Area Forecast Discussion
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517
FXUS61 KPBZ 192309
AFDPBZ

Area Forecast Discussion
National Weather Service Pittsburgh PA
709 PM EDT Sat Aug 19 2017

.SYNOPSIS...
Thunderstorms will accompany the passage of a cold front this
evening.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
Quick update to modify PoPs based on radar trends, and to drop
the remainder of the severe thunderstorm watch. Some convection
will remain possible mainly south of the Mason-Dixon line for a
couple more hours, until daytime heating decreases.

Dry advection and subsidence in the wake of the front will
support a quiet and comfortable night. Expect overnight lows
near/a couple degrees under the seasonal averages.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/...
Building high pressure in the wake of the aforementioned system
will result in a dry and seasonable Sunday with slightly lower
dewpoints/humidity.

Warm, moist advection with flat ridging in advance of a midwestern
shortwave as per the latest model solutions indicate increased
humidity with a rapid temperature moderation above the averages
for Monday.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...
The aforementioned midwest trough/associated front are likely to
provide the next precip chance by Tuesday. Eastern CONUS troughing
is then forecast to support temperatures a few degrees under
the averages for the remainder of the week.

&&

.AVIATION /23Z SATURDAY THROUGH THURSDAY/...
Thunderstorms will end early this evening as a cold front
completes its passage. Will handle with VCTS early on near MGW.

VFR conditions will follow in the wake of the thunderstorms, but
given the rainfall today, areas of pre-dawn fog are expected to
develop. IFR visibilities are expected for at least a short
period at most terminals. Fog will lift by mid-morning Sunday,
with VFR conditions returning thereafter.

.Outlook...
Widespread restriction potential returns with a late Tue/early
Wed cold front.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...None.
OH...None.
PA...None.
WV...None.

&&

$$



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