Alert archive / Pennsylvania / Winter Storm Warnings in 2005

Winter Storm Warning 2, NWS State College, PA

December 14, 200531 counties in Pennsylvania

NWS State College, PA issued this winter storm warning at Dec 14, 2005, 3:14 PM EST for 31 counties in Pennsylvania. It took effect at Dec 14, 2005, 5:30 PM EST. It was in force for 38 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 14, 2005, 3:14 PM EST (20:14 UTC)
In effect from
Dec 14, 2005, 5:30 PM EST
Expired
Dec 16, 2005, 7:00 AM EST
In force
38 hr
Issued by
NWS State College, PA
All 31 counties

Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lebanon County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Warren County, PA

The radar

The State College radar (KCCX), 36 km from the middle of the area, began a volume at 20:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.2 hours before the alert went out and 196 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2005-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2005-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1580 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS41 KCTP 142014
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
314 PM EST WED DEC 14 2005

...A WINTER STORM WARNING HAS BEEN ISSUED FOR LATE THURSDAY
MORNING THROUGH FRIDAY MORNING FOR MUCH OF THE CENTRAL AND WESTERN
MOUNTAINS OF PENNSYLVANIA...

...A WINTER STORM WATCH REMAINS IN EFFECT FOR LATE THURSDAY
MORNING THROUGH FRIDAY MORNING FOR MOST OF THE SUSQUEHANNA VALLEY
AND WARREN COUNTY IN NORTHWESTERN PENNSYLVANIA...

.ANOTHER WINTER STORM WILL AFFECT THE REGION THURSDAY INTO
FRIDAY...BRINGING A POTPOURRI OF PRECIPITATION TYPES TO
PENNSYLVANIA. ACROSS THE WEST AND NORTH...SIGNIFICANT SNOW
ACCUMULATION OF 6 INCHES OR MORE IS LIKELY...WITH A FEW HOUR PERIOD
OF SLEET AND FREEZING RAIN POSSIBLE LATE THURSDAY NIGHT. 
ACROSS SOUTH CENTRAL PENNSYLVANIA...AND THROUGHOUT THE CENTRAL AND
LOWER SUSQUEHANNA VALLEY...MORE SLEET AND FREEZING RAIN WILL MIX
WITH THE SNOW...CUTTING DOWN ON SNOW ACCUMULATIONS BUT INCREASING
THE POTENTIAL FOR SIGNIFICANT ICE ACCUMULATIONS.

PAZ005-006-010>012-017>019-024>027-033>035-037-041-045-150415-
/O.UPG.KCTP.WS.A.0003.051215T1200Z-051216T1700Z/
/O.NEW.KCTP.WS.W.0002.051215T1200Z-051216T1700Z/
MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
SOMERSET-BEDFORD-FULTON-TIOGA-NORTHERN LYCOMING-SOUTHERN CLINTON-
314 PM EST WED DEC 14 2005

...WINTER STORM WARNING IN EFFECT FROM 7 AM THURSDAY TO 12 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 7 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION BEGINNING THURSDAY
MORNING AND LASTING THROUGH FRIDAY MORNING. PRECIPITATION WILL
START AS SNOW IN MOST PLACES THURSDAY MORNING...WITH THE EXCEPTION
OF THE NORTHERN COUNTIES WHERE THE ONSET OF SNOW MAY HOLD OFF
UNTIL THE EARLY AFTERNOON. ACCUMULATIONS BY DUSK THURSDAY WILL
RANGE FROM 1 TO 4 INCHES ACROSS FAR NORTHERN PENNSYLVANIA...TO
BETWEEN 2 AND 5 INCHES ACROSS THE SOUTHWEST MOUNTAINS.

BY THURSDAY NIGHT...A THIN LAYER OF JUST ABOVE FREEZING AIR 
MOVING IN ALOFT FROM THE SOUTH SHOULD CAUSE THE SNOW TO MIX WITH
SLEET AND FREEZING RAIN FOR SEVERAL HOURS OVER THE LAUREL
HIGHLANDS AND SOUTH CENTRAL MOUNTAINS. SOME AREAS ALONG THE
MARYLAND BORDER MAY CHANGE TO ALL FREEZING RAIN...INCREASING THE
THREAT FOR A SIGNIFICANT ICE STORM.

BY NOON FRIDAY TOTAL SNOW ACCUMULATIONS OF 6 TO 9 INCHES ARE
LIKELY NEAR AND TO THE NORTHWEST OF A LINE FROM JOHNSTOWN...TO
STATE COLLEGE AND MANSFIELD. SEVERAL INCHES OF SNOW...TOPPED BY A
LAYER OF SLEET AND FREEZING RAIN WILL OCCUR FURTHER SOUTHEAST.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ004-028-036-042-046-049>053-056>059-063>066-150415-
/O.CON.KCTP.WS.A.0003.051215T1200Z-051216T1700Z/
WARREN-JUNIATA-FRANKLIN-SULLIVAN-SOUTHERN LYCOMING-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
314 PM EST WED DEC 14 2005

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH FRIDAY MORNING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH FRIDAY MORNING. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION BEGINNING THURSDAY
MORNING AND LASTING THROUGH FRIDAY MORNING. PRECIPITATION WILL
START AS SNOW EVERYWHERE THURSDAY MORNING AND CONTINUE THROUGHOUT
THE DAY. ACCUMULATIONS DURING THE DAYLIGHT HOURS WILL RANGE FROM
1 TO 3 INCHES OVER MUCH OF THE SUSQUEHANNA VALLEY...WITH UP TO 4
INCHES POSSIBLE ACROSS SOUTH CENTRAL PENNSYLVANIA AND WARREN
COUNTY IN THE FAR NORTHWEST.

BY THURSDAY NIGHT...WARMER AIR MOVING IN ALOFT FROM THE SOUTH
WILL CAUSE THE SNOW TO MIX WITH SLEET AND FREEZING RAIN OVER THE
SOUTH CENTRAL MOUNTAINS AND SUSQUEHANNA RIVER VALLEY...AND SOME
AREAS MAY CHANGE TO ALL FREEZING RAIN LATE INCREASING THE THREAT
FOR A SIGNIFICANT ICE STORM WITH POTENTIAL ICE ACCUMULATIONS UP TO
ONE HALF INCH THICK.

A CHANGE BACK TO SNOW MAY OCCUR FOR SEVERAL HOURS FRIDAY MORNING
BEFORE THE SNOW ENDS DURING THE MID DAY. A FEW MORE INCHES OF SNOW
ARE POSSIBLE FRIDAY MORNING.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW OR ICE ACCUMULATION THAT MAY IMPACT TRAVEL. THE EXACT IMPACT OF
THIS STORM SYSTEM IS UNCERTAIN. HOWEVER...IF HEAVY SNOW OR ICE
BECOMES IMMINENT...A WINTER STORM WARNING WILL BE ISSUED.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

$$

LAMBERT
6 follow-up statements
000 
WWUS41 KCTP 142230
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
530 PM EST WED DEC 14 2005

.A WINTER STORM WILL AFFECT MUCH OF CENTRAL PENNSYLVANIA THURSDAY
INTO FRIDAY MORNING.

