Alert archive / Pennsylvania / Wind Chill Warnings in 2019

Wind Chill Warning 1, NWS State College, PA

January 20, 201911 counties in Pennsylvania

NWS State College, PA issued this wind chill warning at Jan 20, 2019, 4:06 AM EST for 11 counties in Pennsylvania. It took effect at Jan 20, 2019, 1:00 PM EST. It was in force for 30 hr. 1 report 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
Jan 20, 2019, 4:06 AM EST (09:06 UTC)
In effect from
Jan 20, 2019, 1:00 PM EST
Expired
Jan 21, 2019, 6:52 PM EST
In force
30 hr
Issued by
NWS State College, PA

Counties Cambria County, PA, Cameron County, PA, Clinton County, PA, Elk County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA

The radar

The State College radar (KCCX), 44 km from the middle of the area, began a volume at 09:09 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
Jan 20, 1:41 PM ESTSNOW 7.1Woolrich, PA

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

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.1 hours before the alert went out and 187 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 00:00Z on 2019-01-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2019-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 666 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
666 m²/s²
0-3 km storm-relative helicity
698 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

554 
WWUS41 KCTP 200906
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
406 AM EST Sun Jan 20 2019

PAZ064>066-202000-
/O.CAN.KCTP.WW.Y.0007.000000T0000Z-190120T1800Z/
/O.NEW.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
406 AM EST Sun Jan 20 2019

...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills as 
  low as 15 below zero.

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

* WHEN...From 7 PM this evening to 1 PM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills could result in
  frostbite and hypothermia if precautions are not taken. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ004>006-010>012-037-041-042-202000-
/O.NEW.KCTP.WC.W.0001.190120T1800Z-190122T0000Z/
/O.CON.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run, 
and Laporte
406 AM EST Sun Jan 20 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WIND CHILL WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EST MONDAY...

* WHAT...Heavy mixed precipitation and dangerously cold wind 
  chills expected. Additional snow accumulations of 3 to 5 inches 
  and ice accumulations of a light glaze are expected. Expect wind
  chills as low as 30 below zero.

* WHERE...North-central Pennsylvania.

* WHEN...Snow or wintry mix of varying intensity will continue
  this morning and end by midday. Minimum wind chills expected 
  tonight into early Monday morning. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. The
  cold wind chills could cause frostbite on exposed skin in as
  little as 15 minutes.

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.

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. Wear a hat and gloves.

&&

$$

PAZ045-046-202000-
/O.NEW.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
/O.CON.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
Southern Clinton-Southern Lycoming-
Including the cities of Lock Haven and Williamsport
406 AM EST Sun Jan 20 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST MONDAY...

* WHAT...Heavy mixed precipitation. Dangerously cold wind chills
  expected. Additional snow accumulations of up to one inch and
  ice accumulations of up to one tenth of an inch are expected.
  Expect wind chills as low as 20 below zero.

* WHERE...Southern Clinton and Southern Lycoming Counties.

* WHEN...Mixed precipitation will continue this morning and end 
  by midday. Minimum wind chills tonight into early Monday 
  morning. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

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.

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ017>019-024>028-049>053-202000-
/O.NEW.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
/O.CON.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
Clearfield-Northern Centre-Southern Centre-Cambria-Blair-
Huntingdon-Mifflin-Juniata-Union-Snyder-Montour-Northumberland-
Columbia-
Including the cities of DuBois, Clearfield, Philipsburg, 
State College, Johnstown, Altoona, Huntingdon, Mount Union, 
Lewistown, Mifflintown, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, and Berwick
406 AM EST Sun Jan 20 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST MONDAY...

* WHAT...Mixed precipitation. Dangerously cold wind chills
  expected. Additional snow accumulations up to an inch and ice
  accumulations of around one tenth are expected. Expect wind
  chills as low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Mixed precipitation will continue this morning and end 
  by midday. Minimum wind chills tonight into early Monday 
  morning. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

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.

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ033>035-202000-
/O.NEW.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
/O.CON.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
Somerset-Bedford-Fulton-
Including the cities of Somerset, Bedford, and McConnellsburg
406 AM EST Sun Jan 20 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST MONDAY...

