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Central PA Thread - Met. Winter 11-12 Obs/Disco


PennMan

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For the past few days, GFS precipitation graph for KMDT was showing a very small window of snow at the tail end of this event. No longer, GFS is forecasting under an inch of rain (down from almost 1.5 inches earlier today), with no snowfall. I'd agree that the recently posted map is going to be a failure. I really do not expect an inch of snow in Lancaster.

It seems like the more recent runs of the models have been placing the axis of heavy precip associated with the upper level system more thru western PA up into western and central NY, thus the totals in the eastern zones could indeed be overdone. However, there will likely still be something that sweeps thru the state associated with the front that might rapidly change to snow and dump up to an inch in many spots. Wherever this axis of deform ends up setting up is probably going to get quick hitting advisory snowfall. This is going to be a very vigorous system, bringing a closed off sub 5200m (hella deep) low at 500mb right overhead. There's liable to be some surprises and difficult travel for whoever ends up in the synoptic snowfall path.

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It seems like the more recent runs of the models have been placing the axis of heavy precip associated with the upper level system more thru western PA up into western and central NY, thus the totals in the eastern zones could indeed be overdone. However, there will likely still be something that sweeps thru the state associated with the front that might rapidly change to snow and dump up to an inch in many spots. Wherever this axis of deform ends up setting up is probably going to get quick hitting advisory snowfall. This is going to be a very vigorous system, bringing a closed off sub 5200m (hella deep) low at 500mb right overhead. There's liable to be some surprises and difficult travel for whoever ends up in the synoptic snowfall path.

to jamie...doesnt sound like a wave on front so much as 20 min frontal passage.

lol - see the post above yours.

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People need to seriously calm down. There is no problem with people expressing their opinion. I see nothing wrong with the forecasts being suggested of mostly rain ending as some snow. A coating to one inch is not a big deal especially as a majority of the QPF will be rain. Northwest of the LSV looks best for any widespread accumulations.

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People need to seriously calm down. There is no problem with people expressing their opinion. I see nothing wrong with the forecasts being suggested of mostly rain ending as some snow. A coating to one inch is not a big deal especially as a majority of the QPF will be rain. Northwest of the LSV looks best for any widespread accumulations.

It's okay, Wmsptwx's cool....he just gets excited and posts before thinking sometimes and gets stuff wrong. Like light rain and wind on Friday. :lol:

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One thing looks certain, after whatever happens next week, the following week is torch city. I don't know if you guys look at other subforums, but the medium range thread in the Philly forum and the one on the main forecasting forum are good to read. Lot of the talk there is quite warm last week of January, not sure how long that would last.

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