PAZ004-042-150630-
/O.UPG.KCTP.WS.A.0003.051215T1200Z-051216T1700Z/
/O.EXB.KCTP.WS.W.0002.051215T1500Z-051216T1700Z/
WARREN-SULLIVAN-
530 PM EST WED DEC 14 2005

...WINTER STORM WARNING IN EFFECT FROM 10 AM THURSDAY TO 12 PM
EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE EARLY
AFTERNOON HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY
MORNING. SNOW WILL DEVELOP DURING THE EARLY AFTERNOON HOURS...AND
WILL PERSIST THROUGH THURSDAY NIGHT AND FRIDAY MORNING. THE SNOW
MAY BECOME HEAVY AT TIMES BY THURSDAY EVENING...AND LAST
THROUGHOUT THURSDAY NIGHT. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES
WILL BE POSSIBLE BY THURSDAY EVENING...WITH THE HIGHER AMOUNTS
EXPECTED IN WARREN COUNTY.

TOTAL SNOWFALL ACCUMULATIONS BY THE TIME THE SNOW TAPERS OFF
MIDDAY FRIDAY WILL BE 6 TO 8 INCHES. SOME SLEET MAY BRIEFLY MIX IN
AT TIMES LATE THURSDAY NIGHT.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ028-036-046-049>053-056>059-063-064-150630-
/O.UPG.KCTP.WS.A.0003.051215T1200Z-051216T1700Z/
/O.EXB.KCTP.WS.W.0002.051215T1800Z-051216T1700Z/
JUNIATA-FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-
530 PM EST WED DEC 14 2005

...WINTER STORM WARNING IN EFFECT FROM 1 PM THURSDAY TO 12 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 1 PM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE EARLY
AFTERNOON HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY
MORNING. SNOW WILL DEVELOP DURING THE EARLY TO MID AFTERNOON HOURS
THURSDAY. THE SNOW WILL THEN MIX WITH...AND EVENTUALLY CHANGE TO A
MIXTURE OF SLEET AND FREEZING RAIN TOWARD...OR JUST AFTER SUNSET
THURSDAY. THIS MIXTURE OF SLEET AND FREEZING RAIN WILL CONTINUE
THROUGH MUCH OF THURSDAY NIGHT...ALTHOUGH PRECIPITATION MAY CHANGE
TO PLAIN RAIN FOR A TIME LATE THURSDAY NIGHT.

AT THIS TIME...IT APPEARS THAT 1 TO 3 INCHES OF SNOWFALL WILL
ACCUMULATE BY THURSDAY EVENING ACROSS THE AREA. STORM TOTAL
SNOWFALL ACCUMULATION OF 2 TO 4 INCHES ARE CURRENTLY EXPECTED.
HOWEVER...IN ADDITION TO THE SNOWFALL...ICE ACCRETION OF AROUND
ONE QUARTER OF AN INCH IS EXPECTED. THIS MAY LEAD TO SOME DOWNED
TREE LIMBS AND POWER LINES...AND SUBSEQUENT SCATTERED POWER
OUTAGES ACROSS THE AREA THURSDAY NIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ005-006-010>012-017>019-037-041-045-150630-
/O.EXT.KCTP.WS.W.0002.051215T1500Z-051216T1700Z/
MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-
SOUTHERN CLINTON-
530 PM EST WED DEC 14 2005

...WINTER STORM WARNING NOW IN EFFECT FROM 10 AM THURSDAY TO
12 PM EST FRIDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 10 AM THURSDAY TO
12 PM EST FRIDAY. 

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE MID
MORNING HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY MORNING.
SNOW WILL DEVELOP DURING THE MID MORNING HOURS THURSDAY...AND WILL
PERSIST THROUGH THURSDAY NIGHT AND FRIDAY MORNING. THE SNOW WILL
BECOME HEAVY AT TIMES THURSDAY AFTERNOON...AND INTO THURSDAY
NIGHT. THE SNOW MAY MIX WITH...OR EVEN CHANGE TO SLEET AND
FREEZING RAIN AT TIMES THURSDAY NIGHT...ESPECIALLY IN AREAS NEAR
AND SOUTH OF INTERSTATE 80. THE SNOW IS EXPECTED TO GRADUALLY
TAPER OFF TO SNOW SHOWERS AND FLURRIES BY MIDDAY FRIDAY.

AT THIS TIME...IT APPEARS THAT 1 TO 3 INCHES OF SNOWFALL WILL
ACCUMULATE BY THURSDAY EVENING ACROSS THE AREA. STORM TOTAL
SNOWFALL ACCUMULATION OF 4 TO 8 INCHES ARE CURRENTLY
EXPECTED...WITH THE HIGHEST AMOUNTS EXPECTED NORTH OF INTERSTATE
80. HOWEVER...IN ADDITION TO THE SNOWFALL...ICE ACCRETION OF UP
TO ONE TENTH OF AN INCH WILL BE POSSIBLE THURSDAY NIGHT SOUTH OF
INTERSTATE 80.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ024>027-033>035-150630-
/O.CON.KCTP.WS.W.0002.051215T1200Z-051216T1700Z/
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-SOMERSET-BEDFORD-FULTON-
530 PM EST WED DEC 14 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO
12 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO
12 PM EST FRIDAY. 

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 7 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE EARLY 
MORNING HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY MORNING.
LIGHT SNOW WILL DEVELOP DURING THE EARLY MORNING HOURS THURSDAY.
THE SNOW WILL BECOME HEAVIER TOWARD...AND ESPECIALLY AFTER
NOONTIME THURSDAY...WITH ACCUMULATIONS OF 2 TO 4 INCHES EXPECTED
BY THURSDAY EVENING. THE SNOW WILL THEN MIX WITH...AND EVENTUALLY
CHANGE OVER TO SLEET AND FREEZING RAIN BY THURSDAY EVENING...AND
THIS MIXTURE OF WINTRY PRECIPITATION WILL THEN PERSIST INTO
THURSDAY NIGHT...BEFORE CHANGING BACK TO ALL SNOW FRIDAY MORNING.
THE SNOW WILL THEN TAPER TO SNOW SHOWERS AND FLURRIES BY MIDDAY
FRIDAY.

