Alert archive / Pennsylvania / Winter Storm Warnings in 2018

Winter Storm Warning 6, NWS State College, PA

March 6, 20186 counties in Pennsylvania

NWS State College, PA issued this winter storm warning at Mar 6, 2018, 11:59 AM EST for 6 counties in Pennsylvania. It took effect at Mar 7, 2018, 12:00 AM EST. It was in force for 15 hr. 6 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 6, 2018, 11:59 AM EST (16:59 UTC)
In effect from
Mar 7, 2018, 12:00 AM EST
Expired
Mar 7, 2018, 2:40 PM EST
In force
15 hr
Issued by
NWS State College, PA

Counties Columbia County, PA, Dauphin County, PA, Lancaster County, PA, Lebanon County, PA, Schuylkill County, PA, York County, PA

The radar

The State College radar (KCCX), 141 km from the middle of the area, began a volume at 16:57 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.

What was reported inside it

TimeReportWhereRemark
Mar 7, 11:35 AM ESTSNOW 42 S Schuylkill Haven, PA
Mar 7, 11:53 AM ESTSNOW 1.6Stewartstown, PA
Mar 7, 12:00 PM ESTSNOW 4Lake Wynonah, PA
Mar 7, 12:35 PM ESTSNOW 4Coaldale, PA
Mar 7, 2:00 PM ESTSNOW 3Numidia, PA
Mar 7, 2:30 PM ESTSNOW 1Denver, PA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 5.0 hours before the alert went out and 181 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 2018-03-06Temperature 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 2018-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.1939587897Sfc1 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
1219 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
248 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

900 
WWUS41 KCTP 061659
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
1159 AM EST Tue Mar 6 2018

PAZ053-057>059-065-066-070100-
/O.UPG.KCTP.WS.A.0005.180307T0500Z-180308T0500Z/
/O.NEW.KCTP.WS.W.0006.180307T0500Z-180308T0500Z/
Columbia-Dauphin-Schuylkill-Lebanon-York-Lancaster-
Including the cities of Bloomsburg, Berwick, Harrisburg, Hershey,
Pottsville, Lebanon, York, and Lancaster
1159 AM EST Tue Mar 6 2018

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT EST WEDNESDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6 
  inches, with localized amounts up to 8 inches, are expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From midnight tonight to midnight EST Wednesday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Wednesday. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
7 follow-up statements
476 
WWUS41 KCTP 062121
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
421 PM EST Tue Mar 6 2018


PAZ053-057>059-065-066-070530-
/O.EXT.KCTP.WS.W.0006.180307T0500Z-180308T0100Z/
Columbia-Dauphin-Schuylkill-Lebanon-York-Lancaster-
Including the cities of Bloomsburg, Berwick, Harrisburg, Hershey,
Pottsville, Lebanon, York, and Lancaster
421 PM EST Tue Mar 6 2018

...WINTER STORM WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
8 PM EST WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches, with localized amounts up to 10 inches on the higher 
  elevations, are expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From midnight tonight to 8 PM EST Wednesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Wednesday. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ028-042-046-049>052-056-063-064-070530-
/O.NEW.KCTP.WW.Y.0015.180307T0500Z-180307T2300Z/
Juniata-Sullivan-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Perry-Cumberland-Adams-
Including the cities of Mifflintown, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Newport, 
Carlisle, and Gettysburg
421 PM EST Tue Mar 6 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM EST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches,
  with localized amounts up to 6 inches on higher elevations, are
  expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From midnight tonight to 6 PM EST Wednesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
340 
WWUS41 KCTP 070332
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
1032 PM EST Tue Mar 6 2018


