Alert archive / Pennsylvania / Winter Storm Warnings in 2009

Winter Storm Warning 7, NWS State College, PA

December 18, 200923 counties in Pennsylvania

NWS State College, PA issued this winter storm warning at Dec 18, 2009, 2:38 PM EST for 23 counties in Pennsylvania. It took effect at Dec 19, 2009, 12:00 AM EST. It was in force for 23 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 18, 2009, 2:38 PM EST (19:38 UTC)
In effect from
Dec 19, 2009, 12:00 AM EST
Expired
Dec 19, 2009, 10:45 PM EST
In force
23 hr
Issued by
NWS State College, PA
All 23 counties

Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Centre County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Union County, PA, York County, PA

The radar

The State College radar (KCCX), 77 km from the middle of the area, began a volume at 19:40 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.6 hours before the alert went out and 164 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, Washington/Dulle, VA at 12:00Z on 2009-12-18Temperature 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, Washington/Dulle, VA at 12:00Z on 2009-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939587897117136Sfc1 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
1400 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
85 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 181938
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
238 PM EST FRI DEC 18 2009


PAZ012-017-018-041-042-045-046-182045-
/O.CAN.KCTP.WS.A.0007.091219T0900Z-091220T1200Z/
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-
238 PM EST FRI DEC 18 2009

...WINTER STORM WATCH IS CANCELLED...

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

THE THREAT FOR SIGNIFICANT SNOWFALL HAS DIMINISHED. THUS THE
WINTER STORM WATCH HAS BEEN CANCELLED. LIGHT SNOWFALL IS STILL
POSSIBLE OVER NORTH CENTRAL PORTIONS OF PENNSYLVANIA...HOWEVER IT
APPEARS TOTAL ACCUMULATIONS WILL BE LESS THAN A COUPLE INCHES
BEFORE ENDING EARLY SUNDAY MORNING.

$$

PAZ033-190745-
/O.UPG.KCTP.WS.A.0007.091219T0900Z-091220T1200Z/
/O.NEW.KCTP.WS.W.0007.091219T0900Z-091220T0700Z/
SOMERSET-
238 PM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT FROM 4 AM SATURDAY TO 2 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SATURDAY TO
2 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW WILL OVERSPREAD PORTIONS OF THE LAUREL HIGHLANDS EARLY
SATURDAY MORNING. SNOW COULD BECOME HEAVY AT TIMES AROUND DAYBREAK
SATURDAY AND CONTINUE THROUGH SATURDAY EVENING BEFORE TAPERING OFF
EARLY SUNDAY MORNING. SNOWFALL TOTALS BETWEEN 6 AND 8 INCHES ARE
LIKELY...WITH LOCALLY HIGHER AMOUNTS ACROSS THE HIGHER TERRAIN.

SNOW COULD FALL HEAVY AT TIMES AND COMBINE WITH NORTHERLY WIND
GUSTS BETWEEN 15 AND 25 MPH...CREATING BLOWING AND DRIFTING SNOW.
THIS COULD AT TIMES REDUCE VISIBILITIES TO NEAR ZERO CREATING
DANGEROUS TRAVEL CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND
AT...WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-190745-
/O.UPG.KCTP.WS.A.0007.091219T0900Z-091220T1200Z/
/O.NEW.KCTP.WS.W.0007.091219T0900Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
238 PM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT FROM 4 AM SATURDAY TO 7 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SATURDAY TO
7 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW WILL OVERSPREAD PORTIONS OF THE LOWER SUSQUEHANNA RIVER
VALLEY EARLY SATURDAY MORNING. SNOW COULD BECOME HEAVY AT TIMES
AROUND DAYBREAK SATURDAY AND CONTINUE THROUGH SATURDAY EVENING
BEFORE TAPERING OFF EARLY SUNDAY MORNING. SNOWFALL TOTALS BETWEEN
7 AND 10 INCHES ARE LIKELY...WITH LOCALLY HIGHER AMOUNTS. 

SNOW COULD FALL HEAVY AT TIMES AND COMBINE WITH NORTHEASTERLY WIND
GUSTS BETWEEN 20 AND 30 MPH...CREATING BLOWING AND DRIFTING SNOW.
THIS COULD AT TIMES REDUCE VISIBILITIES TO NEAR ZERO CREATING
DANGEROUS TRAVEL CONDITIONS SATURDAY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND
AT...WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-190745-
/O.UPG.KCTP.WS.A.0007.091219T0900Z-091220T1200Z/
/O.NEW.KCTP.WS.W.0007.091219T0900Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
238 PM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT FROM 4 AM SATURDAY TO 7 AM EST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SATURDAY TO
7 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

SNOW WILL OVERSPREAD PORTIONS OF THE SUSQUEHANNA RIVER VALLEY
EARLY SATURDAY MORNING. SNOW COULD BECOME HEAVY AT TIMES AROUND
DAYBREAK SATURDAY AND CONTINUE THROUGH SATURDAY EVENING BEFORE
TAPERING OFF EARLY SUNDAY MORNING. SNOWFALL TOTALS BETWEEN 6 AND 8
INCHES ARE LIKELY...WITH LOCALLY HIGHER AMOUNTS.

SNOW COULD FALL HEAVY AT TIMES AND COMBINE WITH NORTHEASTERLY WIND
GUSTS BETWEEN 15 AND 25 MPH...CREATING BLOWING AND DRIFTING SNOW.
THIS COULD AT TIMES REDUCE VISIBILITIES TO NEAR ZERO CREATING
DANGEROUS TRAVEL CONDITIONS SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND
AT...WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ019-024>028-034-035-049>053-190745-
/O.UPG.KCTP.WS.A.0007.091219T0900Z-091220T1200Z/
/O.NEW.KCTP.WW.Y.0042.091219T0900Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-BEDFORD-
FULTON-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
238 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SATURDAY TO 2 AM
EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 AM SATURDAY
TO 2 AM EST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

LIGHT SNOW SHOWERS WILL OVERSPREAD THE REGION EARLY SATURDAY
MORNING AND CONTINUE THROUGH LATE SATURDAY NIGHT. SNOWFALL COULD
BECOME MODERATE AT TIMES AFTER DAYBREAK SATURDAY. SNOW
ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED BEFORE ENDING EARLY
SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MOTORISTS
SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE
SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR
YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND
AT...WEATHER.GOV/STATECOLLEGE.

