Alert archive / Pennsylvania / Winter Storm Warnings in 2008

Winter Storm Warning 7, NWS State College, PA

November 20, 2008Cambria County, Somerset County, Pennsylvania

NWS State College, PA issued this winter storm warning at Nov 20, 2008, 5:39 AM EST for Cambria County, Somerset County, Pennsylvania. It took effect at Nov 20, 2008, 6:00 PM EST. It was in force for 24 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
Nov 20, 2008, 5:39 AM EST (10:39 UTC)
In effect from
Nov 20, 2008, 6:00 PM EST
Expired
Nov 21, 2008, 6:00 PM EST
In force
24 hr
Issued by
NWS State College, PA

Counties Cambria County, PA, Somerset County, PA

The radar

The State College radar (KCCX), 106 km from the middle of the area, began a volume at 10:39 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

Pittsburgh, PA (KPIT), launched 00:00Z, 10.7 hours before the alert went out and 106 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, Pittsburgh, PA at 00:00Z on 2008-11-20Temperature 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, Pittsburgh, PA at 00:00Z on 2008-11-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
1103 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
310 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 201039
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
539 AM EST THU NOV 20 2008

...SIGNIFICANT LAKE EFFECT OVER THE ALLEGHENIES...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS TODAY THROUGH SATURDAY. 

PAZ004-202245-
/O.UPG.KCTP.LE.A.0004.081120T2300Z-081122T1100Z/
/O.NEW.KCTP.LE.W.0003.081120T1200Z-081122T2300Z/
WARREN-
539 AM EST THU NOV 20 2008

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 6 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A LAKE
EFFECT SNOW WARNING...WHICH IS IN EFFECT UNTIL 6 PM EST SATURDAY.
THE LAKE EFFECT SNOW WATCH IS NO LONGER IN EFFECT. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA TODAY THROUGH SATURDAY. THE SNOW THAT FALLS
TODAY AND TONIGHT SHOULD BE GENERALLY LIGHT. HOWEVER...3 TO 6
INCHES OF ACCUMULATION ARE EXPECTED BY LATE TONIGHT...WITH THE
HIGHEST AMOUNTS ACROSS NORTHWEST WARREN COUNTY. A LULL IN THE SNOW
SHOWERS IS EXPECTED LATE TONIGHT THROUGH FRIDAY AFTERNOON...AS
WINDS SHIFT THE HEAVIEST SNOW SOUTH OF THE AREA. HOWEVER...ADDITIONAL
SIGNIFICANT ACCUMULATIONS ARE EXPECTED FRIDAY NIGHT AND SATURDAY.
LAKE EFFECT SNOWS WILL FINALLY TAPER OFF LATE SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE EFFECT
SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE EFFECT
SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN A LARGER
AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER HOUR ARE
LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY GREATLY AND CAN
DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-202245-
/O.UPG.KCTP.WS.A.0008.081120T2300Z-081121T2300Z/
/O.NEW.KCTP.WS.W.0007.081120T2300Z-081121T2300Z/
CAMBRIA-SOMERSET-
539 AM EST THU NOV 20 2008

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM EST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

A COLD NORTHWEST FLOW WILL PICK UP MOISTURE FROM THE GREAT
LAKES...THEN DEPOSIT IT AS SNOW OVER THE ALLEGHENY HIGHLANDS
TONIGHT AND FRIDAY. THE HEAVIEST SNOW SHOULD PUSH NORTH OF THE
REGION BY LATE FRIDAY...AS WINDS SHIFT. ACCUMULATIONS BY LATE
FRIDAY SHOULD RANGE FROM 4 TO 8 INCHES...WITH THE HIGHEST AMOUNTS
ALONG THE RIDGETOPS.

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.

$$

PAZ005-202245-
/O.NEW.KCTP.LE.W.0003.081120T1200Z-081122T2300Z/
MCKEAN-
539 AM EST THU NOV 20 2008

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 6 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A LAKE
EFFECT SNOW WARNING...WHICH IS IN EFFECT UNTIL 6 PM EST SATURDAY.

