Alert archive / Pennsylvania / Winter Storm Watches in 2021

Winter Storm Watch 5, NWS State College, PA

February 13, 202111 counties in Pennsylvania

NWS State College, PA issued this winter storm watch at Feb 13, 2021, 3:07 PM EST for 11 counties in Pennsylvania. It took effect at Feb 15, 2021, 7:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 13, 2021, 3:07 PM EST (20:07 UTC)
In effect from
Feb 15, 2021, 7:00 AM EST
Expired
Feb 14, 2021, 3:46 PM EST
In force
Issued by
NWS State College, PA

Counties Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA

The radar

The State College radar (KCCX), 59 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 176 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 2021-02-13Temperature 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, Buffalo Intl Airport, NY at 12:00Z on 2021-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

202 
WWUS41 KCTP 132007
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
307 PM EST Sat Feb 13 2021

PAZ010-011-140815-
/O.NEW.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
/O.CON.KCTP.WW.Y.0013.210213T2200Z-210214T1300Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
307 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...
...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, mixed precipitation 
  expected. Total snow accumulations of up to one inch and ice 
  accumulations of a light glaze. For the Winter Storm Watch, 
  heavy snow possible. Total snow accumulations of 6 to 9 inches 
  possible.

* WHERE...Elk and Cameron Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST Sunday. 
  For the Winter Storm Watch, from Monday morning through 
  Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

Review winter weather safety and preparedness information at 
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ017-018-024>026-033>036-056>059-063-140815-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Clearfield-Northern Centre-Cambria-Blair-Huntingdon-Somerset-
Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-
Including the cities of DuBois, Clearfield, Philipsburg, 
Johnstown, Altoona, Huntingdon, Mount Union, Somerset, Bedford, 
McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, and Carlisle
307 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ012-019-027-028-045-049-050-140815-
/O.CON.KCTP.WW.Y.0013.210213T2200Z-210214T1300Z/
Northern Clinton-Southern Centre-Mifflin-Juniata-Southern Clinton-
Union-Snyder-
Including the cities of Renovo, State College, Lewistown, 
Mifflintown, Lock Haven, Lewisburg, and Selinsgrove
307 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ064>066-140815-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T0900Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
307 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...

* WHAT...Areas of freezing drizzle. Ice accumulations of a light 
  glaze.

* WHERE...Adams, York and Lancaster Counties.

* WHEN...Until 4 AM EST Sunday.

* IMPACTS...Very slippery sidewalks, roads and bridges are 
  possible.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ041-042-046-051>053-140815-
/O.CON.KCTP.WW.Y.0013.210213T2200Z-210214T1500Z/
Northern Lycoming-Sullivan-Southern Lycoming-Montour-
Northumberland-Columbia-
Including the cities of Trout Run, Laporte, Williamsport, 
Danville, Sunbury, Shamokin, Bloomsburg, and Berwick
307 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ004>006-037-140815-
/O.NEW.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
307 PM EST Sat Feb 13 2021

...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches possible.

* WHERE...Warren, McKean, Potter and Tioga Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

Jurewicz
5 follow-up statements
071 
WWUS41 KCTP 140234
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
934 PM EST Sat Feb 13 2021

PAZ010-011-141445-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
934 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, light mixed
  precipitation expected overnight. Total snow accumulations less
  than one inch and ice accumulations of a light glaze. For the 
  Winter Storm Watch, heavy snow possible. Total snow 
  accumulations of 6 to 9 inches possible.

* WHERE...Elk and Cameron Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST Sunday. 
  For the Winter Storm Watch, from Monday morning through 
  Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the NWS State
College Facebook page and Twitter @NWSStateCollege, or on the web
at weather.gov/ctp.

&&

$$

PAZ017-018-024>026-033>036-056>059-063-141300-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Clearfield-Northern Centre-Cambria-Blair-Huntingdon-Somerset-
Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-
Including the cities of DuBois, Clearfield, Philipsburg, 
Johnstown, Altoona, Huntingdon, Mount Union, Somerset, Bedford, 
McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, and Carlisle
934 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ012-019-027-028-045-049-050-141300-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Northern Clinton-Southern Centre-Mifflin-Juniata-Southern Clinton-
Union-Snyder-
Including the cities of Renovo, State College, Lewistown, 
Mifflintown, Lock Haven, Lewisburg, and Selinsgrove
934 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ064>066-140900-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T0900Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
934 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...