&&

$$

BEACHLER
7 follow-up statements
000 
WWUS41 KCTP 190300
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1000 PM EST FRI DEC 18 2009

PAZ034-035-191500-
/O.UPG.KCTP.WW.Y.0042.091219T0900Z-091220T0700Z/
/O.EXB.KCTP.WS.W.0007.091219T0500Z-091220T0700Z/
BEDFORD-FULTON-
1000 PM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT UNTIL 2 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL 2 AM EST
SUNDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

LIGHT SNOW WILL OVERSPREAD THE REGION AROUND MIDNIGHT AND
CONTINUE THROUGH LATE SATURDAY NIGHT. THE SNOW WILL BECOME
MODERATE AT TIMES AFTER DAYBREAK SATURDAY. TOTAL ACCUMULATIONS OF
6 TO 10 INCHES ARE EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY
NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ033-191500-
/O.EXT.KCTP.WS.W.0007.091219T0500Z-091220T0700Z/
SOMERSET-
1000 PM EST FRI DEC 18 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 AM EST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 2 AM EST SUNDAY. 

LIGHT SNOW WILL OVERSPREAD THE REGION AROUND MIDNIGHT AND
CONTINUE THROUGH LATE SATURDAY NIGHT. THE SNOW WILL BECOME
MODERATE AT TIMES AFTER DAYBREAK SATURDAY. TOTAL ACCUMULATIONS OF
6 TO 9 INCHES ARE EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY
NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-191500-
/O.EXT.KCTP.WS.W.0007.091219T0700Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
1000 PM EST FRI DEC 18 2009

...WINTER STORM WARNING NOW IN EFFECT FROM 2 AM SATURDAY TO 7 AM
EST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 2 AM SATURDAY TO
7 AM EST SUNDAY. 

LIGHT SNOW WILL OVERSPREAD THE AREA EARLY SATURDAY MORNING WITH
AN INCH OR TWO OF ACCUMULATION LIKELY BY DAYBREAK. THE SNOW WILL
BECOME HEAVIER ON SATURDAY AND CONTINUE THROUGH SATURDAY EVENING
BEFORE TAPERING OFF EARLY SUNDAY MORNING. SNOWFALL TOTALS OF 10 TO
12 INCHES ARE LIKELY BY LATE SATURDAY NIGHT.

THE HEAVIEST SNOW WILL LIKELY FALL SATURDAY AFTERNOON AND
EVENING AND WILL BE ACCOMPANIED BY NORTHERLY WIND GUSTS AROUND 25
MPH...CREATING BLOWING AND DRIFTING IN OPEN...EXPOSED LOCATIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-191500-
/O.EXT.KCTP.WS.W.0007.091219T0700Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
1000 PM EST FRI DEC 18 2009

...WINTER STORM WARNING NOW IN EFFECT FROM 2 AM SATURDAY TO 7 AM
EST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 2 AM SATURDAY TO
7 AM EST SUNDAY. 

LIGHT SNOW WILL OVERSPREAD THE AREA EARLY SATURDAY MORNING WITH
AROUND AN INCH OR SO OF ACCUMULATION LIKELY BY DAYBREAK. THE SNOW
WILL BECOME HEAVIER ON SATURDAY AND CONTINUE THROUGH SATURDAY
EVENING BEFORE TAPERING OFF EARLY SUNDAY MORNING. SNOWFALL TOTALS
OF 6 TO 10 INCHES ARE LIKELY BY LATE SATURDAY NIGHT.

THE HEAVIEST SNOW WILL LIKELY FALL SATURDAY AFTERNOON AND
EVENING AND WILL BE ACCOMPANIED BY NORTHERLY WIND GUSTS AROUND 25
MPH...CREATING BLOWING AND DRIFTING IN OPEN...EXPOSED LOCATIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ017-018-191500-
/O.EXB.KCTP.WW.Y.0042.091219T0700Z-091220T0700Z/
CLEARFIELD-NORTHERN CENTRE-
1000 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM SATURDAY TO 2 AM
EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 AM SATURDAY
TO 2 AM EST SUNDAY.

LIGHT SNOW WILL OVERSPREAD THE REGION LATE TONIGHT AND CONTINUE
THROUGH LATE SATURDAY EVENING. SNOWFALL COULD BECOME MODERATE AT
TIMES AFTER DAYBREAK SATURDAY. TOTAL ACCUMULATIONS OF 3 TO 5
INCHES ARE EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ019-024>028-049>053-191500-
/O.EXT.KCTP.WW.Y.0042.091219T0700Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-UNION-
SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
1000 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 2 AM SATURDAY TO
2 AM EST SUNDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 2 AM SATURDAY
TO 2 AM EST SUNDAY. 

LIGHT SNOW WILL OVERSPREAD THE REGION LATE TONIGHT AND CONTINUE
THROUGH LATE SATURDAY EVENING. SNOWFALL COULD BECOME MODERATE AT
TIMES AFTER DAYBREAK SATURDAY. STORM TOTAL ACCUMULATIONS OF 4 TO 8
INCHES ARE EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY NIGHT.
THE HEAVIEST AMOUNTS WILL BE ACROSS THE SOUTHERN PORTION OF THE
ADVISORY AREA...INCLUDING JOHNSTOWN...ALTOONA AND HUNTINGDON. AREAS
NEAR I-80 WILL LIKELY SEE LIGHTER ACCUMULATIONS OF AROUND 4 INCHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$
000 
WWUS41 KCTP 190930
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
430 AM EST SAT DEC 19 2009

PAZ019-024>028-049>053-192130-
/O.UPG.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
/O.EXA.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-UNION-
SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
430 AM EST SAT DEC 19 2009

...WINTER STORM WARNING IN EFFECT UNTIL 2 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT
UNTIL 2 AM EST SUNDAY. THE WINTER WEATHER ADVISORY IS NO LONGER
IN EFFECT. 

