Area Forecast Discussion
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684 FXUS61 KPBZ 282150 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 550 PM EDT Tue Mar 28 2017 .SYNOPSIS... After showers depart to the east this evening, high pressure will bring dry weather for Wednesday before another low pressure system brings rain into the region beginning late Thursday. && .NEAR TERM /THROUGH WEDNESDAY/...
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Updated to bring an end to precipitation a little bit more quickly based on radar trends. Expect virtually all of the showers to be east of the CWA by 00Z. Also upped the cloud cover a bit overnight into Wednesday morning, as moisture will become trapped underneath a strengthening subsidence inversion overnight, promoting continued cloud cover until the inversion can mix out with daytime heating tomorrow. Temperatures look good for now, with slightly above normal overnight lows and seasonable Wednesday max values.
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&& .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/... Computer models are still struggling somewhat with the arrival time for precipitation on Thursday. Attempted to take a middle of the road approach, keeping conditions dry Thursday morning, introducing the chance of showers Thursday afternoon, and bringing in widespread showers Thursday night. Increased pops to categorical Friday with all models in good agreement showing rain across much of the eastern United States. After seasonal temperatures Wednesday night and Thursday, both highs/lows should be about five degrees warmer over the next 24 hours. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... As low pressure moves offshore the East Coast Friday night, showers should come to an end Saturday morning. High pressure will bring quiet weather through the second half of the weekend before another system brings the chance for rain Monday into Tuesday. Seasonal temperatures are expected for the period. && .AVIATION /22Z TUESDAY THROUGH SUNDAY/... MVFR to IFR conditions will continue through much of the period across the terminals. The low pressure has helped lower ceilings to IFR with drizzle over some ports and MVFR visibility. Expect the showers to taper off later in the day while visibility improves as the low pressure exits east. Low ceilings will continue to impact the terminals through tonight as low level moisture resides over the area. Conditions are expected to improve by Wednesday morning as northerly flow brings drier air through the region. Outlook... Restrictions are likely again by late week as another broad low affects the Upper Ohio Valley. && .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.