Here is the latest Area Forecast Discussion for Central PA
This text statement is the latest forecast reasoning from the NWS in State College, PA
See the links at the bottom of the page for previous issuances/versions of the statement as well as our other text statements.
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925 FXUS61 KCTP 141034 AFDCTP Area Forecast Discussion National Weather Service State College PA 534 AM EST Sat Feb 14 2026 .WHAT HAS CHANGED... * Expanded coverage of light snow/flurries early this morning south of I-80 from the central ridge/valley region through the middle and lower Susquehanna Valley * Increased chances on the margin for wet snow accumulation late Sunday and Sunday night over south central/southeast PA && .KEY MESSAGES... 1) With a short-term predictability barrier still to be resolved, there are increased chances for wet snow on the margin late Sunday/Sunday night for south central/southeast PA 2) Welcomed warmup/thaw picks up some steam next week with an active precip pattern Wednesday into the second-to-last weekend of February && .DISCUSSION... KEY MESSAGE 1: With a short-term predictability barrier still to be resolved, there are increased chances for wet snow on the margin late Sunday/Sunday night for south central/southeast PA Recent trends in the model guidance (perhaps toward their AI counterparts) shows a northward creep of the precipitation shield associated with a strong southern stream shortwave and associated surface low tracking from the Lower MS Valley to the Outer Banks of NC. This is due to more interaction with a stronger (run/run) northern stream shortwave coming into western PA Sunday night. The eventual northern stream energy is coming onshore the Pacific NW this morning, and once over land should be better assimilated/initialized in subsequent short term and hires model runs. The other tricky aspects of the fcst include: relatively warm boundary layer/road temps, precip rates/banding, onset timing, elevation, and wet bulb effects. Without going to far into the weeds, the key takeaway for this cycle is that odds have increased on the margin for accumulating wet snowfall across south central and particularly southeast PA Sunday afternoon into Sunday night. The largest % chance increase is for areas to the east of I-81 with WPC, RRFS, and NBM showing low to moderate chances (30-50%) of snowfall totals >1 inch. The official NDFD fcst initialized off of the 14/01Z NBM is likely a bit too low at this point and would anticipate/front-run an uptick in POPs and snow amounts to be more in the C-1" range with the next cycle. There is the potential for additional changes to this forecast in the next 12-24 hours so continue to monitor especially for possible early Monday morning commute impacts. KEY MESSAGE 2: Welcomed warmup/thaw picks up some steam next week with an active precip pattern Wednesday into the second-to- last weekend of February Max/min temperatures over the next 7 days (2/14-2/20) are forecast to be above the historical average for mid/late February. To better contextualize the welcomed warmup/thaw: in some areas, a 7-day run of positive temp departures from normal has not happened since late September 2025! Surface low over the western High Plains by Tuesday should track eastward across the Dakotas/Upper Midwest into the Great Lakes by Thursday. A broad area of stratiform precip is fcst to the north and east of the low track near a low level baroclinic zone or temperature gradient with cold air closer to the Canadian border. There may be southward flex of strong arctic high that sends a weak backdoor front into PA; but outside of that scenario (increasing the odds for mixed precip especially over northern PA) the dominant ptype from midweek into the weekend looks like rain. An organized low pressure system is expected to develop across the Midwest and Ohio Valley to close out the work week. 12-24hr precip signals are maximized on Wednesday and Friday next week. && .AVIATION /12Z SATURDAY THROUGH WEDNESDAY/... Not a lot of change for the 12Z TAF package. The area of light snow showers and flurries is nearly out of our area as of 530 AM. Been adjusting the TAF for BFD some overnight. Earlier discussion below. Weak frontal system has pushed snow showers into northern PA as of late evening. BFD came down below 2 miles, but now up a bit. Models not quite as far south and east with this as obs and radar show at the current time. Anyway, looking at mainly VFR conditions today, away from BFD. Issue early on will be LLWS across the west. Skies clear out later today, especially in areas that are east of the mtns. Lower clouds could linger in BFD into tonight. Winds will weaken by sunset, as a weak high pressure builds into the area. Outlook... Sun...Low clouds with scattered rain/snow mix over the area. Mon...Low clouds linger much of the day. IFR expected NW. Tue...Mainly VFR. Wed...IFR -RA/cigs N, MVFR -RA/cigs elsewhere. && .CTP WATCHES/WARNINGS/ADVISORIES... None. && $$ WHAT HAS CHANGED...Steinbugl KEY MESSAGES...Steinbugl DISCUSSION...Steinbugl AVIATION...Martin |
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