Mailman Posted February 8, 2017 Share Posted February 8, 2017 BOOM! PAZ073-075-090315- /O.EXA.KPBZ.WS.W.0001.170209T0000Z-170210T0000Z/ Westmoreland-Fayette- Including the cities of Murrysville, Greensburg, New Kensington, and Uniontown 211 PM EST Wed Feb 8 2017 ...WINTER STORM WARNING IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EST THURSDAY... The National Weather Service in Pittsburgh has issued a Winter Storm Warning for snow...which is in effect from 7 PM this evening to 7 PM EST Thursday. * SNOW ACCUMULATIONS...6 to 8 inches. * TIMING...the heaviest snow is expected late this evening into Thursday morning. * IMPACTS...The heavy snow will make many roads impassable and may produce widespread power outages due to the weight of the snow on tree limbs and power lines. * WINDS...Northwest 5 to 15 mph with gusts up to 25 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of snow are expected. This will make travel very hazardous. Please report snowfall by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 3 minutes ago, Mailman said: Pretty shocked that PBZ has been quiet the last few hours. There are hard at work with thinking caps on trying to figure out totals. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 3 minutes ago, north pgh said: Shall someone call over there and make sure they are alright? Looks like someone made the call URGENT - WINTER WEATHER MESSAGENational Weather Service Pittsburgh PA211 PM EST Wed Feb 8 2017PAZ014>016-021-022-029-031-WVZ002>004-012-021-509-090315-/O.NEW.KPBZ.WW.Y.0009.170209T0000Z-170209T1600Z/Butler-Clarion-Jefferson-Allegheny-Armstrong-Washington-Greene-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia-Including the cities of Butler, Clarion, Punxsutawney,Brookville, Pittsburgh Metro Area, Kittanning, Ford City,Washington, Canonsburg, Waynesburg, Follansbee, Wellsburg,Wheeling, Moundsville, New Martinsville, Fairmont, and Morgantown211 PM EST Wed Feb 8 2017...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO11 AM EST THURSDAY...The National Weather Service in Pittsburgh has issued a WinterWeather Advisory for snow...which is in effect from 7 PM thisevening to 11 AM EST Thursday.* SNOW ACCUMULATIONS...4 to 6 inches.* TIMING...the heaviest snow is expected late this evening into Thursday morning.* IMPACTS...The heavy snow will create snow covered roads and produce scattered power outages.* WINDS...North 10 to 15 mph with gusts up to 25 mph.PRECAUTIONARY/PREPAREDNESS ACTIONS...A Winter Weather Advisory for snow means that periods of snowwill cause primarily travel difficulties. Be prepared for snowcovered roads and limited visibilities...and use caution whiledriving.Please report snowfall by calling 412-262-1988, posting to theNWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 RAP is 9 inches for most of the Pgh area Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 At least he has Pitt in correct Co.... Link to comment Share on other sites More sharing options...
Mailman Posted February 8, 2017 Share Posted February 8, 2017 Link to comment Share on other sites More sharing options...
Rd9108 Posted February 8, 2017 Share Posted February 8, 2017 Wow let's keep the mojo going. I like when our board is active. Link to comment Share on other sites More sharing options...
Burghblizz Posted February 8, 2017 Share Posted February 8, 2017 Winter UnCancel......let's roll Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 Storm is out of the area by 6am. Then snow squalls later in the day. Link to comment Share on other sites More sharing options...
Mailman Posted February 8, 2017 Share Posted February 8, 2017 .NEAR TERM /THROUGH THURSDAY/... An enhancing shortwave trough digging through the Ohio Valley will cause significant snowfall across parts of the forecast area. It's quite rare to see such high QPF and snow amounts projected by all models with an open wave passing through the region...so have constructed the best possible forecast in collaboration with WPC and neighboring offices. Latest model runs have: the low level low developing over the southern zones, significant moisture within the dendritic snow growth zone with strong omega fields just below it, and a deformation zone over the southeast zones correlating with a depicted reflectivity snow band. In short, the perfect ingredients are in projection within model data to produce significant snowfall in the 6 to 12 hour time frame across parts of the area. Some localized areas may receive more or less depending on where the mesoscale band sets up. There will probably be a sharp cutoff oriented NE/SW in snow amounts centralized around Allegheny county. Temperatures in the southern half of the CWA are still warm but projected to lower as colder air arrives with the precipitation. Rain/snow will quickly switch over to all wet heavy snow initially as dynamic cooling takes place. Expect the heaviest snow to fall in the first 12 hours of the synoptic event. The snow should shift east as the low translates towards the east coast by Thursday morning but snow showers will quickly develop via cold NW flow, increasing snow amounts over the area. Thus, some of the headlines continue past the end of the synoptic event. Inversions should lower late Thursday and high pressure building in will help diminish snow showers. Temperatures will fall toward the seasonal normal tonight, with well below normal temperatures in cold northwest flow Thursday. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 Would have liked something better from the 18z NAM Link to comment Share on other sites More sharing options...
