Area Forecast Discussion
Issued by NWS State College, PA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FXUS61 KCTP 282316
AFDCTP

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
716 PM EDT TUE JUL 28 2015

.SYNOPSIS...
SUMMERTIME HEAT AND HUMIDITY WILL BE THE MAIN WEATHER STORY IN
CENTRAL PENNSYLVANIA INTO THURSDAY. A WELL-DEFINED COLD FRONT
WILL MOVE ACROSS THE APPALACHIANS AND MID-ATLANTIC STATES ON
THURSDAY. SEASONABLY WARM AND MAINLY DRY WEATHER WILL CLOSE OUT
JULY 2015 AND CONTINUE INTO THE FIRST WEEKEND IN AUGUST.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
DIURNAL CU FADING FAST AS EVENING ARRIVES. SKY COVER OVERNIGHT
SHOULD BE NIL WITH GOOD RADIATIONAL COOLING AND EVENTUAL VALLEY
FOG - MAINLY IN THE NORTH. THE DEWPOINTS MAY BE LOW ENOUGH TO
PRECLUDE THE WIDESPREAD FOG ACROSS THE SOUTH LIKE WE SAW TUES
MORNING.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
HIGH PRESSURE WILL BE DIRECTLY OVERHEAD BUT DEWPOINTS DO NOT DRY
OUT ALL THAT MUCH FROM TUES. TEMPS WILL BE THE STORY FOR WED...AS
MAXES WILL LIKELY EXCEED 90F IN THE VALLEYS OF THE EAST AND FAR
SOUTH. HOWEVER...THE ELEVATIONS AND MORE-SHALLOW MIXING THERE
SHOULD KEEP THE MAXES BARELY BELOW 90F OVER THE REST OF THE AREA.
THE HIGHEST ELEVS IN THE LAURELS ARE THE PLACE TO GO IN PA TO BEST
AVOID THE HEAT. WITH THE DEWPOINTS HOLDING IN THE 60S AND U50S WE
SHOULD KEEP FROM GOING INTO HEAT ADVY VALUES.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A COLD FRONT WILL APPROACH THE REGION WEDNESDAY NIGHT BEFORE
CROSSING THE COMMONWEALTH THROUGH THE DAY ON THURSDAY. SPC HAS
MUCH OF CENTRAL AND EASTERN PA IN A MARGINAL SEVERE RISK ON
THURSDAY WITH THE FRONTAL PASSAGE.

HEADING INTO THIS WEEKEND...UPPER-LEVEL TROUGHING OVER EASTERN
CANADA AND THE NORTHEASTERN UNITED STATES WILL PRODUCE
NORTHWESTERLY FLOW ALOFT. THE MODELS INDICATE A WEAK COLD FRONT
MAY GENERATE A FEW SHRA/TSRA ACROSS MAINLY N/W PA ON SATURDAY.

OTHERWISE...MAINLY DRY WEATHER WITH LOWER HUMIDITY IS EXPECTED
FROM FRI-SUN. TEMPERATURES WILL REMAIN NEAR TO SLIGHTLY ABOVE
CLIMATE NORMALS HEADING INTO THE FIRST WEEK OF AUGUST.

&&

.AVIATION /23Z TUESDAY THROUGH SUNDAY/...

WIDESPREAD VFR WILL CONTINUE INTO THE OVERNIGHT BEFORE FOG BEGINS
TO DEVELOP AND BRING ABOUT LOWERING FLIGHT CONDITIONS. EXPECT
MOST LOCATIONS TO SEE VIZ DROP DOWN INTO THE 1-3 MILE RANGE DURING
THE HOURS SURROUNDING SUNRISE.

FOG AND LOW CLOUDS WILL BURN OFF RAPIDLY EARLY WEDNESDAY LEADING
TO ANOTHER VFR/SUNNY DAY UNDER HIGH PRESSURE. CLOUDS WILL START TO
ADVANCE WED NIGHT AHEAD OF A COLD FRONT APPROACHING FROM THE WEST.
SHOWERS IN ADVANCE OF THE FRONT MAY NUDGE INTO BFD BEFORE SUNRISE
THURSDAY.

THE FRONT SHOULD PASS EARLY THURSDAY BRINGING DRIER CONDITIONS AND
A DECREASE IN THE COVERAGE OF SHOWERS AND THUNDERSTORMS.


OUTLOOK...

FRI...MAINLY VFR.
SAT...MAINLY VFR...PM TSRA POSS W.
SUN...MAINLY VFR.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$
SYNOPSIS...DANGELO
NEAR TERM...DANGELO/DEVOIR
SHORT TERM...DANGELO
LONG TERM...EVANEGO
AVIATION...LA CORTE



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.