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fxus61 kphi 171428 
afdphi

Area forecast discussion
National Weather Service Mount Holly New Jersey
1028 am EDT Tue Oct 17 2017

Synopsis...
high pressure over the Midwest will build east and will move
off the mid-Atlantic coast later this week. A cold front
gradually approaches early next week.

&&

Near term /until 6 PM this evening/...

High pressure builds across the area today, providing quiet
weather across the region as mostly sunny skies prevail. Winds
will shift from the north this morning, to west through the day
as the center of the high shifts slightly southward. Highs will
be close to or slightly below normal across the area.

&&

Short term /6 PM this evening through 6 am Wednesday/...
high pressure remains in control of the weather tonight across
the region. Skies remain mostly clear and winds will become
light and variable or calm for most places. This will allow for
temperatures to cool once again to near or slightly below normal
for most places. We maintain the frost advisory for portions of
The Pine Barrens of southern New Jersey as temperatures there
may cool enough for some areas of frost to develop. Portions of
northern New Jersey and northeast Pennsylvania may stay just
warm enough for only patchy frost to develop in the isolated
coolest spots.

&&

Long term /Wednesday through Monday/...
a prolonged period of dry weather is on tap for long term as
high pressure builds east and remains in control of the weather.
Temperatures will gradually warm up, and will end up being
above normal for the end of the week and into the weekend.

High pressure will be centered south of the Delmarva Peninsula
on Wednesday. Return flow sets up behind the high, allowing high
temperatures to warm up by about 10 degrees compared to
Tuesday, and highs will be in the upper 60s to low 70s.

The high moves offshore on Thursday, and then another area of
high pressure will become entrenched over the mid-Atlantic and
southeast U.S. For the weekend. Highs will gradually rise into
the low to mid 70s, and overnight lows will be in the 40s to low
50s.

High pressure moves offshore on Monday. A cold front approaches
late in the day.

&&

Aviation /15z Tuesday through Saturday/...
the following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

VFR conditions will prevail today and tonight. Winds will shift
from northerly this morning, to west-southwest this afternoon
into this evening, before becoming light and variable or calm
this evening and overnight.

Outlook...

Wednesday through Saturday...VFR.

&&

Marine...
we extended the Small Craft Advisory through 4 PM for the
southern New Jersey coastal waters and the Delaware waters. The Small
Craft Advisory flag was dropped elsewhere. As high pressure
continues to build across the area, winds will lighten and seas
will subside and the remaining advisory will be able to be come
down later this afternoon. Conditions through Wednesday morning
will remain below advisory levels.

Outlook...

Wednesday through Saturday...sub-sca conditions expected on the
waters through this time.

&&

Phi watches/warnings/advisories...
PA...none.
New Jersey...frost advisory from 1 am to 9 am EDT Wednesday for njz021-022-
027.
Delaware...none.
Maryland...none.
Marine...Small Craft Advisory until 4 PM EDT this afternoon for
anz453>455.

&&

$$
Synopsis...mps
near term...Robertson/po

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