SNOW WILL CONTINUE TO OVERSPREAD THE REGION EARLY TODAY AND
CONTINUE THROUGH SATURDAY EVENING. SNOW MAY BE HEAVY AT TIMES
WITH ACCUMULATIONS OF 4 TO 8 INCHES EXPECTED BY THE TIME SNOW
TAPERS OFF SATURDAY NIGHT. THE HEAVIEST AMOUNTS WILL BE ACROSS THE
SOUTHERN PORTION OF THE WARNING AREA...INCLUDING JOHNSTOWN...ALTOONA
AND HUNTINGDON. AREAS CLOSER TO INTERSTATE 80 WILL LIKELY SEE
LIGHTER ACCUMULATIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ033>035-192130-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
SOMERSET-BEDFORD-FULTON-
430 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY. 

SNOW WILL CONTINUE TO OVERSPREAD THE REGION AND CONTINUE THROUGH
SATURDAY EVENING. THE SNOW MAY BE HEAVY AT TIMES WITH TOTAL
ACCUMULATIONS OF 6 TO 9 INCHES EXPECTED BY THE TIME SNOW TAPERS
OFF SATURDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-192130-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
430 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

SNOW WILL CONTINUE TODAY...HEAVY AT TIMES. IN ADDITION...AS WINDS
BECOME GUTSY LATER TODAY...CONSIDERABLE BLOWING AND DRIFTING MAY
OCCUR CAUSING VISIBILITIES NEAR ZERO IN SOME AREAS. THE SNOW WILL
CONTINUE THROUGH THE DAY BEFORE TAPERING OFF EARLY SUNDAY
MORNING. SNOWFALL TOTALS OF 10 TO 12 INCHES ARE LIKELY BY LATE
SATURDAY NIGHT...WITH HIGHER AMOUNTS AS HIGH AS 2 FEET POSSIBLE
OVER FAR EASTERN AREAS OF LANCASTER COUNTY.

THE HEAVIEST SNOW WILL FALL FROM MID MORNING THROUGH SATURDAY
EVENING...WITH 1 TO 2 INCH PER HOUR SNOWFALL RATES POSSIBLE AT
TIMES. BLOWING AND DRIFTING SNOW WILL CAUSE EXTREMELY HAZARDOUS
TRAVEL CONDITIONS AND MAKE IT DIFFICULT FOR PLOWS TO KEEP ROADS
CLEAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-192130-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
430 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

SNOW WILL CONTINUE TODAY...HEAVY AT TIMES. IN ADDITION...AS WINDS
BECOME GUTSY LATER TODAY...CONSIDERABLE BLOWING AND DRIFTING MAY
OCCUR CAUSING VISIBILITIES NEAR ZERO IN SOME AREAS. THE SNOW WILL
CONTINUE THROUGH THE DAY BEFORE TAPERING OFF EARLY SUNDAY
MORNING. SNOWFALL TOTALS OF 10 TO 12 INCHES ARE LIKELY BY LATE
SATURDAY NIGHT.

THE HEAVIEST SNOW WILL FALL FROM MID MORNING THROUGH SATURDAY
EVENING...WITH 1 TO 2 INCH PER HOUR SNOWFALL RATES POSSIBLE AT
TIMES. BLOWING AND DRIFTING SNOW WILL CAUSE EXTREMELY HAZARDOUS
TRAVEL CONDITIONS AND MAKE IT DIFFICULT FOR PLOWS TO KEEP ROADS
CLEAR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ012-041-042-045-046-192130-
/O.EXA.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
NORTHERN CLINTON-NORTHERN LYCOMING-SULLIVAN-SOUTHERN CLINTON-
SOUTHERN LYCOMING-
430 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 AM EST SUNDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 2 AM EST
SUNDAY.

SNOW WILL CONTINUE TO OVERSPREAD THE REGION TODAY...AND MAY COME
DOWN HEAVY AT TIMES. TOTAL ACCUMULATIONS OF 3 TO 5 INCHES ARE
EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ017-018-192130-
/O.CON.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
CLEARFIELD-NORTHERN CENTRE-
430 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY. 

SNOW WILL CONTINUE TO OVERSPREAD THE REGION TODAY...AND MAY COME
DOWN HEAVY AT TIMES. TOTAL ACCUMULATIONS OF 3 TO 5 INCHES ARE
EXPECTED BY THE TIME SNOW TAPERS OFF SATURDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

LA CORTE/MARTIN
000 
WWUS41 KCTP 191404
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
904 AM EST SAT DEC 19 2009

PAZ019-024>028-033>035-049>053-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-
BEDFORD-FULTON-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
904 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY. 

SNOW WILL CONTINUE...HEAVY AT TIMES...ACROSS THE AREA THROUGH
LATE AFTERNOON. ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED BY THE
TIME SNOW TAPERS OFF LATER TONIGHT. THE GREATEST ACCUMULATIONS
WILL BE ACROSS THE SOUTHERN PORTION OF THE WARNING AREA...
INCLUDING JOHNSTOWN...ALTOONA AND HUNTINGDON. AREAS CLOSER TO
INTERSTATE 80 INCLUDING NORTHERN CAMBRIA...STATE COLLEGE...
BELLEFONTE AND MILTON WILL BE ON THE LOWER END OF THE 4 TO 8 INCH
RANGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-200715-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
904 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE TO HEAVY SNOW WILL CONTINUE THROUGHOUT THE DAY. IN 
ADDITION...WINDS WILL INCREASE THIS AFTERNOON WITH CONSIDERABLE
BLOWING AND DRIFTING CREATING NEAR ZERO VISIBILITIES IN SOME
AREAS. THE SNOW WILL TAPER OFF EARLY SUNDAY MORNING...WITH
SNOWFALL TOTALS OF 10 TO 12 INCHES LIKELY BY MIDNIGHT. HOWEVER...
AMOUNTS AS HIGH AS 2 FEET ARE POSSIBLE OVER FAR EASTERN AREAS OF
LANCASTER COUNTY... CLOSER TO THE COASTAL LOW CENTER.