* WHAT...Mixed precipitation. Dangerously cold wind chills
  expected. Additional snow accumulations up to an inch and ice
  accumulations of around one tenth are expected. Expect wind
  chills as low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Mixed precipitation will continue this morning and end 
  by midday. Minimum wind chills tonight into early Monday 
  morning. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

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. 

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ036-056>059-063-202000-
/O.NEW.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
/O.CON.KCTP.WW.Y.0007.000000T0000Z-190120T1800Z/
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Including the cities of Chambersburg, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, and Carlisle
406 AM EST Sun Jan 20 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST MONDAY...

* WHAT...Mixed precipitation. Very cold wind chills expected.
  Additional sleet accumulations of up to one half inch and a
  glaze of ice accumulation are expected. Expect wind chills as 
  low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Mixed precipitation will continue this morning and end 
  by midday. Minimum wind chills tonight into early Monday 
  morning. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. The
  cold wind chills could cause frostbite on exposed skin in as
  little as 30 minutes.

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.

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$
MS/PJ/JB
For more information from the National Weather Service visit 
http://weather.gov/ctp
5 follow-up statements
368 
WWUS41 KCTP 201508
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
1008 AM EST Sun Jan 20 2019



PAZ004>006-010>012-037-041-042-202315-
/O.CAN.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
/O.CON.KCTP.WC.W.0001.190120T1800Z-190122T0000Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run, 
and Laporte
1008 AM EST Sun Jan 20 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 7 PM EST MONDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 30 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 7 PM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. Wear a hat and gloves.

&&

$$

PAZ017>019-024>028-033>035-045-046-049>053-202315-
/O.CAN.KCTP.WS.W.0001.000000T0000Z-190120T1800Z/
/O.CON.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
Clearfield-Northern Centre-Southern Centre-Cambria-Blair-
Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-
Including the cities of DuBois, Clearfield, Philipsburg, 
State College, Johnstown, Altoona, Huntingdon, Mount Union, 
Lewistown, Mifflintown, Somerset, Bedford, McConnellsburg, 
Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, 
Sunbury, Shamokin, Bloomsburg, and Berwick
1008 AM EST Sun Jan 20 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST MONDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Dangerously cold wind chills expected. Expect wind chills
  as low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 7 PM this evening to 1 PM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ036-056>059-063-202315-
/O.CAN.KCTP.WW.Y.0007.000000T0000Z-190120T1800Z/
/O.CON.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Including the cities of Chambersburg, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, and Carlisle
1008 AM EST Sun Jan 20 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST MONDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills as 
  low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 7 PM this evening to 1 PM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ064>066-202315-
/O.CON.KCTP.WC.Y.0001.190121T0000Z-190121T1800Z/
Adams-York-Lancaster-
Including the cities of Gettysburg, York, and Lancaster
1008 AM EST Sun Jan 20 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills as 
  low as 15 below zero.

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

* WHEN...From 7 PM this evening to 1 PM EST Monday.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
208 
WWUS41 KCTP 210022
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
722 PM EST Sun Jan 20 2019


PAZ024-033-211200-
/O.UPG.KCTP.WC.Y.0001.000000T0000Z-190121T1800Z/
/O.EXB.KCTP.WC.W.0001.000000T0000Z-190121T1800Z/
Cambria-Somerset-
Including the cities of Johnstown and Somerset
722 PM EST Sun Jan 20 2019

...WIND CHILL WARNING IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 25 below zero.

* WHERE...Cambria and Somerset Counties.

* WHEN...Until 1 PM EST Monday. The lowest wind chills will be
  early Monday morning.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. 

&&

$$

PAZ004>006-010>012-037-041-042-211200-
/O.CON.KCTP.WC.W.0001.000000T0000Z-190122T0000Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run, 
and Laporte
722 PM EST Sun Jan 20 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 7 PM EST MONDAY...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 30 below zero.

* WHERE...The northern mountains of Pennsylvania.

* WHEN...Until 7 PM EST Monday. The lowest wind chills will be
  early Monday morning.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. 