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA TODAY THROUGH SATURDAY. THE SNOW THAT FALLS
TODAY AND TONIGHT SHOULD BE GENERALLY LIGHT. HOWEVER...3 TO 6
INCHES OF ACCUMULATION ARE EXPECTED BY LATE TONIGHT...WITH THE
HIGHEST AMOUNTS ACROSS NORTHWEST WARREN COUNTY. A LULL IN THE SNOW
SHOWERS IS EXPECTED LATE TONIGHT THROUGH FRIDAY AFTERNOON...AS
WINDS SHIFT THE HEAVIEST SNOW SOUTH OF THE AREA. HOWEVER...ADDITIONAL
SIGNIFICANT ACCUMULATIONS ARE EXPECTED FRIDAY NIGHT AND SATURDAY.
LAKE EFFECT SNOWS WILL FINALLY TAPER OFF LATE SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE EFFECT
SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE EFFECT
SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN A LARGER
AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER HOUR ARE
LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY GREATLY AND CAN
DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL... KEEP AN EXTRA
FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ010-011-017-202245-
/O.NEW.KCTP.WW.Y.0014.081120T1600Z-081121T1200Z/
ELK-CAMERON-CLEARFIELD-
539 AM EST THU NOV 20 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO
7 AM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 11 AM THIS
MORNING TO 7 AM EST FRIDAY.

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA TODAY AND TONIGHT. ACCUMULATIONS BY EARLY
FRIDAY MORNING SHOULD RANGE FROM 2 TO 4 INCHES OVER MUCH OF THE
AREA. A LULL IN THE SNOW SHOWERS IS EXPECTED DURING MOST OF
FRIDAY. HOWEVER...ADDITIONAL ACCUMULATIONS ARE EXPECTED FRIDAY
NIGHT INTO SATURDAY. 

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.

$$
6 follow-up statements
000 
WWUS41 KCTP 201538
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1038 AM EST THU NOV 20 2008

...SIGNIFICANT LAKE EFFECT SNOW OVER THE ALLEGHENIES...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS TODAY THROUGH SATURDAY.

PAZ004-005-210345-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
1038 AM EST THU NOV 20 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA THROUGH SATURDAY. THE SNOW THAT FALLS THIS
AFTERNOON AND TONIGHT SHOULD BE GENERALLY LIGHT. HOWEVER...3 TO 6
INCHES OF ACCUMULATION ARE EXPECTED BY LATE TONIGHT...WITH THE
HIGHEST AMOUNTS ACROSS NORTHWEST WARREN COUNTY. A LULL IN THE SNOW
SHOWERS IS EXPECTED LATE TONIGHT THROUGH FRIDAY AFTERNOON... AS
WINDS SHIFT THE HEAVIEST SNOW SOUTH OF THE AREA. HOWEVER...
ADDITIONAL SIGNIFICANT ACCUMULATIONS ARE EXPECTED FRIDAY NIGHT AND
SATURDAY. LAKE EFFECT SNOWS WILL FINALLY TAPER OFF LATE SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN
A LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-210345-
/O.CON.KCTP.WS.W.0007.081120T2300Z-081121T2300Z/
CAMBRIA-SOMERSET-
1038 AM EST THU NOV 20 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM EST FRIDAY. 

A COLD NORTHWEST FLOW WILL PICK UP MOISTURE FROM THE GREAT
LAKES...THEN DEPOSIT IT AS SNOW OVER THE LAUREL HIGHLANDS TONIGHT
AND FRIDAY. THE HEAVIEST SNOW SHOULD PUSH NORTH OF THE REGION BY
LATE FRIDAY...AS WINDS SHIFT. ACCUMULATIONS BY LATE FRIDAY SHOULD
RANGE FROM 4 TO 8 INCHES...WITH THE HIGHEST AMOUNTS ALONG THE
RIDGETOPS.

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.

$$

PAZ010-011-017-210345-
/O.CON.KCTP.WW.Y.0014.081120T1600Z-081121T1200Z/
ELK-CAMERON-CLEARFIELD-
1038 AM EST THU NOV 20 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
FRIDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA THIS AFTERNOON AND THROUGH THE NIGHT.
ACCUMULATIONS BY EARLY FRIDAY MORNING SHOULD RANGE FROM 2 TO 4
INCHES OVER MUCH OF THE AREA. A LULL IN THE SNOW SHOWERS IS
EXPECTED DURING MOST OF FRIDAY. HOWEVER...ADDITIONAL ACCUMULATIONS
ARE EXPECTED FRIDAY NIGHT INTO SATURDAY.

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.

$$

DANGELO
000 
WWUS41 KCTP 202000
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
300 PM EST THU NOV 20 2008

...SIGNIFICANT LAKE EFFECT SNOW OVER THE ALLEGHENIES...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS THROUGH SATURDAY.

