Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 40, NWS Pittsburgh, PA

June 14, 2021Fayette County, Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 14, 2021, 3:55 PM EDT for Fayette County, Westmoreland County, Pennsylvania. It was in force for 37 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: Jun 14, 2021, 3:55 PM EDT (19:55 UTC)
Expired: Jun 14, 2021, 4:32 PM EDT
In force: 37 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Fayette County, PA, Westmoreland County, PA

The radar

The Pittsburgh radar (KPBZ), 92 km from the middle of the area, began a volume at 19:55 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 14, 4:00 PM EDT	TSTM WND DMG	1 Se Brinkerton, PA	TREES AND WIRES DOWN AROUND MOUNT PLEASANT TOWNSHIP
Jun 14, 4:00 PM EDT	TSTM WND DMG	Armbrust, PA	TREE DOWN ON POWER LINES
Jun 14, 4:23 PM EDT	TSTM WND DMG	Greensburg, PA	TREES DOWN COLLEGE AVE, HAWKSWORTH RD.
Jun 14, 4:24 PM EDT	TSTM WND DMG	Greensburg, PA	WIRES DOWN ON MIDDLETOWN RD. AND BEAVER RD IN HEMPFIELD TWP.

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 14, 11:46 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.9 hours before the alert went out and 78 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1684 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

875 
WUUS51 KPBZ 141955
SVRPBZ
PAC051-129-142045-
/O.NEW.KPBZ.SV.W.0040.210614T1955Z-210614T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Pittsburgh PA
355 PM EDT Mon Jun 14 2021

The National Weather Service in Pittsburgh has issued a

* Severe Thunderstorm Warning for...
  Southern Westmoreland County in southwestern Pennsylvania...
  Northeastern Fayette County in southwestern Pennsylvania...

* Until 445 PM EDT.

* At 354 PM EDT, a severe thunderstorm was located over Mount
  Pleasant, or 8 miles south of Greensburg, moving southeast 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...
  Greensburg...                     Jeannette...
  Mount Pleasant...                 Scottdale...
  Youngwood...                      Lawson Heights...
  New Stanton...                    Ligonier...
  Seven Springs...                  Calumet-Norvelt...
  Madison...                        Arona...

This includes the following highways...
  Interstate 70 in Pennsylvania between mile markers 52 and 57.
  Pennsylvania Turnpike between mile markers 70 and 99.

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 4020 7913 4018 7913 4018 7914 4016 7914
      4016 7916 4014 7916 4011 7918 4012 7921
      4010 7923 4008 7927 3994 7937 4022 7974
      4035 7960 4022 7910
TIME...MOT...LOC 1954Z 301DEG 32KT 4018 7955 

HAIL...<.75IN
WIND...60MPH
 
$$

3 follow-up statements

587 
WWUS51 KPBZ 142010
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
410 PM EDT Mon Jun 14 2021

PAC051-129-142045-
/O.CON.KPBZ.SV.W.0040.000000T0000Z-210614T2045Z/
Westmoreland PA-Fayette PA-
410 PM EDT Mon Jun 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN WESTMORELAND AND NORTHEASTERN FAYETTE COUNTIES...

At 410 PM EDT, a severe thunderstorm was located 7 miles east of
Mount Pleasant, or 11 miles northeast of Connellsville, moving
southeast 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...
Mount Pleasant...                 Seven Springs...
Donegal...                        Champion...
Indian Head...                    Acme...
Jones Mills...                    Laurel Mountain State Park...

This includes Pennsylvania Turnpike between mile markers 82 and 99.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 4016 7914 4016 7916 4014 7916 4011 7918
      4012 7921 4010 7923 4008 7927 3997 7935
      4015 7954 4023 7944 4018 7914
TIME...MOT...LOC 2010Z 303DEG 31KT 4012 7942 

HAIL...<.75IN
WIND...60MPH
 
$$

390 
WWUS51 KPBZ 142023
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
423 PM EDT Mon Jun 14 2021

PAC051-129-142045-
/O.CON.KPBZ.SV.W.0040.000000T0000Z-210614T2045Z/
Westmoreland PA-Fayette PA-
423 PM EDT Mon Jun 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN WESTMORELAND AND NORTHEASTERN FAYETTE COUNTIES...