* WHAT...Areas of freezing drizzle. Ice accumulations of a light 
  glaze.

* WHERE...Adams, York and Lancaster Counties.

* WHEN...Until 4 AM EST Sunday.

* IMPACTS...The potential for slippery sidewalks, roads and 
  bridges.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ041-042-046-051>053-141445-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1500Z/
Northern Lycoming-Sullivan-Southern Lycoming-Montour-
Northumberland-Columbia-
Including the cities of Trout Run, Laporte, Williamsport, 
Danville, Sunbury, Shamokin, Bloomsburg, and Berwick
934 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
SUNDAY...

* WHAT...Light freezing drizzle with patchy light snow and 
  sleet. Ice accumulations of a light glaze, and snow and sleet 
  accumulations of less than an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST Sunday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Bridges and elevated road surfaces will 
  be most likely to have ice accretions.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ004>006-037-141445-
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
934 PM EST Sat Feb 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches possible.

* WHERE...Warren, McKean, Potter and Tioga Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the NWS State
College Facebook page and Twitter @NWSStateCollege, or on the web
at weather.gov/ctp.

&&

$$

Lambert
378 
WWUS41 KCTP 140630
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
130 AM EST Sun Feb 14 2021

PAZ010-011-141830-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
130 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle.
  Additional ice accumulations of a light glaze. For the Winter
  Storm Watch, heavy snow possible. Total snow accumulations of 6
  to 9 inches possible.

* WHERE...Elk and Cameron Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST this 
  morning. For the Winter Storm Watch, from Monday morning 
  through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the NWS State
College Facebook page and Twitter @NWSStateCollege, or on the web
at weather.gov/ctp.

&&

$$

PAZ017-018-024>026-033>036-056>059-063-141300-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Clearfield-Northern Centre-Cambria-Blair-Huntingdon-Somerset-
Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-
Including the cities of DuBois, Clearfield, Philipsburg, 
Johnstown, Altoona, Huntingdon, Mount Union, Somerset, Bedford, 
McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, and Carlisle
130 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST this morning.

* IMPACTS...Slippery roads and sidewalks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ012-019-027-028-045-049-050-141300-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Northern Clinton-Southern Centre-Mifflin-Juniata-Southern Clinton-
Union-Snyder-
Including the cities of Renovo, State College, Lewistown, 
Mifflintown, Lock Haven, Lewisburg, and Selinsgrove
130 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST this morning.

* IMPACTS...Slippery roads and sidewalks. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ064>066-140900-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T0900Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
130 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST EARLY
THIS MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Lancaster, York and Adams Counties.

* WHEN...Until 4 AM EST early this morning.

* IMPACTS...Slippery roads and sidewalks. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ041-042-046-051>053-141500-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1500Z/
Northern Lycoming-Sullivan-Southern Lycoming-Montour-
Northumberland-Columbia-
Including the cities of Trout Run, Laporte, Williamsport, 
Danville, Sunbury, Shamokin, Bloomsburg, and Berwick
130 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Slippery roads and sidewalks. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission remind motorists to expect slippery
conditions as freezing rain impacts the area.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ004>006-037-141830-
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
130 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches.

* WHERE...McKean, Tioga, Warren and Potter Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$
MS/MC
336 
WWUS41 KCTP 140920
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
420 AM EST Sun Feb 14 2021

PAZ064>066-141030-
/O.EXP.KCTP.WW.Y.0013.000000T0000Z-210214T0900Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Patchy freezing drizzle has ended in most places, but remain alert
for slick spots on untreated roads and sidewalks. 

$$

PAZ041-042-046-150000-
/O.EXA.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
/O.EXT.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Northern Lycoming-Sullivan-Southern Lycoming-
Including the cities of Trout Run, Laporte, and Williamsport
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM EST THIS
MORNING...
...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle.
  Additional ice accumulations of a light glaze. For the Winter
  Storm Watch, heavy mixed precipitation possible. Total snow and
  sleet accumulations of up to 6 inches and ice accumulations of 
  a glaze possible.

* WHERE...Northern Lycoming, Sullivan and Southern Lycoming 
  Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST this 
  morning. For the Winter Storm Watch, from Monday morning 
  through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Sunday morning, Monday evening, and
  Tuesday morning commutes.