Rd9108 Posted February 8, 2017 Share Posted February 8, 2017 Just now, MikeB_01 said: Would have liked something better from the 18z NAM Agreed guess we are going have to wait until nowcasting time. Link to comment Share on other sites More sharing options...
Burghblizz Posted February 8, 2017 Share Posted February 8, 2017 8 minutes ago, Mailman said: .NEAR TERM /THROUGH THURSDAY/... An enhancing shortwave trough digging through the Ohio Valley will cause significant snowfall across parts of the forecast area. It's quite rare to see such high QPF and snow amounts projected by all models with an open wave passing through the region...so have constructed the best possible forecast in collaboration with WPC and neighboring offices. Latest model runs have: the low level low developing over the southern zones, significant moisture within the dendritic snow growth zone with strong omega fields just below it, and a deformation zone over the southeast zones correlating with a depicted reflectivity snow band. In short, the perfect ingredients are in projection within model data to produce significant snowfall in the 6 to 12 hour time frame across parts of the area. Some localized areas may receive more or less depending on where the mesoscale band sets up. There will probably be a sharp cutoff oriented NE/SW in snow amounts centralized around Allegheny county. Temperatures in the southern half of the CWA are still warm but projected to lower as colder air arrives with the precipitation. Rain/snow will quickly switch over to all wet heavy snow initially as dynamic cooling takes place. Expect the heaviest snow to fall in the first 12 hours of the synoptic event. The snow should shift east as the low translates towards the east coast by Thursday morning but snow showers will quickly develop via cold NW flow, increasing snow amounts over the area. Thus, some of the headlines continue past the end of the synoptic event. Inversions should lower late Thursday and high pressure building in will help diminish snow showers. Temperatures will fall toward the seasonal normal tonight, with well below normal temperatures in cold northwest flow Thursday. Good discussion noting that without a closed 500 low, it's hard to get huge snow totals here. But also noting how this could really get thumping for a short period of time. Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 Yep. All of the NAM's dropped off. Still a solid 3-4 across the Pgh area. I just want it to start snowing so I can quit watching models and start fretting over the radar.... Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 RAP fell off to 7 inches from 9 in previous hour Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 12 minutes ago, colonel717 said: Yep. All of the NAM's dropped off. Still a solid 3-4 across the Pgh area. I just want it to start snowing so I can quit watching models and start fretting over the radar.... Think it might just be wobbling? It is also the 18z Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 1 minute ago, MikeB_01 said: Think it might just be wobbling? It is also the 18z It moved out quicker. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 Latest HRRR. Pretty steep cut off through AGC Link to comment Share on other sites More sharing options...
Rd9108 Posted February 8, 2017 Share Posted February 8, 2017 8 minutes ago, MikeB_01 said: Latest HRRR. Pretty steep cut off through AGC Like I said the short range models love overdoing amounits and they slowly drop with each future run. Link to comment Share on other sites More sharing options...
SteelCity08 Posted February 8, 2017 Share Posted February 8, 2017 Wow, I knew something good happened when I saw 4 new pages lol. Haven't seen that kind of excitement in a few years. Hopefully we can catch a break for once and get our ever elusive 6+ storm. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 SREF up a little bit from previous run. Link to comment Share on other sites More sharing options...
psunate1977 Posted February 8, 2017 Share Posted February 8, 2017 WOW.. Was hoping the snow would stick around a bit, but 60's this weekend? Geez Anyways, 3-6 looks pretty good, with the 6 being more towards the mountains. Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 Another look at RGEM Link to comment Share on other sites More sharing options...
Mailman Posted February 8, 2017 Share Posted February 8, 2017 RGEM is real solid. Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 2 minutes ago, Mailman said: RGEM is real solid. Yea Hope it verifies. Link to comment Share on other sites More sharing options...
Rd9108 Posted February 8, 2017 Share Posted February 8, 2017 Allegheny county is always a gradient. I hate it. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 HRRR a little up from previous hour as well.. I might be a little crazy over this storm, but I have been so desperate to track something. Link to comment Share on other sites More sharing options...
colonel717 Posted February 8, 2017 Share Posted February 8, 2017 1 minute ago, MikeB_01 said: HRRR a little up from previous hour as well.. I might be a little crazy over this storm, but I have been so desperate to track something. I think we are all with you.. Link to comment Share on other sites More sharing options...
MikeB_01 Posted February 8, 2017 Share Posted February 8, 2017 RAP is a little lower on the 21z run than t was on the 18z. Looks like the system is progressing faster than thought earlier. RAP seems to be picking up on ame thing the NAM was. Totals around an in lower than what they were earlier. Link to comment Share on other sites More sharing options...
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