EXTREME IMPACT WILL RESULT FROM 1 TO 3 INCH PER HOUR SNOWFALL
RATES THIS MORNING AND AFTERNOON. BLOWING AND DRIFTING SNOW WILL
INCREASE THIS AFTERNOON AND EVENING...MAKING ROADS DIFFICULT TO
MAINTAIN AND CAUSING EXTREMELY HAZARDOUS TRAVEL CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-200715-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
904 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE TO HEAVY SNOW WILL CONTINUE THROUGHOUT THE DAY. IN ADDITION...
WINDS WILL INCREASE THIS AFTERNOON WITH CONSIDERABLE BLOWING AND
DRIFTING CREATING NEAR ZERO VISIBILITIES IN SOME AREAS. SNOW WILL 
TAPER OFF LATE TONIGHT...WITH SNOWFALL TOTALS OF 10 TO 12 INCHES
COMMON BY MIDNIGHT AND LOCALLY HIGHER AMOUNTS TO 16 INCHES OVER
EASTERN PORTIONS OF LEBANON AND SCHUYLKILL COUNTIES.

EXTREME IMPACT WILL RESULT FROM 1 TO 3 INCH PER HOUR SNOWFALL
RATES THIS MORNING AND AFTERNOON. BLOWING AND DRIFTING SNOW WILL
INCREASE THIS AFTERNOON AND EVENING CAUSING EXTREMELY HAZARDOUS
TRAVEL CONDITIONS AS ROADS WILL BE DIFFICULT TO MAINTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ012-017-018-041-042-045-046-200700-
/O.CON.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-
904 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY. 

LIGHT TO OCCASIONALLY MODERATE SNOW WILL CONTINUE THROUGHOUT THE
DAY...WITH TOTAL ACCUMULATIONS OF 3 TO 5 INCHES EXPECTED BY THE
TIME SNOW TAPERS OFF LATER TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

DEVOIR
000 
WWUS41 KCTP 191722
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1222 PM EST SAT DEC 19 2009

PAZ019-024>028-033>035-049>053-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-
BEDFORD-FULTON-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
1222 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY. 

STEADY LIGHT SNOW WILL CONTINUE THROUGHOUT THE AFTERNOON WITH AN
ADDITIONAL 1 TO 3 INCHES OF ACCUMULATION EXPECTED. TOTAL ACCUMULATIONS
OF 4 TO 8 INCHES ARE EXPECTED ACROSS THE AREA BY THE TIME SNOW
TAPERS OFF LATER TONIGHT. THE GREATEST ACCUMULATIONS WILL BE
ACROSS THE SOUTHERN PORTION OF THE WARNING AREA...INCLUDING
JOHNSTOWN...ALTOONA AND HUNTINGDON. AREAS CLOSER TO INTERSTATE 80
INCLUDING NORTHERN CAMBRIA...STATE COLLEGE... BELLEFONTE AND
MILTON WILL BE ON THE LOWER END OF THE 4 TO 8 INCH RANGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
1222 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE TO HEAVY SNOW WILL CONTINUE THROUGHOUT AFTERNOON HOURS...
WITH SNOWFALL RATES OF 2 TO 3 INCHES PER HOUR IN SOME LOCATIONS.
IN ADDITION...INCREASING WINDS WILL CAUSE CONSIDERABLE BLOWING AND
DRIFTING SNOW...CREATING NEAR ZERO VISIBILITIES AT TIMES. 

THE SNOW WILL TAPER OFF EARLY SUNDAY MORNING. TOTAL SNOWFALL
IS NOW EXPECTED TO RANGE FROM 12 TO 16 INCHES OVER NORTHERN
PORTIONS OF ADAMS...YORK AND LANCASTER COUNTIES...RANGING UP 
TO AROUND 20 INCHES NEAR THE MARYLAND BORDER. BLOWING SNOW WILL
CREATE DRIFTS BETWEEN TWO AND THREE FEET.

EXTREME IMPACT WILL RESULT FROM 1 TO 3 INCH PER HOUR SNOWFALL
RATES THIS AFTERNOON...COMBINED WITH THE BLOWING AND DRIFTING SNOW.
ROADS WILL BE DIFFICULT TO MAINTAIN AND TRAVEL CONDITIONS WILL BE
EXTREMELY HAZARDOUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
1222 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE TO HEAVY SNOW WILL CONTINUE THROUGHOUT THE AFTERNOON. 
IN ADDITION... WINDS WILL INCREASE THIS AFTERNOON WITH
CONSIDERABLE BLOWING AND DRIFTING CREATING NEAR ZERO VISIBILITIES
IN SOME AREAS. SNOW WILL TAPER OFF LATE TONIGHT...WITH SNOWFALL
TOTALS OF 10 TO 12 INCHES COMMON BY MIDNIGHT OVER MUCH OF
SCHUYLKILL AND NORTHERN PORTIONS OF DAUPHIN AND PERRY COUNTIES.
SNOW AMOUNTS WILL INCREASE TO THE SOUTH...RANGING UP TO AROUND 20
INCHES ALONG THE MARYLAND BORDER.

EXTREME IMPACT WILL RESULT FROM 1 TO 3 INCH PER HOUR SNOWFALL
RATES THIS AFTERNOON...ALONG WITH BLOWING AND DRIFTING SNOW CAUSING
EXTREMELY HAZARDOUS TRAVEL CONDITIONS. DRIFTS BETWEEN TWO AND
THREE FEET WILL BE LIKELY...MAKING ROADS EXTREMELY DIFFICULT TO
MAINTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ012-017-018-041-042-045-046-200700-
/O.CON.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-
1222 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY. 

