Alert archive / Pennsylvania / Ice Storm Warnings in 2021

Ice Storm Warning 2, NWS State College, PA

February 15, 202115 counties in Pennsylvania

NWS State College, PA issued this ice storm warning at Feb 15, 2021, 3:28 PM EST for 15 counties in Pennsylvania. It was in force for 15 hr. 10 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
Feb 15, 2021, 3:28 PM EST (20:28 UTC)
Expired
Feb 16, 2021, 6:11 AM EST
In force
15 hr
Issued by
NWS State College, PA

Counties Blair County, PA, Cambria County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Huntingdon County, PA, Juniata County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Union County, PA

The radar

The State College radar (KCCX), 50 km from the middle of the area, began a volume at 20:30 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
Feb 15, 9:30 PM ESTFREEZING RAIN 0.1Lemont, PA
Feb 15, 10:52 PM ESTFREEZING RAIN 0.2Muncy, PA
Feb 15, 11:45 PM ESTFREEZING RAIN 0.251 E Tower City, PAREPORTED IN TOWER CITY, PA.
Feb 16, 12:00 AM ESTFREEZING RAIN 0.13State College, PAREPORTED AT STATE COLLEGE, PA.
Feb 16, 12:00 AM ESTFREEZING RAIN 0.25Tower City, PA
Feb 16, 1:00 AM ESTFREEZING RAIN 0.18Montoursville, PA
Feb 16, 1:00 AM ESTFREEZING RAIN 0.251 N Selinsgrove, PA
Feb 16, 1:00 AM ESTFREEZING RAIN 0.263 Ne Geistown, PA
Feb 16, 1:00 AM ESTFREEZING RAIN 0.41 Sse Martinsburg, PA
Feb 16, 1:30 AM ESTFREEZING RAIN 0.483 Nnw Ski Gap, 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, 8.5 hours before the alert went out and 201 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 2021-02-15Temperature 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, Washington/Dulle, VA at 12:00Z on 2021-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
929 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

230 
WWUS41 KCTP 152028
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
328 PM EST Mon Feb 15 2021

PAZ019-024>028-033-045-046-049>053-058-160830-
/O.UPG.KCTP.WW.Y.0014.000000T0000Z-210216T1800Z/
/O.NEW.KCTP.IS.W.0002.210215T2028Z-210216T1500Z/
Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
Including the cities of State College, Johnstown, Altoona, 
Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, 
Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, Berwick, and Pottsville
328 PM EST Mon Feb 15 2021

...ICE STORM WARNING IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing. Additional snow and sleet
  accumulations of up to two inches, and ice accumulations 
  between one quarter and one half of an inch.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be nearly impossible. The hazardous conditions
  could impact the morning commute.

* ADDITIONAL DETAILS...As precipitation moves in this evening, it
  will start as a little snow and sleet, then quickly turn to a 
  mix of sleet and freezing rain, and then to predominantly 
  freezing rain which will last for much of the rest of the night.
  Some areas may warm enough to turn to plain rain before ending.
  

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 severe winter
weather conditions will make travel very hazardous. If you must
travel, keep an extra flashlight, food and water in your vehicle
in case of an emergency.

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.

&&

$$

PAZ012-017-018-041-042-160830-
/O.UPG.KCTP.WW.Y.0014.000000T0000Z-210216T1800Z/
/O.EXA.KCTP.WS.W.0004.000000T0000Z-210216T1800Z/
Northern Clinton-Clearfield-Northern Centre-Northern Lycoming-
Sullivan-
Including the cities of Renovo, DuBois, Clearfield, Philipsburg, 
Trout Run, and Laporte
328 PM EST Mon Feb 15 2021

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow and sleet
  accumulations of 2 to 3 inches and ice accumulations of one
  tenth to three tenths of an inch. Most of the accumulation will
  be sleet followed by freezing rain. 

* WHERE...Northern Clinton, Clearfield, Northern Centre, 
  Northern Lycoming and Sullivan Counties.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be nearly impossible. The hazardous conditions
  could impact the morning commute.

* ADDITIONAL DETAILS...As precipitation moves in this evening, it
  will start as snow and then mix with sleet before 10 PM, and
  then to a long period of sleet and freezing rain which will last
  for much of the rest of the 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.

&&

$$

PAZ004>006-037-160830-
/O.CON.KCTP.WS.W.0004.000000T0000Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
328 PM EST Mon Feb 15 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow and sleet 
  accumulations of 3 to 5 inches and ice accumulations of up to 
  one tenth of an inch.

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

* WHEN...Until 1 PM EST Tuesday.

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

* ADDITIONAL DETAILS...Snow this evening may be heavy for brief
  times. The snow will then mix with and turn to sleet for much of
  the overnight. Some freezing rain is also possible by morning. 

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.

