Alert archive / Pennsylvania / Winter Storm Warnings in 2011

Winter Storm Warning 9, NWS State College, PA

March 22, 20115 counties in Pennsylvania

NWS State College, PA issued this winter storm warning at Mar 22, 2011, 3:49 PM EDT for 5 counties in Pennsylvania. It took effect at Mar 23, 2011, 1:00 AM EDT. It was in force for 13 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
Mar 22, 2011, 3:49 PM EDT (19:49 UTC)
In effect from
Mar 23, 2011, 1:00 AM EDT
Expired
Mar 23, 2011, 1:53 PM EDT
In force
13 hr
Issued by
NWS State College, PA

Counties Columbia County, PA, Lycoming County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA

The radar

The State College radar (KCCX), 102 km from the middle of the area, began a volume at 19:53 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.8 hours before the alert went out and 213 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, Buffalo Intl Airport, NY at 12:00Z on 2011-03-22Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2011-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
646 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
10 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.

576 
WWUS41 KCTP 221949
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
349 PM EDT TUE MAR 22 2011

...SIGNIFICANT SNOW AND MIXED PRECIPITATION HEADED OUR WAY FOR
LATE TONIGHT THROUGH WEDNESDAY NIGHT...

.LOW PRESSURE MOVING INTO THE MIDWEST TONIGHT...AND A WARM FRONT
EXTENDING EAST INTO THE OHIO RIVER VALLEY...WILL COMBINE TO BRING
AN AREA OF HEAVY SNOW TO THE NORTH CENTRAL MOUNTAINS. A VARIETY OF
PRECIPITATION WILL FALL A BIT FURTHER SOUTH TO AROUND INTERSTATE
80. THE LEADING EDGE OF PRECIPITATION WILL SPREAD EAST ACROSS THE
REGION LATE TONIGHT...AND CONTINUE TO FALL AT VARYING INTENSITY
DURING THE DAY WEDNESDAY. A SHORTER PERIOD OF MIXED PRECIPITATION
FOLLOWED BY MAINLY RAIN IS EXPECTED TO FALL ACROSS THE SOUTHWEST
HALF OF THE STATE. THE RAIN...SNOW LINE SHOULD SHIFT SOUTH TO
BETWEEN INTERSTATE 80 AND ROUTE 22 IN CENTRAL PENNSYLVANIA
WEDNESDAY EVENING BRINGING THE POTENTIAL FOR UP TO SEVERAL INCHES
OF SNOW FROM A SECOND ROUND OF PRECIPITATION.


PAZ006-037-041-042-053-231100-
/O.UPG.KCTP.WS.A.0006.110323T0400Z-110324T1200Z/
/O.NEW.KCTP.WS.W.0009.110323T0500Z-110324T1200Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-COLUMBIA-
INCLUDING THE CITIES OF...COUDERSPORT...MANSFIELD...WELLSBORO...
LAPORTE...BLOOMSBURG...BERWICK
349 PM EDT TUE MAR 22 2011

...WINTER STORM WARNING IN EFFECT FROM 1 AM WEDNESDAY TO 8 AM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...MIXED WITH SLEET AT TIMES...WHICH
IS IN EFFECT FROM 1 AM WEDNESDAY TO 8 AM EDT THURSDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* LOCATION...THE NORTH CENTRAL MOUNTAINS AND A PORTION OF THE
  MIDDLE SUSQUEHANNA VALLEY.

* PRECIPITATION TYPE...SNOW AND SLEET.

* ACCUMULATIONS...OVER 6 INCHES OF SNOW WITH SOME SLEET ON TOP.
  THE HEAVIEST ACCUMULATIONS OF SNOW AND SLEET WILL BE FROM
  COUDERSPORT...EAST THROUGH MANSFIELD AND LAPORTE.

* TIMING...THE LEADING EDGE OF SNOW AND SLEET WILL SPREAD EAST
  ACROSS THE REGION WITHIN A FEW HOURS EITHER SIDE OF MIDNIGHT.
  SLIGHTLY ABOVE FREEZING AIR ALOFT COULD MOVE OVER THE REGION ON
  WEDNESDAY...CAUSING SLEET TO MIX IN WITH THE SNOW. ANY MIXED
  PRECIPITATION WILL TURN BACK TO PERIODS OF SNOW OR SNOW SHOWERS
  WEDNESDAY NIGHT.