PAZ004-005-210800-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
300 PM EST THU NOV 20 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA THROUGH SATURDAY. THE SNOW TONIGHT WILL BE
HEAVIEST IN THE EVENING...BUT THE HEAVIEST OF THE BANDS MAY MOVE
TO THE SOUTH OF THE AREA BY SUNRISE FRIDAY. HOWEVER...ANOTHER 4
TO 6 INCHES OF ACCUMULATION ARE EXPECTED BY LATE TONIGHT...WITH
THE HIGHEST AMOUNTS ACROSS WESTERN WARREN COUNTY. A LULL IN THE
SNOW SHOWERS IS EXPECTED LATE TONIGHT THROUGH FRIDAY AFTERNOON...
AS WINDS SHIFT THE HEAVIEST SNOW SOUTH OF THE AREA. HOWEVER...
ADDITIONAL SIGNIFICANT ACCUMULATIONS WILL RETURN FOR FRIDAY NIGHT
AND SATURDAY. LAKE EFFECT SNOWS WILL FINALLY TAPER OFF LATE
SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN
A LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-210800-
/O.CON.KCTP.WS.W.0007.081120T2300Z-081121T2300Z/
CAMBRIA-SOMERSET-
300 PM EST THU NOV 20 2008

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM EST FRIDAY. 

A COLD NORTHWEST FLOW OF AIR ACROSS THE GREAT LAKES WILL PICK UP
MOISTURE AND DEPOSIT IT AS SNOW OVER THE LAUREL HIGHLANDS TONIGHT
AND FRIDAY. THE HEAVIEST SNOW WILL MOST LIKELY BE AFTER MIDNIGHT
TONIGHT AND THROUGH NOON ON FRIDAY. ACCUMULATIONS OF 6 TO 10 INCHES
ARE EXPECTED BY MIDDAY FRIDAY. THE ACCUMULATIONS WILL BE HEAVIEST
ON THE WEST-FACING SLOPES AND HILL TOPS. THE HEAVIEST OF THE SNOW
WILL THEN LIFT BACK TO THE NORTH OF THE REGION LATE IN THE DAY ON
FRIDAY AS THE WINDS SHIFT AGAIN.

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.

$$

PAZ010-011-017-210800-
/O.EXT.KCTP.WW.Y.0014.000000T0000Z-081121T2300Z/
ELK-CAMERON-CLEARFIELD-
300 PM EST THU NOV 20 2008

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM EST FRIDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 6 PM EST
FRIDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA THROUGH THE NIGHT...AND INTO THE DAY ON
FRIDAY. THE SNOW SQUALLS ON FRIDAY MAY CREATE NEAR WHITE-OUT
CONDITIONS FOR BRIEF TIMES. SNOW ACCUMULATIONS BY FRIDAY AFTERNOON
SHOULD RANGE FROM 3 TO 5 INCHES OVER MUCH OF THE AREA. 

ADDITIONAL ACCUMULATIONS ARE POSSIBLE FRIDAY NIGHT AND
SATURDAY...BUT THE SNOW SHOULD BE LIGHTER THAN DURING THE NEXT 24
HOURS.

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.

$$

PAZ006-210800-
/O.NEW.KCTP.WS.A.0009.081121T2300Z-081122T2300Z/
POTTER-
300 PM EST THU NOV 20 2008

...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY AFTERNOON. 

COLD AIR WILL BE CROSSING THE GREAT LAKES AND WILL PICK UP
MOISTURE AND CREATE NUMEROUS SNOW SHOWERS. THE WINDS WILL BECOME
MORE FAVORABLE TO CARRY HEAVY SNOW INTO POTTER COUNTY ON FRIDAY
NIGHT AND SATURDAY. THE POTENTIAL EXISTS FOR MANY LOCATIONS TO
PICK UP 6 OR MORE INCHES OF SNOW DURING THAT TIME.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. 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.

$$

DANGELO
000 
WWUS41 KCTP 210420
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1120 PM EST THU NOV 20 2008

...SIGNIFICANT LAKE EFFECT SNOW OVER THE ALLEGHENIES...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS THROUGH SATURDAY.

PAZ004-005-211500-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
1120 PM EST THU NOV 20 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA THROUGH SATURDAY. A LULL IN THE SNOW SHOWERS
IS EXPECTED FOR A PORTION OF THE OVERNIGHT THROUGH FRIDAY AFTERNOON... 
AS WINDS SHIFT THE HEAVIEST SNOW SOUTH OF THE AREA. HOWEVER...
ADDITIONAL SIGNIFICANT ACCUMULATIONS WILL RETURN FOR FRIDAY NIGHT
AND SATURDAY. LAKE EFFECT SNOWS WILL FINALLY TAPER OFF LATE
SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN
A LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...
 KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-211500-
/O.CON.KCTP.WS.W.0007.000000T0000Z-081121T2300Z/
CAMBRIA-SOMERSET-
1120 PM EST THU NOV 20 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST FRIDAY. 

