Area Forecast Discussion
Issued by NWS State College, PA

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636 FXUS61 KCTP 141740 AFDCTP Area Forecast Discussion National Weather Service State College PA 1240 PM EST Thu Dec 14 2017 .SYNOPSIS...
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A weak ridge of high pressure will slide across the region late today and tonight with cold, but mainly dry conditions. Another clipper will move north of the region overnight Friday and Saturday morning followed by high pressure and a brief moderating trend in the temperature Sunday. A series of cold fronts will move across the area late Sunday into Wednesday. Windy and colder temperatures will follow.
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&& .NEAR TERM /THROUGH TONIGHT/...
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Welcome back GOES 16! The high res meso loop shows the strato-cu bands streaking over the newly fallen snow. The clouds are thickest over the Laurels where a flurry may still fall out of the sky. A chilly night is in store. With lighter winds and a snow cover, central and northern areas will drop into the single digits and low teens. Some weak Lake Effect snow showers should affect our northwesternmost counties as the high slips past to our east.
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&& .SHORT TERM /FRIDAY/...
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After a cold start temperatures will recover only to highs near 20 in the north to around freezing in the extreme southeast. Clouds and snow showers will be most likely over the northern mountains as a shortwave turns the flow more NWLY and brings a chance of Lake Effect back into the areas normally affected this time of year.
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&& .LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
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A weak wave moving through the lakes will reinforce the cold air and probably keep it in place through Saturday. More ideal snow making weather. Even the GEFS shows some modest LES developing Friday afternoon and evening so some snow showers will likely affect our northwestern LES prone areas. Enjoy the December snow. A mid level wind max will drop southeast Friday night and early Saturday. Some snow showers expected, mainly across the west. I did up POPS some. Still looking mainly dry later Saturday into the first part of Sunday. A complex pattern will prevail after Sunday, with some energy from the southern branch of the westerlies becoming more active. Moisture from the Gulf of Mexico will be limited, with a ridge in place. Expect colder and more in the way of wind by later Tuesday into Wednesday.
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&& .AVIATION /17Z THURSDAY THROUGH MONDAY/...
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* Cloud/Ceiling info will be missing at KBFD until new part can be installed * Most of the region has VFR conditions. There are some lingering isolated light snow showers in the southwest mountains where MVFR ceilings are hanging toughest. Overnight will be clear to partly cloudy and cold with some MVFR ceilings expected to move back into the higher elevation terminals of the west and north. The chance of snow showers will be on the increase Friday, mainly over the north. Outlook... Sat...Scattered snow showers and local restrictions NW/Laurels. Sun-Mon...Mainly VFR.
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&& .CTP WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...La Corte NEAR TERM...Grumm/La Corte SHORT TERM...Grumm/La Corte LONG TERM...Lambert/Martin AVIATION...Grumm/La Corte

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