Alert archive / West Virginia / Winter Storm Warnings in 2021

Winter Storm Warning 2, NWS Pittsburgh, PA

January 31, 2021Preston County, Tucker County, West Virginia; Fayette County, Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this winter storm warning at Jan 31, 2021, 4:42 PM EST for Preston County, Tucker County, West Virginia; Fayette County, Westmoreland County, Pennsylvania. It was in force for 41 hr. 60 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
Jan 31, 2021, 4:42 PM EST (21:42 UTC)
Expired
Feb 2, 2021, 10:00 AM EST
In force
41 hr
Issued by
NWS Pittsburgh, PA

Counties Fayette County, PA, Westmoreland County, PA, Preston County, WV, Tucker County, WV

The radar

The Pittsburgh radar (KPBZ), 107 km from the middle of the area, began a volume at 21:46 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 31, 5:12 PM ESTSNOW 7Pisgah, WV
Jan 31, 5:46 PM ESTSNOW 12.5Aurora, WV
Jan 31, 6:00 PM ESTSNOW 7.12 W Kingwood, WV
Jan 31, 6:15 PM ESTSNOW 4.1Parsons, WV
Jan 31, 6:43 PM ESTSNOW 8Davis, WV
Jan 31, 7:00 PM ESTSNOW 11.2Davis, WV
Jan 31, 7:01 PM ESTSNOW 3Belle Vernon, PA
Jan 31, 7:04 PM ESTSNOW 3.5Farmington, PA
Jan 31, 8:00 PM ESTSNOW 1.41 W New Kensington, PA
Jan 31, 8:11 PM ESTSNOW 1.4New Kensington, PA
Jan 31, 8:30 PM ESTSNOW 4.6Farmington, PA
Jan 31, 9:35 PM ESTSNOW 21 W Herminie, PA
Jan 31, 11:45 PM ESTSNOW 4.44 Nw Ohiopyle, PA
Feb 1, 6:23 AM ESTSNOW 3.21 W Herminie, PA
Feb 1, 6:56 AM ESTSNOW 13 S Darlington, PA
Feb 1, 7:00 AM ESTSNOW 1.41 Se Point Marion, PA24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 1.53 E North Washington, PA24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 21 Sw Leechburg, PA24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 2.61 E Grapeville, PA
Feb 1, 7:00 AM ESTSNOW 33 S Bruceton Mills, WV24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 3Lemont Furnace, PA
Feb 1, 7:00 AM ESTSNOW 3.11 W New Kensington, PA24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 3.11 W New Kensington, PA
Feb 1, 7:00 AM ESTSNOW 3.23 Se Parsons, WV24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 4.51 Ene Farmington, PA24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 51 E Kingwood, WV24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 87 N Thomas, WV24-HOUR SNOWFALL.
Feb 1, 7:00 AM ESTSNOW 9.5Davis, WV24-HOUR SNOWFALL.
Feb 1, 7:35 AM ESTSNOW 2.31 Wnw Greensburg, PA24-HOUR SNOWFALL.
Feb 1, 8:00 AM ESTSNOW 4.2Rillton, PA
Feb 1, 8:00 AM ESTSNOW 15.65 Nne Terra Alta, WV24-HOUR SNOWFALL.
Feb 1, 9:00 AM ESTSNOW 3.5Level Green, PA
Feb 1, 9:00 AM ESTSNOW 5Perryopolis, PA
Feb 1, 9:00 AM ESTSNOW 5.83 S Canaan Hgts, WV24-HOUR SNOWFALL.
Feb 1, 9:00 AM ESTSNOW 9Valley Point, WV
Feb 1, 9:30 AM ESTSNOW 3.8Irwin, PA
Feb 1, 10:00 AM ESTSNOW 2.9Nne Adamsburg, PA24-HOUR SNOWFALL.
Feb 1, 10:00 AM ESTSNOW 3.6Adamsburg, PA
Feb 1, 10:00 AM ESTSNOW 5.84 Nw Ohiopyle, PA
Feb 1, 10:04 AM ESTSNOW 2Markle, PA
Feb 1, 10:30 AM ESTSNOW 14Mount Olivet, WVSTORM TOTAL THUS FAR; ELEVATION APPROX 1500FT
Feb 1, 11:00 AM ESTSNOW 3.6Irwin, PA
Feb 1, 11:30 AM ESTSNOW 32 E Gladesville, WV
Feb 1, 12:00 PM ESTSNOW 9.7Bruceton Mills, WV
Feb 1, 12:15 PM ESTSNOW 2.2Greensburg, PA
Feb 1, 12:25 PM ESTSNOW 2.3Penn, PA
Feb 1, 12:31 PM ESTSNOW 2.5Greensburg, PA
Feb 1, 1:00 PM ESTSNOW 2Youngwood, PA
Feb 1, 2:25 PM ESTSNOW 13Bruceton Mills, WVSTORM TOTAL
Feb 1, 3:05 PM ESTSNOW 14.5Aurora, WV
Feb 1, 6:00 PM ESTSNOW 61 Wsw Monessen, PA
Feb 1, 9:30 PM ESTSNOW 8.5Farmington, PA
Feb 1, 10:00 PM ESTSNOW 7.24 Nw Ohiopyle, PA
Feb 1, 10:11 PM ESTSNOW 7.2Ohiopyle, PASTORM TOTAL SINCE SUNDAY.
Feb 1, 10:12 PM ESTSNOW 8.5Farmington, PASTORM TOTAL SINCE SATURDAY NIGHT.
Feb 2, 6:20 AM ESTSNOW 41 W Herminie, PA
Feb 2, 7:00 AM ESTSNOW 1.81 W New Kensington, PA24-HOUR SNOWFALL.
Feb 2, 7:00 AM ESTSNOW 27 N Thomas, WV24-HOUR SNOWFALL.
Feb 2, 7:00 AM ESTSNOW 2.23 Se Parsons, WV24-HOUR SNOWFALL.
Feb 2, 7:00 AM ESTSNOW 2.53 E North Washington, PA24-HOUR SNOWFALL.