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. Call 5 1 1 or visit www.511pa.com for the latest 
travel, roadway and traffic conditions.

Review winter weather safety and preparedness information at 
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ051>053-141300-
/O.EXT.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Montour-Northumberland-Columbia-
Including the cities of Danville, Sunbury, Shamokin, Bloomsburg, 
and Berwick
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Northumberland, Columbia and Montour Counties.

* WHEN...Until 8 AM EST this morning.

* IMPACTS...Slippery roads and sidewalks. 

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

&&

$$

PAZ012-017>019-045-150000-
/O.EXA.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Northern Clinton-Clearfield-Northern Centre-Southern Centre-
Southern Clinton-
Including the cities of Renovo, DuBois, Clearfield, Philipsburg, 
State College, and Lock Haven
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...
...WINTER STORM WATCH IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle.
  Additional ice accumulations of a light glaze. For the Winter
  Storm Watch, heavy mixed precipitation possible. Total snow and
  sleet accumulations of up to 6 inches and ice accumulations of 
  a glaze possible.

* WHERE...Northern Clinton, Clearfield, Northern Centre, 
  Southern Centre and Southern Clinton Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST this 
  morning. For the Winter Storm Watch, from Monday morning 
  through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Sunday morning, Monday morning and
  evening, and Tuesday morning commutes.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ010-011-150000-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...
...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle. 
  Additional ice accumulations of a light glaze. For the Winter 
  Storm Watch, heavy snow possible. Total snow accumulations of 
  6 to 9 inches possible.

* WHERE...Elk and Cameron Counties.

* WHEN...For the Winter Weather Advisory, until 8 AM EST this 
  morning. For the Winter Storm Watch, from Monday morning 
  through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Sunday morning, Monday morning and
  evening, and Tuesday morning commutes.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ024>028-033>036-049-050-056>059-063-141300-
/O.CON.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-
Franklin-Union-Snyder-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Including the cities of Johnstown, Altoona, Huntingdon, 
Mount Union, Lewistown, Mifflintown, Somerset, Bedford, 
McConnellsburg, Chambersburg, Lewisburg, Selinsgrove, Newport, 
Harrisburg, Hershey, Pottsville, Lebanon, and Carlisle
420 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...Freezing drizzle. Additional ice accumulations of a 
  light glaze.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 8 AM EST this morning.

* IMPACTS...Slippery roads and sidewalks. 

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

&&

$$

PAZ004>006-037-150000-
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
420 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches possible.

* WHERE...McKean, Tioga, Warren and Potter Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday morning, Monday evening, and
  Tuesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

MS/MC
076 
WWUS41 KCTP 141313
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
813 AM EST Sun Feb 14 2021

PAZ012-017>019-041-042-045-046-150115-
/O.EXP.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Northern Clinton-Clearfield-Northern Centre-Southern Centre-
Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-
Including the cities of Renovo, DuBois, Clearfield, Philipsburg, 
State College, Trout Run, Laporte, Lock Haven, and Williamsport
813 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...
...WINTER WEATHER ADVISORY HAS EXPIRED...

* WHAT...Heavy mixed precipitation possible. Total snow 
  accumulations of 5 to 7 inches and ice accumulations of a 
  light glaze possible.

* WHERE...Portions of central Pennsylvania.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday morning, Monday evening, and
  Tuesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ010-011-150115-
/O.EXP.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
813 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...
...WINTER WEATHER ADVISORY HAS EXPIRED...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches possible.

* WHERE...Elk and Cameron Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday morning, Monday evening, and
  Tuesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

PAZ024>028-033>036-049>053-056>059-063-141415-
/O.EXP.KCTP.WW.Y.0013.000000T0000Z-210214T1300Z/
Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-
Franklin-Union-Snyder-Montour-Northumberland-Columbia-Perry-
Dauphin-Schuylkill-Lebanon-Cumberland-
Including the cities of Johnstown, Altoona, Huntingdon, 
Mount Union, Lewistown, Mifflintown, Somerset, Bedford, 
McConnellsburg, Chambersburg, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, and Carlisle
813 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Some icy spots will remain on untreated roads and bridges through
mid-morning until the warming of the sun helps to melt any 
remaining ice on the roads. 