A COLD NORTHWEST FLOW OF AIR ACROSS THE GREAT LAKES WILL PICK UP
MOISTURE AND DEPOSIT IT AS SNOW OVER THE LAUREL HIGHLANDS THROUGH
FRIDAY. THE HEAVIEST SNOW WILL FALL AFTER MIDNIGHT AND LAST
THROUGH NOON ON FRIDAY. ACCUMULATIONS OF 6 TO 10 INCHES ARE
EXPECTED BY MIDDAY FRIDAY. THE ACCUMULATIONS WILL BE HEAVIEST ON
THE WEST FACING SLOPES AND HILL TOPS. THE HEAVIEST OF THE SNOW
WILL THEN LIFT BACK TO THE NORTH OF THE REGION LATE IN THE DAY ON
FRIDAY AS THE WINDS SHIFT AGAIN.

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.

$$

PAZ018-019-045-049>052-058-211500-
/O.EXB.KCTP.WW.Y.0014.000000T0000Z-081121T1500Z/
NORTHERN CENTRE-SOUTHERN CENTRE-SOUTHERN CLINTON-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-SCHUYLKILL-
1120 PM EST THU NOV 20 2008

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 10 AM EST
FRIDAY.

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA OVERNIGHT AND INTO THE DAY ON FRIDAY. IN
ADDITION...SNOW SQUALLS ON FRIDAY MAY CREATE NEAR WHITE-OUT
CONDITIONS FOR BRIEF TIMES. SNOW ACCUMULATIONS BY FRIDAY AFTERNOON
SHOULD RANGE FROM 3 TO 6 INCHES OVER MUCH OF THE AREA.

ADDITIONAL ACCUMULATIONS ARE POSSIBLE FRIDAY NIGHT AND SATURDAY...
BUT THE SNOW SHOULD BE LIGHTER THAN DURING THE NEXT 24 HOURS.

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.

$$

PAZ010-011-017-211500-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-081121T2300Z/
ELK-CAMERON-CLEARFIELD-
1120 PM EST THU NOV 20 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
FRIDAY. 

COLD AIR CROSSING OVER THE GREAT LAKES WILL PRODUCE PERIODS OF
SNOW ACROSS THE AREA OVERNIGHT AND INTO THE DAY ON FRIDAY. THE
SNOW SQUALLS ON FRIDAY MAY CREATE NEAR WHITE- OUT CONDITIONS FOR
BRIEF TIMES. SNOW ACCUMULATIONS BY FRIDAY AFTERNOON SHOULD RANGE
FROM 3 TO 6 INCHES OVER MUCH OF THE AREA.

ADDITIONAL ACCUMULATIONS ARE POSSIBLE FRIDAY NIGHT AND SATURDAY...
BUT THE SNOW SHOULD BE LIGHTER THAN DURING THE NEXT 24 HOURS.

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.

$$

PAZ006-211500-
/O.CON.KCTP.WS.A.0009.081121T2300Z-081122T2300Z/
POTTER-
1120 PM EST THU NOV 20 2008

...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING
THROUGH SATURDAY AFTERNOON. 

COLD AIR WILL BE CROSSING THE GREAT LAKES AND WILL PICK UP
MOISTURE AND CREATE NUMEROUS SNOW SHOWERS. THE WINDS WILL BECOME
MORE FAVORABLE TO CARRY HEAVY SNOW INTO POTTER COUNTY ON FRIDAY
NIGHT AND SATURDAY. THE POTENTIAL EXISTS FOR MANY LOCATIONS TO
PICK UP 6 OR MORE INCHES OF SNOW DURING THAT TIME.

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. 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/MARTIN
000 
WWUS41 KCTP 211131
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
631 AM EST FRI NOV 21 2008

...SIGNIFICANT LAKE EFFECT SNOW OVER THE ALLEGHENIES...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS THROUGH SATURDAY.

PAZ018-019-045-049>052-058-211245-
/O.CAN.KCTP.WW.Y.0014.000000T0000Z-081121T1500Z/
NORTHERN CENTRE-SOUTHERN CENTRE-SOUTHERN CLINTON-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-SCHUYLKILL-
631 AM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY IS CANCELLED...

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

$$

PAZ004-005-212345-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
631 AM EST FRI NOV 21 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

PERIODS OF LAKE EFFECT SNOW SHOWERS WILL CONTINUE ACROSS THE AREA
THROUGH TONIGHT AND INTO SATURDAY...BEFORE GRADUALLY TAPERING OFF
LATE SATURDAY NIGHT. 

ACCUMULATIONS WILL GENERALLY RANGE FROM 5 TO 10 INCHES THROUGH
TONIGHT. 

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN
A LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-212300-
/O.CON.KCTP.WS.W.0007.000000T0000Z-081121T2300Z/
CAMBRIA-SOMERSET-
631 AM EST FRI NOV 21 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON. 

