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 182303 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 603 PM EST Sat Feb 18 2017 .SYNOPSIS... Dry conditions are largely expected until the next frontal system crosses the region Tuesday afternoon and Wednesday. Well above normal temperatures are expected through the end of next week. && .NEAR TERM /THROUGH SUNDAY/...
-- Changed Discussion --
A relatively mild night in store across the region after the record temperatures observed this afternoon and increasing cloud coverage limits radiational cooling. See the climate section for more details on today`s records.
-- End Changed Discussion --
&& .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... Strong ridging builds in the wake of the departing low through this period, with 500mb heights approaching 576dam by Monday night/Tuesday. With nearly clear skies and warm advection, expect the continuation of very warm temperatures through Tuesday, before a cold front approaches Tuesday afternoon/night. Deterministic guidance continues to struggle with the timing of the front for Tuesday. Have opted to hold the likely PoPs but adjusted the timing based on a model blend for now, as it appears the GFS may be just a tad past with the boundary passage. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Long term continues to highlight an above-average temperature trend, as has been suggested by long-range guidance. Despite the passage of the front Tuesday night, mid-level ridging will quickly build back over the eastern CONUS as the trough amplifies over the southwestern US and then ejects into the central Plains by the end of period. Model guidance appears to be handling the overall trends in the upper level pattern well, with only minor differences in timing and evolution of the system for the end of the week. Thus, will stay close to a blend of solutions with tweaks made to temperatures as the Superblend tends to dampen anomalous values in the extended. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... VFR conditions prevailing with southwest winds gusting to 20 Kts diminishing this evening. Clouds will increase this evening with only a few sprinkles expected at KMGW as a weak mid level circulation shears out across the Mid-Atlantic states. Weak cool advection looks to produce a period of MVFR stratus at most ports late night into early Sunday. .OUTLOOK... The next chance for widespread restrictions will be with a Tuesday cold front. && .CLIMATE...
-- Changed Discussion --
Record High Temperatures February 18: TODAY PREVIOUS RECORD Pittsburgh, PA 68 66 (2011) Zanesville, OH 69 64 (2011/1994) DuBois, PA 64 57 (1981) Wheeling, WV 68 60 (2008) New Philadelphia,OH 69 62 (1961)
-- End Changed Discussion --
&& .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.