LIGHT TO OCCASIONALLY MODERATE SNOW WILL CONTINUE THROUGHOUT THE
AFTERNOON...WITH TOTAL ACCUMULATIONS OF 3 TO 5 INCHES EXPECTED BY 
THE TIME SNOW TAPERS OFF LATER TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

DEVOIR
000 
WWUS41 KCTP 191940
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
240 PM EST SAT DEC 19 2009

PAZ019-024>028-033>035-049>053-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-
BEDFORD-FULTON-UNION-SNYDER-MONTOUR-NORTHUMBERLAND-COLUMBIA-
240 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 AM EST SUNDAY. 

STEADY LIGHT SNOW WILL CONTINUE THROUGH THIS EVENING AN ADDITIONAL
1 OR 3 INCHES OF ACCUMULATION EXPECTED. TOTAL ACCUMULATIONS OF 4
TO 8 INCHES ARE EXPECTED ACROSS THE AREA BY THE TIME SNOW TAPERS
OFF LATER TONIGHT. THE GREATEST ACCUMULATIONS WILL BE ACROSS THE
SOUTHERN PORTION OF THE WARNING AREA...INCLUDING JOHNSTOWN...
ALTOONA AND HUNTINGDON. AREAS CLOSER TO INTERSTATE 80 INCLUDING
NORTHERN CAMBRIA...STATE COLLEGE... BELLEFONTE AND MILTON WILL BE
ON THE LOWER END OF THE 4 TO 8 INCH RANGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ064>066-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
ADAMS-YORK-LANCASTER-
240 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE SNOWFALL WILL CONTINUE THROUGH THE EARLY TO MID EVENING
HOURS...WITH STILL SOME SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR
IN SOME LOCATIONS. INCREASING NORTHEAST WINDS WILL CAUSE
CONSIDERABLE BLOWING AND DRIFTING SNOW...CREATING NEAR ZERO
VISIBILITIES AT TIMES.

THE SNOW WILL TAPER OFF EARLY SUNDAY MORNING. TOTAL SNOWFALL IS
STILL EXPECTED TO RANGE FROM 12 TO 16 INCHES OVER NORTHERN
PORTIONS OF ADAMS...YORK AND LANCASTER COUNTIES...RANGING UP TO
AROUND 20 INCHES NEAR THE MARYLAND BORDER. BLOWING SNOW WILL
CREATE DRIFTS BETWEEN TWO AND THREE FEET.

EXTREME IMPACT WILL RESULT FROM SNOWFALL RATES OF 1 TO 2 INCHES
PER HOUR THIS EVENING...COMBINED WITH THE BLOWING AND DRIFTING SNOW.
ROADS WILL BE DIFFICULT TO MAINTAIN AND TRAVEL CONDITIONS WILL BE
EXTREMELY HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063-200700-
/O.CON.KCTP.WS.W.0007.000000T0000Z-091220T1200Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
240 PM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY. 

MODERATE SNOW WILL CONTINUE INTO THIS EVENING...WHILE WINDS
PRODUCE CONSIDERABLE BLOWING AND DRIFTING SNOW AND NEAR ZERO
VISIBILITIES IN SOME AREAS. THE SNOW WILL TAPER OFF LATE
TONIGHT...WITH SNOWFALL TOTALS OF 10 TO 12 INCHES COMMON BY
MIDNIGHT OVER MUCH OF SCHUYLKILL AND NORTHERN PORTIONS OF DAUPHIN
AND PERRY COUNTIES. SNOW AMOUNTS WILL INCREASE HEADING SOUTH...
RANGING TO AROUND 20 INCHES ALONG THE MARYLAND BORDER.

EXTREME IMPACT WILL RESULT FROM 1 TO 2 INCH PER HOUR SNOWFALL
RATES LATE THIS AFTERNOON AND EVENING...ALONG WITH BLOWING AND
DRIFTING SNOW. EXTREMELY HAZARDOUS TRAVEL CONDITIONS WILL BE
ENCOUNTERED WITH DRIFTS BETWEEN TWO AND THREE FEET LIKELY...
MAKING ROADS EXTREMELY DIFFICULT TO MAINTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ012-017-018-041-042-045-046-200700-
/O.CON.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-
240 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
SUNDAY. 

LIGHT TO OCCASIONALLY MODERATE SNOW WILL CONTINUE INTO THIS EVENING...
WITH TOTAL ACCUMULATIONS OF 3 TO 5 INCHES EXPECTED BY THE TIME
SNOW TAPERS OFF LATER TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

DEVOIR
000 
WWUS41 KCTP 200111
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
811 PM EST SAT DEC 19 2009

PAZ019-025>028-049>053-200500-
/O.CAN.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
/O.EXB.KCTP.WW.Y.0042.000000T0000Z-091220T0500Z/
SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-COLUMBIA-
811 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. THE WINTER STORM WARNING HAS BEEN CANCELLED.

LIGHT SNOW WILL CONTINUE TO FALL THROUGH LATE EVENING ACROSS THE
AREA. ADDITIONAL ACCUMULATIONS BETWEEN 8 PM AND MIDNIGHT WILL BE
LESS THAN AN INCH...BRINGING TOTAL ACCUMULATIONS TO BETWEEN 3 AND
8 INCHES. THE HIGHEST TOTALS IN THE ADVISORY AREA WILL BE ACROSS
SOUTH CENTRAL PENNSYLVANIA...NEAR ALTOONA AND MT UNION. THE
LOWEST TOTALS WILL BE ALONG THE I-80 CORRIDOR...NEAR LEWISBURG AND
DANVILLE. SPOTTY LIGHT SNOW OR FLURRIES MAY LAST INTO THE EARLY
MORNING HOURS...BUT NO ADDITIONAL ACCUMULATION IS EXPECTED AFTER
MIDNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MOTORISTS
SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND OVERPASSES...WHERE
SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO NOAA WEATHER RADIO OR
YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ012-041-042-046-200215-
/O.CAN.KCTP.WW.Y.0042.000000T0000Z-091220T0700Z/
NORTHERN CLINTON-NORTHERN LYCOMING-SULLIVAN-SOUTHERN LYCOMING-
811 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