SNOW SHOWERS WILL CONTINUE ACROSS THE LAUREL HIGHLANDS
TODAY...WITH ACCUMULATIONS OF 6 TO 10 INCHES BY THIS EVENING. THE
ACCUMULATIONS WILL BE HEAVIEST ON THE WEST FACING SLOPES AND HILL
TOPS.

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.

$$

PAZ006-212345-
/O.UPG.KCTP.WS.A.0009.081121T2300Z-081122T2300Z/
/O.NEW.KCTP.WW.Y.0015.081121T2300Z-081122T2300Z/
POTTER-
631 AM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM EST SATURDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

PERIODS OF LAKE EFFECT SNOW SHOWERS ARE EXPECTED ACROSS POTTER
COUNTY FROM TODAY INTO SATURDAY. THE SNOW MAY BE LOCALLY
HEAVY IN SQUALLS. 

ACCUMULATIONS WILL GENERALLY RANGE BETWEEN 3 AND 6 INCHES BY
SATURDAY EVENING.

$$

PAZ010-011-017-212300-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-081121T2300Z/
ELK-CAMERON-CLEARFIELD-
631 AM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON. 

PERIODS OF LAKE EFFECT SNOW SHOWERS WILL CONTINUE ACROSS THE
ALLEGHENIES TODAY. THE SNOW MAY BE LOCALLY HEAVY IN SQUALLS.
ACCUMULATIONS WILL GENERALLY RANGE BETWEEN 3 AND 6 INCHES BY
THIS EVENING.

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.

$$

STEINBUGL/JL
000 
WWUS41 KCTP 211606
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1106 AM EST FRI NOV 21 2008

...SIGNIFICANT LAKE EFFECT SNOW WILL CONTINUE...

.A COLD NORTHWEST FLOW WILL BRING PERIODS OF LAKE EFFECT SNOW TO
THE ALLEGHENY HIGHLANDS THROUGH SATURDAY.

PAZ004-005-220415-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
1106 AM EST FRI NOV 21 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

PERIODS OF LAKE EFFECT SNOW SHOWERS WILL CONTINUE ACROSS THE AREA
THROUGH SATURDAY...BEFORE GRADUALLY TAPERING OFF LATE SATURDAY
NIGHT.

NEW ACCUMULATIONS WILL GENERALLY RANGE FROM 5 TO 10 INCHES THIS
AFTERNOON AND TONIGHT. ANOTHER 3 TO 5 INCHES COULD FALL SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN A
LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY GREATLY
AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...KEEP AN
EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-212300-
/O.CON.KCTP.WS.W.0007.000000T0000Z-081121T2300Z/
CAMBRIA-SOMERSET-
1106 AM EST FRI NOV 21 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON. 

SNOW SHOWERS WILL CONTINUE ACROSS THE LAUREL HIGHLANDS TODAY...
WITH ADDITIONAL ACCUMULATIONS OF 2 TO 3 INCHES THIS AFTERNOON AND
THIS EVENING. THE ACCUMULATIONS WILL BE HEAVIEST ON THE WEST
FACING SLOPES AND HILL TOPS. THE SNOW WILL TAPER OFF A BIT THIS
EVENING...BUT ANOTHER COUPLE OF INCHES ARE POSSIBLE TONIGHT AND
SATURDAY.

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.

$$

PAZ010-011-017-212300-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-081121T2300Z/
ELK-CAMERON-CLEARFIELD-
1106 AM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON. 

PERIODS OF SNOW WILL CONTINUE ACROSS THE ALLEGHENIES THIS
AFTERNOON...BUT WILL TAPER LATE THIS AFTERNOON AND EVENING.
ADDITIONAL ACCUMULATIONS WILL BE AROUND AN INCH OR TWO BY 6 PM.

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.

$$

PAZ006-220415-
/O.CON.KCTP.WW.Y.0015.081121T2300Z-081122T2300Z/
POTTER-
1106 AM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM EST SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM EST SATURDAY. 

LIGHT SNOW OVER POTTER COUNTY THIS AFTERNOON MAY TAPER OFF FOR A
BRIEF TIME BEFORE INTENSIFYING AGAIN DURING THE EVENING HOURS.
ADDITIONAL ACCUMULATIONS COULD REACH 3 TO 5 INCHES OVERNIGHT
THROUGH SATURDAY.

$$

DANGELO/RXR
000 
WWUS41 KCTP 212002
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
302 PM EST FRI NOV 21 2008

...SIGNIFICANT LAKE EFFECT SNOW WILL DIMINISH SLOWLY...

.A COLD NORTHWEST FLOW WILL CONTINUE TO MAKE LAKE EFFECT SNOW OVER
THE ALLEGHENY HIGHLANDS THROUGH SATURDAY.