&&

$$

PAZ010-011-160830-
/O.CON.KCTP.WS.W.0004.000000T0000Z-210216T1800Z/
Elk-Cameron-
Including the cities of St. Marys, Ridgway, and Emporium
328 PM EST Mon Feb 15 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow accumulations
  of 2 to 3 inches and ice accumulations of up to two tenths of an
  inch. Much of the accumulation will be sleet before the freezing
  rain.

* WHERE...Elk and Cameron Counties.

* WHEN...Until 1 PM EST Tuesday.

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

* ADDITIONAL DETAILS...Snow this evening may be heavy for brief
  times. The snow will then mix with and turn to sleet for much of
  the overnight. Some freezing rain is also possible by morning.

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.

&&

$$

PAZ034>036-056-057-059-063-160830-
/O.EXT.KCTP.WW.Y.0014.000000T0000Z-210216T1500Z/
Bedford-Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-
Including the cities of Bedford, McConnellsburg, Chambersburg, 
Newport, Harrisburg, Hershey, Lebanon, and Carlisle
328 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM EST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow and sleet
  accumulations of less than one inch, and ice accumulations of
  one tenth to one quarter of an inch. Some higher ice amounts are
  possible on the higher elevations. 

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are possible due to the
  ice. Travel could be difficult. The hazardous conditions could 
  impact the morning commute.

* ADDITIONAL DETAILS...Any snow or sleet will turn to freezing
  rain and last through 3 AM or 4 AM before turning to plain rain.
  The higher elevations will have the freezing rain last longer.
  The rain will taper off just after sunrise.
  

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>066-160830-
/O.EXT.KCTP.WW.Y.0014.000000T0000Z-210216T1200Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
328 PM EST Mon Feb 15 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM EST TUESDAY...

* WHAT...Mixed precipitation. Snow and sleet accumulations of less
  than inch, and ice accumulations of one tenth of an inch or less.

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

* WHEN...Until 7 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. 

* ADDITIONAL DETAILS...Any initial snow or sleet will be very
  brief. There will be a period of freezing rain before turning to
  plain rain early in the night. The higher elevations may have
  freezing rain last longer into the 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.

&&

$$
3 follow-up statements
586 
WWUS41 KCTP 160353
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
1053 PM EST Mon Feb 15 2021

PAZ019-024>028-033-045-046-049>053-058-161500-
/O.CON.KCTP.IS.W.0002.000000T0000Z-210216T1500Z/
Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
Including the cities of State College, Johnstown, Altoona, 
Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, 
Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, Berwick, and Pottsville
1053 PM EST Mon Feb 15 2021

...ICE STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST TUESDAY...

* WHAT...Significant icing. Ice accumulations around one half of 
  an inch in many locations.

* WHERE...Central Pennsylvania and the Middle and West Branch
  Susquehanna Valley.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the
  ice. Travel could be nearly impossible. The hazardous conditions
  will impact the morning commute.

* ADDITIONAL DETAILS...Freezing rain of varying intensity will
  continue through the predawn hours of Tuesday as temperatures
  slowly rise in the upper 20s to low 30s. Some areas may warm
  just enough to turn to plain rain before ending around 
  daybreak.

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 severe winter
weather conditions will make travel very hazardous. If you must
travel, keep an extra flashlight, food and water in your vehicle
in case of an emergency.

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>006-037-161600-
/O.CON.KCTP.WS.W.0004.000000T0000Z-210216T1800Z/
Warren-McKean-Potter-Tioga-
Including the cities of Warren, Bradford, Coudersport, Mansfield,
and Wellsboro
1053 PM EST Mon Feb 15 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional snow and sleet
  accumulations of 2 to 4 inches and ice accumulations of up to
  two tenths of an inch.

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

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the morning commute. Scattered power
  outages and tree damage are possible due to the ice.

* ADDITIONAL DETAILS...After a period of snow and sleet at the
  onset, and tail end of the storm, most of the precipitation
  overnight tonight will fall as a mix of moderate to 
  occasionally heavy sleet and freezing rain.

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>012-017-018-041-042-161600-
/O.CON.KCTP.WS.W.0004.000000T0000Z-210216T1800Z/
Elk-Cameron-Northern Clinton-Clearfield-Northern Centre-
Northern Lycoming-Sullivan-
Including the cities of St. Marys, Ridgway, Emporium, Renovo, 
DuBois, Clearfield, Philipsburg, Trout Run, and Laporte
1053 PM EST Mon Feb 15 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
TUESDAY...

* WHAT...Heavy mixed precipitation. Additional sleet accumulations
  around 1 inch and ice accumulations of two to three tenths of 
  an inch. Most of the accumulation will be sleet followed by 
  freezing rain.

* WHERE...Northern Clinton, Clearfield, Northern Centre, 
  Northern Lycoming and Sullivan Counties.

* WHEN...Until 1 PM EST Tuesday.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be nearly impossible. The hazardous 
  conditions could impact the morning commute.

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.

