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Area Forecast Discussion (AFD)

Issued by State College, PA (CTP)

                            
000
FXUS61 KCTP 190555
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
155 AM EDT Tue Mar 19 2019

.SYNOPSIS...
High pressure will build in overnight and last into Wednesday. 
Some light snow or rain is possible Wednesday Night and 
Thursday. A slight cool down is expected for week's end.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
Earlier extensive stratocu field has dissolved into areas of bkn
altocu this evening with the vast percentage of the CWA now 
under clear skies as an area of high pressure gradually builds 
in from the Ohio River Valley. 

Winds will be light from the west to northwest overnight with
min temps ranging from the upper teens across the Northern Mtns
to the upper 20s in the larger metro areas in the South.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM WEDNESDAY/...
Surface high pressure building eastward from the Ohio Valley
will keep things fair and cool on Tuesday with a nice amount of 
sunshine expected. A bit more cloud cover will be found over the
NE, but a few cu is expected over much of the area. Highs will 
moderate slightly in the W/N with maxes reaching the mid to 
upper 30s north, but be nearly the same as Monday with mid 40s 
S/E.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
Surface high pressure will move across PA Tuesday night and  
off the coast Wednesday. Southerly flow ahead of next system 
along with March sun will warm temps to near normal. Next system
will move in Wednesday night bringing a good chance for rain
along with some snow mainly across the north and on the highest
ridges. 

Thursday a potent shortwave drops across the eastern Great
Lakes, bringing a renewed chance for scattered light showers. 
Some model guidance hinting at a coastal low developing off the 
Mid-Atlantic and New England coasts as it lifts north late 
Thursday into Friday, with impacts to central PA likely
contained to a period of breezy conditions. 

A secondary cold front will cross the area Friday which will 
bring a reinforcing shot of drier and colder air. The high
pressure builds for the weekend with warmer days and cool
nights. Temps will be near normal Friday and Saturday with 
about a 10 degree jump on Sunday climbing into the 60s many 
areas through central PA and across the south. Warmer trend 
looks to last into the 8-14 day period.

Spring officially begins at 5:58PM on Wednesday 3/20.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...

High pressure building into the region will bring widespread 
VFR conditions and light winds Tuesday.

.Outlook...

Wed...Chance of light snow NW Mtns toward midnight.

Thu...AM light rain/snow/low cigs possible N and W Mtns. 

Fri...Becoming windy. AM low cigs/snow showers possible N and W
Mtns.

Sat...Gusty NW wind possible.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$
SYNOPSIS...Dangelo/Lambert
NEAR TERM...Lambert
SHORT TERM...Dangelo
LONG TERM...RXR
AVIATION...Fitzgerald/Ceru