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

OCCASIONAL LIGHT SNOW OR FLURRIES WILL CONTINUE TO FALL THROUGH
AROUND MIDNIGHT. HOWEVER...LITTLE IF ANY ADDITIONAL ACCUMULATION
IS EXPECTED. 

$$

PAZ024-033>035-200500-
/O.EXT.KCTP.WS.W.0007.000000T0000Z-091220T0500Z/
CAMBRIA-SOMERSET-BEDFORD-FULTON-
811 PM EST SAT DEC 19 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

LIGHT SNOW WILL CONTINUE TO FALL THROUGH LATE EVENING ACROSS THE
AREA. ADDITIONAL ACCUMULATIONS BETWEEN 8 PM AND MIDNIGHT WILL BE
LESS THAN AN INCH...BRINGING TOTAL ACCUMULATIONS TO BETWEEN 7 AND
14 INCHES. THE HIGHEST TOTALS IN THE WARNING AREA WILL BE ALONG
THE MARYLAND BORDER...NEAR MEYERSDALE AND WARFORDSBURG. THE LOWEST
TOTALS WILL BE OVER NORTHERN CAMBRIA COUNTY NEAR PATTON AND
BARNESBORO. SPOTTY LIGHT SNOW OR FLURRIES MAY LAST INTO THE EARLY
MORNING HOURS...BUT NO ADDITIONAL ACCUMULATION IS EXPECTED AFTER
MIDNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ036-056>059-063>066-200700-
/O.EXT.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-
LANCASTER-
811 PM EST SAT DEC 19 2009

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 AM EST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 2 AM EST SUNDAY. 

SNOW WILL GRADUALLY TAPER OFF LATE THIS EVENING ACROSS THE AREA.
ADDITIONAL ACCUMULATIONS BETWEEN 8 PM AND 2 AM WILL RANGE FROM 
1 TO 3 INCHES...BRINGING TOTAL ACCUMULATIONS TO BETWEEN 7 AND 24 INCHES.
THE HIGHEST TOTALS IN THE WARNING AREA WILL BE ACROSS SOUTHERN
YORK AND LANCASTER COUNTIES. THE LOWEST TOTALS WILL BE OVER AREAS
NORTH OF I-81...INCLUDING MILLERSBURG AND SHENANDOAH. SPOTTY LIGHT
SNOW OR FLURRIES MAY LAST INTO THE EARLY MORNING HOURS...BUT NO
ADDITIONAL ACCUMULATION IS EXPECTED AFTER 2 AM.

A GUSTY NORTHWEST WIND WILL CREATE CONSIDERABLE BLOWING AND
DRIFTING OF SNOW THROUGH THE NIGHT...MAINLY IN OPEN...EXPOSED
LOCATIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS A SIGNIFICANT AMOUNT
OF SNOW IS FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST
TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKET AND A CELLULAR
PHONE IN YOUR VEHICLE IN CASE OF AN EMERGENCY. STAY TUNED TO NOAA
WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR
THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$

PAZ017-018-045-200500-
/O.EXT.KCTP.WW.Y.0042.000000T0000Z-091220T0500Z/
CLEARFIELD-NORTHERN CENTRE-SOUTHERN CLINTON-
811 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

LIGHT SNOW WILL CONTINUE TO FALL THROUGH LATE EVENING ACROSS THE
AREA. ADDITIONAL ACCUMULATIONS BETWEEN 8 PM AND MIDNIGHT WILL BE
LESS THAN AN INCH...BRINGING TOTAL ACCUMULATIONS TO BETWEEN 3 AND
5 INCHES. THE HIGHEST TOTALS IN THE ADVISORY AREA WILL BE ACROSS
SOUTHERN CLEARFIELD COUNTY...NEAR GLEN HOPE. THE LOWEST TOTALS
WILL BE NORTH OF I-80. SPOTTY LIGHT SNOW OR FLURRIES MAY LAST
INTO THE EARLY MORNING HOURS...BUT NO ADDITIONAL ACCUMULATION IS
EXPECTED AFTER MIDNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS ON BRIDGES AND
OVERPASSES...WHERE SLIPPERY SPOTS DEVELOP FIRST. STAY TUNED TO
NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION
FOR THE LATEST UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT...
WEATHER.GOV/STATECOLLEGE.

&&

$$
000 
WWUS41 KCTP 200345
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1045 PM EST SAT DEC 19 2009

.LOW PRESSURE IS PULLING AWAY FROM THE REGION...CAUSING SNOW TO
END. 

PAZ036-056>059-063>066-200445-
/O.CAN.KCTP.WS.W.0007.000000T0000Z-091220T0700Z/
FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-ADAMS-YORK-
LANCASTER-
1045 PM EST SAT DEC 19 2009

...WINTER STORM WARNING IS CANCELLED...

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

OCCASIONAL LIGHT SNOW OR FLURRIES WILL LAST INTO THE EARLY MORNING
HOURS. HOWEVER...NO MORE THAN AN ADDITIONAL DUSTING IS EXPECTED. A
GUSTY NORTHWEST WIND WILL PRODUCE SOME BLOWING AND DRIFTING...MAINLY
IN EXPOSED LOCATIONS.

$$

PAZ024-033>035-200445-
/O.CAN.KCTP.WS.W.0007.000000T0000Z-091220T0500Z/
CAMBRIA-SOMERSET-BEDFORD-FULTON-
1045 PM EST SAT DEC 19 2009

...WINTER STORM WARNING IS CANCELLED...