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

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.7 hours before the alert went out and 90 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 2021-01-31Temperature 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, Pittsburgh, PA at 12:00Z on 2021-01-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.19395878Sfc1 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
525 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
371 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WWUS41 KPBZ 312142
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
442 PM EST Sun Jan 31 2021

PAZ074-076-WVZ511>514-010545-
/O.UPG.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
/O.NEW.KPBZ.WS.W.0002.210131T2142Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
442 PM EST Sun Jan 31 2021

...WINTER STORM WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...

* WHAT...Heavy snow and mixed precipitation. Additional snow
  accumulations of 3 to 6 inches and ice accumulations of a light
  glaze.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Plan on snow and ice covered roads.

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-WVZ510-010545-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Fayette-Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown and Coopers Rock
442 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Additional snow accumulations of two to four inches and 
  a light glaze of ice accumulation is also possible.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$

OHZ039>041-049-050-PAZ013>016-020>023-029-073-WVZ001-002-010545-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-
Washington-Westmoreland-Hancock-Brooke-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Indiana, 
Washington, Canonsburg, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Weirton, Follansbee, 
and Wellsburg
442 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional snow accumulation two to four inches.

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

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$
8 follow-up statements
454 
WWUS41 KPBZ 312342
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
642 PM EST Sun Jan 31 2021

PAZ074-076-WVZ511>514-010745-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
642 PM EST Sun Jan 31 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Heavy snow and mixed precipitation. Additional snow
  accumulations of 4 to 6 inches and ice accumulations of a light
  glaze.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Plan on snow and ice covered roads.

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.

&&

$$

PAZ031-WVZ003-004-012-021-509-010745-
/O.EXA.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Greene-Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of Waynesburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, and Morgantown
642 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of 1
  to 3 inches and ice accumulations of a light glaze.

* WHERE...Portions of southwest Pennsylvania and northern and 
  the northern panhandle of West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$

PAZ075-WVZ510-010745-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Fayette-Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown and Coopers Rock
642 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Additional snow accumulations of three to five inches 
  and a light glaze of ice accumulation is also possible.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$

OHZ039>041-049-050-PAZ013>016-020>023-029-073-WVZ001-002-010745-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-
Washington-Westmoreland-Hancock-Brooke-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Indiana, 
Washington, Canonsburg, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Weirton, Follansbee, 
and Wellsburg
642 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional snow accumulation two to four inches.

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

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$
691 
WWUS41 KPBZ 010220
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
920 PM EST Sun Jan 31 2021

PAZ074-076-WVZ511>514-011030-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
920 PM EST Sun Jan 31 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Heavy snow and mixed precipitation. Additional snow
  accumulations of 3 to 5 inches and ice accumulations of a light
  glaze.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Plan on snow and ice covered roads.

