Alert archive / West Virginia / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 82, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 21, 2021, 4:57 PM EDT for Marshall County, West Virginia; Greene County, Pennsylvania. It was in force for 29 min. 1 report 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
- Jun 21, 2021, 4:57 PM EDT (20:57 UTC)
- Expired
- Jun 21, 2021, 5:26 PM EDT
- In force
- 29 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Greene County, PA, Marshall County, WV
The radar
The Pittsburgh radar (KPBZ), 85 km from the middle of the area, began a volume at 20:57 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 21, 5:03 PM EDT | TSTM WND DMG | Aleppo, PA | MULTIPLE TREES DOWN ACROSS THE COUNTY. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.0 hours before the alert went out and 74 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.
- Mixed-layer CAPE
- 931 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 988 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 260 m²/s²
- 0-3 km storm-relative helicity
- 277 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.1
The text
As transmitted.
098
WUUS51 KPBZ 212057
SVRPBZ
PAC059-WVC051-212145-
/O.NEW.KPBZ.SV.W.0082.210621T2057Z-210621T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
457 PM EDT Mon Jun 21 2021
The National Weather Service in Pittsburgh has issued a
* Severe Thunderstorm Warning for...
Southwestern Greene County in southwestern Pennsylvania...
Marshall County in northern West Virginia...
* Until 545 PM EDT.
* At 457 PM EDT, a severe thunderstorm was located near Cameron, or
15 miles southeast of Moundsville, moving east at 35 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...
Aleppo... Blacksville...
Spraggs... New Freeport...
Brave...
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 3976 8056 3985 8053 3986 8016 3972 8019
3972 8032
TIME...MOT...LOC 2057Z 274DEG 31KT 3981 8049
HAIL...<.75IN
WIND...60MPH
$$4 follow-up statements
422
WWUS51 KPBZ 212108
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
508 PM EDT Mon Jun 21 2021
WVC051-212118-
/O.CAN.KPBZ.SV.W.0082.000000T0000Z-210621T2145Z/
Marshall WV-
508 PM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR MARSHALL COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southwestern Pennsylvania...and northern West Virginia.
LAT...LON 3975 8048 3985 8047 3985 8044 3986 8016
3972 8019 3972 8032
TIME...MOT...LOC 2108Z 274DEG 31KT 3980 8037
$$
PAC059-212145-
/O.CON.KPBZ.SV.W.0082.000000T0000Z-210621T2145Z/
Greene PA-
508 PM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHWESTERN GREENE COUNTY...
At 508 PM EDT, a severe thunderstorm was located 9 miles northeast of
Hundred, or 11 miles southwest of Waynesburg, moving east at 35 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...
Aleppo... Blacksville...
Spraggs... New Freeport...
Brave...
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 3975 8048 3985 8047 3985 8044 3986 8016
3972 8019 3972 8032
TIME...MOT...LOC 2108Z 274DEG 31KT 3980 8037
HAIL...<.75IN
WIND...60MPH
$$204
WWUS51 KPBZ 212118
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
518 PM EDT Mon Jun 21 2021
PAC059-212145-
/O.CON.KPBZ.SV.W.0082.000000T0000Z-210621T2145Z/
Greene PA-
518 PM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHWESTERN GREENE COUNTY...
At 518 PM EDT, a severe thunderstorm was located 8 miles southwest of
Waynesburg, moving east at 35 mph.
HAZARD...Wind gusts to 60 mph.
SOURCE...Radar.
IMPACT...Expect damage to trees and power lines, resulting in some
power outages.
Locations impacted include...
Blacksville... Spraggs...
Brave...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a building.
Please report severe weather by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 3974 8042 3985 8041 3986 8016 3972 8019
3972 8032
TIME...MOT...LOC 2118Z 274DEG 31KT 3979 8025
HAIL...<.75IN
WIND...60MPH
$$579
WWUS51 KPBZ 212122
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
522 PM EDT Mon Jun 21 2021
PAC059-212145-
/O.CON.KPBZ.SV.W.0082.000000T0000Z-210621T2145Z/
Greene PA-
522 PM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTH CENTRAL GREENE COUNTY...
At 522 PM EDT, a severe thunderstorm was located 7 miles south of
Waynesburg, moving east at 35 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...
Blacksville... Spraggs...
Brave...
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 3973 8035 3985 8033 3986 8016 3972 8019
3972 8032
TIME...MOT...LOC 2122Z 270DEG 31KT 3979 8020
HAIL...<.75IN
WIND...60MPH
$$115
WWUS51 KPBZ 212126
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
526 PM EDT Mon Jun 21 2021
PAC059-212136-
/O.CAN.KPBZ.SV.W.0082.000000T0000Z-210621T2145Z/
Greene PA-
526 PM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL GREENE COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southwestern Pennsylvania...and northern West Virginia.