&&

$$

PAZ017>019-025>028-034>036-045-046-049>053-056>059-063>066-211200-
/O.CON.KCTP.WC.Y.0001.000000T0000Z-190121T1800Z/
Clearfield-Northern Centre-Southern Centre-Blair-Huntingdon-
Mifflin-Juniata-Bedford-Fulton-Franklin-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of DuBois, Clearfield, Philipsburg, 
State College, Altoona, Huntingdon, Mount Union, Lewistown, 
Mifflintown, Bedford, McConnellsburg, Chambersburg, Lock Haven, 
Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, 
Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster
722 PM EST Sun Jan 20 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...Very cold wind chills expected. Expect wind chills as 
  low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 1 PM EST Monday. The lowest wind chills will be
  early Monday morning.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
966 
WWUS41 KCTP 210907
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
407 AM EST Mon Jan 21 2019

PAZ024-033-211715-
/O.CON.KCTP.WC.W.0001.000000T0000Z-190121T1800Z/
Cambria-Somerset-
Including the cities of Johnstown and Somerset
407 AM EST Mon Jan 21 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 25 below zero.

* WHERE...Cambria and Somerset Counties.

* WHEN...Until 1 PM EST this afternoon.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. Wear a hat and gloves.

&&

$$

PAZ004>006-010>012-037-041-042-211715-
/O.CON.KCTP.WC.W.0001.000000T0000Z-190122T0000Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run, 
and Laporte
407 AM EST Mon Jan 21 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 30 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 7 PM EST this evening.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. Wear a hat and gloves.

&&

$$

PAZ017>019-025>028-034>036-045-046-049>053-056>059-063>066-211715-
/O.CON.KCTP.WC.Y.0001.000000T0000Z-190121T1800Z/
Clearfield-Northern Centre-Southern Centre-Blair-Huntingdon-
Mifflin-Juniata-Bedford-Fulton-Franklin-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of DuBois, Clearfield, Philipsburg, 
State College, Altoona, Huntingdon, Mount Union, Lewistown, 
Mifflintown, Bedford, McConnellsburg, Chambersburg, Lock Haven, 
Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, 
Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster
407 AM EST Mon Jan 21 2019

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Very cold wind chills expected. Expect wind chills as 
  low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 1 PM EST this afternoon.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$
Lambert/Steinbugl

For more information from the National Weather Service visit
http://weather.gov/ctp
286 
WWUS41 KCTP 211802
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
102 PM EST Mon Jan 21 2019



PAZ024-033-211915-
/O.EXP.KCTP.WC.W.0001.000000T0000Z-190121T1800Z/
Cambria-Somerset-
Including the cities of Johnstown and Somerset
102 PM EST Mon Jan 21 2019

...WIND CHILL WARNING HAS EXPIRED...



$$

PAZ017>019-025>028-034>036-045-046-049>053-056>059-063>066-211915-
/O.EXP.KCTP.WC.Y.0001.000000T0000Z-190121T1800Z/
Clearfield-Northern Centre-Southern Centre-Blair-Huntingdon-
Mifflin-Juniata-Bedford-Fulton-Franklin-Southern Clinton-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of DuBois, Clearfield, Philipsburg, 
State College, Altoona, Huntingdon, Mount Union, Lewistown, 
Mifflintown, Bedford, McConnellsburg, Chambersburg, Lock Haven, 
Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, 
Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, 
Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster
102 PM EST Mon Jan 21 2019

...WIND CHILL ADVISORY HAS EXPIRED...



$$

PAZ004>006-010>012-037-041-042-220000-
/O.CON.KCTP.WC.W.0001.000000T0000Z-190122T0000Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run, 
and Laporte
102 PM EST Mon Jan 21 2019

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerously cold wind chills expected. Expect wind 
  chills as low as 20 below zero.

* WHERE...Portions of central Pennsylvania.

* WHEN...Until 7 PM EST this evening.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid going outside during the coldest parts of the day. Dress in
layers and cover exposed skin. Wear a hat and gloves.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
481 
WWUS41 KCTP 212352
WSWCTP

URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
652 PM EST Mon Jan 21 2019

PAZ042-220800-
/O.CAN.KCTP.WC.W.0001.000000T0000Z-190122T0000Z/
/O.NEW.KCTP.WC.Y.0002.190122T0000Z-190122T1200Z/
Sullivan-
Including the city of Laporte
652 PM EST Mon Jan 21 2019

...WIND CHILL ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills expected. Expect wind chills around
  15 below zero.

