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Pittsburgh PA ❄️ Winter 2017-2018


north pgh

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12 minutes ago, CoraopolisWx said:

Checking out the traffic cams this afternoon, I noticed the 28 corridor was almost bare in many spots.

I thought at first the images were from yesterday, but it was actually real time.

There must've been a pocket of dry air in that area, causing the low amounts.

That band gave me like an inch. Easy to shovel but it's freezing with that wind. 

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9 hours ago, CoraopolisWx said:

Checking out the traffic cams this afternoon, I noticed the 28 corridor was almost bare in many spots.

I thought at first the images were from yesterday, but it was actually real time.

There must've been a pocket of dry air in that area, causing the low amounts.

Nah... just my back yard that caused it, :P I usually do ok in these situations, but that is the fickle nature of LES, live by the sword die by the sword.

The clipper has also trended worse, a few ticks north in the track over the past few runs and a little less qpf. Looks like most of SWPA finds themselves in a dry slot for some period of the storm. If it takes a 75 mile further SW trajectory it would probably allow at least Westmoreland and Allegheny counties to make it into the advisory level snows. Seems like there is a narrow corridor of North Eastern Westmoreland and Northern Allegheny that has been on the fringes either to the north or south of a lot of events in the past couple of years.

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7 hours ago, olafminesaw said:

Yes please

gfs_mslp_pcpn_frzn_eus_41.png

 

00z ENS and OPS runs look to be a pretty big improvement in the longer range. Less of a trough in the SW and thus LES SE Ridge response. Still has a gradient \ over running look. Quite a temperature contrast over a relatively short distance will allow pretty much any low pressure area the opportunity to bring some wintry weather, but the risk for a cutter or just being on the wrong side of the fence increases. I expect more volatility than normal as we head into that period, but hopefully we see last nights trend continue.

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Here is the sounding for the "dry slot" of the clipper. Looks relatively saturated to me. I think tonight is a close call event. Im still going with 2-3 and hoping for 4. 

For what it is worth, the UKie looks the best out of all the model right now for us. Precip shield definitely over SW Pa.

Screen Shot 2017-12-13 at 8.11.10 AM.png

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URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
208 PM EST Wed Dec 13 2017

OHZ039-040-049-050-PAZ021-029-031-073-075-WVZ001>003-509-510-
140315-
/O.EXA.KPBZ.WW.Y.0020.171213T2100Z-171214T1200Z/
Tuscarawas-Carroll-Harrison-Jefferson-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of New Philadelphia, Dover, Carrollton,
Malvern, Cadiz, Steubenville, Pittsburgh Metro Area, Washington,
Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington,
Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Morgantown,
and Coopers Rock
208 PM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
including during the afternoon commute on Wednesday and the morning
commute on Thursday. Total snow accumulations of 2 to 4 inches
are expected.

* WHERE...Portions of southwest Pennsylvania, east central Ohio
and northern and northern panhandle of West Virginia.

* WHEN...Until 7 AM EST Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.


.

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26 minutes ago, MikeB_01 said:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
208 PM EST Wed Dec 13 2017

OHZ039-040-049-050-PAZ021-029-031-073-075-WVZ001>003-509-510-
140315-
/O.EXA.KPBZ.WW.Y.0020.171213T2100Z-171214T1200Z/
Tuscarawas-Carroll-Harrison-Jefferson-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of New Philadelphia, Dover, Carrollton,
Malvern, Cadiz, Steubenville, Pittsburgh Metro Area, Washington,
Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington,
Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Morgantown,
and Coopers Rock
208 PM EST Wed Dec 13 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM EST THURSDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
including during the afternoon commute on Wednesday and the morning
commute on Thursday. Total snow accumulations of 2 to 4 inches
are expected.

* WHERE...Portions of southwest Pennsylvania, east central Ohio
and northern and northern panhandle of West Virginia.

* WHEN...Until 7 AM EST Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
times.


.

Wow kpitt bad call on your 1 inch for the city noaa has issued a winter weather advisory it’s ok we all make mistakes enjoy your several inches .Does anyone remember when the last time we had a wwa befour Xmas ?

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25 minutes ago, southpark said:

Snowing in South Park.  So much for that dry air that wtae was talking about this morning that was going to keep the precipitation from starting until later this evening south of pittsburgh

Looks like a period of moderate snow is about to move through but it's not going to last very long. After that, we'll have a lull in the action for a while until some more moves in later. You can see some dry air in Ohio right now behind this first wave that's moving through.

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3 minutes ago, blackngoldrules said:

Looks like a period of moderate snow is about to move through but it's not going to last very long. After that, we'll have a lull in the action for a while until some more moves in later. You can see some dry air in Ohio right now behind this first wave that's moving through.

Yeah I see that. I just wasn't expecting anything at all until later.

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3 minutes ago, southpark said:

Yeah I see that. I just wasn't expecting anything at all until later.

I guess they didn't expect this first wave to develop out ahead of that drier air. At least it adds a little to the totals before the rest of it moves in later. Trying to be positive I guess. These little clipper events don't do much for me but I'll take what I can get at this point.

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