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

OCCASIONAL LIGHT SNOW OR FLURRIES WILL LAST INTO THE EARLY MORNING
HOURS. HOWEVER...NO MORE THAN AN ADDITIONAL DUSTING IS EXPECTED. 
 
$$

PAZ017>019-025>028-045-049>053-200445-
/O.CAN.KCTP.WW.Y.0042.000000T0000Z-091220T0500Z/
CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-HUNTINGDON-
MIFFLIN-JUNIATA-SOUTHERN CLINTON-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-
1045 PM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

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

OCCASIONAL LIGHT SNOW OR FLURRIES WILL LAST INTO THE EARLY MORNING
HOURS. HOWEVER...NO MORE THAN AN ADDITIONAL DUSTING IS EXPECTED. 

$$

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 18, 2:37 PM EST, 1 minute earlier.

Area forecast discussion, Dec 18, 2:37 PM EST, 1 minute before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
237 PM EST FRI DEC 18 2009

.SYNOPSIS...
A STRONG STORM SYSTEM WILL MOVE UP THE EASTERN SEABOARD TONIGHT
AND SATURDAY. THIS STORM WILL PRODUCE HEAVY SNOW FOR SOUTHEASTERN
PENNSYLVANIA ON SATURDAY BEFORE MOVING OFF THE COAST. A
PERSISTENT UPPER LOW NORTH OF PENNSYLVANIA SHOULD THEN KEEP THE
REGION SEASONABLY COLD THROUGH THE MIDDLE OF NEXT WEEK. ANOTHER
STORM IS POSSIBLE LATE NEXT WEEK...BUT MUCH UNCERTAINTY REMAINS
AT THAT RANGE.

&&

.NEAR TERM /UNTIL MIDNIGHT TONIGHT/...
DRY NERLY FLOW POLEWARD OF THE DEEPENING CYCLONE ON THE SE COAST
WILL CONTINUE TO DRY IT OUT IN THE LLVLS THIS EVENING. DENSE
HIGHER CLOUDS OF THE NORTHERN EDGE OF THE STORM ARE ALREADY
COVERING THE SWRN HALF OF THE REGION. EXPECT ONLY A MINOR INCREASE
IN HIGHER CLOUDS THIS EVENING ACROSS THE NE.

&&

.SHORT TERM /MIDNIGHT TONIGHT THROUGH SATURDAY NIGHT/...
MAIN FOCUS OF THE ENTIRE FORECAST IS THIS PERIOD. MAJOR WINTER
STORM WILL IMPACT THE SRN/SERN PORTIONS OF OUR FCST/WARNING AREA
THRU SAT EVENING. CENTER OF CIRCULATION LOOKS SIMILAR TO RUNS OF
PREVIOUS DAYS...AND HAS LEAD TO INCREASING CONFIDENCE IN THE
FORECAST. THUS...WILL BE POSTING WARNINGS AND ADVISORIES WITH THIS
AFTN PKG. HAVE SEEN JUST ABOUT ALL OF THE MDL GUIDANCE THAT I CAN
HANDLE AS I AM ON THE EDGE OF DATA OVERLOAD. MAIN FACTORS IN THE
DECISIONS ON THE WWA PRODUCTS WERE THE OVERWHELMINGLY GOOD
AGREEMENT BETWEEN MOST MDLS AND ENSEMBLE MEMBERS AT THIS
RANGE AND THE CLIMATOLOGICAL/HISTORICAL NORMS IN A STORM OF THIS
TRACK. TRACK RUNS FROM KHAT AT 12Z SAT TO A POSITION ABOUT 200SM
SE OF KACK AT 12Z SUN. THUS...WITH A SHORT AMOUNT OF TIME THAT THE
HEAVIEST SNOW WILL BE HERE - GENERALLY 10-12 HRS - AND THE
DISTANCE FROM THE 7H LOW...WILL KEEP HEAVIEST AMTS ALONG THE SRN
BORDER AND MAINLY EAST OF BLUE MTN. EXPECT PORTIONS OF LANCASTER
CO TO GET UP TO 10 INCHES OF SNOW BY LATE SAT NIGHT. BUT...MUCH OF
THE AREA NORTH OF I-80 COULD HARDLY GET A DUSTING.

THE SF AMOUNTS WE PAINTED WERE BASED ON SNOW-WATER EQUIVALENTS
BETWEEN 10:1 AND 12:1 BECAUSE THE BEST UPLIFT IS DISPLACED TOO FAR
UP IN THE COLUMN FOR DENDRITIC SNOW GROWTH...AND THE FACT THAT THE
DRY AIR AT THE SFC COULD SIGNIFICANTLY DELAY THE ONSET OF ACCUM
SNOW UNTIL LATER IN THE MORNING IN THE SUSQ VLY. SF DURING THE
MIDDLE OF THE DAY IS USUALLY TOUGH TO GET BIG/FAST ACCUMS AS
WELL...BUT WE ARE AT THE SHORTEST DAYS/LOWEST SUN ANGLES OF ALL
RIGHT NOW. BEST BANDED PRECIP WILL MOST LIKELY STAY TO OUR SE...IN
MD/FAR SE PA/NJ AS HIGHEST 7H FG FORCING IS HELD THERE BY THE MESO
MDLS. ALSO...THE OROGRAPHIC ENHANCEMENTS THAT THE PEAKS IN
SOMERSET CO AND THE HIGHER TERRAIN OF SCHUYLKILL CO SHOULD ADD TO
THE TOTALS THERE...ESP IF PRECIP LINGERS LATE INTO SAT NIGHT IN
THE POCONOS.

TRAVEL WILL MOST LIKELY BE MOST DIFFICULT DURING THE DAYLIGHT HRS
ON SATURDAY ALONG THE SRN BORDER. WITH THE POTENTIAL FOR 15:1
RATIOS IN THE CENTRAL COS...HAVE DECIDED TO KEEP ADVSRY TYPE
ACCUMS...BUT LACK OF QPF AND POOR SNOW PHYSICS COULD FURTHER
DECREASE WHAT IS IN THE FCST ATTM.

