Alert archive / Pennsylvania / Winter Storm Watches in 2021

Winter Storm Watch 4, NWS Pittsburgh, PA

February 13, 202114 counties in Pennsylvania; 11 counties in Ohio; 7 counties in West Virginia

NWS Pittsburgh, PA issued this winter storm watch at Feb 13, 2021, 1:55 PM EST for 14 counties in Pennsylvania; 11 counties in Ohio; 7 counties in West Virginia. It took effect at Feb 15, 2021, 1:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 13, 2021, 1:55 PM EST (18:55 UTC)
In effect from
Feb 15, 2021, 1:00 AM EST
Expired
Feb 14, 2021, 1:49 PM EST
In force
Issued by
NWS Pittsburgh, PA
All 32 counties

Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Tuscarawas County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 26 km from the middle of the area, began a volume at 18:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.9 hours before the alert went out and 31 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, Pittsburgh, PA 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, Pittsburgh, PA at 12:00Z on 2021-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 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
771 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

750 
WWUS41 KPBZ 131855
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
155 PM EST Sat Feb 13 2021

WVZ514-140000-
/O.CON.KPBZ.WW.Y.0014.000000T0000Z-210214T0000Z/
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
155 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Freezing drizzle. A light glaze of ice accumulation is 
  expected.

* WHERE...Eastern Tucker County.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

&&

$$

OHZ039>041-048>050-057>059-PAZ007>009-013>016-020>022-029-
WVZ001>003-140300-
/O.NEW.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-
Muskingum-Guernsey-Belmont-Mercer-Venango-Forest-Lawrence-Butler-
Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Washington-
Hancock-Brooke-Ohio-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Steubenville, Zanesville, Cambridge, Martins Ferry, 
St. Clairsville, Sharon, Hermitage, Grove City, Oil City, 
Franklin, Tionesta, New Castle, Ellwood City, Butler, Clarion, 
Punxsutawney, Brookville, Aliquippa, Beaver Falls, Ambridge, 
Monaca, Pittsburgh Metro Area, Kittanning, Ford City, Washington,
Canonsburg, Weirton, Follansbee, Wellsburg, and Wheeling
155 PM EST Sat Feb 13 2021

...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY AFTERNOON...

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

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late Sunday night through Tuesday afternoon.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
5 follow-up statements
493 
WWUS41 KPBZ 132302
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
602 PM EST Sat Feb 13 2021

OHZ050-059-PAZ009-014>016-020>022-029-WVZ001>003-140715-
/O.EXB.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Jefferson OH-Belmont-Forest-Butler-Clarion-Jefferson PA-Beaver-
Allegheny-Armstrong-Washington-Hancock-Brooke-Ohio-
Including the cities of Steubenville, Martins Ferry, 
St. Clairsville, Tionesta, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Washington, 
Canonsburg, Weirton, Follansbee, Wellsburg, and Wheeling
602 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM EST SUNDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT
THROUGH TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle and
  freezing fog possible. A light glaze of ice accumulation is 
  expected. For the Winter Storm Watch, heavy snow possible. Total
  snow accumulations of 6 to 9 inches possible.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...For the Winter Weather Advisory, until 4 AM EST Sunday. 
  For the Winter Storm Watch, from late Sunday night through 
  Tuesday afternoon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

OHZ069-PAZ023-031-073>076-WVZ004-012-021-509>513-140715-
/O.EXB.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
Monroe-Indiana-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Marshall-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-
Including the cities of Woodsfield, Indiana, Waynesburg, 
Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, 
Monessen, Ligonier, Donegal, Uniontown, Champion, Ohiopyle, 
Moundsville, New Martinsville, Fairmont, Morgantown, 
Coopers Rock, Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, 
Hazelton, Parsons, Hendricks, and Saint George
602 PM EST Sat Feb 13 2021

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

* WHAT...Freezing drizzle and freezing fog possible. A light 
  glaze of ice accumulation is expected.

* WHERE...Eastern Tucker County.