PAZ017-212115-
/O.CAN.KCTP.WW.Y.0014.000000T0000Z-081121T2300Z/
CLEARFIELD-
302 PM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SNOW SHOWERS WILL CONTINUE THROUGH THE DAY ON SATURDAY...BUT THE
POTENTIAL FOR SIGNIFICANT ACCUMULATIONS HAS ENDED.

$$

PAZ004-005-220815-
/O.CON.KCTP.LE.W.0003.000000T0000Z-081122T2300Z/
WARREN-MCKEAN-
302 PM EST FRI NOV 21 2008

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EST
SATURDAY. 

OCCASIONAL LAKE EFFECT SNOW SHOWERS WILL CONTINUE ACROSS THE AREA
THROUGH THE NIGHT AND ALL OF SATURDAY...BEFORE GRADUALLY TAPERING
OFF BY SATURDAY NIGHT.

THE SNOWFALL THROUGH THE NEXT 24 HOURS WILL BE A LITTLE LIGHTER
THAN IT HAS BEEN THE PAST 24 HOURS. NEW ACCUMULATIONS WILL
GENERALLY RANGE FROM 3 TO 6 INCHES OVERNIGHT...WITH ANOTHER 4 TO
6 INCHES COULD FALL ON SATURDAY.

A LAKE EFFECT SNOW WARNING MEANS SIGNIFICANT AMOUNTS OF LAKE
EFFECT SNOW ARE FORECAST THAT WILL MAKE TRAVEL HAZARDOUS. LAKE
EFFECT SNOW TYPICALLY FALLS AS NARROW BANDS OF HEAVY SNOW WITHIN
A LARGER AREA OF LIGHTER SNOW. SNOWFALL RATES OF OVER AN INCH PER
HOUR ARE LIKELY UNDER THE HEAVIER BANDS. VISIBILITIES VARY
GREATLY AND CAN DROP TO ZERO WITHIN MINUTES. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...BLANKETS 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.

$$

PAZ024-033-212300-
/O.CON.KCTP.WS.W.0007.000000T0000Z-081121T2300Z/
CAMBRIA-SOMERSET-
302 PM EST FRI NOV 21 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...

A WINTER STORM WARNING FOR SNOW REMAINS IN EFFECT UNTIL 6 PM EST
THIS AFTERNOON.

SNOW SHOWERS WILL BE TAPERING OFF THIS EVENING. WHILE MINOR
ACCUMULATIONS MAY OCCUR OVERNIGHT AND EARLY IN THE DAY ON
SATURDAY...THE POTENTIAL FOR SIGNIFICANT SNOW WILL END THIS
EVENING. 

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.

$$

PAZ006-220815-
/O.EXT.KCTP.WW.Y.0015.081121T2002Z-081122T2300Z/
POTTER-
302 PM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM EST
SATURDAY...

THE WINTER WEATHER ADVISORY FOR SNOW IS NOW IN EFFECT UNTIL 6 PM
EST SATURDAY.

OCCASIONAL LAKE EFFECT SNOW SHOWERS WILL FALL THROUGH THE NIGHT
AND INTO THE DAYTIME ON SATURDAY. NEW SNOW ACCUMULATIONS COULD
REACH 3 TO 5 INCHES OVERNIGHT THROUGH SATURDAY. THE SNOW SHOULD
TAPER OFF TO FLURRIES LATE SATURDAY.

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.
 
$$

PAZ010-011-220800-
/O.EXT.KCTP.WW.Y.0014.000000T0000Z-081122T2300Z/
ELK-CAMERON-
302 PM EST FRI NOV 21 2008

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM EST
SATURDAY...

THE WINTER WEATHER ADVISORY FOR SNOW IS NOW IN EFFECT UNTIL 6 PM
EST SATURDAY.

PERIODS OF SNOW WILL CONTINUE ACROSS THE ALLEGHENIES INTO THE
DAYTIME ON SATURDAY. A SIGNIFICANT BAND OF SNOW MAY DEVELOP ON
SATURDAY AND CREATE HEAVY SNOW FOR THE REGION. ACCUMULATIONS
OVERNIGHT MAY ONLY BE ONE OR TWO INCHES...BUT ANOTHER 3 TO 4
INCHES IS POSSIBLE BY THE END OF THE DAY ON SATURDAY. 

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.

$$

DANGELO

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 Nov 20, 4:57 AM EST, 42 minutes earlier.