AT THIS TIME...STORM TOTAL SNOWFALL ACCUMULATION OF 5 TO 9 INCHES
IS EXPECTED. HOWEVER...IN ADDITION TO THE SNOWFALL...ICE ACCRETION
OF BETWEEN ONE TENTH OF AN INCH...TO ONE QUARTER OF AN INCH WILL
ALSO BE POSSIBLE...ESPECIALLY FOR AREAS SOUTH OF THE PENNSYLVANIA
TURNPIKE.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ065-066-150630-
/O.UPG.KCTP.WS.A.0003.051215T1200Z-051216T1700Z/
/O.NEW.KCTP.WW.Y.0004.051215T1800Z-051216T1700Z/
YORK-LANCASTER-
530 PM EST WED DEC 14 2005

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 12 PM
EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT FROM 1 PM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION BEGINNING THURSDAY
AFTERNOON...AND WILL LAST THROUGH FRIDAY MORNING. PRECIPITATION
WILL START AS SNOW EVERYWHERE EARLY THURSDAY AFTERNOON...AND WILL
CONTINUE THROUGHOUT THE DAY. ACCUMULATIONS DURING THE DAYLIGHT
HOURS WILL RANGE FROM 1 TO 2 INCHES...WITH THE HIGHEST AMOUNTS
NORTH OF THE PENNSYLVANIA TURNPIKE.

BY LATE THURSDAY AFTERNOON...WARMER AIR MOVING IN ALOFT FROM THE
SOUTH WILL CAUSE THE SNOW TO MIX WITH SLEET AND FREEZING RAIN.
THIS WILL CAUSE SLIPPERY TRAVEL CONDITIONS ACROSS THE ADVISORY
AREA DURING THE EVENING COMMUTE THURSDAY. THE MIXED PRECIPITATION
SHOULD EVENTUALLY CHANGE TO PLAIN RAIN DURING THURSDAY
NIGHT...BEFORE CHANGING BACK TO SNOW FRIDAY MORNING.

AT THIS TIME...TOTAL SNOWFALL ACCUMULATION OF 1 TO 3 INCHES IS
EXPECTED...ALONG WITH ICE ACCRETION OF BETWEEN ONE TENTH...AND ONE
QUARTER OF AN INCH.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY
SPOTS DEVELOP FIRST.

$$

KL/MMD
000 
WWUS41 KCTP 150304
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1004 PM EST WED DEC 14 2005

.A WINTER STORM WILL AFFECT MUCH OF CENTRAL PENNSYLVANIA THURSDAY
INTO FRIDAY MORNING.

PAZ004>006-010>012-017>019-037-041-042-045-151115-
/O.CON.KCTP.WS.W.0002.051215T1500Z-051216T1700Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-
1004 PM EST WED DEC 14 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO
12 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO
12 PM EST FRIDAY. 

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 10 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE MID
MORNING HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY MORNING.
SNOW WILL DEVELOP DURING THE MID TO LATE MORNING HOURS ON 
THURSDAY...AND WILL PERSIST THROUGH THURSDAY NIGHT AND FRIDAY
MORNING. THE SNOW WILL BECOME HEAVY AT TIMES THURSDAY
AFTERNOON...AND INTO THURSDAY NIGHT. THE SNOW MAY MIX WITH...OR
EVEN CHANGE TO SLEET AND FREEZING RAIN AT TIMES THURSDAY
NIGHT...ESPECIALLY IN AREAS NEAR AND SOUTH OF INTERSTATE 80. THE
SNOW IS EXPECTED TO GRADUALLY TAPER OFF TO SNOW SHOWERS AND
FLURRIES BY MIDDAY FRIDAY.

A STORM TOTAL SNOW AND SLEET ACCUMULATION OF 4 TO 8 INCHES IS
EXPECTED...WITH THE HIGHEST AMOUNTS EXPECTED TO BE ALONG AND JUST
TO THE NORTH OF INTERSTATE 80. HOWEVER...IN ADDITION TO THE SNOW
AND SLEET...ICE ACCRETION OF ONE-TENTH TO ONE-QUARTER OF AN INCH
WILL BE POSSIBLE THURSDAY NIGHT SOUTH OF INTERSTATE 80.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED EARLY THURSDAY MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ024>027-033>035-151115-
/O.CON.KCTP.WS.W.0002.051215T1200Z-051216T1700Z/
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-SOMERSET-BEDFORD-FULTON-
1004 PM EST WED DEC 14 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO
12 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO
12 PM EST FRIDAY. 

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 7 AM THURSDAY TO 12 PM
EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE EARLY
MORNING HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY MORNING.
LIGHT SNOW WILL DEVELOP AFTER SUNRISE ON THURSDAY. THE SNOW WILL
BECOME HEAVIER TOWARD...AND ESPECIALLY AFTER NOONTIME...ON
THURSDAY. ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED BY THURSDAY
EVENING. 

THE SNOW WILL THEN MIX WITH...AND EVENTUALLY CHANGE OVER
TO SLEET AND FREEZING RAIN THURSDAY EVENING...AND THIS MIXTURE OF
WINTRY PRECIPITATION WILL THEN PERSIST INTO THURSDAY
NIGHT...BEFORE CHANGING BACK TO ALL SNOW FRIDAY MORNING. THE SNOW
WILL THEN TAPER TO SNOW SHOWERS AND FLURRIES BY MIDDAY FRIDAY.
STORM TOTAL SNOWFALL ACCUMULATION OF 5 TO 9 INCHES IS EXPECTED.

HOWEVER...IN ADDITION TO THE SNOWFALL...A HEAVY...DAMAGING ICE
ACCRETION OF AROUND ONE-QUARTER TO ONE-HALF OF AN INCH IS
EXPECTED...ESPECIALLY FOR AREAS SOUTH OF THE PENNSYLVANIA
TURNPIKE. THIS WILL LEAD TO SOME DOWNED TREE LIMBS AND POWER
LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES ACROSS THE AREA
THURSDAY NIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED EARLY THURSDAY MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ028-036-046-049>053-056>059-063-064-151115-
/O.CON.KCTP.WS.W.0002.051215T1800Z-051216T1700Z/
JUNIATA-FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-
1004 PM EST WED DEC 14 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THURSDAY TO
12 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THURSDAY TO
12 PM EST FRIDAY. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION FROM THE EARLY
AFTERNOON HOURS ON THURSDAY...AND WILL LAST THROUGH FRIDAY
MORNING. SNOW WILL DEVELOP DURING THE AFTERNOON HOURS ON THURSDAY.
THE SNOW WILL THEN MIX WITH...AND EVENTUALLY CHANGE TO A MIXTURE
OF SLEET AND FREEZING RAIN AROUND SUNSET THURSDAY. THIS MIXTURE
OF SLEET AND FREEZING RAIN WILL CONTINUE THROUGH MUCH OF THURSDAY
NIGHT...ALTHOUGH PRECIPITATION MAY CHANGE TO PLAIN RAIN FOR A TIME
LATE THURSDAY NIGHT.

AT THIS TIME...IT APPEARS THAT 1 TO 3 INCHES OF SNOW AND SLEET WILL
ACCUMULATE BY THURSDAY EVENING ACROSS THE AREA. STORM TOTAL SNOW
AND SLEET ACCUMULATIONS OF 2 TO 4 INCHES ARE CURRENTLY EXPECTED.