PAZ053-057>059-065-066-071145-
/O.CON.KCTP.WS.W.0006.180307T0500Z-180308T0100Z/
Columbia-Dauphin-Schuylkill-Lebanon-York-Lancaster-
Including the cities of Bloomsburg, Berwick, Harrisburg, Hershey,
Pottsville, Lebanon, York, and Lancaster
1032 PM EST Tue Mar 6 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches, with localized amounts up to 10 inches on the higher
  elevations, are expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 PM EST Wednesday. The heaviest of the snow will
  be between 7 AM EST and 4 PM EST. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ028-042-046-049>052-056-063-064-071145-
/O.CON.KCTP.WW.Y.0015.180307T0500Z-180307T2300Z/
Juniata-Sullivan-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Perry-Cumberland-Adams-
Including the cities of Mifflintown, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Newport, 
Carlisle, and Gettysburg
1032 PM EST Tue Mar 6 2018

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

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches,
  with localized amounts up to 6 inches on the higher elevations,
  are expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 6 PM EST Wednesday. The heaviest of the snow will
  be between 10 AM EST and 4 PM EST.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
524 
WWUS41 KCTP 070853
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
353 AM EST Wed Mar 7 2018

PAZ058-059-066-080000-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Schuylkill-Lebanon-Lancaster-
Including the cities of Pottsville, Lebanon, and Lancaster
353 AM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 10
  inches. 

* WHERE...Schuylkill, Lebanon and Lancaster Counties.

* WHEN...Coverage and intensity of snow will increase through 
  7AM. The heaviest snow is expected between 8AM and 3PM with 
  accumulation rates 1-2 inches per hour at times. Snow will 
  decrease late this afternoon and end by 8PM. 

* ADDITIONAL DETAILS...Plan on very difficult travel conditions
  and longer commute times. Be prepared for significant 
  reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ053-057-065-080000-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Columbia-Dauphin-York-
Including the cities of Bloomsburg, Berwick, Harrisburg, Hershey,
and York
353 AM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches.  

* WHERE...Columbia, Dauphin and York Counties. 

* WHEN...Coverage and intensity of snow will increase through 
  8AM. The heaviest snow is expected between 9AM and 4PM with 
  accumulation rates 1-2 inches per hour at times. Snow will 
  decrease late this afternoon and end by 8PM. 

* ADDITIONAL DETAILS...Plan on very difficult travel conditions
  and longer commute times. Be prepared for significant 
  reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ028-042-046-049>052-056-063-064-072300-
/O.CON.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Juniata-Sullivan-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Perry-Cumberland-Adams-
Including the cities of Mifflintown, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Newport, 
Carlisle, and Gettysburg
353 AM EST Wed Mar 7 2018

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

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches.

* WHERE...Portions of east-central Pennsylvania.

* WHEN...Coverage and intensity of snow will increase through 
  10AM. The heaviest snow is expected between 10AM and 2PM. Snow 
  will decrease this afternoon and end by 6PM.
 
* ADDITIONAL DETAILS...Plan on slippery road conditions and longer
  commute times. Be prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$
MS/RXR

For more information from the National Weather Service visit
http://weather.gov/ctp
562 
WWUS41 KCTP 071257
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
757 AM EST Wed Mar 7 2018


PAZ058-059-066-072100-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Schuylkill-Lebanon-Lancaster-
Including the cities of Pottsville, Lebanon, and Lancaster
757 AM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 
  inches, with localized amounts up to 7 inches, are expected.

* WHERE...Schuylkill, Lebanon and Lancaster Counties.

* WHEN...Until 8 PM EST this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ053-057-065-072100-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Columbia-Dauphin-York-
Including the cities of Bloomsburg, Berwick, Harrisburg, Hershey,
and York
757 AM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches are expected.

* WHERE...Columbia, Dauphin and York Counties.

* WHEN...Until 8 PM EST this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ004-005-010-017-024-072000-
/O.EXB.KCTP.WW.Y.0015.000000T0000Z-180307T2000Z/
Warren-McKean-Elk-Clearfield-Cambria-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, and Johnstown
757 AM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...Warren, McKean, Elk, Clearfield and Cambria Counties.

