Area Forecast Discussion
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FXUS61 KPBZ 261726
AFDPBZ

Area Forecast Discussion
National Weather Service Pittsburgh PA
126 PM EDT Sat May 26 2018

.SYNOPSIS...
Warm and humid with the chance for showers and storms through
the weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
Showers and thunderstorms should remain fairly isolated in
coverage the remainder of the afternoon as ridging continues to
exit east and warm air aloft keeps convection largely capped.

Coverage will increase this evening as a shortwave begins to
cross and trigger convection. Instability will still be
marginal so any storms that develop should remain sub-severe.
Conditions look favorable for heavy downpours with any stronger
storms that develop...so the main concern would be if any
locations see multiple rounds of convection overnight.

Overnight lows will again be well above normal.

&&

.SHORT TERM /SUNDAY THROUGH TUESDAY/... Showers and storm
coverage will diminish on Sunday in the wake of the
shortwave...with temperatures/dewpoints remaining in the
80s/60s.

Monday and Tuesday will be capped as broad upper level ridging
builds over the region. Temperatures both days will remain well
above normal.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Hot and humid
conditions expected through the extended with daily chances for
showers and storms as low pressure currently over the gulf
is progged to impact the region during the second half of the
week.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
VFR conditions are expected through tonight, despite showers and
thunderstorms increasing with an approaching shortwave.
Tonight, behind the departing showers, the injection of moisture
will bring patchy vis restrictions with some fog development.
Any broken cloud cover that remains could drop to low MVFR near
sunrise Sunday. Improvement back to VFR is then expected through
midday Sunday with some scattered shower activity.

Surface flow will be light and generally out of the south-
southwest.

OUTLOOK...
General VFR can be expected into midweek outside of isolated to
scattered convection.

&&

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

&&

$$



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