKI SMYTH TAZEWELL WYTHE VIRGINIA INDEPENDENT CITIES INCLUDED ARE GALAX RADFORD WVC001-007-009-013-015-017-019-021-025-029-033-041-047-049-051- 055-061-063-067-069-073-075-077-081-083-085-087-089-091-093-095- 097-101-103-105-107-109-302100- /O.NEW.KWNS.SV.A.0020.130130T1330Z-130130T2100Z/ WV . WEST VIRGINIA COUNTIES INCLUDED ARE BARBOUR BRAXTON BROOKE CALHOUN CLAY DODDRIDGE FAYETTE GILMER GREENBRIER HANCOCK HARRISON LEWIS MARION MARSHALL MCDOWELL MERCER MONONGALIA MONROE NICHOLAS OHIO PLEASANTS POCAHONTAS PRESTON RALEIGH RANDOLPH RITCHIE ROANE SUMMERS TAYLOR TUCKER TYLER UPSHUR WEBSTER WETZEL WIRT WOOD WYOMING ATTN...WFO...PBZ...RLX...RNK... Link to comment Share on other sites More sharing options...
blackngoldrules Posted January 30, 2013 Share Posted January 30, 2013 Looks like we may have some storms getting ready to move in. Either that or it's just a line of heavier rain. Looked more impressive a few hours ago than it does now. Link to comment Share on other sites More sharing options...
PottercountyWXobserver Posted January 30, 2013 Share Posted January 30, 2013 Has there ever been a SW watch in January before? Link to comment Share on other sites More sharing options...
meatwad Posted January 30, 2013 Share Posted January 30, 2013 SEVERE THUNDERSTORM WARNING PAC003-125-WVC069-301530- /O.NEW.KPBZ.SV.W.0003.130130T1451Z-130130T1530Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 951 AM EST WED JAN 30 2013 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN ALLEGHENY COUNTY IN SOUTHWEST PENNSYLVANIA... WASHINGTON COUNTY IN SOUTHWEST PENNSYLVANIA... SOUTHEASTERN OHIO COUNTY IN NORTHERN WEST VIRGINIA... * UNTIL 1030 AM EST * AT 949 AM EST...SEVERE SHOWERS WERE DETECTED ALONG A LINE EXTENDING FROM IMPERIAL TO 6 MILES EAST OF AVELLA TO 8 MILES SOUTHWEST OF CLAYSVILLE...AND WERE MOVING EAST AT 50 MPH. THIS LINE OF SHOWERS IS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. * LOCATIONS IMPACTED INCLUDE... BURGETTSTOWN... AVELLA... FLORENCE... CLAYSVILLE... IMPERIAL... MCDONALD... OAKDALE... ENTERPRISE... CANONSBURG... WASHINGTON... BRIDGEVILLE... CARNEGIE... PRECAUTIONARY/PREPAREDNESS ACTIONS... ALTHOUGH THIS LINE OF SHOWERS IS NOT PRODUCING MUCH LIGHTNING...IT IS STILL DANGEROUS. PREPARE FOR DAMAGING WIND GUSTS. MOVE INTO A STURDY BUILDING AND AVOID WINDOWS. PLEASE REPORT SEVERE WEATHER BY CALLING...412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH. && LAT...LON 4028 7982 4002 8002 4003 8059 4018 8050 4048 8043 4052 7975 TIME...MOT...LOC 1450Z 270DEG 43KT 4047 8031 4028 8034 4005 8051 $$ WOODRUM Link to comment Share on other sites More sharing options...
meatwad Posted January 30, 2013 Share Posted January 30, 2013 Getting Very Windy and Dark here. Link to comment Share on other sites More sharing options...
meatwad Posted January 30, 2013 Share Posted January 30, 2013 raining very hard now. Link to comment Share on other sites More sharing options...
north pgh Posted January 30, 2013 Author Share Posted January 30, 2013 Not much here. The line kind of split and it looks like most went south of me. I had a downpour that lasted about 2 minutes, then I had a few wind gusts of over 35. That was pretty much it. Now I just have light rain and breezy conditions. Link to comment Share on other sites More sharing options...
Mailman Posted January 30, 2013 Share Posted January 30, 2013 Wind was crankin' here about an hour ago. 45-50mph for a short period of time. Link to comment Share on other sites More sharing options...
north pgh Posted January 31, 2013 Author Share Posted January 31, 2013 Winds are picking up. Still waiting for the temp to start dropping. Holding at 50. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 31, 2013 Share Posted January 31, 2013 (Weenie talk here) It would be nice if "you know who", would like to attend it's "20th reunion". I know folks across the board like to gush about 2/5/10, but in reality, 3/13/93 pisses on 2/5/10. And it's not even close. http://www.ncdc.noaa.gov/snow-and-ice/rsi/nesis Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 31, 2013 Share Posted January 31, 2013 Looks like the front is about to enter Beaver county, might stay up and see what happens around here. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted January 31, 2013 Share Posted January 31, 2013 Driving west from Cranberry on the turnpike is gonna get rough real soon. Link to comment Share on other sites More sharing options...
north pgh Posted January 31, 2013 Author Share Posted January 31, 2013 Winds gusting to 44 mph in Wheeling last hour. The line is right on our doorstep. Should hear the howling winds real soon. Link to comment Share on other sites More sharing options...
Paweatherguy1 Posted January 31, 2013 Share Posted January 31, 2013 Winds gusting to 44 mph in Wheeling last hour. The line is right on our doorstep. Should hear the howling winds real soon. Scared the crap out of me. Had to have a gust down here near 60. Was about to fall asleep, and had the window open, and just all of a sudden, "WHAM." Link to comment Share on other sites More sharing options...
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