Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
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 49 50
-- Remove Highlighting --
-- Discussion containing changed information from previous version are highlighted. --
872 FXUS61 KPBZ 031423 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 923 AM EST Sat Dec 3 2016 .SYNOPSIS... Cloudy and seasonably cool weather will continue today. The next chance for widespread precipitation will come early Tuesday. && .NEAR TERM /THROUGH TONIGHT/...
-- Changed Discussion --
With 9:15am update, minimal changes were made to hourly temperatures and sky cover, as well as adding some morning flurries to the forecast across the Pittsburgh metro area. Cold northwest flow off the Lakes will maintain widespread cloudiness. Low mixing levels/lack of dendrite formation will inhibit problematic snow shower potential. Weakening flow under building high pressure may alleviate the clouds tonight. Temperature under this low amplitude will remain near the seasonal averages.
-- End Changed Discussion --
&& .SHORT TERM /SUNDAY THROUGH TUESDAY/... Split mid level flow continues to result in a difficult precipitation forecast for Sunday afternoon and night. Have continued with chance pops everywhere, with a rain snow mix possible most areas. Again only light accumulation possible generally north of State route 422 in PA. Precipitation will shift east by Monday as shortwave exits east. Quiet weather will be short lived however as low pressure will be quickly moving northeast toward the region with mainly rain arriving Monday night and continuing into Tuesday. Temperatures will remain near normal. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... Timing of a strong cold front continues to be uncertain in the models, with the GFS still faster than the ECMWF. Have again used the model blend with a nod toward WPC extended progs. This will push the cold front across the region by Thursday, with much colder air and scattered snow showers to end the work week. && .AVIATION /15Z SATURDAY THROUGH WEDNESDAY/... MVFR cigs can be expected at all ports except ZZV through most of the day. Improvement is anticipated from the southwest tonight as northwest flow at the top of the boundary layer weakens, but restrictions with residual moisture and upslope should persist at FKL and DUJ into the night. Expect to see occasional gusts of 15 to 20kts today as cold advection maintains the mixing layer, which looks to be shallow enough to leave snow showers unmentionable. .OUTLOOK... Restrictions are likely with crossing low pressure systems during the first half of the new week. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$ is the U.S. government's official web portal to all federal, state and local government web resources and services.