Monday, October 16, 2017, 8:18 PM EDT
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Area Forecast Discussion
||Wed, Dec 31, 7:00pm EST
FXUS61 KCTP 170008
Area Forecast Discussion
National Weather Service State College PA
808 PM EDT Mon Oct 16 2017
After a clear and frosty night tonight, abundant sunshine and a
lighter downsloping southwesterly wind will help temperatures
to rebound to near normal on Tuesday.
It will be dry with temperatures gradually rising to well above
normal values later this week, and lasting right through this
upcoming weekend as a large area of high pressure builds in.
.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
Clouds and wind will continue to diminish this evening, leading
to a clear, nearly calm and frosty night area-wide as high
pressure builds in from the west at the surface and aloft.
Collaborated with surrounding WFOs to post a Frost Advisory for
late tonight through the mid morning hours Tuesday. Freezing
temps are not likely in locations that are still in the growing
season. Perhaps SEG/THV and similar micro-climates could touch
32F, but most will not. For now, just mentioning areas of frost
with lows in the 33-37F range.
.SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/...
A large are of high pressure will be stretched from the Mid Miss
Valley to the Delmarva Coast for Tuesday. This weather feature
will help to transport below normal PWAT air into the
Commonwealth from the Ohio Valley.
Tuesday will feature almost cloud free skies with the exception
of perhaps a few pancake cu dotted about during the late morning
and afternoon hours.
Temps will bounce back quickly during the late morning and
afternoon...maxing out in the normal range of 55-60F.
.LONG TERM /TUESDAY NIGHT THROUGH MONDAY/...
For the mid to late week period, heights gradually rise with a
multi-model consensus indicating a string of dry and
increasingly warm days and mainly clear/cool nights. We could
have a period true Indian Summer weather with high temps in the
in the low to mid 70s from mid week into next weekend. The next
chance for precipitation should be not until late next Monday.
.AVIATION /00Z TUESDAY THROUGH SATURDAY/...
High pressure building into the region will bring clear skies
and light wind overnight. Some patchy valley fog is expected
to form over western Pa toward dawn, as SREF and downscaled NAM
suggest. However, odds are low of vis reductions at any of the
central Pa airfields.
Any patchy fog should burn off by mid morning, then there is a
near certainty of widespread VFR conditions the rest of the day
with high pressure over the state.
Wed-Thu...No sig wx expected.
Fri-Sat...Patchy AM valley fog possible.
Frost Advisory from 2 AM to 9 AM EDT Tuesday for PAZ026>028-
NEAR TERM...La Corte/Lambert