* WHEN...Until 3 PM EST this afternoon.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

PAZ028-042-046-049>052-056-063-064-072100-
/O.CON.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Juniata-Sullivan-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Perry-Cumberland-Adams-
Including the cities of Mifflintown, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Newport, 
Carlisle, and Gettysburg
757 AM EST Wed Mar 7 2018

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

* WHAT...Snow. Additional snow accumulations of up to 2 inches 
  are expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 6 PM EST this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
096 
WWUS41 KCTP 071725
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
1225 PM EST Wed Mar 7 2018



PAZ057-065-071830-
/O.CAN.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Dauphin-York-
Including the cities of Harrisburg, Hershey, and York
1225 PM EST Wed Mar 7 2018

...WINTER STORM WARNING IS CANCELLED...

While additional snowfall is likely this afternoon, any accumulations
will light and limited to grassy surfaces..

$$

PAZ028-046-049>052-056-063-064-071830-
/O.CAN.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Juniata-Southern Lycoming-Union-Snyder-Montour-Northumberland-
Perry-Cumberland-Adams-
Including the cities of Mifflintown, Williamsport, Lewisburg, 
Selinsgrove, Danville, Sunbury, Shamokin, Newport, Carlisle, 
and Gettysburg
1225 PM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

While additional snowfall is likely this afternoon, any accumulations
will light and limited to grassy surfaces.

$$

PAZ058-059-066-080100-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Schuylkill-Lebanon-Lancaster-
Including the cities of Pottsville, Lebanon, and Lancaster
1225 PM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 
  inches are expected.

* WHERE...Schuylkill, Lebanon and Lancaster Counties.

* WHEN...Until 8 PM EST this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ053-080100-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Columbia-
Including the cities of Bloomsburg and Berwick
1225 PM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches are expected.

* WHERE...Columbia County.

* WHEN...Until 8 PM EST this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ004-005-010-017-024-072000-
/O.CON.KCTP.WW.Y.0015.000000T0000Z-180307T2000Z/
Warren-McKean-Elk-Clearfield-Cambria-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, and Johnstown
1225 PM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...Warren, McKean, Elk, Clearfield and Cambria Counties.

* WHEN...Until 3 PM EST this afternoon.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

PAZ042-072300-
/O.CON.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Sullivan-
Including the city of Laporte
1225 PM EST Wed Mar 7 2018

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

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches 
  are expected.

* WHERE...Sullivan County.

* WHEN...Until 6 PM EST this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
005 
WWUS41 KCTP 071827
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
127 PM EST Wed Mar 7 2018


PAZ053-072300-
/O.CAN.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
/O.EXA.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Columbia-
Including the cities of Bloomsburg and Berwick
127 PM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to 2 inches 
  are expected.

* WHERE...Columbia County.

* WHEN...Until 6 PM EST this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

PAZ059-066-071930-
/O.CAN.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Lebanon-Lancaster-
Including the cities of Lebanon and Lancaster
127 PM EST Wed Mar 7 2018

...WINTER STORM WARNING IS CANCELLED...

While additional snowfall is likely this afternoon, any accumulations
will light and limited to grassy surfaces.


$$

PAZ004-005-010-017-024-071930-
/O.CAN.KCTP.WW.Y.0015.000000T0000Z-180307T2000Z/
Warren-McKean-Elk-Clearfield-Cambria-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, and Johnstown
127 PM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Any additional accumulations will light and limited to grassy 
surfaces.


$$

PAZ058-080100-
/O.CON.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Schuylkill-
Including the city of Pottsville
127 PM EST Wed Mar 7 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3 
  inches are expected.

* WHERE...Schuylkill County.

* WHEN...Until 8 PM EST this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel. Visit
www.511pa.com for the latest travel, roadway and traffic
conditions.

