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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.

&&

$$