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.

&&

$$

PAZ031-WVZ003-004-012-021-509-011030-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Greene-Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of Waynesburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, and Morgantown
920 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Mixed precipitation. Additional snow accumulations of 2
  to 3 inches and ice accumulations of a light glaze.

* WHERE...Portions of southwest Pennsylvania and northern and 
  the northern panhandle of West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$

PAZ075-WVZ510-011030-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Fayette-Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown and Coopers Rock
920 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Additional snow accumulations of two to four inches and 
  a light glaze of ice accumulation is also possible.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.


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.

&&

$$

OHZ039>041-049-050-PAZ013>016-020>023-029-073-WVZ001-002-011030-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-
Washington-Westmoreland-Hancock-Brooke-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Indiana, 
Washington, Canonsburg, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Weirton, Follansbee, 
and Wellsburg
920 PM EST Sun Jan 31 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional snow accumulation two to four inches.

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

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Travel could be difficult.

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.

&&

$$
093 
WWUS41 KPBZ 010822
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
322 AM EST Mon Feb 1 2021

PAZ074-076-WVZ511>514-011630-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
322 AM EST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of 3 to 5 inches.

* WHERE...Higher elevations of southwestern Pennsylvania and 
  northern West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will lead to hazardous
  driving conditions.

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.

&&

$$

PAZ031-WVZ003-004-012-021-509-011630-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Greene-Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of Waynesburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, and Morgantown
322 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of 1 to 2 inches.

* WHERE...Southwestern Pennsylvania and northern West Virginia,
  including the northern panhandle.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel 
  difficult.

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.

&&

$$

PAZ075-WVZ510-011630-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Fayette-Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown and Coopers Rock
322 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of two to four inches and 
  a light glaze of ice accumulation is also possible.

* WHERE...Southwestern Pennsylvania and northern West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel
  difficult.

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.

&&

$$

OHZ039>041-049-050-PAZ013>016-020>023-029-073-WVZ001-002-011630-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-
Washington-Westmoreland-Hancock-Brooke-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Indiana, 
Washington, Canonsburg, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Weirton, Follansbee, 
and Wellsburg
322 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation 1 to 3 inches. Locally
  higher amounts are possible near the ridges of western
  Pennsylvania.

* WHERE...Western Pennsylvania and the northern panhandle of West
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel  
  difficult.

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.

&&

$$

Kramar
697 
WWUS41 KPBZ 011627
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
1127 AM EST Mon Feb 1 2021

PAZ074-076-WVZ511>514-020200-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
1127 AM EST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of 2 to 4 inches.

* WHERE...Higher elevations of southwestern Pennsylvania and 
  northern West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will lead to hazardous 
  driving conditions.

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.

&&

$$

PAZ031-WVZ003-004-012-021-509-020200-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Greene-Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of Waynesburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, and Morgantown
1127 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of 1 to 2 inches.

* WHERE...Southwestern Pennsylvania and northern West Virginia, 
  including the northern panhandle.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel 
  difficult.

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.

&&

$$

PAZ075-WVZ510-020200-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Fayette-Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Uniontown and Coopers Rock
1127 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation of 2 to 4 inches with
  localized higher amounts in the higher terrain.

* WHERE...Southwestern Pennsylvania and northern West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel 
  difficult.

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.

&&

$$

OHZ039>041-049-050-PAZ013>016-020>023-029-073-WVZ001-002-020200-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-Indiana-
Washington-Westmoreland-Hancock-Brooke-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Punxsutawney, 
Brookville, Aliquippa, Beaver Falls, Ambridge, Monaca, 
Pittsburgh Metro Area, Kittanning, Ford City, Indiana, 
Washington, Canonsburg, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Weirton, Follansbee, 
and Wellsburg
1127 AM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional accumulation 1 to 3 inches. Locally 
  higher amounts are possible near the ridges of western 
  Pennsylvania.

* WHERE...Western Pennsylvania and the northern panhandle of 
  West Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Snow- and ice-covered roads will make travel 
  difficult.

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.

