Alert archive / Pennsylvania / Tornado Warnings in 2021

Tornado Warning 9, NWS Pittsburgh, PA

July 29, 2021Fayette County, Westmoreland County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 29, 2021, 1:58 PM EDT for Fayette County, Westmoreland County, Pennsylvania. It was in force for 22 min. 6 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, 1:58 PM EDT (17:58 UTC)
Expired
Jul 29, 2021, 2:20 PM EDT
In force
22 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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 18:01 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, 2:05 PM EDTTSTM WND DMG2 Sse Acme, PAMUTLIPLE TREES DOWN AND STRUCTURAL DAMAGE IN SALTLICK TWP
Jul 29, 2:06 PM EDTTSTM WND DMG2 Wsw Donegal, PAREPORT FROM MPING: HOMES/BUILDINGS COMPLETELY DESTROYED.
Jul 29, 2:08 PM EDTTSTM WND DMG1 N Champion, PAMULTIPLE TREES DOWN
Jul 29, 2:08 PM EDTTSTM WND DMG2 Wsw Donegal, PAREPORT FROM MPING: TREES UPROOTED OR SNAPPED; ROOF BLOWN OFF.
Jul 29, 2:08 PM EDTTSTM WND DMG3 Wsw Donegal, PAREPORT FROM MPING: TREES UPROOTED OR SNAPPED; ROOF BLOWN OFF.
Jul 29, 2:08 PM EDTTORNADO2 Nne White, PADAMAGE EXTENDING DOWN KESSLER SCHOOL ROAD NEAR KESSLER EXTENSION, IN SALT LICK TOWNSHIP IN FAYETTE COUNTY. PA. SINGLE STORY SHED OVERTURNED POWERLINES DOWN, BARN ROOF COMPLETELY TORN OFF, SINGLE STORY GARAGE LEVELED WITH ROOF ROTATED AND MOVED TO NEIGHBORS PRO

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, 6.0 hours before the alert went out and 76 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.

037 
WFUS51 KPBZ 291758
TORPBZ
PAC051-129-291830-
/O.NEW.KPBZ.TO.W.0009.210729T1758Z-210729T1830Z/

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

The National Weather Service in Pittsburgh has issued a

* Tornado Warning for...
  South central Westmoreland County in southwestern Pennsylvania...
  Northeastern Fayette County in southwestern Pennsylvania...

* Until 230 PM EDT.
    
* At 158 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles southeast of Mount Pleasant, or 10 miles
  northeast of Connellsville, 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 dangerous storm will be near...
  Seven Springs around 210 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Normalville, Acme, Jones Mills, Champion, Indian Head, Donegal and
Seven Springs.

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 4010 7922 4009 7925 4008 7927 4006 7927
      4002 7931 3993 7938 4006 7956 4021 7943
      4011 7922
TIME...MOT...LOC 1758Z 306DEG 29KT 4009 7943 

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

$$

CL
3 follow-up statements
459 
WWUS51 KPBZ 291802
SVSPBZ

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

PAC051-129-291830-
/O.CON.KPBZ.TO.W.0009.000000T0000Z-210729T1830Z/
Westmoreland PA-Fayette PA-
202 PM EDT Thu Jul 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR
SOUTHEASTERN WESTMORELAND AND NORTHEASTERN FAYETTE COUNTIES...
    
At 202 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles northwest of Seven Springs, or 10 miles northeast
of Connellsville, 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 dangerous storm will be near...
  Seven Springs around 215 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Champion, Indian Head, Jones Mills, Donegal, Acme and Seven Springs.

This includes Pennsylvania Turnpike between mile markers 88 and 95,
and between
  mile markers 97 and 100.
 
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 4008 7927 4006 7927 4002 7931 3996 7936
      4009 7945 4015 7940 4011 7922 4010 7922
      4009 7925
TIME...MOT...LOC 1802Z 306DEG 29KT 4008 7942 

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

$$
112 
WWUS51 KPBZ 291810
SVSPBZ

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

PAC051-129-291830-
/O.CON.KPBZ.TO.W.0009.000000T0000Z-210729T1830Z/
Westmoreland PA-Fayette PA-
210 PM EDT Thu Jul 29 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EDT FOR
SOUTHEASTERN WESTMORELAND AND NORTHEASTERN FAYETTE COUNTIES...
    
At 209 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Seven Springs, or 12 miles east of Connellsville,
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
southeastern Westmoreland and northeastern Fayette Counties,
including the following locations... Champion, Jones Mills, Donegal,
Seven Springs and Acme.

This includes Pennsylvania Turnpike between mile markers 89 and 94,
and between
  mile markers 99 and 100.
 
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 4008 7927 4006 7927 4000 7933 4008 7943
      4013 7940 4011 7922 4010 7922 4009 7925
TIME...MOT...LOC 1809Z 306DEG 29KT 4004 7935 

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

$$
576 
WWUS51 KPBZ 291820
SVSPBZ

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

PAC051-129-291829-
/O.CAN.KPBZ.TO.W.0009.000000T0000Z-210729T1830Z/
Westmoreland PA-Fayette PA-
220 PM EDT Thu Jul 29 2021

...THE TORNADO WARNING FOR SOUTHEASTERN WESTMORELAND AND NORTHEASTERN
FAYETTE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4008 7927 4006 7927 4000 7933 4008 7943
      4013 7940 4011 7922 4010 7922 4009 7925
TIME...MOT...LOC 1819Z 306DEG 29KT 3996 7920 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 8:47 AM EDTSpecial Weather StatementPBZVenango28 min
Jul 29, 12:51 PM EDTSpecial Weather StatementPBZVenango24 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, 5:24 PM EDTSevere Thunderstorm WarningPBZGreene, Washington36 min
Jul 29, 5:48 PM EDTTornado WarningPBZGreene, Washington27 min
Jul 29, 5:59 PM EDTTornado Warning Tornado observedPBZWashington31 min
Jul 29, 6:08 PM EDTSevere Thunderstorm WarningPBZFayette, Greene52 min
Jul 29, 6:14 PM EDTSevere Thunderstorm WarningPBZGreene32 min
Jul 29, 6:32 PM EDTSevere Thunderstorm WarningPBZFayette, Greene28 min
Jul 29, 6:35 PM EDTSpecial Weather StatementPBZWashington25 min
Jul 29, 6:55 PM EDTSpecial Weather StatementPBZWashington35 min
Jul 29, 7:00 PM EDTSevere Thunderstorm WarningPBZGreene, Washington45 min
Jul 29, 7:34 PM EDTSpecial Weather StatementPBZGreene26 min

Nearby

Tornado 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.