Area Forecast Discussion
Issued by NWS State College, PA
Issued by NWS State College, PA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
200 FXUS61 KCTP 022030 AFDCTP Area Forecast Discussion National Weather Service State College PA 330 PM EST Tue Dec 2 2025 .SYNOPSIS... * Clouds break southeast; otherwise lingering flurries and pockets of freezing drizzle in the Laurel Highlands * Arctic cold front delivers snow showers/squalls? Wednesday night into Thursday and frigid temperatures Thursday night * Winter pattern continues over the weekend and into next week && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... The first widespread snowfall event of the season has ended with much of CPA picking up 2-4/3-5 inches. Rain/sleet/ice mix cut amounts to an inch or less across the far southeast portion of the Lower Susquehanna Valley. See latest LSR/PNS snow reports. Rather cloudy with flurries into the evening and early tonight before downslope flow trends sky cover to partly cloudy to the east of the Alleghenies. More persistent and relatively moist upslope flow/orographic lift will keep light snow and areas of freezing drizzle over the Laurel Highlands -- and we extended the winter wx advisory until 10PM with collab from LWX and PBZ. Slushy areas and standing water from melting snow may result in slick spots/black ice tonight into Wednesday morning with lows in the teens and 20s. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... Sfc ridging on Wednesday yields to arctic cold front plowing southeast across the Lower Great Lakes through CPA Thursday. Light snow/snow showers should accompany the front over the western and northern Alleghenies and could spill into the central ridge and valley region. SNSQ risk parameter and model trends have ticked lower this cycle, but still can`t rule them out. Fcst snow amounts are light (1" or less) and largely confined to the western high terrain, but some travel impacts are possible as far east as US220/I99 corridor. Temps will plunge behind the front as brisk NW flow sends readings falling NW->SE by Thursday afternoon; lows plummet into the frigid range (single digits and low teens) Thursday night and Friday morning with subzero wind chills over the mtns. && .LONG TERM /FRIDAY THROUGH TUESDAY/... Cold end to the week with fcst highs below the freezing mark in most of the CWA. Low track remains uncertain for Friday with the potential for snow to brush the southern tier of CPA. Otherwise, model trends favor ocnl snow showers downwind of Lake Erie over the weekend and possible clipper system during the first part of next week. Temperatures will remain below the historical average for early December. && .AVIATION /19Z TUESDAY THROUGH SUNDAY/... Widespread IFR to low end MVFR flying conditions in areas of very light snow or even some light freezing drizzle in favorable upslope areas of the Laurel Highlands and NW Mtns will prevail until around dusk, before retreating to the Western Mtns as a drying, NW downslope flow develops with the departure of low pressure that brought our morning to early PM bout of snow. Ceilings and vsbys in the Central Mtns and Susq Valley will improve to mainly MVFR to low end VFR overnight into Wed morning as northwest winds to increase to 10-15KTS and drier air advects into the region. Outlook... Wed-Sat...Trending drier, lingering snow across NW PA. Gusty winds return Thu aftn. && .CTP WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until 10 PM EST this evening for PAZ024-033. && $$ SYNOPSIS...Steinbugl NEAR TERM...Steinbugl SHORT TERM...Steinbugl LONG TERM...Steinbugl AVIATION...Lambert/Gartner