* WINDS...EAST TO NORTHEAST 10 TO 15 MPH.

* IMPACTS...SNOW COVERED ROADS...AND POSSIBLY A HEAVY COATING OF
  SNOW... SLEET ON TOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND SLEET MEANS THAT
SNOWFALL OF OVER 6 INCHES IN EXPECTED TO FALL ALONG WITH A COATING
OF SLEET. THE SIGNIFICANT AMOUNT OF SNOW AND SLEET 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.

&&

$$

PAZ005-011-012-058-231100-
/O.UPG.KCTP.WS.A.0006.110323T0400Z-110324T1200Z/
/O.NEW.KCTP.WW.Y.0017.110323T0500Z-110324T1200Z/
MCKEAN-CAMERON-NORTHERN CLINTON-SCHUYLKILL-
INCLUDING THE CITIES OF...BRADFORD...EMPORIUM...RENOVO...
POTTSVILLE
349 PM EDT TUE MAR 22 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM WEDNESDAY TO 8 AM
EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT
FROM 1 AM WEDNESDAY TO 8 AM EDT THURSDAY. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* LOCATION...NORTH CENTRAL AND EAST CENTRAL MOUNTAINS.

* PRECIPITATION TYPE...SNOW AND SLEET...MIXING WITH OR CHANGING 
  TO FREEZING RAIN. 

* ACCUMULATIONS...3 TO 6 INCHES OF SNOW...A LAYER OF SLEET...AND
  THE POTENTIAL FOR A THIN COATING OF ICE BETWEEN ONE AND TWO
  TENTHS OF AN INCH.

* TIMING...THE LEADING EDGE OF SNOW AND SLEET WILL SPREAD EAST
  ACROSS THE REGION WITHIN A FEW HOURS EITHER SIDE OF MIDNIGHT.
  SLIGHTLY ABOVE FREEZING AIR ALOFT WILL MOVE EAST OVER THE REGION
  ON WEDNESDAY...CAUSING A CHANGE OVER TO A MIX OF RAIN...SLEET
  AND FREEZING RAIN. MIXED PRECIPITATION WILL TURN BACK TO PERIODS
  OF SNOW OR SNOW SHOWERS WEDNESDAY NIGHT.

* WINDS...EAST TO NORTHEAST 10 TO 15 MPH.

* IMPACTS...SNOW AND ICE COVERED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...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.

&&

$$

PAZ045-046-049-051-052-231100-
/O.NEW.KCTP.WW.Y.0017.110323T0500Z-110324T1200Z/
SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-MONTOUR-NORTHUMBERLAND-
INCLUDING THE CITIES OF...LOCK HAVEN...WILLIAMSPORT...LEWISBURG...
DANVILLE...SUNBURY...SHAMOKIN
349 PM EDT TUE MAR 22 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM WEDNESDAY TO 8 AM
EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT
FROM 1 AM WEDNESDAY TO 8 AM EDT THURSDAY.

* LOCATION...CENTRAL AND WEST BRANCH PORTIONS OF THE SUSQUEHANNA
  VALLEY. 

* PRECIPITATION TYPE...SNOW AND SLEET...MIXING WITH OR CHANGING 
  TO FREEZING RAIN. 

* ACCUMULATIONS...2 TO 5 INCHES OF SNOW...A LAYER OF SLEET...AND
  THE POTENTIAL FOR A THIN COATING OF ICE BETWEEN ONE AND TWO
  TENTHS OF AN INCH.

* TIMING...THE LEADING EDGE OF SNOW AND SLEET WILL SPREAD EAST
  ACROSS THE REGION WITHIN A FEW HOURS EITHER SIDE OF MIDNIGHT.
  SLIGHTLY ABOVE FREEZING AIR ALOFT WILL MOVE EAST OVER THE REGION
  ON WEDNESDAY...CAUSING A CHANGE OVER TO A MIX OF RAIN...SLEET
  AND FREEZING RAIN. MIXED PRECIPITATION WILL TURN BACK TO PERIODS
  OF SNOW OR SNOW SHOWERS WEDNESDAY NIGHT.

* WINDS...EAST TO NORTHEAST 10 TO 15 MPH.

* IMPACTS...SNOW AND ICE COVERED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...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.

