Alert archive / Ohio / Tornado Warnings in 2021

Tornado Warning 23, NWS Pittsburgh, PA

October 21, 2021Belmont County, Harrison County, Jefferson County, Ohio; Brooke County, Ohio County, West Virginia; Washington County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Oct 21, 2021, 6:57 PM EDT for Belmont County, Harrison County, Jefferson County, Ohio; Brooke County, Ohio County, West Virginia; Washington County, Pennsylvania. It was in force for 33 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 21, 2021, 6:57 PM EDT (22:57 UTC)
Expired
Oct 21, 2021, 7:30 PM EDT
In force
33 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Belmont County, OH, Harrison County, OH, Jefferson County, OH, Washington County, PA, Brooke County, WV, Ohio County, WV

The radar

The Pittsburgh radar (KPBZ), 61 km from the middle of the area, began a volume at 22:59 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
Oct 21, 7:01 PM EDTTSTM WND DMG1 Nnw Pleasant Grove, OHREPORT OF DAMAGE TO TREES AND UPLIFTING OF SHRUBS. POSSIBLE TORNADO. TIME ESTIMATED BASED ON RADAR.
Oct 21, 7:03 PM EDTTORNADO1 Wsw Mount Pleasant, OHPOSSIBLE TOUCH DOWN OF A TORNADO NEAR ROUTE 102 IN A FIELD NEAR MT. PLEASANT AREA. POWER LINES AND TREES DOWN.
Oct 21, 7:04 PM EDTTSTM WND DMGMount Pleasant, OHHOME DESTROYED, TREES DAMAGED IN MOUNT PLEASANT. POSSIBLE TORNADO
Oct 21, 7:04 PM EDTTORNADOMount Pleasant, OHEF1 TORNADO CONFIRMED. CONSIDERABLE DAMAGE TO TREES AND BARNS WITH SOME DAMAGE TO HOUSE SIDING.

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, 11.0 hours before the alert went out and 62 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 2021-10-21Temperature 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 2021-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
1175 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

804 
WFUS51 KPBZ 212257
TORPBZ
OHC013-067-081-PAC125-WVC009-069-212330-
/O.NEW.KPBZ.TO.W.0023.211021T2257Z-211021T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Pittsburgh PA
657 PM EDT Thu Oct 21 2021

The National Weather Service in Pittsburgh has issued a

* Tornado Warning for...
  Southeastern Harrison County in east central Ohio...
  Southern Jefferson County in east central Ohio...
  Northeastern Belmont County in east central Ohio...
  West central Washington County in southwestern Pennsylvania...
  Ohio County in northern West Virginia...
  Brooke County in northern West Virginia...

* Until 730 PM EDT.
    
* At 657 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near St. Clairsville, moving east at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Wheeling, Martins Ferry and Warwood around 715 PM EDT.
  Clearview and Tiltonsville around 720 PM EDT.
  Wellsburg, West Liberty and Valley Grove around 725 PM EDT.
  Avella around 730 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Franklin, West Alexander, Windsor Heights, Mount Pleasant,
Dillonvale, Clinton, Harrisville, Beech Bottom, Brilliant and
Rayland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report severe weather by calling 412-262-1988, posting to 
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. 

&&

LAT...LON 4010 8096 4021 8097 4033 8044 4006 8042
TIME...MOT...LOC 2257Z 262DEG 35KT 4015 8094 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
4 follow-up statements
876 
WWUS51 KPBZ 212303
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
703 PM EDT Thu Oct 21 2021

OHC013-067-081-PAC125-WVC009-069-212330-
/O.CON.KPBZ.TO.W.0023.000000T0000Z-211021T2330Z/
Harrison OH-Jefferson OH-Belmont OH-Washington PA-Ohio WV-Brooke WV-
703 PM EDT Thu Oct 21 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN HARRISON...SOUTHEASTERN JEFFERSON...NORTHEASTERN
BELMONT...WEST CENTRAL WASHINGTON...OHIO AND BROOKE COUNTIES...
    
At 702 PM EDT, a severe thunderstorm capable of producing a tornado
was located near St. Clairsville, moving east at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Wheeling, Martins Ferry, Warwood and Tiltonsville around 715 PM 
  EDT.
  Clearview around 720 PM EDT.
  Wellsburg, West Liberty and Valley Grove around 725 PM EDT.
  Avella around 730 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Franklin, West Alexander, Windsor Heights, Mount Pleasant,
Dillonvale, Clinton, Harrisville, Beech Bottom, Brilliant and
Rayland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report severe weather by calling 412-262-1988, posting to 
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. 

&&

LAT...LON 4012 8091 4021 8091 4033 8044 4006 8042
TIME...MOT...LOC 2302Z 262DEG 35KT 4016 8087 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
149 
WWUS51 KPBZ 212308
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
708 PM EDT Thu Oct 21 2021

OHC067-212318-
/O.CAN.KPBZ.TO.W.0023.000000T0000Z-211021T2330Z/
Harrison OH-
708 PM EDT Thu Oct 21 2021

...THE TORNADO WARNING FOR SOUTHEASTERN HARRISON COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4013 8087 4023 8084 4033 8044 4006 8042
TIME...MOT...LOC 2308Z 262DEG 35KT 4017 8079 

$$

OHC013-081-PAC125-WVC009-069-212330-
/O.CON.KPBZ.TO.W.0023.000000T0000Z-211021T2330Z/
Jefferson OH-Belmont OH-Washington PA-Ohio WV-Brooke WV-
708 PM EDT Thu Oct 21 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN JEFFERSON...NORTHEASTERN BELMONT...WEST CENTRAL
WASHINGTON...OHIO AND BROOKE COUNTIES...
    