* WHEN...Until 4 AM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

WVZ514-140715-
/O.EXT.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
Eastern Tucker-
Including the cities of Davis, Thomas, and Canaan Valley
602 PM EST Sat Feb 13 2021

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

* WHAT...Freezing drizzle. A light glaze of ice accumulation is 
  expected.

* WHERE...Eastern Tucker County.

* WHEN...Until 4 AM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

&&

$$

OHZ039>041-048-049-057-058-PAZ007-008-013-140715-
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Muskingum-
Guernsey-Mercer-Venango-Lawrence-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Zanesville, Cambridge, Sharon, Hermitage, Grove City, Oil City, 
Franklin, New Castle, and Ellwood City
602 PM EST Sat Feb 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT
THROUGH TUESDAY AFTERNOON...

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

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late Sunday night through Tuesday afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
589 
WWUS41 KPBZ 140101
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
801 PM EST Sat Feb 13 2021

OHZ069-PAZ023-031-073>076-WVZ004-012-021-509-510-140915-
/O.EXA.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
/O.CON.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
Monroe-Indiana-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Marshall-Wetzel-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Woodsfield, Indiana, Waynesburg, 
Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, 
Monessen, Ligonier, Donegal, Uniontown, Champion, Ohiopyle, 
Moundsville, New Martinsville, Fairmont, Morgantown, 
and Coopers Rock
801 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle and
  freezing fog. A light glaze of ice accumulation is expected. For
  the Winter Storm Watch, heavy mixed precipitation possible. 
  Total snow accumulations of 4 to 7 inches and ice accumulations 
  of around one tenth of an inch possible.

* WHERE...Portions of southwest and western Pennsylvania, east 
  central Ohio and northern and the northern panhandle of West 
  Virginia.

* WHEN...From late Sunday night through Tuesday afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

OHZ050-059-PAZ009-014>016-020>022-029-WVZ001>003-140915-
/O.CON.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Jefferson OH-Belmont-Forest-Butler-Clarion-Jefferson PA-Beaver-
Allegheny-Armstrong-Washington-Hancock-Brooke-Ohio-
Including the cities of Steubenville, Martins Ferry, 
St. Clairsville, Tionesta, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Washington, 
Canonsburg, Weirton, Follansbee, Wellsburg, and Wheeling
801 PM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
SUNDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT
THROUGH TUESDAY AFTERNOON...

* WHAT...For the Winter Weather Advisory, freezing drizzle and 
  freezing fog possible. A light glaze of ice accumulation is 
  expected. For the Winter Storm Watch, heavy snow possible. 
  Total snow accumulations of 6 to 9 inches possible.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...For the Winter Weather Advisory, until 4 AM EST Sunday. 
  For the Winter Storm Watch, from late Sunday night through 
  Tuesday afternoon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

WVZ511>514-140900-
/O.CON.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Kingwood, Bruceton Mills, Terra Alta, 
Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, 
Thomas, and Canaan Valley
801 PM EST Sat Feb 13 2021

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

* WHAT...Freezing drizzle and freezing fog possible. A light 
  glaze of ice accumulation is expected.

* WHERE...Eastern Tucker County.

* WHEN...Until 4 AM EST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

&&

$$

OHZ068-140915-
/O.EXA.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Noble-
Including the city of Caldwell
801 PM EST Sat Feb 13 2021

...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 5 to 8 
  inches possible.

* WHERE...Noble County.

* WHEN...From late Sunday night through Tuesday afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

OHZ039>041-048-049-057-058-PAZ007-008-013-140915-
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Muskingum-
Guernsey-Mercer-Venango-Lawrence-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Zanesville, Cambridge, Sharon, Hermitage, Grove City, Oil City, 
Franklin, New Castle, and Ellwood City
801 PM EST Sat Feb 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT
THROUGH TUESDAY AFTERNOON...

