Alert archive / West Virginia / Tornado Warnings in 2021

Tornado Warning 14, NWS Pittsburgh, PA

July 29, 2021Marshall County, Ohio County, West Virginia; Greene County, Washington County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 29, 2021, 5:48 PM EDT for Marshall County, Ohio County, West Virginia; Greene County, Washington County, Pennsylvania. It was in force for 27 min. 3 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
Jul 29, 2021, 5:48 PM EDT (21:48 UTC)
Expired
Jul 29, 2021, 6:15 PM EDT
In force
27 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Greene County, PA, Washington County, PA, Marshall County, WV, Ohio County, WV

The radar

The Pittsburgh radar (KPBZ), 70 km from the middle of the area, began a volume at 21:50 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
Jul 29, 5:59 PM EDTTSTM WND DMG1 E Crabapple, PAREPORT OF MULTIPLE TREES DOWN ALONG CRABAPPLE ROAD. TIME ESTIMATED BASED ON RADAR.
Jul 29, 6:00 PM EDTTSTM WND DMG2 N Durbin, PANUMEROUS TREES REPORTED DOWN IN RICHHILL TWP. ALONG DAY ROAD.
Jul 29, 6:01 PM EDTTORNADO2 Ese Majorsville, PACONFIRMED EF1 TORNADO

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 29, 3:13 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.8 hours before the alert went out and 63 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 2021-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
136 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1222 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

957 
WFUS51 KPBZ 292148
TORPBZ
PAC059-125-WVC051-069-292215-
/O.NEW.KPBZ.TO.W.0014.210729T2148Z-210729T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Pittsburgh PA
548 PM EDT Thu Jul 29 2021

The National Weather Service in Pittsburgh has issued a

* Tornado Warning for...
  Southwestern Washington County in southwestern Pennsylvania...
  Northwestern Greene County in southwestern Pennsylvania...
  Ohio County in northern West Virginia...
  Marshall County in northern West Virginia...

* Until 615 PM EDT.
    
* At 548 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Triadelphia, moving southeast at 35 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 tornadic thunderstorm will remain over mainly rural areas of
  southwestern Washington, northwestern Greene, Ohio and Marshall
  Counties, including the following locations... Rocklick, West
  Finley, Aleppo and Dallas.

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 3998 8066 4005 8059 3993 8024 3978 8043
TIME...MOT...LOC 2148Z 304DEG 29KT 3999 8059 

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

$$
2 follow-up statements
165 
WWUS51 KPBZ 292157
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
557 PM EDT Thu Jul 29 2021

PAC059-125-WVC051-069-292215-
/O.CON.KPBZ.TO.W.0014.000000T0000Z-210729T2215Z/
Washington PA-Greene PA-Ohio WV-Marshall WV-
557 PM EDT Thu Jul 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR
SOUTHWESTERN WASHINGTON...NORTHWESTERN GREENE...OHIO AND MARSHALL
COUNTIES...
    
At 557 PM EDT, a severe thunderstorm capable of producing a tornado
was located 8 miles north of Cameron, or 9 miles southeast of
Triadelphia, moving southeast at 35 mph.

HAZARD...Tornado and golf ball size-hail.

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.

Locations impacted include...
West Finley...                    Aleppo...
Rocklick...                       

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 3994 8060 4002 8055 3993 8024 3978 8043
TIME...MOT...LOC 2157Z 304DEG 29KT 3995 8051 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
202 
WWUS51 KPBZ 292205
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
605 PM EDT Thu Jul 29 2021

WVC069-292215-
/O.CAN.KPBZ.TO.W.0014.000000T0000Z-210729T2215Z/
Ohio WV-
605 PM EDT Thu Jul 29 2021

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

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southwestern Pennsylvania...and northern West Virginia.

LAT...LON 3993 8055 4000 8048 3993 8024 3978 8043
TIME...MOT...LOC 2205Z 304DEG 29KT 3991 8044 

$$

PAC059-125-WVC051-292215-
/O.CON.KPBZ.TO.W.0014.000000T0000Z-210729T2215Z/
Washington PA-Greene PA-Marshall WV-
605 PM EDT Thu Jul 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR
SOUTHWESTERN WASHINGTON...NORTHWESTERN GREENE AND MARSHALL
COUNTIES...
    
At 605 PM EDT, a severe thunderstorm capable of producing a tornado
was located 9 miles northeast of Cameron, or 13 miles west of
Waynesburg, moving southeast at 35 mph.

HAZARD...Tornado and golf ball size-hail.

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.

Locations impacted include...
West Finley...                    Aleppo...

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 3993 8055 4000 8048 3993 8024 3978 8043
TIME...MOT...LOC 2205Z 304DEG 29KT 3991 8044 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 4:53 PM EDTTornado WarningPBZBrooke22 min
Jul 29, 5:24 PM EDTSevere Thunderstorm WarningPBZMarshall, Ohio36 min
Jul 29, 5:28 PM EDTSevere Thunderstorm WarningPBZBrooke, Hancock47 min
Jul 29, 5:37 PM EDTSevere Thunderstorm WarningPBZMarshall38 min
Jul 29, 5:39 PM EDTTornado WarningPBZBrooke, Hancock21 min
Jul 29, 5:59 PM EDTTornado Warning Tornado observedPBZBrooke, Hancock, Ohio31 min
Jul 29, 6:08 PM EDTSevere Thunderstorm WarningPBZPreston52 min
Jul 29, 6:12 PM EDTSevere Thunderstorm WarningPBZBrooke, Ohio48 min
Jul 29, 6:32 PM EDTSevere Thunderstorm WarningPBZMarion, Monongalia28 min
Jul 29, 7:00 PM EDTSevere Thunderstorm WarningPBZBrooke, Ohio45 min
Jul 29, 8:47 AM EDTSpecial Weather StatementPBZVenango28 min
Jul 29, 12:51 PM EDTSpecial Weather StatementPBZVenango24 min
Jul 29, 1:58 PM EDTTornado WarningPBZFayette, Westmoreland22 min
Jul 29, 3:34 PM EDTSpecial Weather StatementPBZArmstrong26 min
Jul 29, 4:01 PM EDTSpecial Weather StatementPBZArmstrong29 min
Jul 29, 4:43 PM EDTSpecial Weather StatementPBZBeaver32 min
Jul 29, 5:09 PM EDTSpecial Weather StatementPBZIndiana36 min
Jul 29, 5:15 PM EDTSevere Thunderstorm WarningPBZIndiana30 min
Jul 29, 6:14 PM EDTSevere Thunderstorm WarningPBZGreene32 min
Jul 29, 6:35 PM EDTSpecial Weather StatementPBZWashington25 min
Jul 29, 6:55 PM EDTSpecial Weather StatementPBZWashington35 min
Jul 29, 7:34 PM EDTSpecial Weather StatementPBZGreene26 min

Nearby

Tornado 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.