At 708 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Tiltonsville, or near Clearview, moving east at 40
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Clearview and Tiltonsville around 715 PM EDT.
  Wellsburg, West Liberty and Valley Grove around 725 PM EDT.
  Avella around 735 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Brilliant, Franklin, West Alexander, Windsor Heights, Rayland, Mount
Pleasant, Yorkville, Dillonvale, Bethany and Clinton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report severe weather by calling 412-262-1988, posting to 
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. 

&&

LAT...LON 4013 8087 4023 8084 4033 8044 4006 8042
TIME...MOT...LOC 2308Z 262DEG 35KT 4017 8079 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
993 
WWUS51 KPBZ 212316
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
716 PM EDT Thu Oct 21 2021

OHC013-081-PAC125-WVC009-069-212330-
/O.CON.KPBZ.TO.W.0023.000000T0000Z-211021T2330Z/
Jefferson OH-Belmont OH-Washington PA-Ohio WV-Brooke WV-
716 PM EDT Thu Oct 21 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN JEFFERSON...NORTHEASTERN BELMONT...WEST CENTRAL
WASHINGTON...OHIO AND BROOKE COUNTIES...
    
At 716 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Tiltonsville, or over Clearview, moving east at 40
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Wellsburg, West Liberty and Valley Grove around 725 PM EDT.
  Avella around 735 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Brilliant, Franklin, West Alexander, Windsor Heights, Rayland,
Yorkville, Bethany, Clinton and Beech Bottom.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report severe weather by calling 412-262-1988, posting to 
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. 

&&

LAT...LON 4012 8079 4025 8075 4033 8044 4006 8042
TIME...MOT...LOC 2316Z 262DEG 35KT 4018 8069 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$
734 
WWUS51 KPBZ 212322
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
722 PM EDT Thu Oct 21 2021

OHC013-081-PAC125-WVC009-069-212330-
/O.CON.KPBZ.TO.W.0023.000000T0000Z-211021T2330Z/
Jefferson OH-Belmont OH-Washington PA-Ohio WV-Brooke WV-
722 PM EDT Thu Oct 21 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHEASTERN JEFFERSON...NORTHEASTERN BELMONT...WEST CENTRAL
WASHINGTON...OHIO AND BROOKE COUNTIES...
    
At 722 PM EDT, a severe thunderstorm capable of producing a tornado
was located over West Liberty, moving east at 40 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Avella around 735 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Brilliant, Franklin, West Alexander, Windsor Heights, Rayland,
Bethany, Clinton, Beech Bottom and Yorkville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Please report severe weather by calling 412-262-1988, posting to 
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH. 

&&

LAT...LON 4014 8071 4027 8067 4033 8044 4006 8042
TIME...MOT...LOC 2322Z 262DEG 35KT 4019 8061 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 21, 1:28 PM EDTSpecial Weather StatementPBZColumbiana32 min
Oct 21, 2:19 PM EDTSpecial Weather StatementPBZCarroll, Columbiana26 min
Oct 21, 2:50 PM EDTSpecial Weather StatementPBZColumbiana25 min
Oct 21, 4:56 PM EDTSpecial Weather StatementPBZCoshocton, Muskingum49 min
Oct 21, 5:16 PM EDTSevere Thunderstorm WarningPBZCoshocton, Tuscarawas44 min
Oct 21, 5:36 PM EDTSpecial Weather StatementPBZCarroll, Columbiana39 min
Oct 21, 5:38 PM EDTSevere Thunderstorm WarningPBZCoshocton, Guernsey, Muskingum, Tuscarawas22 min
Oct 21, 6:18 PM EDTSpecial Weather StatementPBZBelmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson42 min
Oct 21, 6:25 PM EDTTornado WarningPBZBelmont, Guernsey, Harrison35 min
Oct 21, 6:36 PM EDTSpecial Weather StatementPBZMonroe39 min
Oct 21, 7:13 PM EDTTornado WarningPBZBelmont32 min
Oct 21, 7:26 PM EDTTornado WarningPBZJefferson34 min
Oct 21, 4:08 PM EDTSpecial Weather StatementPBZMarshall, Ohio37 min
Oct 21, 2:03 PM EDTSevere Thunderstorm WarningPBZButler, Lawrence, Mercer, Venango27 min
Oct 21, 2:36 PM EDTSpecial Weather StatementPBZMercer, Venango24 min
Oct 21, 3:18 PM EDTSpecial Weather StatementPBZButler, Lawrence27 min
Oct 21, 3:49 PM EDTSpecial Weather StatementPBZClarion, Forest, Venango41 min
Oct 21, 4:32 PM EDTSpecial Weather StatementPBZClarion, Forest, Jefferson43 min
Oct 21, 4:47 PM EDTSpecial Weather StatementPBZAllegheny, Washington43 min
Oct 21, 5:48 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana, Jefferson27 min
Oct 21, 6:00 PM EDTSpecial Weather StatementPBZLawrence, Mercer, Venango45 min
Oct 21, 6:42 PM EDTTornado WarningPBZMercer18 min
Oct 21, 6:56 PM EDTTornado WarningPBZBeaver, Butler, Lawrence19 min
Oct 21, 7:19 PM EDTSpecial Weather StatementPBZAllegheny, Beaver, Butler41 min
Oct 21, 7:24 PM EDTTornado WarningPBZButler36 min
Oct 21, 7:40 PM EDTTornado WarningPBZAllegheny, Beaver, Westmoreland20 min

Nearby

Tornado Warnings in Ohio, 2021Tornado Warnings in West Virginia, 2021Tornado Warnings in Pennsylvania, 2021Every tornado warning in 2021Tornadoes 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.