Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 56, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 20, 2021, 6:51 PM EDT for Venango County, Pennsylvania. It was in force for 24 min. 2 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
- Jun 20, 2021, 6:51 PM EDT (22:51 UTC)
- Expired
- Jun 20, 2021, 7:15 PM EDT
- In force
- 24 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Venango County, PA
The radar
The Pittsburgh radar (KPBZ), 112 km from the middle of the area, began a volume at 22:51 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 20, 7:00 PM EDT | TSTM WND DMG | Franklin, PA | TREES DOWN ON GARFIELD STREET |
| Jun 20, 7:08 PM EDT | TSTM WND DMG | Oil City, PA | TREES DOWN ON COLBERT AVENUE |
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, 10.9 hours before the alert went out and 120 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
- 1056 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.2
The text
As transmitted.
913
WUUS51 KPBZ 202251
SVRPBZ
PAC121-202315-
/O.NEW.KPBZ.SV.W.0056.210620T2251Z-210620T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
651 PM EDT Sun Jun 20 2021
The National Weather Service in Pittsburgh has issued a
* Severe Thunderstorm Warning for...
Central Venango County in northwestern Pennsylvania...
* Until 715 PM EDT.
* At 651 PM EDT, a severe thunderstorm was located over Sugarcreek,
or near Franklin, moving east at 25 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...
Oil City... Franklin...
Sugarcreek... Hasson Heights...
Seneca... Rouseville...
Cooperstown... Woodland Heights...
Oil Creek State Park... Cranberry Township...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter indoors and stay away from windows.
Please report severe weather by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4159 7953 4134 7953 4133 7954 4132 7954
4135 7990 4152 7990
TIME...MOT...LOC 2251Z 264DEG 23KT 4145 7982
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
493
WWUS51 KPBZ 202258
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
658 PM EDT Sun Jun 20 2021
PAC121-202315-
/O.CON.KPBZ.SV.W.0056.000000T0000Z-210620T2315Z/
Venango PA-
658 PM EDT Sun Jun 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CENTRAL VENANGO COUNTY...
At 657 PM EDT, a severe thunderstorm was located over Sugarcreek, or
near Oil City, moving east at 25 mph.
HAZARD...Wind gusts to 60 mph.
SOURCE...Radar.
IMPACT...Expect damage to trees and power lines, resulting in some
power outages.
Locations impacted include...
Oil City... Franklin...
Sugarcreek... Hasson Heights...
Seneca... Rouseville...
Cooperstown... Woodland Heights...
Oil Creek State Park... Cranberry Township...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter indoors and stay away from windows.
Please report severe weather by calling 412-262-1988, posting to
the NWS Pittsburgh Facebook page, or using Twitter @NWSPITTSBURGH.
&&
LAT...LON 4159 7953 4134 7953 4133 7954 4132 7954
4135 7990 4152 7990
TIME...MOT...LOC 2257Z 270DEG 22KT 4144 7977
HAIL...<.75IN
WIND...60MPH
$$091
WWUS51 KPBZ 202309
SVSPBZ
Severe Weather Statement
National Weather Service Pittsburgh PA
709 PM EDT Sun Jun 20 2021
PAC121-202318-
/O.EXP.KPBZ.SV.W.0056.000000T0000Z-210620T2315Z/
Venango PA-
709 PM EDT Sun Jun 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL VENANGO COUNTY WILL
EXPIRE AT 715 PM EDT...
The storm which prompted the warning has weakened so the warning
will be allowed to expire.
LAT...LON 4159 7953 4134 7953 4133 7954 4132 7954
4135 7990 4152 7990
TIME...MOT...LOC 2308Z 264DEG 23KT 4145 7968
$$The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 9:31 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver, Lawrence | 29 min |
| Jun 19, 10:00 PM EDT | Special Weather Statement | PBZ | Beaver | 30 min |
| Jun 19, 10:30 PM EDT | Special Weather Statement | PBZ | Beaver | 30 min |
| Jun 19, 11:00 PM EDT | Special Weather Statement | PBZ | Allegheny | 30 min |
| Jun 19, 11:07 PM EDT | Special Weather Statement | PBZ | Mercer | 23 min |
| Jun 19, 11:30 PM EDT | Special Weather Statement | PBZ | Mercer | 30 min |
| Jun 19, 11:57 PM EDT | Special Weather Statement | PBZ | Mercer | 33 min |
| Jun 20, 5:38 PM EDT | Special Weather Statement | PBZ | Mercer | 22 min |
| Jun 20, 6:14 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer, Venango | 17 min |
| Jun 20, 6:48 PM EDT | Special Weather Statement | PBZ | Venango | 27 min |
Nearby
Severe 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.