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

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late Sunday night through Tuesday afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
594 
WWUS41 KPBZ 140813
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
313 AM EST Sun Feb 14 2021

OHZ050-059-069-PAZ009-014-015-020>022-029-031-WVZ001>004-012-021-
509-141615-
/O.CAN.KPBZ.WW.Y.0014.000000T0000Z-210214T0900Z/
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Jefferson OH-Belmont-Monroe-Forest-Butler-Clarion-Beaver-
Allegheny-Armstrong-Washington-Greene-Hancock-Brooke-Ohio-
Marshall-Wetzel-Marion-Monongalia-
Including the cities of Steubenville, Martins Ferry, 
St. Clairsville, Woodsfield, Tionesta, Butler, Clarion, 
Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area,
Kittanning, Ford City, Washington, Canonsburg, Waynesburg, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, and Morgantown
313 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...For the Winter Storm Watch, heavy mixed precipitation
  possible. Total snow accumulation of 4 to 7 inches and ice 
  accumulation of one to two tenths of an inch is possible.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late tonight through Tuesday morning.

* IMPACTS...Expect hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

PAZ016-023-073>076-WVZ510-141615-
/O.EXT.KPBZ.WW.Y.0014.000000T0000Z-210214T1300Z/
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Jefferson PA-Indiana-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Punxsutawney, Brookville, Indiana, 
Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, 
Monessen, Ligonier, Donegal, Uniontown, Champion, Ohiopyle, 
and Coopers Rock
313 AM EST Sun Feb 14 2021

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

* WHAT...For the Winter Weather Advisory, freezing drizzle will
  continue this morning. A light glaze of ice accumulation is
  expected. For the Winter Storm Watch, heavy mixed precipitation
  possible. Total snow accumulation of 3 to 6 inches and ice
  accumulation of a tenth to quarter inch is possible.

* WHERE...Portions of southwest and western Pennsylvania, east 
  central Ohio and northern and the northern panhandle of West 
  Virginia.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Monitor the latest forecasts for updates on this situation.

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

WVZ511>514-141300-
/O.EXT.KPBZ.WW.Y.0014.000000T0000Z-210214T1300Z/
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Kingwood, Bruceton Mills, Terra Alta, 
Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, 
Thomas, and Canaan Valley
313 AM EST Sun Feb 14 2021

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

* WHAT...Freezing drizzle will continue this morning. A light 
  glaze of ice accumulation is expected.

* WHERE...Eastern Tucker County.

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

* IMPACTS...Hazardous driving conditions are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

&&

$$

OHZ039>041-048-049-057-058-068-PAZ007-008-013-141615-
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Muskingum-
Guernsey-Noble-Mercer-Venango-Lawrence-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Zanesville, Cambridge, Caldwell, Sharon, Hermitage, Grove City, 
Oil City, Franklin, New Castle, and Ellwood City
313 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 8
  inches possible.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late tonight through Tuesday morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$
131 
WWUS41 KPBZ 141248
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
748 AM EST Sun Feb 14 2021

PAZ016-023-073>076-WVZ510-142100-
/O.EXP.KPBZ.WW.Y.0014.000000T0000Z-210214T1300Z/
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Jefferson PA-Indiana-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Punxsutawney, Brookville, Indiana, 
Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, 
Monessen, Ligonier, Donegal, Uniontown, Champion, Ohiopyle, 
and Coopers Rock
748 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING...

* WHAT...Heavy mixed precipitation possible. Total snow 
  accumulations of 4 to 6 inches and ice accumulations of one 
  tenth to two tenths of an inch possible.

* WHERE...Portions of southwest and western Pennsylvania, east 
  central Ohio and northern and the northern panhandle of West 
  Virginia.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

WVZ511>514-141400-
/O.EXP.KPBZ.WW.Y.0014.000000T0000Z-210214T1300Z/
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Kingwood, Bruceton Mills, Terra Alta, 
Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, 
Thomas, and Canaan Valley
748 AM EST Sun Feb 14 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM EST THIS MORNING...