&&

$$

PAZ034>036-056-057-059-063-161500-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-210216T1500Z/
Bedford-Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-
Including the cities of Bedford, McConnellsburg, Chambersburg, 
Newport, Harrisburg, Hershey, Lebanon, and Carlisle
1053 PM EST Mon Feb 15 2021

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

* WHAT...Freezing rain of varying intensity changing to plain rain
  and drizzle during the predawn hours. Additional ice
  accumulations of 1 to 2 tenths of an inch. Some higher ice
  amounts are possible on the ridge tops to the northwest of
  Interstate 81.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 10 AM EST Tuesday.

* IMPACTS...Scattered power outages and tree damage are possible 
  due to the ice. Travel could be difficult. The hazardous 
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...The rain and lingering pockets of freezing
  rain will taper off around or just after sunrise.

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>066-161200-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-210216T1200Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
1053 PM EST Mon Feb 15 2021

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

* WHAT...Freezing rain and rain of varying intensity changing to
  plain rain and drizzle during the predawn hours. Additional ice
  accumulations of around 1 tenth of an inch. Some higher ice
  amounts are possible on the ridge tops.

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

* WHEN...Until 7 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...The rain will taper off around or just
  before sunrise.

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.

&&

$$

Lambert
686 
WWUS41 KCTP 160818
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
318 AM EST Tue Feb 16 2021

PAZ019-024>028-033-045-046-049>053-058-161200-
/O.EXT.KCTP.IS.W.0002.000000T0000Z-210216T1200Z/
Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
Including the cities of State College, Johnstown, Altoona, 
Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, 
Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, Berwick, and Pottsville
318 AM EST Tue Feb 16 2021

...ICE STORM WARNING NOW IN EFFECT UNTIL 7 AM EST THIS MORNING...

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

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Very slippery roads and sidewalks. 

* ADDITIONAL DETAILS...Significant icing has ended. Expect patchy
  light freezing rain or drizzle early this morning. 

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 severe winter
weather conditions will make travel very hazardous. If you must
travel, keep an extra flashlight, food and water in your vehicle
in case of an emergency.

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>006-010>012-017-018-037-041-042-161200-
/O.EXT.KCTP.WS.W.0004.000000T0000Z-210216T1200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Tioga-Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, 
Mansfield, Wellsboro, Trout Run, and Laporte
318 AM EST Tue Feb 16 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 AM EST THIS
MORNING...

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

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Significant icing has ended. Expect patchy
  light freezing rain or drizzle early this morning. 

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.

&&

$$

PAZ034>036-056-057-059-063-161200-
/O.EXT.KCTP.WW.Y.0014.000000T0000Z-210216T1200Z/
Bedford-Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-
Including the cities of Bedford, McConnellsburg, Chambersburg, 
Newport, Harrisburg, Hershey, Lebanon, and Carlisle
318 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Additional ice accumulations of a light glaze in spots.

* WHERE...Portions of south central Pennsylvania.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Slick spots on untreated roads and surfaces. 

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>066-161200-
/O.CON.KCTP.WW.Y.0014.000000T0000Z-210216T1200Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
318 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Additional ice accumulations of a light glaze in spots.

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

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Slick spots on untreated roads and surfaces. 

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.

&&

$$

MS/MC
113 
WWUS41 KCTP 161111
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
611 AM EST Tue Feb 16 2021

PAZ019-024>028-033-045-046-049>053-058-161215-
/O.CAN.KCTP.IS.W.0002.000000T0000Z-210216T1200Z/
Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
Including the cities of State College, Johnstown, Altoona, 
Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, 
Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, Berwick, and Pottsville
611 AM EST Tue Feb 16 2021

...ICE STORM WARNING IS CANCELLED...

Precipitation has ended with no additional ice accumulation 
expected. Watch out for slick spots on untreated roads and 
sidewalks. 

$$

PAZ004>006-010>012-017-018-037-041-042-161215-
/O.CAN.KCTP.WS.W.0004.000000T0000Z-210216T1200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Tioga-Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, 
Mansfield, Wellsboro, Trout Run, and Laporte
611 AM EST Tue Feb 16 2021

...WINTER STORM WARNING IS CANCELLED...

Precipitation has ended with no additional ice accumulation 
expected. Watch out for slick spots on untreated roads and 
sidewalks. 

$$

PAZ034>036-056-057-059-063>066-161215-
/O.CAN.KCTP.WW.Y.0014.000000T0000Z-210216T1200Z/
Bedford-Fulton-Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-
York-Lancaster-
Including the cities of Bedford, McConnellsburg, Chambersburg, 
Newport, Harrisburg, Hershey, Lebanon, Carlisle, Gettysburg, 
York, and Lancaster
611 AM EST Tue Feb 16 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Precipitation has ended with no additional ice accumulation 
expected. Watch out for slick spots on untreated roads and 
sidewalks. 

$$

MRS

Nearby

Ice Storm Warnings in Pennsylvania, 2021Every ice storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.