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


PennMan

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LOL

A SHALLOW CNVCTV LINE LKLY WILL FORM AS VERY STRONG FORCING

BENEATH LEFT EXIT RGN OF UPR JET AND INCRG COLD AIR ADVCTN ALOFT

HELP TO STEEPEN LAPSE RATES IN ADVC OF ARRIVAL OF SFC BNDRY.

GIVEN THAT BNDRY LYR INVERSION WILL BE SHALLOW...IT WOULD NOT BE

SURPRISING TO SEE A FEW RPTS OF THUNDER AND WIND DMG ASSOCIATED

WITH MORE INTENSE UPDRAFTS.

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I'm taking Mega Bus. Hopefully they don't wimp out.

Eek. They have a reputation for being late even in good wx. Took one from State College to Pittsburgh in October and the bus arrived 2 hours late.

Still cloudy here as the sun goes down. Looks like we didn't get past 42 today, which is at least a step in the right direction even if it doesn't have huge implications for the event.

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Cold air continuing to lag well behind the precipitation. I am not saying that there will not be snow, in fact the threat for a coating to one inch is possible for most all locations. But most of the images being posted here this evening are primarily rain. The flash freeze is the biggest concern with rapid temperatures falls.

shd.gif

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Cold air continuing to lag well behind the precipitation. I am not saying that there will not be snow, in fact the threat for a coating to one inch is possible for most all locations. But most of the images being posted here this evening are primarily rain. The flash freeze is the biggest concern with rapid temperatures falls.

shd.gif

Snow is going to form in the cold sector back in KY, which it has started too.

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HRRR out to the end of the run is typically very inaccurate and should be taken with a grain of salt. Often overestimates snowfall with a tad cold bias. It is a good tool to understand the momentum of the precipitation shields, but otherwise be wary. Again when using the simulated radar feature, use the 1km reflectivity. Composite grossly overestimates the precipitation field.

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