&&

$$

PAZ042-072300-
/O.CON.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Sullivan-
Including the city of Laporte
127 PM EST Wed Mar 7 2018

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

* WHAT...Snow. Additional snow accumulations of up to 2 inches 
  are expected.

* WHERE...Sullivan County.

* WHEN...Until 6 PM EST this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to adjust speeds based on
driving conditions as winter weather impacts Pennsylvania
roadways. Visit www.511pa.com for the latest travel, roadway and
traffic conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
150 
WWUS41 KCTP 071940
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
240 PM EST Wed Mar 7 2018


PAZ058-072045-
/O.CAN.KCTP.WS.W.0006.000000T0000Z-180308T0100Z/
Schuylkill-
Including the city of Pottsville
240 PM EST Wed Mar 7 2018

...WINTER STORM WARNING IS CANCELLED...

While additional snowfall is likely this afternoon, any accumulations
will light.


$$

PAZ042-053-072045-
/O.CAN.KCTP.WW.Y.0015.000000T0000Z-180307T2300Z/
Sullivan-Columbia-
Including the cities of Laporte, Bloomsburg, and Berwick
240 PM EST Wed Mar 7 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

While additional snowfall is likely this afternoon, any additional accumulations
will light.


$$

For more information from the National Weather Service visit
http://weather.gov/ctp

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 Mar 6, 9:42 AM EST, 2 hours 17 minutes earlier.

Area forecast discussion, Mar 6, 9:42 AM EST, 2 hours 17 minutes before
Area Forecast Discussion
National Weather Service State College PA
942 AM EST Tue Mar 6 2018

.SYNOPSIS...
A winter storm system will bring accumulating snow to much of
central Pennsylvania Tuesday night into Wednesday. The heaviest
snowfall and area of greatest impact is expected to be focused
over east-central Pennsylvania. Periods of snow are likely to
continue over the northwest Alleghenies and Laurel Highlands
with additional snow accumulation through the end of the week.
Temperatures will stay below average into the weekend.

&&

.NEAR TERM /THROUGH TONIGHT/...
Increasing clouds today with spotty/light precip increasing in
coverage later this afternoon into early tonight. Expect
rain/snow mix in the valleys and wet snow at higher elevations,
eventually trending toward greater coverage of wet snow
overnight with nightfall helping to produce a slushy coating to
an inch or so by Wednesday morning.

&&

.SHORT TERM /WEDNESDAY THROUGH WEDNESDAY NIGHT/...
Computer models show rapid coastal surface low development over
the eastern Carolinas late Tue. night moving up the northern Mid
Atlantic coast (just east of the Delmarva/NJ coast) Wednesday.
The potent winter storm will develop into a Nor'easter with the
potential to bring heavy snow to parts of east-central PA during
the daylight hours Wednesday. Tight gradients in the QPF lead
to continued uncertainty on the western edge of the precip
shield. Due to tight gradient and the forecast snow accumulation
window falling just outside of the 06/00Z HREF solution envelope,
opted to ride the watch for one more cycle and allow the
dayshift to issue advisory and/or warning headlines. The track
of the surface low will be of great importance regarding snow
impacts and tight gradients in the snowfall amounts. Slight
west/east shifts in the track could make a big difference across
east-central PA. Highest confidence and multi-model ensemble
probabilities for significant snow is along/east of the I-81 and
US-15 corridor. A period of intense snowfall rates is possible
Wednesday with 1-2 in/hr rates in the deformation zone snow
bands. Snow intensity should be trending down by Wednesday
night as gusty, downslope/westerly flow eventually takes
control of the large scale synoptic pattern.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
Upper low rotates through the area Thu-Fri combining with
seasonably cold westerly flow to prolong snow showers downwind
of the lakes and over the favored upslope areas along the
Allegheny Plateau. This will support additional snow
accumulation through the end of the week across the higher
elevations in the Laurel Highlands and northwest Alleghenies.

Storm potential still very much up in the air heading into early
next week with very low confidence given a large spread in the
guidance. Greater confidence exists in a continuation of below
average/seasonably cool temperatures for early to mid March.