HOWEVER...A HEAVY...DAMAGING ICE ACCRETION OF AROUND ONE QUARTER
OF AN INCH IS EXPECTED. THIS WILL LEAD TO SOME DOWNED TREE LIMBS
AND POWER LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES ACROSS
THE AREA THURSDAY NIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED EARLY THURSDAY MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ065-066-151115-
/O.CON.KCTP.WW.Y.0004.051215T1800Z-051216T1700Z/
YORK-LANCASTER-
1004 PM EST WED DEC 14 2005

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THURSDAY
TO 12 PM EST FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THURSDAY TO
12 PM EST FRIDAY. 

A COMPLEX WINTER STORM WILL AFFECT THE REGION BEGINNING THURSDAY
AFTERNOON...AND WILL LAST THROUGH FRIDAY MORNING. PRECIPITATION
WILL START AS SNOW ON THURSDAY AFTERNOON...AND WILL CONTINUE
INTO THE EVENING. ACCUMULATIONS DURING THE DAYLIGHT HOURS WILL
RANGE FROM 1 TO 2 INCHES.

BY THURSDAY EVENING...WARMER AIR MOVING IN ALOFT FROM THE SOUTH
WILL CAUSE THE SNOW TO MIX WITH AND CHANGE TO SLEET AND FREEZING
RAIN. THIS WILL CAUSE SLIPPERY TRAVEL CONDITIONS ACROSS THE
ADVISORY AREA DURING THE EVENING COMMUTE THURSDAY. THE MIXED
PRECIPITATION SHOULD EVENTUALLY CHANGE TO PLAIN RAIN DURING
THURSDAY NIGHT...BEFORE BRIEFLY CHANGING BACK TO A LITTLE SNOW ON
FRIDAY MORNING.

AT THIS TIME...TOTAL SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES
ARE EXPECTED...ALONG WITH ICE ACCRETION OF BETWEEN ONE-TENTH...AND
ONE-QUARTER OF AN INCH. THIS COMBINATION OF WINTRY PRECIPITATION
WILL MAKE TRAVEL VERY SLIPPERY AND MAY CAUSE SCATTERED POWER
OUTAGES.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED EARLY THURSDAY MORNING.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY
SPOTS DEVELOP FIRST.

$$

DANGELO/KL
000 
WWUS41 KCTP 150832
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
332 AM EST THU DEC 15 2005

.A WINTER STORM WILL AFFECT MUCH OF CENTRAL PENNSYLVANIA TODAY 
THROUGH FRIDAY MORNING.

PAZ004>006-010>012-017>019-037-041-042-045-151815-
/O.CON.KCTP.WS.W.0002.051215T1500Z-051216T1700Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-
332 AM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 12 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 12 PM
EST FRIDAY.

SNOW WILL DEVELOP DURING THE MID TO LATE MORNING HOURS TODAY...
AND PERSIST THROUGH TONIGHT AND INTO FRIDAY MORNING. THE SNOW WILL
BECOME HEAVY AT TIMES THIS AFTERNOON AND TONIGHT...AND MAY MIX
WITH...OR EVEN CHANGE TO SLEET AND FREEZING RAIN AT TIMES
TONIGHT...MAINLY IN AREAS NEAR AND SOUTH OF INTERSTATE 80. THE
SNOW WILL TAPER OFF TO SNOW SHOWERS AND FLURRIES BY MIDDAY FRIDAY.

A STORM TOTAL SNOW AND SLEET ACCUMULATION OF 4 TO 8 INCHES IS
EXPECTED...WITH THE HIGHEST AMOUNTS ALONG AND JUST TO THE NORTH
OF INTERSTATE 80. IN ADDITION TO THE SNOW AND SLEET... ICE
ACCRETION OF ONE-TENTH TO ONE-QUARTER OF AN INCH WILL BE POSSIBLE
TONIGHT SOUTH OF INTERSTATE 80...WHICH MAY CAUSE SPORADIC LOCAL 
POWER OUTAGES DUE TO DOWNED TREE LIMBS OVERNIGHT INTO FRIDAY 
MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ024>027-033>035-151815-
/O.CON.KCTP.WS.W.0002.051215T1200Z-051216T1700Z/
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-SOMERSET-BEDFORD-FULTON-
332 AM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 12 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 7 AM THIS MORNING TO 12 PM
EST FRIDAY.

LIGHT SNOW WILL DEVELOP DURING THE EARLY TO MID MORNING HOURS
TODAY...BECOMING STEADIER AND HEAVIER THIS AFTERNOON. ACCUMULATIONS
OF 2 TO 4 INCHES ARE EXPECTED BY THIS EVENING.

THE SNOW WILL MIX WITH...AND EVENTUALLY CHANGE TO SLEET AND
FREEZING RAIN LATER THIS EVENING. THIS MIXTURE WILL CONTINUE FOR
MOST THE OVERNIGHT HOURS BEFORE CHANGING BACK TO ALL SNOW FRIDAY
MORNING. FRIDAY MORNING SNOW WILL TAPER TO SNOW SHOWERS AND
FLURRIES BY MIDDAY. STORM TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 9
INCHES ARE EXPECTED.

IN ADDITION TO THE SNOWFALL...A HEAVY...DAMAGING ICE ACCRETION OF
AROUND ONE-QUARTER TO ONE-HALF OF AN INCH IS EXPECTED...ESPECIALLY
FOR AREAS SOUTH OF THE PENNSYLVANIA TURNPIKE. THIS WILL LEAD TO
SOME DOWNED TREE LIMBS AND POWER LINES...AND SUBSEQUENT SCATTERED
POWER OUTAGES ACROSS THE AREA TONIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ028-036-046-049>053-056>059-063-064-151815-
/O.CON.KCTP.WS.W.0002.051215T1800Z-051216T1700Z/
JUNIATA-FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-
332 AM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 12 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 12 PM EST FRIDAY. 

SNOW WILL DEVELOP ACROSS THE AREA BY EARLY AFTERNOON... AND
CONTINUE INTO THIS EVENING BEFORE MIXING WITH...AND EVENTUALLY
CHANGING TO A MIXTURE OF SLEET AND FREEZING RAIN BY MID TO LATE
EVENING. A MIXTURE OF SLEET AND FREEZING RAIN WILL CONTINUE
FOR MUCH OF THE OVERNIGHT HOURS...AND PERHAPS CHANGE TO PLAIN
RAIN FOR A TIME LATE TONIGHT OR EARLY FRIDAY MORNING.

AT THIS TIME...IT APPEARS THAT 1 TO 3 INCHES OF SNOW AND SLEET
WILL ACCUMULATE ACROSS THE AREA BY THIS EVENING. STORM TOTAL SNOW
AND SLEET ACCUMULATIONS OF 2 TO 4 INCHES ARE CURRENTLY EXPECTED.

