Scientific Forecaster Discussion
fxus61 kpbz 251324
Area forecast discussion
National Weather Service Pittsburgh PA
924 am EDT sun Aug 25 2019
dry, pleasant weather is expected through Monday. Rain chances
return Monday night with an approaching cold front.
Near term /through tonight/...
minimal changes needed with mid morning update.
Upper ridging over the region will maintain dry and quiet conditions
today and tonight. Daytime Max temperatures will top out slightly
below normal for this time of year. Overnight lows will also be
slightly below normal with ideal conditions for radiational cooling.
Short term /Monday through Tuesday/...
winds will slowly veer on Monday as ridging continues to transition
east...becoming southwesterly by evening and result in increased warm
air and moisture advection. Stratiform rain chances will increase
with increasing synoptic lift and the passage of a warm front late
Monday through early Tuesday morning. Despite increased southerly
flow behind the warm front, highs on Tuesday are expected to still be
slightly below normal with considerable cloudiness and progged
temperatures in lower levels supportive of temperatures remaining in
the mid to upper 70s for the vast majority of the forecast area.
Long term /Tuesday night through Saturday/...
a cold front will cross the region earlier on Wednesday with
precipitation ending from west to east during the afternoon as drier
air quickly invades behind the front. Dry weather will return Thursday
and Friday with high pressure back in control.
Aviation /14z Sunday through Thursday/...
VFR conditions will prevail through the taf period for most sites.
Light/variable wind this morning will become easterly by late
restriction potential will escalate through early week with the
approach and passage of a cold front.