627  
FXUS61 KCTP 230154  
AFDCTP  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE STATE COLLEGE PA  
954 PM EDT TUE SEP 22 2026  
   
WHAT HAS CHANGED  
 
* NO SIG CHANGES.  
 
 
   
KEY MESSAGES  
 
1) LINGERING SHOWERS ACROSS THE SOUTHERN TIER GRADUALLY TAPER  
OFF TONIGHT INTO TOMORROW, GIVING WAY TO DRY WEATHER TO END THE  
WEEK. COASTAL STORM EFFECTS STILL LOOK LIKE THEY WILL STAY  
MAINLY EAST OF PA.  
 
 
   
DISCUSSION  
 
KEY MESSAGE 1: LINGERING SHOWERS ACROSS THE SOUTHERN TIER  
GRADUALLY TAPER OFF TONIGHT INTO TOMORROW, GIVING WAY TO DRY  
WEATHER TO END THE WEEK. COASTAL STORM EFFECTS STILL LOOK LIKE  
THEY WILL STAY MAINLY EAST OF PA.  
 
HIGH PRESSURE AND DRIER AIR MOVING DOWN FROM THE NORTH WILL  
START TO DOMINATE THE FORECAST FOR THE NEXT 7 DAYS. LINGERING  
SHRA OVER THE SOUTHERN TIER TONIGHT WILL POSE NO HEAVY RAIN  
THREAT. ANY -RA LEFT OVER IN THE MORNING COULD BE ENTIRELY  
SOUTH OF THE CWA. WE'LL START TO SEE HIGH CLOUDS FROM THE  
COASTAL LOW ON FRIDAY OR EVEN BEFORE THEN. WE ARE LEAVING IN THE  
NBM 20 POPS FOR THE EAST FOR THE WEEKEND FOR PLACES E OF THE  
SUSQ R WITHOUT ANY CONFIDENCE TO TOTALLY DROP MENTIONS OF IT.  
 
 
   
AVIATION /01Z WEDNESDAY THROUGH SUNDAY/  
 
ISOLATED -SHRA WILL CONTINUE ACROSS THE SOUTHERN TIER TONIGHT  
INTO EARLY WEDNESDAY MORNING. ALL TAF SITES ALREADY VFR AS OF  
0130 UTC WED. THE LAMP DOES HAVE A FEW TO SEVERAL HOURS OF MVFR  
CIGS/VSBY AT JST/AOO/UNV LATER TONIGHT INTO THE PREDAWN HOURS  
WED, BUT OBS SEEM TO BE TRENDING IN A DRIER DIRECTION, SO  
PROBABILITY FOR MVFR CONDS IS ONLY IN THE 30-50 PCT RANGE.  
 
VFR CONDS WILL CONTINUE ON WED WITH CLEAR SKIES OR VERY FEW  
HIGH CLOUDS PREVAILING ACROSS ALL OF CENTRAL PENNSYLVANIA BY  
18Z. WINDS FROM THE E TO NE WILL GUST UP TO 25 KTS, HIGHEST IN  
THE LOWER SUSQ VALLEY.  
 
OUTLOOK...  
 
THU-SUN...VFR FAVORED AS A DEVELOPING COASTAL LOW LOOKS TO  
BRING SUBSIDENCE OVERHEAD, THOUGH -RA AND LOWER CLOUD CEILINGS  
ASSOCIATED WITH THIS SYSTEM MAY REACH OUR EASTERN TERMINALS THIS  
WEEKEND (20 PCT CHC).  
 
 
   
CLIMATE  
 
ASTRONOMICAL FALL BEGAN TODAY, SEPTEMBER 22, 2026, AT 8:04PM  
EDT. THIS MARKS THE TIME OF THE AUTUMNAL EQUINOX WHEN THE SUN IS  
DIRECTLY ABOVE EARTH'S EQUATOR.  
 
 
   
CTP WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
WHAT HAS CHANGED...COLBERT  
KEY MESSAGES...DANGELO/COLBERT  
DISCUSSION...DANGELO/COLBERT  
AVIATION...COLBERT/BOWEN  
CLIMATE...BANGHOFF  
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