IN ADDITION...A HEAVY...DAMAGING ICE ACCRETION OF AROUND ONE QUARTER
INCH IS ALSO EXPECTED. THIS WILL LEAD TO SOME DOWNED TREE LIMBS
AND POWER LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES ACROSS
THE AREA TONIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS MORNING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ065-066-151815-
/O.CON.KCTP.WW.Y.0004.051215T1800Z-051216T1700Z/
YORK-LANCASTER-
332 AM EST THU DEC 15 2005

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 12 PM EST FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 12 PM EST FRIDAY. 

PRECIPITATION WILL START AS SNOW THIS AFTERNOON...AND CONTINUE
INTO THE EVENING HOURS. ACCUMULATIONS DURING THE DAYLIGHT HOURS WILL
RANGE FROM 1 TO 2 INCHES.

BY THIS EVENING...SNOW WILL BEGIN TO MIX WITH AND EVENTUALLY CHANGE
TO SLEET AND FREEZING RAIN. THIS WILL CAUSE SLIPPERY TRAVEL
CONDITIONS ACROSS THE ADVISORY AREA DURING THE EVENING COMMUTE.
THE MIXED PRECIPITATION SHOULD EVENTUALLY CHANGE TO PLAIN RAIN
LATE TONIGHT OR AFTER MIDNIGHT...BEFORE BRIEFLY CHANGING BACK TO
A LITTLE SNOW ON FRIDAY MORNING.

AT THIS TIME...TOTAL SNOW AND SLEET ACCUMULATIONS OF 1 TO
3 INCHES ARE EXPECTED...ALONG WITH ICE ACCRETION OF BETWEEN ONE-
TENTH...AND ONE-QUARTER OF AN INCH. THIS COMBINATION OF WINTRY
PRECIPITATION WILL MAKE TRAVEL VERY SLIPPERY AND MAY CAUSE
SPORATIC POWER OUTAGES.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS MORNING.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY
SPOTS DEVELOP FIRST.

$$

DEVOIR
000 
WWUS41 KCTP 152030
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
330 PM EST THU DEC 15 2005

.A WINTER STORM WILL AFFECT MUCH OF CENTRAL PENNSYLVANIA THIS
EVENING THROUGH FRIDAY MORNING.

PAZ004>006-010>012-017>019-037-041-042-045-160430-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-
330 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

SNOW...HEAVY AT TIMES...WILL AND PERSIST THROUGH TONIGHT AND INTO
FRIDAY MORNING. THE SNOW MAY MIX WITH...OR EVEN CHANGE TO SLEET
AND FREEZING RAIN AT TIMES AROUND...AND ESPECIALLY AFTER
SUNSET...MAINLY IN AREAS NEAR AND SOUTH OF INTERSTATE 80. THE SNOW
WILL TAPER OFF TO SNOW SHOWERS AND FLURRIES BY MIDDAY FRIDAY.

A STORM TOTAL SNOW AND SLEET ACCUMULATION OF 5 TO 8 INCHES IS
EXPECTED...WITH THE HIGHEST AMOUNTS ALONG AND JUST TO THE NORTH
OF INTERSTATE 80. IN ADDITION TO THE SNOW AND SLEET...ICE
ACCRETION FROM FREEZING RAIN OF ONE-TENTH TO ONE-QUARTER OF AN
INCH WILL BE POSSIBLE TONIGHT SOUTH OF INTERSTATE 80...WHICH MAY
CAUSE SPORADIC LOCAL POWER OUTAGES DUE TO DOWNED TREE LIMBS.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ024>027-033>035-160430-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-SOMERSET-BEDFORD-FULTON-
330 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

SNOW...HEAVY AT TIMES...WILL GRADUALLY MIX WITH AND CHANGE TO
SLEET AND FREEZING RAIN AT TIMES TOWARD SUNSET. THIS WINTRY MIX
WILL THEN PERSIST THROUGH MUCH OF TONIGHT...BEFORE THE
PRECIPITATION CHANGES BACK TO LIGHTER SNOW AND SNOW FLURRIES
BEFORE DAYBREAK FRIDAY.

AT THIS TIME...STORM TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 9 INCHES ARE
EXPECTED. IN ADDITION TO THE SNOWFALL...A HEAVY...DAMAGING ICE
ACCRETION OF AROUND ONE-QUARTER TO ONE-HALF OF AN INCH IS
EXPECTED...ESPECIALLY FOR AREAS SOUTH OF THE PENNSYLVANIA
TURNPIKE. THIS WILL LEAD TO SOME DOWNED TREE LIMBS AND POWER
LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES ACROSS THE AREA
LATER TONIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ028-036-046-049>053-056>059-063-064-160430-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
JUNIATA-FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-
330 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

SNOW WILL GRADUALLY MIX WITH...AND CHANGE TO A MIXTURE OF SLEET
AND FREEZING RAIN ACROSS THE REGION TOWARD SUNSET. THIS MIXTURE
OF SLEET AND FREEZING RAIN WILL THEN CONTINUE FOR MUCH OF THE
OVERNIGHT HOURS...AND PERHAPS CHANGE TO PLAIN RAIN FOR A TIME LATE
TONIGHT OR EARLY FRIDAY MORNING.

AT THIS TIME...IT APPEARS THAT 2 TO 4 INCHES OF SNOW AND SLEET
WILL ACCUMULATE ACROSS THE AREA BY THIS EVENING. STORM TOTAL SNOW
AND SLEET ACCUMULATIONS OF 3 TO 5 INCHES ARE CURRENTLY EXPECTED.

IN ADDITION...A HEAVY...DAMAGING ICE ACCRETION OF AROUND ONE
QUARTER INCH IS ALSO EXPECTED. THIS WILL LEAD TO SOME DOWNED TREE
LIMBS AND POWER LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES
ACROSS THE AREA LATER TONIGHT INTO FRIDAY MORNING.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ065-066-160430-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-051216T1700Z/
YORK-LANCASTER-
330 PM EST THU DEC 15 2005

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY. 



BY THIS EVENING...SNOW WILL BEGIN TO MIX WITH AND EVENTUALLY
CHANGE TO SLEET AND FREEZING RAIN. THIS WILL CAUSE SLIPPERY
TRAVEL CONDITIONS ACROSS THE ADVISORY AREA DURING THE EVENING
COMMUTE. THE MIXED PRECIPITATION SHOULD EVENTUALLY CHANGE TO
PLAIN RAIN LATE TONIGHT OR AFTER MIDNIGHT...BEFORE BRIEFLY
CHANGING BACK TO A LITTLE SNOW ON FRIDAY MORNING.

SNOW WILL GRADUALLY MIX WITH...AND CHANGE TO A MIXTURE OF SLEET
AND FREEZING RAIN TOWARD SUNSET. THIS MIXTURE OF SLEET AND
FREEZING RAIN WILL THEN PERSIST EARLY TONIGHT...BEFORE CHANGING TO
PLAIN RAIN BEFORE MIDNIGHT. THE RAIN WILL THEN TAPER OFF EARLY
MONDAY MORNING...POSSIBLY MIXING BACK WITH SNOW.