All indications suggest freezing drizzle has ended across the
region, thus the Winter Weather Advisory will be allowed to
expire. Icy spots on untreated roadways and bridges may linger 
through mid-morning, so continue to use caution while driving.

$$

OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>015-020>022-029-
031-WVZ001>004-012-021-509-142100-
/O.CON.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-
Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest-
Lawrence-Butler-Clarion-Beaver-Allegheny-Armstrong-Washington-
Greene-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Steubenville, Zanesville, Cambridge, Martins Ferry, 
St. Clairsville, Caldwell, Woodsfield, Sharon, Hermitage, 
Grove City, Oil City, Franklin, Tionesta, New Castle, 
Ellwood City, Butler, Clarion, Aliquippa, Beaver Falls, Ambridge,
Monaca, Pittsburgh Metro Area, Kittanning, Ford City, Washington,
Canonsburg, Waynesburg, Weirton, Follansbee, Wellsburg, Wheeling,
Moundsville, New Martinsville, Fairmont, and Morgantown
748 AM EST Sun Feb 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 8 
  inches possible.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern and the northern 
  panhandle of West Virginia.

* WHEN...From late tonight through Tuesday morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
996 
WWUS41 KPBZ 141849
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
149 PM EST Sun Feb 14 2021

OHZ039>041-048>050-057-058-PAZ007>009-013>016-020-WVZ001-150300-
/O.UPG.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
/O.NEW.KPBZ.WS.W.0004.210215T0600Z-210216T1800Z/
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-
Muskingum-Guernsey-Mercer-Venango-Forest-Lawrence-Butler-Clarion-
Jefferson PA-Beaver-Hancock-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, 
Steubenville, Zanesville, Cambridge, Sharon, Hermitage, 
Grove City, Oil City, Franklin, Tionesta, New Castle, 
Ellwood City, Butler, Clarion, Punxsutawney, Brookville, 
Aliquippa, Beaver Falls, Ambridge, Monaca, and Weirton
149 PM EST Sun Feb 14 2021

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

* WHAT...Heavy mixed precipitation expected. Total snow
  accumulations of 6 to 9 inches and ice accumulations of a glaze
  to around one tenth of an inch.

* WHERE...Portions of northwest, southwest and western 
  Pennsylvania, east central Ohio and northern West Virginia.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

OHZ059-068-069-PAZ021>023-029-031-073-074-WVZ002>004-012-150300-
/O.UPG.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
/O.NEW.KPBZ.WS.W.0004.210215T0600Z-210216T1800Z/
Belmont-Noble-Monroe-Allegheny-Armstrong-Indiana-Washington-
Greene-Westmoreland-Higher Elevations of Westmoreland-Brooke-Ohio-
Marshall-Wetzel-
Including the cities of Martins Ferry, St. Clairsville, Caldwell,
Woodsfield, Pittsburgh Metro Area, Kittanning, Ford City, 
Indiana, Washington, Canonsburg, Waynesburg, Murrysville, 
Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, 
Ligonier, Donegal, Follansbee, Wellsburg, Wheeling, Moundsville, 
and New Martinsville
149 PM EST Sun Feb 14 2021

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

* WHAT...Heavy mixed precipitation expected. Total snow 
  accumulations of 3 to 6 inches and ice accumulations of one 
  tenth to two tenths of an inch.

* WHERE...Portions of southwest and western Pennsylvania, east 
  central Ohio and northern and the northern panhandle of West 
  Virginia.

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

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

PAZ075-076-WVZ021-509-510-150300-
/O.UPG.KPBZ.WS.A.0004.210215T0600Z-210216T1800Z/
/O.NEW.KPBZ.WW.Y.0015.210215T0600Z-210216T1800Z/
Fayette-Higher Elevations of Fayette-Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown, Champion, Ohiopyle, Fairmont, 
Morgantown, and Coopers Rock
149 PM EST Sun Feb 14 2021

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

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 3 inches and ice accumulations of up to two tenths of an 
  inch.

* WHERE...In Pennsylvania, Fayette and Higher Elevations of 
  Fayette Counties. In West Virginia, Marion, Monongalia and 
  Ridges of Eastern Monongalia and Northwestern Preston Counties.

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

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

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.