* WHERE...Sullivan County.

* WHEN...Until 7 AM EST Tuesday.

* ADDITIONAL DETAILS...The cold wind chills could cause 
  frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside. Dress in layers and cover exposed skin. Wear
a hat and gloves.

&&

$$

PAZ004>006-010>012-037-041-220100-
/O.CAN.KCTP.WC.W.0001.000000T0000Z-190122T0000Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, and Trout Run
652 PM EST Mon Jan 21 2019

...WIND CHILL WARNING IS CANCELLED...

The threat of dangerous wind chills has diminished this evening as
winds subside. However, it will remain cold overnight with lows at
dawn between zero and 10 below. 

$$

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 wind chill 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 wind chill warning went out at Jan 20, 2:55 AM EST, 1 hour 11 minutes earlier.

Area forecast discussion, Jan 20, 2:55 AM EST, 1 hour 11 minutes before
Area Forecast Discussion
National Weather Service State College PA
255 AM EST Sun Jan 20 2019

.SYNOPSIS...
A polar plunge of arctic air will follow the winter storm with
sharply falling temperatures today potentially leading to rapid
freeze-ups and additional travel disruptions. Frigid temperatures
and blustery winds will produce bitter cold to dangerous wind
chills tonight into Monday. Temperatures will trend milder on
Tuesday with the next storm system likely bringing mixed
precipitation on Wednesday.

&&

.NEAR TERM /THROUGH TONIGHT/...
*Winter storm impacts shifting from snow/icy mix to bitter cold
*Dangerous wind chills tonight into early Monday morning

Mixed precip transition zone has shifted north of I-80 allowing
for changeover from snow to sleet/freezing rain/rain at
KDUJ/KFIG/KUNV/KIPT. Expect stripe of icy mix or rain along the
I-99/US-220 corridor through 12Z with plain rain southeast of
I-81. We will likely drop the winter wx advisory for the lower
Susquehanna Valley with the next update.

Radar trends show precip filling in the dry slot lifting
northeast across nrn WV into SW PA. Band of moderate snow should
expand over the northern tier. Hires models show the back edge
of precip shield transitioning back to snow as it pivots into
central PA through late morning. The heaviest snow (additional
2-4") through 12Z will be confined to the northern tier
counties/US-6 corridor. An additional coating to 1 inch is
possible in the 12-18Z timeframe across the northwest 1/2 of the
CWA especially in the Laurel Highlands and Endless Mtns.

As snow and mixed precip comes to an end in most places by
midday, focus will shift to impacts associated with an arctic
blast of brutally cold air this afternoon through tonight. Gusty
northwest winds will direct much colder air into the region as
the storm pulls away. High temps today will occur in the morning
with temperatures expected to fall through the afternoon,
reaching the single digits and teens by evening.

Gusty winds combined with the frigid temperatures will result
in bitter cold to dangerous wind chills in the 10 to 25F below
zero range. Windy conditions may also contribute to blowing and
drifting snow over the norther tier. Plan to issue wind chill
advisories/warnings with the next update.

The plummeting temperatures could result in a rapid freeze up
of slush/standing water on roads and lead to additional travel
problems. The brutal cold will hinder storm clean-up/snow
removal and recovery efforts.

Despite the surge of arctic air charging across the Grt Lks,
low PWAT air and low inversion heights will result in little
lake effect snow across the snowbelt and favored upslope areas.

&&

.SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/...
Very cold temperatures to start next week with highs in the
single digits to low teens with subzero wind chills.
Temperatures will trend milder through midweek. Scattered snow
showers and flurries will linger on Monday. Clearing skies and
fresh snow cover under strong arctic high pressure may produce
the coldest minimum temps Tuesday morning. Fair wx expected
Tuesday with some recovery in temperatures.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
Another shot of wintry weather appears likely toward midweek.
The pattern looks to remain fairly active with the potential for
more storms followed by cold shots through next weekend.

&&

.AVIATION /07Z SUNDAY THROUGH THURSDAY/...
Steady precipitation shield starting to show some erosion in the
west, but still overall a fairly large area of precipitation
remains across central Pennsylvania.