Bridges are most likely to have ice on them since the air 
surrounding the entire bridge deck is well below freezing.

Please use extra care driving across the region this morning. 
Assume that any roadway or bridge which appears wet may indeed be 
icy. Sidewalks may also be slick.

$$

PAZ004>006-037-150115-
/O.CON.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
813 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 9 
  inches possible.

* WHERE...McKean, Warren, Potter and Tioga Counties.

* WHEN...From Monday morning through Tuesday afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the Monday morning, Monday evening, and
  Tuesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$
112 
WWUS41 KCTP 142046
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
346 PM EST Sun Feb 14 2021

PAZ004>006-037-150900-
/O.UPG.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
/O.NEW.KCTP.WS.W.0004.210215T1200Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
346 PM EST Sun Feb 14 2021

...WINTER STORM WARNING IN EFFECT FROM 7 AM MONDAY TO 1 PM EST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 to 9 
  inches.

* WHERE...Warren, McKean, Potter, and Tioga Counties.

* WHEN...From 7 AM Monday to 1 PM EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...A period of light snow is anticipated
  during the morning and early afternoon Monday, with steadier,
  heavier snow expected Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The Pennsylvania Department of Transportation and Pennsylvania
Turnpike Commission strongly encourage motorists to heed all
travel restrictions and delay unnecessary travel as significant
winter weather conditions will make travel very hazardous.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ010>012-017>019-041-042-045-046-150900-
/O.UPG.KCTP.WS.A.0005.210215T1200Z-210216T1800Z/
/O.NEW.KCTP.WW.Y.0014.210215T1200Z-210216T1800Z/
Elk-Cameron-Northern Clinton-Clearfield-Northern Centre-
Southern Centre-Northern Lycoming-Sullivan-Southern Clinton-
Southern Lycoming-
Including the cities of St. Marys, Ridgway, Emporium, Renovo, 
DuBois, Clearfield, Philipsburg, State College, Trout Run, 
Laporte, Lock Haven, and Williamsport
346 PM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM MONDAY TO 1 PM EST
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 4 to 7 inches and ice accumulations of a light glaze.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 7 AM Monday to 1 PM EST Tuesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Mainly snow is expected Monday and early
  Monday evening, with a mixture of snow, sleet, and freezing 
  rain late Monday night.

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ024>028-049>053-150900-
/O.NEW.KCTP.WW.Y.0014.210215T1200Z-210216T1800Z/
Cambria-Blair-Huntingdon-Mifflin-Juniata-Union-Snyder-Montour-
Northumberland-Columbia-
Including the cities of Johnstown, Altoona, Huntingdon, 
Mount Union, Lewistown, Mifflintown, Lewisburg, Selinsgrove, 
Danville, Sunbury, Shamokin, Bloomsburg, and Berwick
346 PM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM MONDAY TO 1 PM EST
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of up to one tenth of 
  an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 7 AM Monday to 1 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...Mainly snow is expected on Monday into
  early Monday evening, with a mixture of sleet and freezing rain
  for most of Monday night. 

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ064>066-150900-
/O.NEW.KCTP.WW.Y.0014.210215T2100Z-210216T1800Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
346 PM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM MONDAY TO 1 PM EST
TUESDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to one inch and ice accumulations of one tenth to two 
  tenths of an inch.

* WHERE...Adams, York, and Lancaster Counties.

* WHEN...From 4 PM Monday to 1 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...A mixture of snow, sleet, and freezing rain
  will develop late in the day Monday. Mixed sleet and freezing
  rain Monday night, may even change over to plain rain for a time
  during the pre-dawn hours.  

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.

Call 5 1 1 or visit www.511pa.com for the latest travel, roadway
and traffic conditions.

To report snow or ice, post to the NWS State College Facebook
page, use Twitter @NWSStateCollege, or visit weather.gov/ctp.

&&

$$

PAZ033>036-056>059-063-150900-
/O.NEW.KCTP.WS.A.0006.210215T2100Z-210216T1800Z/
Somerset-Bedford-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-
Cumberland-
Including the cities of Somerset, Bedford, McConnellsburg, 
Chambersburg, Newport, Harrisburg, Hershey, Pottsville, Lebanon, 
and Carlisle
346 PM EST Sun Feb 14 2021

...WINTER STORM WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy mixed precipitation possible. Total snow
  accumulations of up to two inches and ice accumulations of one
  tenth to two tenths of an inch, with locally greater than a
  quarter of an inch, mainly over the higher terrain. 