&&

$$

LAMBERT/RADZANOWSKI
3 follow-up statements
631 
WWUS41 KCTP 230216
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1016 PM EDT TUE MAR 22 2011

...SIGNIFICANT SNOW AND MIXED PRECIPITATION EXPECTED FOR LATE
TONIGHT INTO WEDNESDAY NIGHT...

.A STORM OVER WESTERN IOWA EARLY THIS EVENING WILL MOVE OVER OR
JUST SOUTH OF THE MARYLAND BORDER BY WEDNESDAY EVENING. THIS WILL
BRING AN AREA OF HEAVY SNOW TO THE NORTH CENTRAL MOUNTAINS WITH A
WINTRY MIX OF SLEET...FREEZING RAIN...RAIN AND SNOW FURTHER SOUTH
TO AROUND INTERSTATE 80.

PAZ006-037-041-042-053-231030-
/O.CON.KCTP.WS.W.0009.110323T0500Z-110324T1200Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-COLUMBIA-
INCLUDING THE CITIES OF...COUDERSPORT...MANSFIELD...WELLSBORO...
LAPORTE...BLOOMSBURG...BERWICK
1016 PM EDT TUE MAR 22 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THURSDAY.

* LOCATION...THE NORTH CENTRAL MOUNTAINS AND A PORTION OF THE 
  MIDDLE SUSQUEHANNA VALLEY. 

* PRECIPITATION TYPE...SNOW AND SLEET.

* ACCUMULATIONS...OVER 6 INCHES OF SNOW MIXED WITH SOME SLEET.
  THE HEAVIEST ACCUMULATIONS OF SNOW AND SLEET WILL BE FROM
  COUDERSPORT...EAST THROUGH MANSFIELD AND LAPORTE.

* TIMING...PRECIPITATION WILL OVERSPREAD THE AREA OVERNIGHT.
  SLIGHTLY ABOVE FREEZING AIR ALOFT COULD MOVE OVER THE REGION ON
  WEDNESDAY...CAUSING SLEET OR FREEZING RAIN TO MIX IN WITH THE
  SNOW. ANY MIXED PRECIPITATION WILL TURN BACK TO PERIODS OF SNOW
  OR SNOW SHOWERS WEDNESDAY NIGHT.

* WINDS...EAST TO NORTHEAST 10 TO 15 MPH.

* IMPACTS...SLIPPERY TRAVEL DUE TO HEAVY ACCUMULATIONS OF SNOW
  MIXED WITH SLEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND SLEET MEANS THAT
SNOWFALL OF OVER 6 INCHES IN EXPECTED TO FALL ALONG WITH A
COATING OF SLEET. THE SIGNIFICANT AMOUNT OF SNOW AND SLEET 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.

&&

$$

PAZ005-011-012-045-046-049-051-052-058-231030-
/O.CON.KCTP.WW.Y.0017.110323T0500Z-110324T1200Z/
MCKEAN-CAMERON-NORTHERN CLINTON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-UNION-MONTOUR-NORTHUMBERLAND-SCHUYLKILL-
INCLUDING THE CITIES OF...BRADFORD...EMPORIUM...RENOVO...
LOCK HAVEN...WILLIAMSPORT...LEWISBURG...DANVILLE...SUNBURY...
SHAMOKIN...POTTSVILLE
1016 PM EDT TUE MAR 22 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY. 

* LOCATION...NORTH CENTRAL AND EAST CENTRAL MOUNTAINS.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET...MIXING
  WITH OR CHANGING TO FREEZING RAIN.

* ACCUMULATIONS...3 TO 6 INCHES OF SNOW...POSSIBLY MIXED WITH SOME
  SLEET OR FREEZING RAIN.

* TIMING...PRECIPITATION WILL OVERSPREAD THE AREA OVERNIGHT.
  WARMER AIR ALOFT WILL MOVE EAST OVER THE REGION ON
  WEDNESDAY...CAUSING A CHANGE-OVER TO A MIX OF RAIN... SLEET AND
  FREEZING RAIN. MIXED PRECIPITATION WILL TURN BACK TO PERIODS OF
  SNOW OR SNOW SHOWERS WEDNESDAY NIGHT.

* WINDS...EAST TO NORTHEAST 10 TO 15 MPH.

* IMPACTS...SNOW AND ICE COVERED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...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.

&&

$$
661 
WWUS41 KCTP 230800
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
400 AM EDT WED MAR 23 2011

...LATE WINTER STORM WILL CONTINUE...

