Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Pittsburgh PA
419 am EDT Sat Sep 5 2015
warm and humid conditions will continue until a cold front
approaches in the middle of next week.
Near term /until 6 PM this evening/...
another warm day with less chance of convection given increased
subsidence under strengthening high pressure. Expect highs from 5
to 10 degrees above the averages once again.
Short term /6 PM this evening through Monday/...
middle/upper ridge is projected to continue amplifying on
Sunday...thus suppressing convection potential for the start of
the new week. No real change is indicated to the warm airmass.
Long term /Monday night through Friday/...
increasing precipitation chances and relief from the warmth are projected
to come with a middle week cold front.
Aviation /08z Saturday through Wednesday/...
fog will likely develop overnight with plenty of low level moisture
and little mixing. IFR fog will be possible in locations that
received rainfall this evening.
Outlook...Saturday night through Wednesday...
the chance for general restrictions will increase with the approach
of a cold front on Wednesday.