* WHERE...Portions of central Pennsylvania.

* WHEN...From Monday afternoon through Tuesday afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

* ADDITIONAL DETAILS...The best potential for sustained freezing
  rain is Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is the potential for significant winter weather that may
impact travel.

Review winter weather safety and preparedness information at
weather.gov/winter.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

Jurewicz/Wagner

What forecasters said that day

The local office's own words before this winter storm watch 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 watch went out at Feb 13, 3:01 PM EST, 6 minutes earlier.

Area forecast discussion, Feb 13, 3:01 PM EST, 6 minutes before
Area Forecast Discussion
National Weather Service State College PA
301 PM EST Sat Feb 13 2021

.SYNOPSIS...
A gradual turn from mainly fast zonal flow aloft to a ridge
east and trough west of the area will bring many weather systems
through the state over the next week or more. Temperatures are
forecast to remain below average into the second half of
February.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
Spotty, light mixed precip across the region right now and
expect it to continue for pretty much all of the near term. The
moisture and uplift and upslope flow will maximize in the first
half of the night, making this the most-likely time for any
minor accumulations of snow/sleet and any glaze of ice to
occur. Nightfall will make the possibility of DZ freezing on
roads more possible. Will continue to consider an advy for a
light accum of freezing rain, and may issue one shortly if
confidence increases only the slightest bit. Would likely not
split hairs on where, and just carpet bomb, perhaps starting
the wrn mtns first then expanding to the rest of the area. It
would likely only last thru sunrise or shortly after as llvl
flow become drier from the W/NW in the morning. Temps go almost
nowhere overnight.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH 6 PM SUNDAY/...
The wind from the west should dry things out, but little
sunshine is expected with a deep inversion and moisture trapped
under it. Some sun could peek thru in the west later in the day.
Will keep mentions of precip to the early morning, and mainly in
the east and upslope of the Laurels.

&&

.LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/...
An active weather pattern will continue into the long-term, as
Pennsylvania remains in the vicinity of baroclinic zone between
an anomalous upper-level trough over the Plains states and a
ridge off of the East Coast.

The likelihood is increasing for an impactful winter storm
Monday into Tuesday. This storm will come in two waves: the
first Sunday overnight into Monday morning, associated
with jet streak over the St Lawrence Valley and associated fgen
forcing over PA. This will be followed by a lull in precip
Monday afternoon, then the heaviest precip arrives Monday night
to Tuesday with a wave of low pressure lifting out of the Gulf
of Mexico. This moisture-laden system will ride northward along
the spine of the Appalachians before transferring energy to the
Mid- Atlantic Coast on Tues. Models are coming to a consensus on
general gist of this system, with significant snowfall
accumulations (>6" possible) primarily north of I-80 and a
wintry mix over to rain in SE PA. There is the chance for a
brief period of freezing rain in the far SE zones Tuesday
morning, but amounts seem to not be too significant at this
time. Models have been trending warmer, so this is an area to
watch. Expect a tight gradient between the heavier snow amounts
and areas with no snow, but some uncertainty exists in where
this gradient will set-up. This could mean the difference
between little to nothing or several inches of snow for areas
between the I-80 and I-81 corridors, so we will keep an eye on
model updates and the pattern in the gradient. Headlines should
be coming out for the Northern Tier of PA, and as confidence
increases those headlines may be extended southward.

This system will exit the area later Tues afternoon, followed
by a brief period of fair and seasonable weather for Wednesday
as upper level ridging builds into the region. By late week,
medium range guidance is indicating another significant area of
low pressure will track northward from the Gulf Coast towards
PA..This system Thursday/Friday compared to the Monday/Tuesday
system seems to be wetter but warmer based on the latest
guidance, making it a wintry mix/rain scenario for the entire
CWA. There is good potential for some kind of impactful precip,
but it is still too early to make a final determination on the
type of precip right now.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
Cigs lowering all over under llvl E/SE flow which will become
more southerly into the evening. Clouds are heavy with precip,
so they may spit something out (snizzle?) at just about any
time. P-type very uncertain with no seeding with ice crystals
expected over most of the area. All terminals should be
decreasing into IFC this evening, with improvement not expected
until morning for most. Some may get into LIFR. The very light,
patchy mixed precip out there now will become likely for all of
the area tonight. Very little if any improvement is expected
thru the night as wind goes light and weak upslope flow will
continue. Little accums of snow/sleet/ice are expected, though.
De-icing will be likely/necessary due to the deep layer of
super-cooled clouds which will be encountered on arrival and
departure. Despite the gradual veering from E-S-W thru the
lowest 6-8kft, the worst shear in wind dir or speed would be
aloft and not near the sfc.

