000 
FPUS03 KCTP 090029
AFDCTP
AREA FORECAST DISCUSSION 
NATIONAL WEATHER SERVICE STATE COLLEGE PA
730 PM EST SUN JAN 8 1995

RAMSDIS SATL IR LOOP CONTS TO SHOW BKN-OVC SC ACRS WRN AND NRN PA
IN THE TYPICAL UPSLOPE AREAS. IN LWR AND MID SUS VLLY SKIES WERE
MAINLY PC. IR LOOP ALSO SHOWS CLDS ASSCTD WITH A DECENT MID-LVL
S/W MOVG ACRS OH AND TENN VLLYS. RADAR INDCTD SOME LIGHT PRECIP
OVER MO AND IL WITH THIS S/W. GRIDDED DATA REVEALS A DECENT 850
MB JET FEEDING MOISTURE INTO THIS S/W ON SWRLY WINDS WITH STRONG
Q-VECTOR CONV OCCURRING AHEAD OF S/W TROF AXIS SUPPORTING THE
LIGHT PRECIP. GRIDDED DATA FOR ALL THREE MODELS SHOWS THAT THIS
LOW-LVL JET FEATURE WILL WEAKEN AND MOV SEWRD CUTTING OFF LOW-LVL
MOISTURE TO THIS S/W. S/W IS PROGGED TO WEAKEN AND SHEAR OUT SOME
AS IT MOVE S OF PA BY LATE TONIGHT/MON MORN. ALL WE WILL SEE FROM
THIS FEATURE IS PLENTY OF MID-HI CLDNESS OVERSPREADING ST
OVERNIGHT. A CD FRNT ASSCTD WITH ANOTHER S/W (IN NRN BRANCH) WILL
MOVE SE TONIGHT APPRCHG NW PA BY 12Z. MODELS DO INDICATE THAT
1000 MB RH FIELDS ACTUALLY INCREASE SOMEWHAT TONIGHT ACRS ST IN
WRLY FLO AHEAD OF SFC FRNT. GRIDDED DATA ALSO INDICATES SOME WK
Q-VECTOR CONV ACR ST BY 12Z FROM BOTH NRN AND SRN SHRT WV/S. WITH
WK LIFT AND PLENTY OF LOW-LVL MOISTURE COMBINED WITH UPSLOPE FROM
PERSISTANT WRLY SFC FLO... SEE PLENTY OF CLDS ALL NIGHT WRN AND
NRN CTP ZONES WITH FLURRIES (SN SHOWERS NW) OVERNIGHT. SERN CTP
ZONES PROBABLY WON/T SEE TOO MUCH LOW CLDS BUT MID-HI CLDNESS
FROM SRN S/W WILL OVERSPREAD THESE AREAS TOO. WILL HV MO CLDY NRN
AND WRN CTP ZONES WITH SW-/SW--. IN SERN CTP ZONES WILL HV BECMG
MO CLDY.  

FOR TEMPS... MAY BUMP TEMPS DOWN A LITTLE IN SOME WRN CTP ZONES
TO REFLECT CURRENT TRENDS. ERN CTP ZONES FROM THIS AFTRN LOOK
GOOD FOR TONIGHT/S TEMPS.  

WRK ZONES OUT SOON.

LAKE SNOW OUTLOOK 

MON MIDNIGHT TO  MON 7 AM...Y...MINOR ACCUMS NW PART OF STATE     
                                LATE 
MON 7 AM  TO  MON 7 PM...Y...DYING ACTVTY NW UNDER AC LO LVL FLOW
TUE 7 PM  TO  TUE 7 AM...N

NICOSIA