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 141245 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 745 AM EST Sun Jan 14 2018 .SYNOPSIS... High pressure will maintain dry but cold weather today. Light snow returns Monday and Tuesday. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
-- Changed Discussion --
Updated to adjust sky fields for current trends. FKL is still reporting a snow flurry, and have added isolated flurries to cloud-covered areas for a few hours. This is due to the dendritic growth zone intersecting the ground at this point. Minor tweaks otherwise. Previous discussion... Surface high pressure and some minor height rises aloft will allow some moderation in temperatures and an increase in sunshine today.
-- End Changed Discussion --
&& .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/... Next system to bring the chance for light snow Monday and Monday night. Models still having timing issues, particularly when the snow will begin. It does appear that models are in agreement that snow will taper off from north to south Monday night, as much drier air aloft will invade the snow growth zone. Kept likely to categorical PoPs for much of the region, with PoPs decreasing from northwest to southeast late Monday night. . Behind this system, another shot of cold air. Expect little to no lake enhancement snow showers in the colder air, as winds aloft remain southwest through most of Tuesday, only late in the day, do they veer to the west, but by this time they rapidly weaken. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Upper trough will remain in place through much of the period, with more zonal flow expected by the end of the week, returning seasonable or slightly warmer values. Stayed close to the superblend for PoPs through this time frame, with no large systems expected. && .AVIATION /13Z SUNDAY THROUGH THURSDAY/... VFR conditions and light winds expected through the TAF period under high pressure. .OUTLOOK... The next chance of widespread restrictions will arrive on Monday with another round of snow. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...Wind Chill Advisory until 10 AM EST this morning for MDZ001. OH...None. PA...Wind Chill Advisory until 10 AM EST this morning for PAZ009- 016-023-074-076. WV...Wind Chill Advisory until 10 AM EST this morning for WVZ512>514. && $$ is the U.S. government's official web portal to all federal, state and local government web resources and services.