&&

.AVIATION /15Z TUESDAY THROUGH SATURDAY/...
To start, an area of MVFR stratocu continues to shrink over
parts of the northern mountains, and will recede into NY state
around 13z. The first half of the day today will bring
widespread VFR conditions as light winds swing around to the SE
and increase to around 10 mph.

Then focus turns to an approaching winter storm system that will
bring widespread restrictions (and winter weather) to the
region. A weakening occluded front will push in from the west
this afternoon, with ceiling restrictions developing from west
to east through the afternoon and mid evening. Timed the
restrictions to begin at JST/BFD around 18z, 21-23z at AOO/UNV,
and 00Z at IPT/MDT/LNS. Light rain and snow showers will
accompany the front.

Main player then becomes a rapidly developing coastal low that
will reinforce low ceilings and bring accumulating snow to much
of central Pennsylvania tonight into Wednesday. The heaviest
snowfall and area of greatest impact is expected to be focused
over eastern Pennsylvania east of the Susquehanna River.

Restrictions and periods of snow are likely to continue over
the northwest Alleghenies and Laurel Highlands with additional
snow accumulation through the end of the week.

Outlook...

Wed...Widespread restrictions. Periods of snow - heaviest in
the east. Becoming breezy.

Thu-Fri...Mainly VFR, but restrictions in SHSN Northern and
Western Mountains. Continued breezy.

Sat...Mainly VFR.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from late tonight through Wednesday evening
for PAZ053-057>059-065-066.

&&

SYNOPSIS...Steinbugl
NEAR TERM...Ross/Steinbugl
SHORT TERM...Steinbugl
LONG TERM...Steinbugl
AVIATION...Jung/RXR
Hazardous weather outlook, Mar 6, 4:37 AM EST, 7 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
437 AM EST Tue Mar 6 2018

PAZ004>006-010-011-017-024-033-037-070945-
Warren-McKean-Potter-Elk-Cameron-Clearfield-Cambria-Somerset-Tioga-
437 AM EST Tue Mar 6 2018

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and Tonight.

A light snowfall is likely tonight with a slushy coating to 1 inch
accumulation.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Periods of snow will continue through Thursday with a few to several
inches of accumulation possible by Friday morning.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ053-057>059-065-066-070945-
Columbia-Dauphin-Schuylkill-Lebanon-York-Lancaster-
437 AM EST Tue Mar 6 2018

...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
EVENING...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today 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.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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...

Spotters are encouraged to report significant hazardous weather.

PAZ028-041-042-046-049>052-056-063-064-070945-
Juniata-Northern Lycoming-Sullivan-Southern Lycoming-Union-Snyder-
Montour-Northumberland-Perry-Cumberland-Adams-
437 AM EST Tue Mar 6 2018

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and Tonight.

A light and elevation dependent snowfall is likely tonight with a
slushy coating to an inch or two of accumulation. Expect heavier
amounts over the higher elevations and lower amounts in the valleys.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Periods of snow will continue during the day Wednesday with an
additional light accumulation expected, especially along and east of
the Route 15 corridor.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ012-018-019-025>027-034>036-045-070945-
Northern Clinton-Northern Centre-Southern Centre-Blair-Huntingdon-
Mifflin-Bedford-Fulton-Franklin-Southern Clinton-
437 AM EST Tue Mar 6 2018

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and Tonight.

A light and elevation dependent snowfall is likely tonight with a
slushy coating to an inch of accumulation.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Periods of snow will continue during the day Wednesday with an
additional light accumulation likely, especially over the higher
elevations.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

MS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 4:21 PM ESTWinter Weather AdvisoryCTPAdams, Cambria, Clearfield, Columbia, Cumberland, Elk and 10 more22 hr

Nearby

Winter Storm Warnings in Pennsylvania, 2018Every winter storm warning in 2018

Sources

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