&&

$$

WVZ511>514-150300-
/O.NEW.KPBZ.WW.Y.0015.210215T0600Z-210216T1800Z/
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Kingwood, Bruceton Mills, Terra Alta, 
Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, 
Thomas, and Canaan Valley
149 PM EST Sun Feb 14 2021

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

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

* WHERE...Preston, Eastern Preston, Western Tucker and Eastern 
  Tucker Counties.

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

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Please report snow or ice by calling 412-262-1988, posting to the
NWS Pittsburgh Facebook page, or using Twitter @NWSPittsburgh

&&

$$

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 Pittsburgh, PA wrote its last area forecast discussion before this winter storm watch went out at Feb 13, 8:19 AM EST, 5 hours 36 minutes earlier.

Area forecast discussion, Feb 13, 8:19 AM EST, 5 hours 36 minutes before
Area Forecast Discussion
National Weather Service Pittsburgh PA
819 AM EST Sat Feb 13 2021

.SYNOPSIS...
Periodic precipitation chance and seasonably cold temperature will
continue through next week.

&&

.NEAR TERM /THROUGH SUNDAY/...
815am update...a combination of ground reports and weak radar returns
suggest accumulating freezing rain/drizzle has developed over eastern
Tucker County. Given potential for this precipitation type to linger
through the day, have issued a Winter Weather Advisory. Generally a
glaze of ice accumulation is expected due to meager moisture and low
QPF model output. There remains a potential need to further expand
the advisory north and east if freezing rain/drizzle becomes the
predominant precipitation type moving forward as the shortwave
crosses the region.

Previous Discussion...

Upper flow is backing to the southwest in response to
a digging trough over the central CONUS. Light precipitation chance
returns today with the approach and passage of a weak shortwave
within this flow. Changing frontal orientation and warm advection
indicate mixed precip for the area with model soundings showing
sparse mid level moisture with the warmth capping a saturating
boundary layer.

As the ascent signal and mid-moisture are very limited, only chance
pops were maintained for some light snow with efficiency compromised
by the aforementioned mid level warmth. Light freezing rain or
drizzle is also possible though given the moist sfc layer, but
confidence in problematic ice accumulation is low at moment, so no
advisory will be issued for now.

Shortwave ridging is expected to keep Sunday mostly dry in the wake
of todays disturbance.

&&

.SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/...
The sw flow over the Upper OH is forecast to continue through mid
week with a series of crossing shortwaves within flow defining precip
chances. The first of significance is indicated for late Sunday
night and early Monday, while another and stronger impulse is timed
for Monday night with an early Tuesday exit.

Models are not consistent in depictions of omega/ascent magnitude
with the first of these systems on Monday with GFS being much
stronger, although deterministic trends of timing and more of an open
wave situation are in line. The second on Monday night is stronger in
the ascent field given indications of at least a brief coupled
jet/enhanced frontogenesis scenario; however, all models rapidly
encroach a mid level dry slot early on Tuesday which will shut down
problematic precipitation efficiency.

In addition, the shifting baroclinic zone in the southwest flow
pattern will degrade snowfall efficiency for part of the area, but
add the element of mixed precip including freezing rain to the
problem. At moment, the mid level frontogenetic zone is indicated
just northwest of Pittsburgh and that is where the heavier snow
forecast was drawn for these two shortwave passages. With a break
indicated Monday afternoon, the question of a collaborated headline
at this point is not clear. Nonetheless, hazardous wintry weather
should be anticipated, especially on Monday night, and headlines are
likely.

&&

.LONG TERM /WEDNESDAY THROUGH FRIDAY/...
The southwest flow pattern is forecast to continue with yet another
potent embedded shortwave indicated for late week.

&&

.AVIATION /13Z SATURDAY THROUGH WEDNESDAY/...
VFR prevails early this morning, but MVFR cigs will shift northward
through the morning hours in advance of the next shortwave. Thus have
put some TEMPO groups in for most of the terminals to highlight that
transition period. The shortwave will bring light precipitation to
the region in the form of snow and/or freezing rain mainly after
14z. Further deterioration to IFR is expected by this afternoon,
with restrictions continuing through tonight.

