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. --
000 FXUS61 KPBZ 251032 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 532 AM EST Sat Feb 25 2017 .SYNOPSIS... A cold front will bring rain and gusty winds this morning. Temperatures behind the front will fall back to near seasonal averages by Sunday. && .NEAR TERM /THROUGH TONIGHT/... No changes needed early this morning as the ongoing forecast handles timing the cold front currently crossing the region well. Previous discussion follows.. Convective activity along a crossing cold front has largely diminished early this morning evolving to a solid line of light to moderate rain along and behind the front which is currently oriented along a line running roughly from Franklin to Wheeling. Upstream observations show rain amounts of around three-tenths of an inch over a six hour period and expect similar amounts as the front continues across the forecast area. While wind gusts have overall decreased from earlier...gusts up to 35 mph are still possible along and behind the front. Expect gusty winds to be maintained as the pressure gradient will remain tight over the course of the day...strengthening slightly during the afternoon and early evening. Scattered light showers will be possible at times over the course of the day as the upper level trough swings through...transitioning to snow this evening. In general, less than an inch is expected across northern counties and into the mountains. Little to no accumulation is expected elsewhere. Building high pressure will end precipitation chances overnight with the ridges and locations along and north of I-80 the last holdouts. Temperatures will fall back to near normal values by Sunday in the wake of the front. && .SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/... Temperatures should moderate Sunday to near normal values and cloud coverage will diminish as high pressure continues to build and lower levels dry out. && .LONG TERM /MONDAY THROUGH FRIDAY/... Minimal change made in the extended with broad southwesterly flow aloft progged through midweek. A weak disturbance may result in scattered light showers Monday afternoon, but better chances will follow midweek and again on Friday after a brief break with deeper moisture and multiple shortwaves cross the region. && .AVIATION /12Z SATURDAY THROUGH WEDNESDAY/... Showers and areas of MVFR conditions are expected this morning as a cold front crosses the area. Wind will veer to the W in the wake of the front this morning. Sfc gusts of 25 to 30kt will again be possible as MVFR stratocu and a few showers linger through the rest of the morning as an upper trough approaches. Enough mixing is expected to raise ceilings to VFR during the afternoon, though a reduction back to MVFR is expected N of I 80 this evening as the upper trough crosses and with WNW flow off the lakes results in scattered snow showers. .OUTLOOK... Occasional restrictions are again possible as the unsettled weather pattern is maintained for the first half of the week. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. && $$

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.