LAT...LON 3973 8035 3985 8033 3986 8016 3972 8019
3972 8032
TIME...MOT...LOC 2124Z 274DEG 31KT 3979 8015
$$The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 1:24 PM EDT | Special Weather Statement | PBZ | Marion | 36 min |
| Jun 21, 1:51 PM EDT | Special Weather Statement | PBZ | Preston | 24 min |
| Jun 21, 1:57 PM EDT | Severe Thunderstorm Warning | PBZ | Hancock | 48 min |
| Jun 21, 2:08 PM EDT | Severe Thunderstorm Warning | PBZ | Preston | 22 min |
| Jun 21, 2:21 PM EDT | Severe Thunderstorm Warning | PBZ | Hancock | 24 min |
| Jun 21, 2:37 PM EDT | Severe Thunderstorm Warning | PBZ | Hancock | 23 min |
| Jun 21, 3:00 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke, Hancock, Ohio | 30 min |
| Jun 21, 3:29 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke, Ohio | 46 min |
| Jun 21, 3:53 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke, Marshall, Ohio | 37 min |
| Jun 21, 4:19 PM EDT | Severe Thunderstorm Warning | PBZ | Marshall, Monongalia, Ohio, Wetzel | 41 min |
| Jun 21, 5:05 PM EDT | Areal Flood Advisory | PBZ | Marshall | 3 hr |
| Jun 21, 5:08 PM EDT | Areal Flood Advisory | PBZ | Marion, Monongalia, Preston, Wetzel | 3 hr |
| Jun 21, 5:41 PM EDT | Special Weather Statement | PBZ | Marion, Monongalia | 34 min |
| Jun 21, 6:07 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Monongalia, Preston | 23 min |
| Jun 21, 6:12 PM EDT | Areal Flood Advisory | PBZ | Marshall, Ohio | 2 hr |
| Jun 21, 6:26 PM EDT | Special Weather Statement | PBZ | Preston | 34 min |
| Jun 21, 6:39 PM EDT | Areal Flood Advisory | PBZ | Brooke, Marshall, Ohio | 2 hr |
| Jun 21, 6:56 PM EDT | Flash Flood Warning | PBZ | Monongalia | 2 hr |
| Jun 21, 7:46 PM EDT | Areal Flood Warning | PBZ | Marion, Monongalia, Preston, Wetzel | 3 hr |
| Jun 20, 8:55 PM EDT | Special Weather Statement | PBZ | Armstrong | 20 min |
| Jun 21, 7:27 AM EDT | Special Weather Statement | PBZ | Lawrence, Mercer | 33 min |
| Jun 21, 2:15 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 30 min |
| Jun 21, 2:45 PM EDT | Severe Thunderstorm Warning | PBZ | Forest, Venango | 30 min |
| Jun 21, 2:51 PM EDT | Tornado Warning | PBZ | Allegheny, Beaver, Butler | 9 min |
| Jun 21, 2:55 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Westmoreland | 35 min |
| Jun 21, 2:58 PM EDT | Tornado Warning | PBZ | Allegheny, Butler | 17 min |
| Jun 21, 3:21 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Indiana, Westmoreland | 24 min |
| Jun 21, 3:25 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Westmoreland | 35 min |
| Jun 21, 3:37 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Jefferson, Westmoreland | 23 min |
| Jun 21, 3:45 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Indiana, Westmoreland | 45 min |
| Jun 21, 3:47 PM EDT | Special Weather Statement | PBZ | Washington | 28 min |
| Jun 21, 3:55 PM EDT | Areal Flood Advisory | PBZ | Allegheny, Westmoreland | 111 min |
| Jun 21, 3:55 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Indiana, Westmoreland | 35 min |
| Jun 21, 3:57 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Jefferson | 33 min |
| Jun 21, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 25 min |
| Jun 21, 4:13 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 32 min |
| Jun 21, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 27 min |
| Jun 21, 4:27 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 33 min |
| Jun 21, 4:28 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 32 min |
| Jun 21, 4:41 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Greene, Washington, Westmoreland | 49 min |
| Jun 21, 4:43 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Westmoreland | 32 min |
| Jun 21, 5:03 PM EDT | Tornado Warning | PBZ | Greene | 6 min |
| Jun 21, 6:43 PM EDT | Special Weather Statement | PBZ | Fayette | 32 min |
| Jun 21, 7:23 PM EDT | Flash Flood Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 3 hr |
Nearby
Severe Thunderstorm Warnings in West Virginia, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.