.Outlook...
Widespread restrictions are expected again Monday and Tuesday with
another winter system.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
PA...None.
OH...None.
WV...Winter Weather Advisory until 7 PM EST this evening for WVZ514.

&&
Hazardous weather outlook, Feb 13, 8:14 AM EST, 5 hours 41 minutes before
Hazardous Weather Outlook
National Weather Service Pittsburgh PA
814 AM EST Sat Feb 13 2021

OHZ039>041-048-PAZ007>009-013>016-020-022-023-WVZ001-141315-
Tuscarawas-Carroll-Columbiana-Coshocton-Mercer-Venango-Forest-
Lawrence-Butler-Clarion-Jefferson PA-Beaver-Armstrong-Indiana-
Hancock-
814 AM EST Sat Feb 13 2021

This Hazardous Weather Outlook is for east central Ohio, northwest
Pennsylvania, southwest Pennsylvania, western Pennsylvania and
northern West Virginia.

.DAY ONE...Today and tonight.

Weak low pressure is expected to generate some light snow or areas
of freezing drizzle today and early tonight. Should widespread
freezing drizzle develop, an advisory may be needed.

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

Accumulating snow is expected in two waves. The first on Sunday
night and early Monday. The second on Monday night and early
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

OHZ049-050-057>059-068-069-PAZ021-029-031-073>076-WVZ002>004-012-021-
509>513-141315-
Harrison-Jefferson OH-Muskingum-Guernsey-Belmont-Noble-Monroe-
Allegheny-Washington-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Eastern Preston-Western Tucker-
814 AM EST Sat Feb 13 2021

This Hazardous Weather Outlook is for east central Ohio, southwest
Pennsylvania, western Pennsylvania, northern West Virginia and the
northern panhandle of West Virginia.

.DAY ONE...Today and tonight.

Weak low pressure is expected to generate some light snow or areas
of freezing drizzle today and early tonight. Should widespread
freezing drizzle develop, an advisory may be needed.

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

Accumulating snow and mixed precipitation including freezing rain is
expected in two waves. The first on Sunday night and early Monday.
The second on Monday night and early Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

WVZ514-141315-
Eastern Tucker-
814 AM EST Sat Feb 13 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

This Hazardous Weather Outlook is for northern West Virginia.

.DAY ONE...Today and tonight.

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

   Winter Weather Advisory.

Weak low pressure is expected to generate some light snow or areas
of
freezing drizzle today and early tonight. Should widespread freezing
drizzle develop, an advisory may be needed.

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

Accumulating snow and mixed precipitation including freezing rain is
expected in two waves. The first on Sunday night and early Monday.
The second on Monday night and early Tuesday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

In the hours before

Special weather statement, Feb 13, 1:15 PM EST, 40 minutes before
Special Weather Statement
National Weather Service Pittsburgh PA
115 PM EST Sat Feb 13 2021

OHZ049-050-057>059-068-069-PAZ021-029-031-073>076-WVZ001>004-012-
021-509>513-140000-
Harrison-Jefferson OH-Muskingum-Guernsey-Belmont-Noble-Monroe-
Allegheny-Washington-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-
Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-
Including the cities of Cadiz, Steubenville, Zanesville,
Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield,
Pittsburgh Metro Area, Washington, Canonsburg, Waynesburg,
Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe,
Monessen, Ligonier, Donegal, Uniontown, Champion, Ohiopyle,
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville,
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood,
Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, Parsons,
Hendricks, and Saint George
115 PM EST Sat Feb 13 2021

...Pockets Of Freezing Drizzle Possible Through This Evening...

Some isolated spots of freezing drizzle and freezing fog have
been reported across much of the forecast area mainly south of
I-80. A light glaze may accumulate on road surfaces. Use caution
this afternoon and into the evening if out traveling. Assume that
any roadway or bridge that looks wet is indeed icy.

SHALLENBERGER

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 8:11 AM ESTWinter Weather AdvisoryPBZAllegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 5 more24 hr

Nearby

Winter Storm Watches in Pennsylvania, 2021Winter Storm Watches in Ohio, 2021Winter Storm Watches in West Virginia, 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.