FXUS61 KPBZ 180613
Area Forecast Discussion
National Weather Service Pittsburgh PA
113 AM EST Mon Feb 18 2019
Some light snow showers will linger today in the wake of a cold
front. A dry and seasonably cold Tuesday is expected before
mixed precipitation and rain return for Wednesday.
.NEAR TERM /UNTIL 6 AM THIS MORNING/...
The post-midnight update featured the expiration of the Winter
Weather Advisory as the low is completing passage colder, and
drier air into the immediate sfc layer. This should result in
some lingering light snow showers.
.SHORT TERM /6 AM THIS MORNING THROUGH WEDNESDAY/...
Building high pressure will suppress snow showers through the
afternoon, and snuff them completely for tonight and Tuesday.
Expect seasonable cold under zonal flow aloft.
A wintry mix, including possible freezing rain is again anticipated
for Wednesday as a warm front surges across the region in
extension fm Midwest low pres. Categorical POPs were maintained
as was an HWO mention for that scenario.
.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
Development of a fairly deep Wrn CONUS trough is still projected
this week with persistent SW flow over the Upr OH Region.
Expect temperature at, or above the seasonal averages and
continued shortwave-dependent precip chcs.
.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Conditions will slowly improve after a predawn cdfnt this mrng.
IFR is expected to transition to MVFR after daybreak although
some shsn will linger in the cold NW boundary layer flow, which
should gust 20 to 25 kt for much of the day. Expect VFR later
in the day/by eve with diminished wind. Those condition can be
confidently expected through Tuesday eve.
Widespread restrictions with a regional wintry mix can be expected
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