Alert archive / Ohio / Freeze Warnings in 2021

Freeze Warning 2, NWS Pittsburgh, PA

April 22, 20219 counties in West Virginia; 10 counties in Ohio; 6 counties in Pennsylvania

NWS Pittsburgh, PA issued this freeze warning at Apr 22, 2021, 2:39 AM EDT for 9 counties in West Virginia; 10 counties in Ohio; 6 counties in Pennsylvania. It took effect at Apr 23, 2021, 1:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 22, 2021, 2:39 AM EDT (06:39 UTC)
In effect from
Apr 23, 2021, 1:00 AM EDT
Expired
Apr 23, 2021, 9:00 AM EDT
In force
8 hr
Issued by
NWS Pittsburgh, PA
All 25 counties

Belmont County, OH, Carroll 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, Beaver County, PA, Fayette County, PA, Greene 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, Preston County, WV, Tucker County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 65 km from the middle of the area, began a volume at 06:39 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 00:00Z, 6.7 hours before the alert went out and 61 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 00:00Z on 2021-04-22Temperature 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 00:00Z on 2021-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1494 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

411 
WWUS71 KPBZ 220639
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
239 AM EDT Thu Apr 22 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-221400-
/O.UPG.KPBZ.FZ.A.0002.210423T0500Z-210423T1300Z/
/O.NEW.KPBZ.FZ.W.0002.210423T0500Z-210423T1300Z/
/O.CON.KPBZ.FZ.W.0001.000000T0000Z-210422T1400Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
239 AM EDT Thu Apr 22 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT FRIDAY...

* WHAT...For the first Freeze Warning, sub-freezing temperatures 
  as low as 27. For the second Freeze Warning, sub-freezing 
  temperatures as low as 29 expected.

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

* WHEN...For the first Freeze Warning, until 10 AM EDT this 
  morning. For the second Freeze Warning, from 1 AM to 9 AM EDT 
  Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
5 follow-up statements
699 
WWUS71 KPBZ 221353
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
953 AM EDT Thu Apr 22 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-222100-
/O.EXP.KPBZ.FZ.W.0001.000000T0000Z-210422T1400Z/
/O.CON.KPBZ.FZ.W.0002.210423T0500Z-210423T1300Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
953 AM EDT Thu Apr 22 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
FRIDAY...
...FREEZE WARNING WILL EXPIRE AT 10 AM EDT THIS MORNING...

* WHAT...The Freezing Warning for today is being expired as area
  temperature returns above freezing. Sub-freezing temperatures as
  low as 29 are expected Friday morning.

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

* WHEN...The first Freeze Warning will expire at 10 AM EDT. For 
  the second Freeze Warning, from 1 AM to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
030 
WWUS71 KPBZ 221649
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
1249 PM EDT Thu Apr 22 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-230130-
/O.CON.KPBZ.FZ.W.0002.210423T0500Z-210423T1300Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
1249 PM EDT Thu Apr 22 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 29 are expected.

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

* WHEN...From 1 AM to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
352 
WWUS71 KPBZ 230057
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
857 PM EDT Thu Apr 22 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-230900-
/O.CON.KPBZ.FZ.W.0002.210423T0500Z-210423T1300Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
857 PM EDT Thu Apr 22 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 29 are expected.

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

* WHEN...From 1 AM to 9 AM EDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
049 
WWUS71 KPBZ 230742
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
342 AM EDT Fri Apr 23 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-231300-
/O.CON.KPBZ.FZ.W.0002.000000T0000Z-210423T1300Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
342 AM EDT Fri Apr 23 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as the upper 20s.

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

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
354 
WWUS71 KPBZ 231247
NPWPBZ

URGENT - WEATHER MESSAGE
National Weather Service Pittsburgh PA
847 AM EDT Fri Apr 23 2021

OHZ039-040-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-509>511-513-231400-
/O.EXP.KPBZ.FZ.W.0002.000000T0000Z-210423T1300Z/
Tuscarawas-Carroll-Coshocton-Harrison-Jefferson OH-Muskingum-
Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington-Greene-
Westmoreland-Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-
Monongalia-Ridges of Eastern Monongalia and Northwestern Preston-
Preston-Western Tucker-
Including the cities of New Philadelphia, Dover, Carrollton, 
Malvern, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, 
Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, 
Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, 
Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, 
New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, 
Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, 
New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, 
Bruceton Mills, Parsons, Hendricks, and Saint George
847 AM EDT Fri Apr 23 2021

...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING...

Temperatures have climbed into the mid 30s to the lower 40s across
the area.

$$

Nearby

Freeze Warnings in Ohio, 2021Freeze Warnings in West Virginia, 2021Freeze Warnings in Pennsylvania, 2021Every freeze 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.