AT THIS TIME...TOTAL SNOW AND SLEET ACCUMULATIONS OF 1 TO
3 INCHES ARE EXPECTED...ALONG WITH ICE ACCRETION OF BETWEEN ONE-
TENTH...AND ONE-QUARTER OF AN INCH. THIS COMBINATION OF WINTRY
PRECIPITATION WILL MAKE TRAVEL VERY SLIPPERY AND MAY CAUSE
SPORADIC POWER OUTAGES.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER THIS EVENING.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY
SPOTS DEVELOP FIRST.

$$
KL
000 
WWUS41 KCTP 160236
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
936 PM EST THU DEC 15 2005

.A WINTER STORM WILL AFFECT MUCH OF CENTRAL PENNSYLVANIA THIS
EVENING THROUGH FRIDAY MORNING.

PAZ004>006-010>012-017>019-037-041-042-045-161045-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-
936 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

ACROSS THE NORTHWEST AND NORTH CENTRAL MOUNTAINS...SNOW...OCCASIONALLY
MIXED WITH SLEET AND FREEZING RAIN...WILL PERSIST INTERMITTENTLY
OVERNIGHT. A FEW BURSTS OF HEAVIER SNOW WILL REMAIN 
POSSIBLE...ESPECIALLY AFTER MIDNIGHT. THIS SHOULD PRODUCE
ADDITIONAL SNOW AND SLEET ACCUMULATIONS OF 2 TO 4 INCHES NEAR AND
NORTH OF INTERSTATE 80.

ACROSS THE CENTRAL MOUNTAINS...SOUTH OF INTERSTATE 80...A MIX OF
SLEET AND FREEZING RAIN WILL GRADUALLY CHANGE BACK TO ALL SNOW
AFTER MIDNIGHT AS COLDER AIR MOVES IN ALOFT. THIS SHOULD PRODUCE
ADDITIONAL SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES...WITH
THE HIGHER AMOUNTS CLOSE TO INTERSTATE 80. IN ADDITION...ICE
ACCRETION OF BETWEEN ONE TENTH...AND ONE QUARTER OF AN INCH WILL
BE POSSIBLE FOR AREAS SOUTH OF INTERSTATE 80 BEFORE THE
PRECIPITATION CHANGES BACK TO SNOW. THIS ICE ACCRETION MAY CAUSE
SPORADIC LOCAL POWER OUTAGES DUE TO DOWNED TREE LIMBS LATER
TONIGHT. IN ADDITION...TREACHEROUS TRAVEL CONDITIONS WILL LIKELY
PERSIST INTO THE EARLY MORNING HOURS OF FRIDAY.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER TONIGHT.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ024>027-033>035-161045-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-SOMERSET-BEDFORD-FULTON-
936 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

A MIX OF SLEET AND FREEZING RAIN WILL PERSIST ACROSS THE SOUTH
CENTRAL MOUNTAINS AND LAUREL HIGHLANDS THROUGH MIDNIGHT.
HOWEVER...THE PRECIPITATION IS EXPECTED TO CHANGE BACK TO SNOW
TOWARD...AND AFTER MIDNIGHT. ADDITIONAL SNOW AND SLEET ACCUMULATIONS
OF 2 TO 4 INCHES ARE EXPECTED. IN ADDITION...ADDITIONAL ICE
ACCRETION OF ONE TENTH OF AN INCH TO ONE QUARTER OF AN INCH WILL
BE POSSIBLE BEFORE THE PRECIPITATION CHANGES BACK TO SNOW. THIS
WILL LEAD TO SOME DOWNED TREE LIMBS AND POWER LINES...AND
SUBSEQUENT SCATTERED POWER OUTAGES ACROSS THE AREA LATER TONIGHT
INTO FRIDAY MORNING.

EXPECT TREACHEROUS TRAVEL CONDITIONS TO PERSIST INTO THE EARLY
MORNING HOURS OF FRIDAY.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER TONIGHT.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ028-036-046-049>053-056>059-063-064-161045-
/O.CON.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
JUNIATA-FRANKLIN-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-
936 PM EST THU DEC 15 2005

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 12 PM EST FRIDAY. 

A MIX OF SLEET AND FREEZING RAIN WILL PERSIST ACROSS THE SOUTH
CENTRAL MOUNTAINS...AND LOWER AND MID SUSQUEHANNA VALLEY REGION
MUCH OF TONIGHT. THE PRECIPITATION IS EXPECTED TO MIX WITH...OR
CHANGE BACK TO SNOW TOWARD DAYBREAK. ADDITIONAL ICE ACCRETION OF
ONE TENTH OF AN INCH TO ONE QUARTER OF AN INCH WILL BE POSSIBLE
BEFORE ANY CHANGEOVER BACK TO SNOW. SOME PLAIN RAIN WILL ALSO BE
POSSIBLE FOR AREAS NEAR AND TO THE SOUTHEAST OF HARRISBURG THROUGH
THE EARLY MORNING HOURS...BEFORE THE PRECIPITATION CHANGES BACK TO
FREEZING RAIN AGAIN BEFORE DAYBREAK.

THE MODERATE ICE ACCUMULATIONS WILL LEAD TO SOME DOWNED TREE
LIMBS AND POWER LINES...AND SUBSEQUENT SCATTERED POWER OUTAGES
ACROSS THE AREA LATER TONIGHT INTO FRIDAY MORNING. IN
ADDITION...TREACHEROUS TRAVEL CONDITIONS WILL CONTINUE MUCH OF
TONIGHT...AND INTO THE FRIDAY MORNING COMMUTE.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER TONIGHT.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

$$

PAZ065-066-161045-
/O.CON.KCTP.WW.Y.0004.000000T0000Z-051216T1700Z/
YORK-LANCASTER-
936 PM EST THU DEC 15 2005

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 12 PM EST
FRIDAY. 

RAIN WILL CONTINUE ACROSS THE ADVISORY AREA MUCH OF TONIGHT.
HOWEVER...AS COLDER AIR DRAINS BACK TO THE SOUTH AND EAST BEFORE
DAYBREAK...THE PRECIPITATION MAY CHANGE BACK TO SLEET AND FREEZING
RAIN. THIS MAY LEAD TO ADDITIONAL TREACHEROUS TRAVEL CONDITIONS
TOWARD DAYBREAK...AND POSSIBLY INTO THE FRIDAY MORNING COMMUTE.
ADDITIONAL ICE ACCRETION OF LESS THAN ONE TENTH OF AN INCH WILL BE
POSSIBLE BEFORE DAYBREAK.

AN UPDATE TO THIS STATEMENT WILL BE ISSUED LATER TONIGHT.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES. MOTORISTS SHOULD BE
ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE SLIPPERY
SPOTS DEVELOP FIRST.

$$

KL/BL
000 
WWUS41 KCTP 160918
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
418 AM EST FRI DEC 16 2005

.A WINTER STORM WAS WINDING DOWN ACROSS CENTRAL PENNSYLVANIA THIS
MORNING AS LOW PRESSURE TRACKED ACROSS SOUTHERN NEW JERSEY.