.A WARM FRONT DRAPED ACROSS THE OHIO VALLEY AND MID ATLANTIC
STATES WILL PROVIDE A PATH FOR A STORM OVER THE MIDWEST. THE
SURFACE LOW PRESSURE AREA WILL MOVE ALONG THE SOUTHERN BORDER OF
THE STATE THIS AFTERNOON AND EVENING. AN AREA OF HEAVY SNOW WILL
AFFECT THE NORTH CENTRAL MOUNTAINS FOR MOST OF THE DAY. A WINTRY
MIX OF SLEET...RAIN AND FREEZING RAIN WILL TURN TO ALL RAIN BY
NOON OVER THE CENTRAL MOUNTAINS.

PAZ006-037-041-042-053-231600-
/O.CON.KCTP.WS.W.0009.000000T0000Z-110324T1200Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-COLUMBIA-
INCLUDING THE CITIES OF...COUDERSPORT...MANSFIELD...WELLSBORO...
LAPORTE...BLOOMSBURG...BERWICK
400 AM EDT WED MAR 23 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THURSDAY.

* LOCATION...THE NORTH CENTRAL MOUNTAINS AND A PORTION OF THE 
  MIDDLE SUSQUEHANNA VALLEY. 

* PRECIPITATION TYPE...SNOW AND SLEET.

* ACCUMULATIONS...6 TO 8 INCHES OF SNOW MIXED WITH SOME SLEET. THE
  HEAVIEST ACCUMULATIONS OF SNOW AND SLEET WILL AROUND
  COUDERSPORT...MANSFIELD AND LAPORTE.

* TIMING...A CONSTANT HEAVY SNOW WILL TURN TO A MIXTURE OF
  SLEET...SNOW AND EVEN SOME FREEZING RAIN OVER MUCH OF THE AREA
  THIS AFTERNOON. HOWEVER...IT SHOULD TURN BACK TO SNOW THIS
  EVENING BEFORE TAPERING OFF OVERNIGHT.

* WINDS...EAST TO NORTHEAST AT AROUND 10 MPH.

* IMPACTS...SLIPPERY TRAVEL DUE TO HEAVY ACCUMULATIONS OF SNOW
  MIXED WITH SLEET AND POSSIBLY FREEZING RAIN AS WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND SLEET MEANS THAT
SNOWFALL OF OVER 6 INCHES IN EXPECTED TO FALL ALONG WITH A
COATING OF SLEET. THE SIGNIFICANT AMOUNT OF SNOW AND SLEET 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.

&&

$$

PAZ004-010-017>019-050-231600-
/O.EXB.KCTP.WW.Y.0017.000000T0000Z-110323T1600Z/
WARREN-ELK-CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-SNYDER-
INCLUDING THE CITIES OF...WARREN...ST. MARYS...RIDGWAY...DUBOIS...
CLEARFIELD...PHILIPSBURG...STATE COLLEGE...SELINSGROVE
400 AM EDT WED MAR 23 2011

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR A MIXTURE OF SLEET AND FREEZING RAIN...WHICH
IS IN EFFECT UNTIL NOON EDT TODAY.

* LOCATION...AREAS AROUND WARREN...CLEARFIELD AND STATE COLLEGE. 

* PRECIPITATION TYPE...A WINTRY MIX OF RAIN...SLEET AND FREEZING
  RAIN. 

* ACCUMULATIONS...AN ADDITIONAL INCH OR SO OF SNOW AND
  SLEET...ALONG WITH A GLAZE OF ICE FROM FREEZING RAIN.

* TIMING...THE MIX OF PRECIPITATION WILL START TO LIGHTEN THIS
  MORNING...THEN RETURN FOR THE AFTERNOON. BUT BY THEN...THE AIR
  TEMPERATURES AND WARMER AIR ALOFT WILL CHANGE THE MIX TO PLAIN
  RAIN. 

* WINDS...EAST TO NORTHEAST AROUND 10 MPH.

* IMPACTS...ICY ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...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.