Mainly snow continues north of I-80 corridor at 06z, but PL/FZRA
widespread south of this, with just plain rain across the far
south and southeast. Mixed precipitation making a strong push
northward, and expecting KIPT and KUNV to likely transition to
all PL, if not FZRA.

Precipitation will transition back to snow on the very backside
of the system as it exits to the east during the morning.

Behind the system, snow showers will linger across the northern
and western mountains during the day. Strong winds will cause
some blowing snow across the north, where no ice fell, and will
likely affect KBFD. Overall, conditions improving to MVFR across
the mountains, with eventual VFR elsewhere.

Outlook...

Sun Nite/Mon...MVFR cigs and snow showers NW 1/2. VFR elsewhere.

Tue...Mainly VFR.

Wed...Restrictions likely with rain or showers.

Thu...MVFR/VFR with scattered snow showers.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
Winter Storm Warning until 1 PM EST this afternoon for
PAZ004>006-010>012-017>019-024>028-033>035-037-041-042-045-046-
049>053.
Winter Weather Advisory until 1 PM EST this afternoon for
PAZ036-056>059-063>066.

&&

SYNOPSIS...Steinbugl
NEAR TERM...Steinbugl
SHORT TERM...Steinbugl
LONG TERM...Gartner/Steinbugl
AVIATION...Jung/Martin
Hazardous weather outlook, Jan 19, 9:37 PM EST, 6 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
937 PM EST Sat Jan 19 2019

PAZ004>006-010>012-017>019-024>028-033>035-037-041-042-045-046-
049>053-210245-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Mifflin-
Juniata-Somerset-Bedford-Fulton-Tioga-Northern Lycoming-Sullivan-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-
937 PM EST Sat Jan 19 2019

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

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...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 Warning.

.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 Storm Warning.

Bitter cold with dangerous wind chills are expected Sunday night
into Monday with frostbite and hypothermia possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ036-056>059-063>066-210245-
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-
Lancaster-
937 PM EST Sat Jan 19 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST SUNDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...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.

Bitter cold with dangerous wind chills are expected Sunday night
into Monday with frostbite and hypothermia possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jan 20, 1:39 AM EST, 2 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
139 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0135 AM     SNOW             HUGHESVILLE             41.24N  76.73W
01/20/2019  E6.0 INCH        LYCOMING           PA   SOCIAL MEDIA

&&

EVENT NUMBER CTP1900174

JRB
Local storm report, Jan 20, 1:40 AM EST, 2 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
140 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0139 AM     SNOW             WATERVILLE              41.22N  76.38W
01/20/2019  E6.0 INCH        COLUMBIA           PA   SOCIAL MEDIA

&&

EVENT NUMBER CTP1900175

JRB
Local storm report, Jan 20, 1:41 AM EST, 2 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
141 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     SNOW             LEMOYNE                 40.24N  76.90W
01/19/2019  E2.0 INCH        CUMBERLAND         PA   SOCIAL MEDIA

&&

EVENT NUMBER CTP1900176

JRB
Local storm report, Jan 20, 1:45 AM EST, 2 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
145 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     SNOW             TAMAQUA                 40.81N  75.93W
01/19/2019  E2.5 INCH        SCHUYLKILL         PA   SOCIAL MEDIA

&&

EVENT NUMBER CTP1900177

JRB
Local storm report, Jan 20, 1:47 AM EST, 2 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
147 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 PM     SNOW             WHITNEYVILLE            41.77N  77.20W
01/19/2019  E8.0 INCH        TIOGA              PA   SOCIAL MEDIA

&&

EVENT NUMBER CTP1900178

JRB
Local storm report, Jan 20, 1:49 AM EST, 2 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
149 AM EST SUN JAN 20 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 AM     SNOW             HARRISBURG INTERNATIONA 40.19N  76.76W
01/20/2019  M2.8 INCH        DAUPHIN            PA   CO-OP OBSERVER

&&

EVENT NUMBER CTP1900179

JRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 4:06 AM ESTWind Chill AdvisoryCTPAdams, Bedford, Blair, Cambria, Centre, Clearfield and 20 more33 hr

Nearby

Wind Chill Warnings in Pennsylvania, 2019Every wind chill warning in 2019

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.