Area forecast discussion, Nov 20, 4:57 AM EST, 42 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
457 AM EST THU NOV 20 2008

.SYNOPSIS...
A DEEP UPPER LEVEL TROUGH WILL DOMINATE OUR WEATHER THROUGH
SATURDAY...KEEPING CENTRAL PENNSYLVANIA UNSEASONABLY COLD WITH
SEVERAL BOUTS OF LAKE EFFECT AND OROGRAPHICALLY ENHANCED SNOW
SHOWERS. HIGH PRESSURE WILL BUILD OVER THE REGION LATE SATURDAY
AND SUNDAY. A COLD FRONT WILL PASS THROUGH THE STATE EARLY NEXT
WEEK.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
REGIONAL RADARS SHOWING PATCHY LIGHT SNOW ACROSS CENTRAL PA AND
UPSTATE NY ATTM IN AREA OF WAA AHEAD OF APPROACHING ALBERTA
CLIPPER. IN WAKE OF CLIPPER...FLOW HAS ALREADY SHIFTED TO THE NW
ACROSS LK ERIE/HURON...WHERE IR IMAGERY SHOWING EVIDENCE OF DEVELOPING
LAKE EFFECT STREAMERS.

DEEP/MOIST BLYR ASCENDING THE NW MTNS SHOULD RESULT IN PERSISTENT
LAKE ENHANCED SNOW SHWRS TDY. LCL WRF ARW SHOWING AN IMPRESSIVE
AREA OF LL CONVERGENCE OVR THE NW MTNS IN ASSOCIATION WITH
TRAILING SFC TROF. MODEL QPF IN THIS AREA SUGGESTS SEVERAL INCHES
OF ACCUM ARE LIKELY TDY AND TONIGHT...BEFORE VEERING FLOW SHIFTS
LAKE EFFECT FOCUS SOUTHWARD. THUS...HAVE ISSUED A WINT WX
ADVISORY FOR TDY AND TONIGHT FROM CLEARFIELD CO NORTHWRD THRU
POTTER CO. IN THE SNOWBELT REGION OF WARREN/MCKEAN CO...HAVE
ISSUED A LONG DURATION LAKE EFFECT SNOW WARNING THRU SAT. ALTHOUGH
IT IS CLEAR THAT A LULL IN THE ACTIVITY WILL OCCUR LATE TONIGHT
THRU FRI AFTN AS BLYR FLOW TEMPORARILY SHIFTS TO THE NNW.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/...
FOCUS OF LAKE EFFECT ACTIVITY SHIFTS TO THE SOUTH TONIGHT...AS
BLYR FLOW VEERS TO NNW. HAVE LEANED TOWARD THE HIGHER SREF
POPS...WHICH INDICATE CAT POPS ACROSS THE LAUREL HIGHLANDS AND
APPEAR MORE REALISTIC THAN MOS NUMBERS BASED ON DEEP/MOIST FLOW
ASCENDING THE ALLEGHENIES. MAX OMEGA FALLS BLW DGZ...INDICATING
SOME RIMING AND LESS THAN IDEAL S:W RATIOS. HOWEVER...WINDS REMAIN WELL
ALIGNED /WITH LK HURON CONNECTION/ FOR THE LAURELS TO GET SIG SNOW
TONIGHT AND FRIDAY...THEN WE SHOULD SEE A GRADUAL SHIFT TO THE
NORTH...AND INTO THE NW LAKE EFFECT BELT BY LATE FRIDAY. MODEL QPF
SUGGESTS A GENERAL 4-8 INCH SNOWFALL OVR CAMBRIA/SOMERSET TONIGHT
AND FRIDAY. WILL COVER WITH A WINT STORM WARNING...GIVEN THIS IS
THE FIRST SIG SNOWFALL OF THE SEASON.

PASSAGE OF UPPER LVL SHORTWAVE LATE TONIGHT AND EARLY FRIDAY WILL
BRING THE POTENTIAL OF LIGHT ACCUMS WELL EAST OF THE MTNS. WILL
HAVE TO WATCH FOR POTENTIAL AFFECT ON THE MORNING COMMUTE ACROSS
THE SUSQ VALLEY...WHERE TEMPS ABV THE FREEZING MARK UPON ARRIVAL
OF SHSN COULD PRODUCE BLACK ICE CONDS FRIDAY AM.

BACKING FLOW EXPECTED LATE FRIDAY IN WAKE OF SHORTWAVE...SHIFTING
FOCUS OF LAKE EFFECT NORTHWRD INTO THE NW MTNS.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
NAEFS SHOWING -15C 850 TEMPS CROSSING LK ERIE FRI NITE/EARLY
SAT...WHICH SHOULD PRODUCE SIG LAKE EFFECT SNOW OVR THE NW MTNS
FRI NITE INTO SATURDAY. CROSS HAIR OMEGA/DGZ SIGNATURE INDICATING
HIGH SNOW/WATER RATIOS...LIKELY RESULTING IN LOCALLY HVY ACCUMS.
LAKE EFFECT SHOULD FINALLY DIMINISH SAT NIGHT AS SFC HIGH BUILDS
INTO THE REGION. THE COMBINATION OF SNOW COVER...LIGHT WIND AND
CLEARING SKIES COULD RESULT IN THE COLDEST NIGHT SO FAR THIS
SEASON WITH SINGLE DIGIT LOWS POSS OVR THE ALLEGHENIES BASED ON
GEFS PLUMES.