&&

$$
523 
WWUS41 KPBZ 011912
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
212 PM EST Mon Feb 1 2021

OHZ039>041-049-050-PAZ013>015-020-021-029-031-WVZ001>004-012-021-
509-012015-
/O.CAN.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Lawrence-
Butler-Clarion-Beaver-Allegheny-Washington-Greene-Hancock-Brooke-
Ohio-Marshall-Wetzel-Marion-Monongalia-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, East Liverpool, Salem, Columbiana, Cadiz, Steubenville, 
New Castle, Ellwood City, Butler, Clarion, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Weirton, Follansbee, 
Wellsburg, Wheeling, Moundsville, New Martinsville, Fairmont, 
and Morgantown
212 PM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Although light snow will continue today and overnight, additional
accumulation between 1 to 2 inches is expected which is below
advisory criteria.

$$

PAZ074-076-WVZ511>514-020300-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
212 PM EST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Additional snow accumulations of 2 to 3 inches.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

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

&&

$$

PAZ016-022-023-073-075-WVZ510-020300-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Jefferson PA-Armstrong-Indiana-Westmoreland-Fayette-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Punxsutawney, Brookville, Kittanning, 
Ford City, Indiana, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Uniontown, and Coopers Rock
212 PM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 3 inches.

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

* WHEN...Until 6 AM EST Tuesday.

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

&&

$$
652 
WWUS41 KPBZ 020008
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
708 PM EST Mon Feb 1 2021

PAZ074-076-WVZ511>514-020815-
/O.CON.KPBZ.WS.W.0002.000000T0000Z-210202T1100Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
708 PM EST Mon Feb 1 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Additional snow accumulations of 2 to 3 inches.

* WHERE...Portions of southwest Pennsylvania and northern West 
  Virginia.

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions.

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.

&&

$$

PAZ016-022-023-073-075-WVZ510-020815-
/O.CON.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Jefferson PA-Armstrong-Indiana-Westmoreland-Fayette-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Punxsutawney, Brookville, Kittanning, 
Ford City, Indiana, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Uniontown, and Coopers Rock
708 PM EST Mon Feb 1 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 2 inches.

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

* WHEN...Until 6 AM EST Tuesday.

* IMPACTS...Plan on slippery road conditions.

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.

&&

$$
512 
WWUS41 KPBZ 020732
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
232 AM EST Tue Feb 2 2021

PAZ016-022-023-073-075-WVZ510-020845-
/O.CAN.KPBZ.WW.Y.0008.000000T0000Z-210202T1100Z/
Jefferson PA-Armstrong-Indiana-Westmoreland-Fayette-
Ridges of Eastern Monongalia and Northwestern Preston-
Including the cities of Punxsutawney, Brookville, Kittanning, 
Ford City, Indiana, Murrysville, Greensburg, New Kensington, 
Lower Burrell, Latrobe, Monessen, Uniontown, and Coopers Rock
232 AM EST Tue Feb 2 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Areas of light snow will continue this morning, though additional
accumulation should be less than an inch.

$$

PAZ074-076-WVZ511>514-021500-
/O.EXT.KPBZ.WS.W.0002.000000T0000Z-210202T1500Z/
Higher Elevations of Westmoreland-Higher Elevations of Fayette-
Preston-Eastern Preston-Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
232 AM EST Tue Feb 2 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Additional snow accumulations of 1 to 3 inches.

* WHERE...Portions of the higher terrain of southwest 
  Pennsylvania and northern West Virginia.

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

* IMPACTS...Plan on slippery road conditions.

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.

&&

$$
643 
WWUS41 KPBZ 021502
WSWPBZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pittsburgh PA
Issued by National Weather Service Charleston WV
1002 AM EST Tue Feb 2 2021

PAZ074-076-WVZ511>514-021615-
/O.EXP.KPBZ.WS.W.0002.000000T0000Z-210202T1500Z/
Westmoreland Ridges-Fayette Ridges-Preston-Eastern Preston-
Western Tucker-Eastern Tucker-
Including the cities of Ligonier, Donegal, Champion, Ohiopyle, 
Kingwood, Bruceton Mills, Terra Alta, Rowlesburg, Hazelton, 
Parsons, Hendricks, Saint George, Davis, Thomas, 
and Canaan Valley
1002 AM EST Tue Feb 2 2021

...WINTER STORM WARNING HAS EXPIRED...

The heaviest of the accumulating snow is over. Therefore, the 
warning has been allowed to expire.

Watch for slick and snow covered spots, as temperatures remain in
the teens and 20s this morning, and below freezing today.

$$

Nearby

Winter Storm Warnings in West Virginia, 2021Winter Storm Warnings in Pennsylvania, 2021Every winter 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.