PAZ004-019-024>028-033>036-045-046-049>053-056>059-063-064-161030-
/O.CAN.KCTP.WS.W.0002.000000T0000Z-051216T1700Z/
WARREN-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-
SOMERSET-BEDFORD-FULTON-FRANKLIN-SOUTHERN CLINTON-
SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-
418 AM EST FRI DEC 16 2005

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CANCELLED THE
WINTER STORM WARNING. 

LIGHT SNOW WILL TAPER TO FLURRIES EARLY THIS MORNING OVER MOST OF 
CENTRAL PENNSYLVANIA WITH LITTLE ADDITIONAL ACCUMULATION EXPECTED. 
FURTHER EAST...RAIN IN THE SUSQUEHANNA VALLEY MAY CHANGE TO A BRIEF 
PERIOD OF LIGHT SNOW BEFORE ENDING BY DAWN.

FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE...AT
WEATHER.GOV/STATECOLLEGE...ALL IN LOWER CASE.

$$

PAZ065-066-161030-
/O.CAN.KCTP.WW.Y.0004.000000T0000Z-051216T1700Z/
YORK-LANCASTER-
418 AM EST FRI DEC 16 2005

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SCATTERED RAIN OR SNOW SHOWERS WILL AFFECT THE AREA UNTIL AROUND
DAWN. NO SNOW ACCUMULATION IS EXPECTED.

FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE...AT
WEATHER.GOV/STATECOLLEGE...ALL IN LOWER CASE.

$$

PAZ005-006-010>012-017-018-037-041-042-161200-
/O.EXT.KCTP.WS.W.0002.000000T0000Z-051216T1200Z/
MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN-
418 AM EST FRI DEC 16 2005

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 AM EST THIS
MORNING...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 7 AM EST THIS
MORNING. 

LOW PRESSURE...LOCATED NEAR PHILADELPHIA EARLY THIS MORNING...WILL
TRACK NORTHEAST TODAY. A MIXTURE OF SNOW AND ICE WILL CHANGE TO
ALL SNOW BEFORE ENDING BY AROUND DAWN. ADDITIONAL SNOW
ACCUMULATIONS BETWEEN 5 AND 7 AM WILL GENERALLY BE AN INCH OR
LESS. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW OR ICE
ARE EXPECTED OR OCCURRING. ANY TRAVEL IS STRONGLY DISCOURAGED.
THOSE WITH TRAVEL PLANS IN THE WARNED AREA ARE ADVISED TO CHOOSE
AN ALTERNATIVE ROUTE...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS
UNAVOIDABLE. CARRY EXTRA SUPPLIES...INCLUDING BLANKETS...FOOD AND
A CELLULAR PHONE...IN CASE YOUR CAR BECOMES STRANDED.

FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE...AT
WEATHER.GOV/STATECOLLEGE...ALL IN LOWER CASE.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this winter storm warning went out at Dec 14, 10:58 AM EST, 4 hours 16 minutes earlier.

Area forecast discussion, Dec 14, 10:58 AM EST, 4 hours 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1058 AM EST WED DEC 14 2005

.SHORT TERM (REST OF TODAY THROUGH FRIDAY)...

BIG MODEL DIFFERENCES STILL EXIST LATE THIS MORNING BETWEEN THE MAIN
DETERMINISTIC MODELS (NAM AND GFS). GFS HAS PROVEN TO HAVE A BETTER
TRACK RECORD WITH EAST COAST SYSTEMS (THIS SEASON SO FAR INCLUDED)
AND TENDS TO BE EAST AND COLDER THAN THE NAMS. WITH THIS IN
MIND...IN COORDINATION/COLLABORATION WITH KLWX AND KPHI...WE DECIDED
TO EXPAND OUR CURRENT WINTER STORM WATCH TO INCLUDE YORK...ADAMS AND
LANCASTER COUNTIES IN SERN PENN WHERE SIGNIFICANT ICING IS THE MAIN
THREAT.

THE PRIMARY DIFFERENCE OBSERVED BETWEEN THE NAM AND GFS APPEARS TO
BE THE LACK OF LAYER COOLING VIA EVAPORATION AND SUBSEQUENT STRONG
UPWARD VERTICAL MOTION. NAM LAGS THE GFS IN 925-850 MB WET BULB
COOLING THURSDAY AFTERNOON AND NIGHT BY SOME 3-6 DEG C...WHICH LEADS
TO A MUCH QUICKER CHANGEOVER AND LIMITED SNOWFALL OVER ALL BUT THE
NORTH AND WEST. ANOTHER FACTOR IS AFTER A PERFECT RADIATIONAL
COOLING NIGHT AND RECORD LOW TEMPS...THICK HIGH CLOUD SHIELD THATS
OVERSPREAD THE REGION WAS KEEPING TEMPS UP TO SEVERAL DEG COLDER
THAN MAV AND MET GUIDANCE TEMPS.

THIS ALONG WITH LINEAR EXTRAPOLATION (WITHOUT A FURTHER EASTWARD
STORM TRACK) WOULD LEAD TO A GREATER ICING THREAT IN THE SOUTH AND
EAST AND MORE SNOW (DISPLAYED IN OUR GRIDS) FALLING ACROSS THE
CENTRAL AND NW MTNS.

SREF PLUME DIAGRAMS ARE LEANING TO THE COLDER SOLUTION. FOR EXAMPLE
THE MEAN FZRA ACCUMULATION FOR KMDT IS AROUND 0.20 WITH THE MAX
VALUE OF 0.35 ON TOP OF 2-4 INCHES OF SNOW. FOR KUNV...THE MEAN AND
MAX FZRA OFF THE SREF PLUMES COMES IN A 0.22 AND 0.7...PRECEDED BY
A MEAN OF 4 OF SNOW WITH THE MAX AMOUNT BY ONE COLDER MEMBER AROUND
10. MOSTLY SNOW 6 TO 12 IS DISPLAYED BY THE PLUME DIAGRAMS ACROSS
THE NW MTNS.

&&

.PREVIOUS DISCUSSION...
(ISSUED 313 AM EST WED DEC 14 2005)

SHORT TERM (TODAY THROUGH TONIGHT)...
HIGH LEVEL MOISTURE STREAMING EASTWARD THROUGH THE OHIO VALLEY
TAKING ON A MOTHEATEN APPEARANCE AS IT DOES SO...HEADING INTO A
RATHER SHARP 500 MB SHORTWAVE RIDGE. STRONG 1040+ MB SFC HIGH OVER
SOUTHERN QUEBEC PRODUCING STRONG DAMMING SIGNATURE EAST OF THE
ALLEGENY PLATEAU...EXTENDING FAR SOUTHWARD TO THE CAROLINAS.
CURRENT TEMPERATURE RANGE ACROSS CENTRAL PA IS THE SINGLE DIGITS
(ABOVE AND BELOW ZERO). LOTS OF COLD AIR TO OVERCOME IN THE NEXT
24 TO 36 HOURS.