NEXT SHORTWAVE WILL BRING ANOTHER FAIRLY SIGNIFICANT TROUGH FOR
EARLY NEXT WEEK. DETAILS REMAIN DIFFICULT TO NAIL DOWN AT THIS
TIME FRAME...BUT DETERIORATING WEATHER MON-WED WITH A PERIOD OF
LIGHT PRECIP /PROBABLY SHSN/. TEMPS REMAIN BLW NORMAL THRU AT
LEAST THE MIDDLE OF NEXT WEEK.

&&

.AVIATION /09Z THURSDAY THROUGH MONDAY/...
REGIONAL RADAR AT 06Z SHOWS LIGHT SNOW /2.5-5SM/ BREAKING OUT
ACROSS NRN PA AND SWRN NY STATE...ASSOC WITH WEAK CLIPPER LOW
APPROACHING THE LWR GRT LKS FROM INVOF ERN LAKE HURON IN SRN
ONTARIO. HIGH RES MDL GUID SHOWS THE WEAK CLIPPER LOW SLOWLY
SLIDING SEWD THRU NE PA TNT AND EVENTUALLY MOVG OFF THE MID ATLC
COAST BY FRI AM. OVER TIME...THE LOW LEVEL FLOW /VEERING AROUND TO
THE NW/ WILL BECOME MORE FAVORABLE FOR LAKE EFFECT AND
OROGRAPHICLY ENHANCED SNOW ACROSS THE NORTHWEST MOUNTAINS AND
LAUREL HIGHLANDS. BFD AND JST WILL LIKELY EXPERIENCE THE WORST
FLYING CONDS - AS IS USUALLY THE CASE. CENTRAL TERMINALS AOO/UNV
WILL LIKELY SEE TEMPORARY FLUCTUATIONS IN CIGS AND VIS /MAINLY
MVFR/ ALONG WITH OCNL SHSN. IPT/MDT SHOULD STAY VFR MOST OF THE
TIME...ALTHOUGH IPT COULD LOWER TO MVFR AT TIMES THIS MORNING IN
THE CLIPPER SNOW.

LAKE EFFECT/CYCLONIC FLOW REGIME APPEARS TO REMAIN IN TACT THROUGH
FRIDAY WITH SOME IMPROVEMENT ANTICIPATED FOR THE LATER IN THE WEEKEND.
ATTM...THE PD FM LATE SAT INTO SUNDAY LOOKS LIKE THE BEST CHC FOR
WDSPRD VFR AS A HIGH PRESSURE SYS BRIEFLY VISITS THE REGION.
HOWEVER...THE MDLS SHOW ANOTHER SYS APPROACHING FOR EARLY NEXT
WEEK.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
LAKE EFFECT SNOW WARNING FROM 7 AM THIS MORNING TO 6 PM EST
SATURDAY FOR PAZ004-005.
WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM EST FRIDAY
FOR PAZ024-033.
WINTER WEATHER ADVISORY FROM 11 AM THIS MORNING TO 7 AM EST
FRIDAY FOR PAZ010-011-017.

&&

SYNOPSIS...FITZGERALD
NEAR TERM...FITZGERALD
SHORT TERM...FITZGERALD
LONG TERM...FITZGERALD/RXR
AVIATION...STEINBUGL
Hazardous weather outlook, Nov 19, 5:21 PM EST, 12 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
521 PM EST WED NOV 19 2008

PAZ005-006-010>012-017>019-025>028-034>037-041-042-045-046-049>053-
056>059-063>066-202230-
MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-
BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-SULLIVAN-
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
521 PM EST WED NOV 19 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

PAZ024-033-202230-
CAMBRIA-SOMERSET-
521 PM EST WED NOV 19 2008

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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 IS NOT EXPECTED AT THIS TIME.

PAZ004-202230-
WARREN-
521 PM EST WED NOV 19 2008

...LAKE EFFECT SNOW WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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

   LAKE EFFECT SNOW WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 20, 5:39 AM ESTLake Effect Snow WarningCTPMcKean, Warren58 hr
Nov 20, 5:39 AM ESTWinter Weather AdvisoryCTPCameron, Centre, Clearfield, Clinton, Elk, Montour and 4 more58 hr
Nov 20, 3:00 PM ESTWinter Storm WatchCTPPotter16 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2008Every winter storm warning in 2008

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.