Area Forecast Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | 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
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KPBZ 031727 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 127 PM EDT Fri Apr 3 2020 .SYNOPSIS... Dry weather is be expected through tomorrow under high pressure. Shower chances return Sunday with the passage of a cold front. && .NEAR TERM /THROUGH TONIGHT/... Clouds, associated with a coastal low in southern New England, will increase this afternoon for areas east of I-79. Generally sunny skies are expected west of PIT under eroding high pressure. Gusty winds will occur this afternoon and last until sunset due to a tight pressure gradient associated with the coastal low. Based off of model soundings, the threshold to receive sufficient boundary layer is near 50 degrees; 20-25mph gusts will be observed. Tonight will be quiet under high pressure, temperatures will stay continue to stay near the climatological average. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... Mostly clear to partly cloudy skies and dry weather are expected under weak high pressure Saturday. The ridge is expected to flatten as it moves east Saturday night and Sunday, as a weakening shortwave trough and its associated cold front approach and cross the Great Lakes. By early Sunday morning scattered showers along and ahead of FROPA will occur. With the lack of upper-level support and deep layer moisture, isolated areas will only receive at most a quarter of an inch of rain. Clouds are expected to linger along the weak frontal boundary, south of PIT, Sunday afternoon as zonal flow prevails. Otherwise, dry weather is expected under building high pressure over the Great Lakes. Temperatures should average near or a few degrees above seasonable levels. && .LONG TERM /MONDAY THROUGH THURSDAY/... Generally dry weather is expected Monday as the high moves east across the region. Periodic shower chances return early Tuesday morning through Thursday as a series of shortwaves in fast moving W-NW flow aloft cross the region. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... VFR conditions will continue through the afternoon along the eastern side of an upper ridge. Wind gusts of 20 to 30 knots will also persist thanks to steep low level lapse rates and ample mixing. Wind will diminish this evening, but a trough axis rotating around a low pressure system off the eastern CONUS will help increase clouds this evening. There is moderate confidence that terminals north and east of PIT will eventually see MVFR ceilings tonight. Elsewhere, clouds may develop overnight, but VFR conditions should be maintained. Clouds will begin to decrease towards the end of the TAF period as the offshore low starts to pull away. .Outlook... The next chance for general restrictions is not expected until early next 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.