Some improvement to mainly MVFR cigs and nil precip should occur
in the morning on Sunday. Inversion remains in place, though and
clouds may only lift slightly. A couple of breaks may occur in
the OVC before 18Z, but not likely. Some drying is expected in
the aftn, with the wrn terminals with the greatest poss of
seeing some sun. Clouds increase again from the SW Sun night,
lowering and thickening. Precip (SN) will spread in on Monday as
a decent wave aloft lifts in from the TN/OH valleys. Sig accums
are possible for all but MDT/LNS.

Outlook...

Mon-Tue AM...LIFR in snow/mixed precip, esp NW.

Tues PM-Wed...IFR mainly NW, then improving to VFR/MVFR
briefly.

Thu...Restrictions likely. Wintry mix, may change to rain SE.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 10 AM EST Sunday for PAZ041-042-
046-051>053.
Winter Weather Advisory until 8 AM EST Sunday for PAZ017-018-
024>026-033>036-056>059-063.
Winter Weather Advisory until 8 AM EST Sunday for PAZ010>012-
019-027-028-045-049-050.
Winter Weather Advisory until 4 AM EST Sunday for PAZ064>066.

&&

SYNOPSIS...Dangelo
NEAR TERM...Dangelo
SHORT TERM...Dangelo
LONG TERM...Jurewicz/Wagner
AVIATION...Dangelo/Colbert
Hazardous weather outlook, Feb 13, 2:58 PM EST, 9 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
258 PM EST Sat Feb 13 2021

PAZ064>066-142000-
Adams-York-Lancaster-
258 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM EST SUNDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A pair of winter storms could bring ice or snow Monday into Tuesday
and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ041-042-046-051>053-142000-
Northern Lycoming-Sullivan-Southern Lycoming-Montour-Northumberland-
Columbia-
258 PM EST Sat Feb 13 2021

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

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ017-018-024>026-033>036-056>059-063-142000-
Clearfield-Northern Centre-Cambria-Blair-Huntingdon-Somerset-Bedford-
Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
258 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM EST SUNDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ012-019-027-028-045-049-050-142000-
Northern Clinton-Southern Centre-Mifflin-Juniata-Southern Clinton-
Union-Snyder-
258 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM EST SUNDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ037-142000-
Tioga-
258 PM EST Sat Feb 13 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Patchy freezing drizzle is possible tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004>006-142000-
Warren-McKean-Potter-
258 PM EST Sat Feb 13 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Patchy freezing drizzle is possible tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ010-011-142000-
Elk-Cameron-
258 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM EST SUNDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.

A pair of winter storms could bring significant snow and ice Monday
into Tuesday and Thursday into Friday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Special weather statement, Feb 13, 12:06 PM EST, 3 hours 1 minute before
Special Weather Statement
National Weather Service State College PA
1206 PM EST Sat Feb 13 2021

PAZ024-033-034-132015-
Cambria-Somerset-Bedford-
1206 PM EST Sat Feb 13 2021

...PATCHES OF ICE POSSIBLE ON UNTREATED BRIDGES AND ROADS...

Very light precipitation and fog could be making untreated roads
across the Laurel Highlands slippery. The daylight and mild
ground temperatures will help to keep many roads just wet.

However, bridges are most likely to have ice on them since the
air surrounding the entire bridge deck is well below freezing
today.

Please use extra care today when driving across the region. Assume
that any roadway or bridge which appears wet may indeed be icy.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 2:53 PM ESTWinter Weather AdvisoryCTPAdams, Bedford, Blair, Cambria, Cameron, Centre and 23 more17 hr

Nearby

Winter Storm Watches in Pennsylvania, 2021Every winter storm watch in 2021

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.