At 423 PM EDT, a severe thunderstorm was located over Seven Springs,
or 11 miles west of Somerset, moving southeast 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...
Seven Springs...                  Donegal...
Champion...                       Jones Mills...

This includes Pennsylvania Turnpike between mile markers 91 and 99.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with this storm and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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 4012 7921 4010 7923 4008 7927 4001 7932
      4009 7941 4018 7931
TIME...MOT...LOC 2023Z 301DEG 32KT 4006 7929 

HAIL...<.75IN
WIND...60MPH
 
$$

680 
WWUS51 KPBZ 142032
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
432 PM EDT Mon Jun 14 2021

PAC051-129-142042-
/O.CAN.KPBZ.SV.W.0040.000000T0000Z-210614T2045Z/
Westmoreland PA-Fayette PA-
432 PM EDT Mon Jun 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WESTMORELAND AND
NORTHEASTERN FAYETTE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Severe Thunderstorm Watch remains in effect until 600 PM EDT for
southwestern Pennsylvania.

LAT...LON 4012 7921 4010 7923 4008 7927 4001 7932
      4009 7941 4018 7931
TIME...MOT...LOC 2027Z 301DEG 32KT 4002 7920 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 11:13 AM EDT	Special Weather Statement	PBZ	Venango	32 min
Jun 14, 11:17 AM EDT	Severe Thunderstorm Warning	PBZ	Butler, Mercer, Venango	28 min
Jun 14, 11:46 AM EDT	Special Weather Statement	PBZ	Butler	29 min
Jun 14, 11:48 AM EDT	Special Weather Statement	PBZ	Forest	27 min
Jun 14, 12:23 PM EDT	Special Weather Statement	PBZ	Butler	37 min
Jun 14, 12:45 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler, Clarion	30 min
Jun 14, 1:17 PM EDT	Special Weather Statement	PBZ	Allegheny	28 min
Jun 14, 2:24 PM EDT	Special Weather Statement	PBZ	Beaver	36 min
Jun 14, 2:28 PM EDT	Special Weather Statement	PBZ	Butler	32 min
Jun 14, 2:33 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	27 min
Jun 14, 2:44 PM EDT	Areal Flood Advisory	PBZ	Allegheny	111 min
Jun 14, 2:53 PM EDT	Special Weather Statement	PBZ	Butler	37 min
Jun 14, 2:54 PM EDT	Special Weather Statement	PBZ	Washington	36 min
Jun 14, 2:57 PM EDT	Special Weather Statement	PBZ	Allegheny	33 min
Jun 14, 2:59 PM EDT	Areal Flood Advisory	PBZ	Allegheny, Beaver	47 min
Jun 14, 3:01 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	29 min
Jun 14, 3:03 PM EDT	Special Weather Statement	PBZ	Armstrong	27 min
Jun 14, 3:05 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	25 min
Jun 14, 3:10 PM EDT	Special Weather Statement	PBZ	Beaver	35 min
Jun 14, 3:22 PM EDT	Special Weather Statement	PBZ	Armstrong, Indiana	23 min
Jun 14, 3:26 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
Jun 14, 3:29 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	31 min
Jun 14, 3:40 PM EDT	Areal Flood Advisory	PBZ	Allegheny, Westmoreland	91 min
Jun 14, 3:42 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	33 min
Jun 14, 3:44 PM EDT	Areal Flood Advisory	PBZ	Allegheny, Washington	106 min
Jun 14, 3:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	24 min
Jun 14, 4:18 PM EDT	Special Weather Statement	PBZ	Fayette	42 min
Jun 14, 4:25 PM EDT	Special Weather Statement	PBZ	Greene	50 min
Jun 14, 4:47 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	43 min
Jun 14, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	27 min
Jun 14, 5:19 PM EDT	Special Weather Statement	PBZ	Fayette	26 min
Jun 14, 5:41 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	31 min
Jun 14, 5:42 PM EDT	Special Weather Statement	PBZ	Fayette	33 min
Jun 14, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	30 min
Jun 14, 6:02 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene	28 min
Jun 14, 6:27 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	33 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021 Every 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.