AS THE LOW PULLS AWAY SAT NIGHT...EXPECT PRECIP TO DWINDLE FASTEST
IN THE CENTRAL MTS. SO...WILL END ADVSRYS/WARNINGS THERE JUST AFT
MIDNIGHT SAT NIGHT. REST OF WWAS WILL RUN INTO SUN AM. BUT...THE
BULK OF THE SF WILL BE DURING THE DAY SAT.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
PATTERN GETS EXTREMELY QUIET FOR SEVERAL DAYS BEGINNING ON
SUNDAY...AFTER THE PRESENT MID ATLANTIC SNOW STORM DEPARTS LATE
SATURDAY NIGHT. THE EARLY PORTION OF NEXT WEEK WILL HAVE PREDOMINANT
NORTH TO NORTHWEST FLOW WITH THE TYPICAL LAKE CLOUDINESS AND SOME
LIGHT SNOW SHOWER AND FLURRY ACTIVITY TO ACCOMPANY IT...ALONG WITH
SLIGHTLY BELOW NORMAL TEMPERATURES.

BY THE MIDDLE TO END OF THE WEEK...TEMPERATURES WILL MODERATE
SLIGHTLY AHEAD OF A COMPLEX STORM SYSTEM WHICH MAY AFFECT THE REGION
CHRISTMAS EVE INTO CHRISTMAS DAY. GIVEN THE TIME RANGE...AS WELL AS
THE WIDE RANGE OF SOLUTIONS EVIDENT IN MEDIUM RANGE MODELS... HAVE
OPTED TO BROADBRUSH MIXED PRECIPITATION CHANCES IN THE FORM OF RAIN
OR SNOW FOR THIS TIMEFRAME. INTERNAL AND EXTERNAL CONSISTENCY HAS
BEEN NON-EXISTENT IN MEDIUM RANGE MODELS HANDLING OF THE SITUATION
BUT ALL AGREE TO SOME EXTENT OF ANOTHER PERIOD OF UNSETTLED AND
POTENTIALLY WINTRY WEATHER FOR CHRISTMAS EVE AND DAY.

&&

.AVIATION /20Z FRIDAY THROUGH WEDNESDAY/...
WIDESPREAD VFR EXPECTED TO CONTINUE INTO THE EVENING. TAFS REFLECT
CONDITIONS SLOWLY FALLING TO MVFR/IFR FOR ALL AIRFIELDS DURING
THE FORECAST PERIOD...AS APRROACHING SNOWSTORM WILL DROP CIGS AND
VIS FOR ALL AIRFIELDS AFTER 4Z. LIGHT TO MODERATE SNOWFALL
EXPECTED TO CONTINUE FOR MUCH OF THE DAY SATURDAY...KEEPING CIGS
AND VIS IN THE IFR/MVFR RANGE ESPECIALLY FOR KMDT. WHITEOUT
CONDITIONS CERTAINLY A POSSIBILITY AT TIMES TOMORROW
AFTERNOON...ONCE AGAIN ESPECIALLY FOR KMDT...IN HEAVIER SNOW
BANDS.

OUTLOOK...
SAT NIGHT...IFR S/CENT. VFR ALONG THE NY BORDER.
SUN...MAILY VFR.
MON-TUE...MVFR NW...VFR ELSEWHERE.
WED...MAINLY VFR.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING FROM 4 AM SATURDAY TO 7 AM EST SUNDAY FOR
PAZ036-056>059-063>066.
WINTER STORM WARNING FROM 4 AM SATURDAY TO 2 AM EST SUNDAY FOR
PAZ033.
WINTER WEATHER ADVISORY FROM 4 AM SATURDAY TO 2 AM EST SUNDAY
FOR PAZ019-024>028-034-035-049>053.

&&

SYNOPSIS...DANGELO
NEAR TERM...DANGELO
SHORT TERM...DANGELO
LONG TERM...DEVOIR
AVIATION...DANGELO/DICKEY
Hazardous weather outlook, Dec 18, 11:28 AM EST, 3 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1128 AM EST FRI DEC 18 2009

PAZ012-017>019-025>028-041-042-045-046-049>053-191630-
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-
HUNTINGDON-MIFFLIN-JUNIATA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-
1128 AM EST FRI DEC 18 2009

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

  WINTER STORM WATCH.

STORM TOTALS OF 4 TO 7 INCHES ARE EXPECTED DEPENDING ON THE
FLUFFINESS OF THE SNOW AND DURATION OF THE HEAVIEST SNOW. MOST OF
THE SNOW WILL FALL DURING THE DAYLIGHT HOURS ON SATURDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WINTER STORM WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

PAZ004>006-010-011-037-191630-
WARREN-MCKEAN-POTTER-ELK-CAMERON-TIOGA-
1128 AM EST FRI DEC 18 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THE PROBABILITY FOR WIDESPREAD SEVERE WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

PAZ024-033>036-056>059-063>066-191630-
CAMBRIA-SOMERSET-BEDFORD-FULTON-FRANKLIN-PERRY-DAUPHIN-SCHUYLKILL-
LEBANON-CUMBERLAND-ADAMS-YORK-LANCASTER-
1128 AM EST FRI DEC 18 2009

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WINTER STORM WATCH.

STORM TOTALS OF 6 TO 8 INCHES ARE EXPECTED DEPENDING ON THE
FLUFFINESS OF THE SNOW AND DURATION OF THE HEAVIEST SNOW. MOST OF
THE SNOW WILL FALL DURING THE DAYLIGHT HOURS AND EARLY EVENING OF
SATURDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WINTER STORM WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

DANGELO

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 10:08 PM ESTWinter Storm WatchCTPAdams, Bedford, Blair, Cambria, Centre, Clearfield and 21 more17 hr
Dec 18, 2:38 PM ESTWinter Weather AdvisoryCTPBedford, Blair, Cambria, Centre, Clearfield, Clinton and 11 more32 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2009Every winter storm warning in 2009

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.