Alert archive / West Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Pittsburgh, PA

May 26, 2021Brooke County, Hancock County, West Virginia; Harrison County, Jefferson County, Ohio; Beaver County, Washington County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at May 26, 2021, 4:23 PM EDT for Brooke County, Hancock County, West Virginia; Harrison County, Jefferson County, Ohio; Beaver County, Washington County, Pennsylvania. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 26, 2021, 4:23 PM EDT (20:23 UTC)
Expired
May 26, 2021, 4:45 PM EDT
In force
22 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Harrison County, OH, Jefferson County, OH, Beaver County, PA, Washington County, PA, Brooke County, WV, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 40 km from the middle of the area, began a volume at 20:26 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 watch it was issued in

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

IssuedProductOfficeLasted
May 26, 12:59 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.4 hours before the alert went out and 46 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 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 71 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 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.193958Sfc1 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
71 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1654 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

971 
WUUS51 KPBZ 262023
SVRPBZ
OHC067-081-PAC007-125-WVC009-029-262045-
/O.NEW.KPBZ.SV.W.0007.210526T2023Z-210526T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
423 PM EDT Wed May 26 2021

The National Weather Service in Pittsburgh has issued a

* Severe Thunderstorm Warning for...
  Northeastern Harrison County in east central Ohio...
  Central Jefferson County in east central Ohio...
  Southwestern Beaver County in western Pennsylvania...
  Northwestern Washington County in southwestern Pennsylvania...
  Brooke County in northern West Virginia...
  Hancock County in northern West Virginia...

* Until 445 PM EDT.

* At 422 PM EDT, a cluster of showers with gusty wind was centered 
  near Wintersville, or 7 miles southwest of Steubenville, moving 
  northeast at 50 mph.

  HAZARD...Wind gusts to 60 mph.

  SOURCE...Radar.

  IMPACT...Expect damage to trees and power lines, resulting in some 
           power outages.

* Locations impacted include...
  Weirton...                        Steubenville...
  Wellsburg...                      Avella...
  Toronto...                        Wintersville...
  Mingo Junction...                 Follansbee...
  Midland...                        Hooverson Heights...
  Industry...                       New Cumberland...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a building.

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

&&

LAT...LON 4021 8078 4037 8089 4067 8037 4031 8035
TIME...MOT...LOC 2022Z 242DEG 45KT 4031 8077 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
236 
WWUS51 KPBZ 262037
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
437 PM EDT Wed May 26 2021

OHC067-081-PAC007-125-WVC009-029-262047-
/O.EXP.KPBZ.SV.W.0007.000000T0000Z-210526T2045Z/
Harrison OH-Jefferson OH-Beaver PA-Washington PA-Brooke WV-
Hancock WV-
437 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARRISON...
CENTRAL JEFFERSON...SOUTHWESTERN BEAVER...NORTHWESTERN WASHINGTON...
BROOKE AND HANCOCK COUNTIES WILL EXPIRE AT 445 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
east central Ohio...western and southwestern Pennsylvania...and
northern West Virginia.

LAT...LON 4021 8078 4037 8089 4067 8037 4031 8035
TIME...MOT...LOC 2037Z 242DEG 45KT 4038 8059 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 3:21 PM EDTSevere Thunderstorm WarningPBZMarion, Monongalia, Preston27 min
May 26, 3:58 PM EDTSpecial Weather StatementPBZHarrison32 min
May 26, 11:55 AM EDTSpecial Weather StatementPBZWestmoreland35 min
May 26, 12:14 PM EDTSpecial Weather StatementPBZWestmoreland31 min
May 26, 12:34 PM EDTSpecial Weather StatementPBZWestmoreland26 min
May 26, 1:13 PM EDTSevere Thunderstorm WarningPBZJefferson17 min
May 26, 2:24 PM EDTSevere Thunderstorm WarningPBZMercer51 min
May 26, 3:08 PM EDTSpecial Weather StatementPBZVenango37 min
May 26, 4:21 PM EDTSevere Thunderstorm WarningPBZFayette, Westmoreland26 min
May 26, 5:00 PM EDTSpecial Weather StatementPBZGreene30 min
May 26, 5:19 PM EDTSpecial Weather StatementPBZAllegheny26 min
May 26, 6:06 PM EDTSpecial Weather StatementPBZIndiana, Westmoreland24 min
May 26, 6:17 PM EDTSevere Thunderstorm WarningPBZIndiana, Westmoreland12 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2021Severe Thunderstorm Warnings in Ohio, 2021Severe Thunderstorm Warnings in Pennsylvania, 2021Every severe thunderstorm 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.