RIBBON OF DECAYING UPPER LEVEL MOISTURE WILL TRANSLATE EASTWARD INTO
WESTERN PA TODAY...FILTERING THE SUNSHINE SOMEWHAT. BY THIS
EVENING...EXPECT THE HIGH CLOUDS TO HAVE DISSIPATED...WITH CLEAR TO
PARTLY CLOUDY SKIES THROUGH MIDNIGHT FOR MOST LOCATIONS. AFT 06
UTC...CLOUD COVER SHOULD RAPIDLY INCREASE ACROSS THE FAR SOUTHWEST
AS OUR POTENTIAL WINTER STORM APPROACHES THE REGION.
TEMPERATURES...AS A RESULT...WILL REBOUND AND BE NEARLY 15 DEGREES
WARMER TOMORROW NIGHT THAN THIS MORNING. SNOW MAY BREAK OUT TOWARDS
12 UTC THURSDAY OVER THE LAURELS...BUT WITH LITTLE ACCUMULATION
UNTIL AFT 12 UTC.

LONG TERM (THURSDAY THROUGH TUESDAY)...
CONCERNS OVER PTYPE CONTINUE TO ABOUND FOR THURSDAY AND THURSDAY
NIGHT. CLASSIC COLD AIR DAMMING SIGNATURE WITH ANOMALOUS SFC HIGH
LEADS ME TO BELIEVE THE NAM HAS BEEN OVERDOING THE WARMING IN THE
BOUNDARY LAYER...LEADING TO MORE MIXED PRECIPITATION ACROSS THE
CENTRAL MOUNTAINS. SREF PLUMES SHOW AGREEMENT OF MEMBERS FOR
PRECIPITATION STARTING AS SNOW EVERYWHERE DURING THE DAY THURSDAY.
THE FAR SOUTHEAST QUICKLY CHANGES TO A MIXTURE OF SLEET AND
FREEZING RAIN...THEN EVENTUALLY TO RAIN...WITH ZR AMOUNTS FAR TOO
LOW TO CONSIDER WS WATCH FOR ADAMS...YORK AND LANCASTER.

FURTHER NORTH...PLUMES SHOW SEVERAL HOURS OF ACCUMULATING
SNOW...MIXING WITH SLEET THURSDAY EVENING...AND CHANGING BACK TO
SNOW FRIDAY MORNING AS THE LOW WINDS UP OVER SOUTHERN NEW JERSEY.
AND FROM JUST NORTH OF THE LAUREL MOUNTAINS THROUGH NORTHWEST AND
NORTH CENTRAL PA...PLAIN SNOW IS THE ORDER OF THE DAY.

SNOW AMOUNTS WITH THE MIXING ARE PROBLEMATIC. ASSUMED A 7:1 RATIO
WITH QPF VALUES 1 INCH W.E. - SO MAX AMOUNTS TOPPING OUT NEAR 7
INCHES IN MY GRIDS OVER THE CENTRAL MOUNTAINS...WHERE QPF WAS
HIGHEST. FURTHER WEST AND NORTH...AMOUNTS DROP OFF SOMEWHAT IN THE
W.E...SO EVEN THOUGH THOSE AREAS STAY MOSTLY SNOW...THE AMOUNTS
SHOULD END UP LESS BUT STILL WITHIN WATCH CRITERIA.

TO THE SOUTHEAST OF THE MAX SNOWFALL...SIGNIFICANT ICE
ACCUMULATION WILL BE POSSIBLE...MAINLY SOUTHEAST OF A STATE
COLLEGE TO ALTOONA LINE. SNOWFALL ACCUMULATIONS WILL ONLY BE ON
THE ORDER OF 2 TO 4 INCHES THERE...BUT SLEET AND ICE ACCUMULATIONS
COULD EASILY EXCEED 0.25. CONFIDENCE ON MEETING WATCH CRITERIA IS
CERTAINLY 50/50 FROM FRANKLIN COUNTY NORTHEASTWARD TO SCHUYLKILL
COUNTY...BUT GIVEN THE MAGNITUDE OF THE DAMMING...CAUTION IS THE
ORDER OF THE DAY IN PLACES LIKE DAUPHIN AND CUMBERLAND COUNTY. A
SLIGHT DEVIATION IN THE TRACK OF THE SFC LOW WILL MEAN MORE WARM
AIR INTRUSION INTO THE MIDDLE SUSQUEHANNA RIVER VALLEY AND SOUTH
CENTRAL MOUNTAINS...AND LESS IN THE WAY OF A SNOW/ICE THREAT. TOO
EARLY FOR SPECIFICS...BUT A WATCH IS DEFINITELY WARRANTED GIVEN
THE THREAT.

THINGS SHOULD WIND DOWN BY MIDDAY FRIDAY...FOLLOWED BY A RATHER
PROLONGED LAKE EFFECT REGIME WHICH WILL LAST FROM FRIDAY NIGHT
THROUGH EARLY TUESDAY OF NEXT WEEK.

AVIATION...
VFR CONDITIONS EXPECTED ACROSS THE REGION INTO MID MORNING THU AM.
THERE COULD BE AN ISOLATED AREA OR TWO OF FOG AND SMOKE EARLY THIS
AM...GIVEN A STRONG INVERSION.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH FOR PAZ004>006-010>012-017>019-024>028-
033>037-041-042-045-046-049>053-056>059-063>066 FROM 7 AM
THURSDAY TO NOON FRIDAY.
&&

SHORT TERM...LAMBERT
Hazardous weather outlook, Dec 14, 4:53 AM EST, 10 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
453 AM EST WED DEC 14 2005

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-151000-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
453 AM EST WED DEC 14 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A STORM SYSTEM DEVELOPING OVER THE CENTRAL PLAINS AND SOUTHEASTERN
STATES WILL BRING SNOW TO CENTRAL PENNSYLVANIA BEGINNING THURSDAY
MORNING ACROSS THE LAUREL HIGHLANDS...AND OVERSPREADING THE REMAINDER OF
PENNSYLVANIA BY EARLY THURSDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY
ACCUMULATE OVER A LARGE PORTION OF CENTRAL PENNSYLVANIA BY MIDDAY
FRIDAY. SOUTHERN AND EASTERN PORTIONS MAY SEE THE SNOW MIX WITH
AND CHANGE TO SLEET AND FREEZING RAIN LATE THURSDAY EVENING...AND
A SIGNIFICANT ACCUMULATION OF ICE IS POSSIBLE IN THESE AREAS LATE
THURSDAY NIGHT INTO FRIDAY.

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 14, 3:40 AM ESTWinter Storm WatchCTPAdams, Bedford, Blair, Cambria, Cameron, Centre and 27 more14 hr
Dec 14, 5:30 PM ESTWinter Weather AdvisoryCTPLancaster, York35 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2005Every winter storm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.