&&

$$

PAZ005-011-012-045-046-049-051-052-058-231600-
/O.CON.KCTP.WW.Y.0017.000000T0000Z-110324T1200Z/
MCKEAN-CAMERON-NORTHERN CLINTON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-UNION-MONTOUR-NORTHUMBERLAND-SCHUYLKILL-
INCLUDING THE CITIES OF...BRADFORD...EMPORIUM...RENOVO...
LOCK HAVEN...WILLIAMSPORT...LEWISBURG...DANVILLE...SUNBURY...
SHAMOKIN...POTTSVILLE
400 AM EDT WED MAR 23 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
THURSDAY. 

* LOCATION...NORTH CENTRAL AND EAST CENTRAL MOUNTAINS.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET...MIXING 
  WITH OR CHANGING TO FREEZING RAIN. 

* ACCUMULATIONS...3 TO 6 INCHES OF SNOW...POSSIBLY MIXED WITH 
  SOME SLEET OR FREEZING RAIN. 

* TIMING...PRECIPITATION WILL CONTINUE OFF AND ON FOR THE
  MORNING...BUT RETURN TO A CONSTANT MIX OF SNOW...SLEET AND EVEN
  PATCHES OF FREEZING RAIN FOR THE AFTERNOON AND EVENING. THE MIX
  WILL EVENTUALLY TURN BACK TO SNOW SHOWERS TONIGHT.

* WINDS...EAST TO NORTHEAST AROUND 10 MPH.

* IMPACTS...SNOW AND ICE COVERED ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...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.

&&

$$
161 
WWUS41 KCTP 231753
WSWCTP

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
153 PM EDT WED MAR 23 2011

...CANCEL WINTER STORM WARNING AND ADVISORY...

.THE SIGNIFICANT ACCUMULATING SNOW ENDED THIS MORNING AND MOST
AREAS OF ACCUMULATING ICE HAVE ENDED. A FEW MORE INCHES OF SNOW ARE
POSSIBLE LATER THIS EVENING AND OVERNIGHT BUT SHOULD BE ONLY A FEW
INCHES OF NEW SNOW.

PAZ006-037-041-042-053-231900-
/O.CAN.KCTP.WS.W.0009.000000T0000Z-110324T1200Z/
POTTER-TIOGA-NORTHERN LYCOMING-SULLIVAN-COLUMBIA-
INCLUDING THE CITIES OF...COUDERSPORT...MANSFIELD...WELLSBORO...
LAPORTE...BLOOMSBURG...BERWICK
153 PM EDT WED MAR 23 2011

...WINTER STORM WARNING IS CANCELED...

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

THE SIGNIFICANT ACCUMULATING SNOWS MOVED TO OUR EAST THIS MORNING.
MOST OF THE SLEET AND FREEZING RAIN HAS ENDED. MORE SNOW IS
EXPECTED LATER THIS EVENING AND TONIGHT BUT SHOULD NOT BE MORE
THAN A FEW MORE INCHES OF NEW SNOW.

$$

PAZ005-011-012-045-046-049-051-052-058-231900-
/O.CAN.KCTP.WW.Y.0017.000000T0000Z-110324T1200Z/
MCKEAN-CAMERON-NORTHERN CLINTON-SOUTHERN CLINTON-
SOUTHERN LYCOMING-UNION-MONTOUR-NORTHUMBERLAND-SCHUYLKILL-
INCLUDING THE CITIES OF...BRADFORD...EMPORIUM...RENOVO...
LOCK HAVEN...WILLIAMSPORT...LEWISBURG...DANVILLE...SUNBURY...
SHAMOKIN...POTTSVILLE
153 PM EDT WED MAR 23 2011

...WINTER WEATHER ADVISORY IS CANCELED...

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

MOST AREAS ARE NOW ABOVE FREEZING AND THE PRECIPITATION HAS BECOME
MORE SCATTERED. MAINLY RAIN SHOWERS THIS AFTERNOON. THE
PRECIPITATION COULD TURN TO SNOW LATER THIS EVENING AND AN INCH OR
TWO OF NEW SNOW IS POSSIBLE. BUT ADVISORY CATEGORY SNOW IS NOT
LIKELY THE THREAT ACCUMULATING ICE HAS ENDED.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 3:51 AM EDTWinter Storm WatchCTPCameron, Clinton, Columbia, Lycoming, McKean, Potter and 3 more12 hr
Mar 22, 3:49 PM EDTWinter Weather AdvisoryCTPCameron, Centre, Clearfield, Clinton, Elk, Lycoming and 7 more22 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2011Every winter storm warning in 2011

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.