Severe Thunderstorm Warning 226, NWS Pittsburgh, PA

308 
WWUS51 KPBZ 111656
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
1256 PM EDT Wed Aug 11 2021

OHC081-PAC073-111706-
/O.CAN.KPBZ.SV.W.0226.000000T0000Z-210811T1715Z/
Jefferson OH-Lawrence PA-
1256 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JEFFERSON AND
SOUTHERN LAWRENCE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4042 8056 4086 7993 4086 7992 4063 7984
      4041 7996 4032 8033
TIME...MOT...LOC 1656Z 295DEG 33KT 4050 7990 

$$

PAC003-007-019-125-WVC029-111715-
/O.CON.KPBZ.SV.W.0226.000000T0000Z-210811T1715Z/
Beaver PA-Washington PA-Butler PA-Allegheny PA-Hancock WV-
1256 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR SOUTHEASTERN BEAVER...NORTHWESTERN WASHINGTON...SOUTHWESTERN
BUTLER...NORTHWESTERN ALLEGHENY AND HANCOCK COUNTIES...

At 1256 PM EDT, a severe thunderstorm was located over Aspinwall, or
near Penn Hills, moving southeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Emergency management.

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

Locations impacted include...
Pittsburgh, Mount Lebanon, Ross Township, McCandless Township,
Cranberry, Moon Township, Weirton, Franklin Park, Aliquippa, Shaler
Township, North Side Pittsburgh, and Hampton Township.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This is a DANGEROUS SITUATION. This storm has produced wind damage 
across Beaver County. SEEK SHELTER NOW inside a sturdy structure 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 4042 8056 4086 7993 4086 7992 4063 7984
      4041 7996 4032 8033
TIME...MOT...LOC 1656Z 295DEG 33KT 4050 7990 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

981 
WWUS51 KPBZ 111708 RRA
SVSPBZ

Severe Weather Statement
National Weather Service Pittsburgh PA
108 PM EDT Wed Aug 11 2021

PAC007-WVC029-111718-
/O.CAN.KPBZ.SV.W.0226.000000T0000Z-210811T1715Z/
Beaver PA-Hancock WV-
108 PM EDT Wed Aug 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BEAVER AND
HANCOCK COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4037 8023 4076 7992 4074 7988 4063 7984
      4041 7996 4035 8019
TIME...MOT...LOC 1708Z 295DEG 33KT 4045 7976 

$$

PAC003-019-125-111715-
/O.CON.KPBZ.SV.W.0226.000000T0000Z-210811T1715Z/
Washington PA-Butler PA-Allegheny PA-
108 PM EDT Wed Aug 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHERN WASHINGTON...SOUTH CENTRAL BUTLER AND NORTHWESTERN
ALLEGHENY COUNTIES...

At 108 PM EDT, a severe thunderstorm was located over Monroeville,
moving southeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Emergency management.

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

Locations impacted include...
Pittsburgh, Mount Lebanon, Ross Township, McCandless Township,
Franklin Park, Shaler Township, North Side Pittsburgh, Hampton
Township, Scott Township, Robinson Township, Dormont, and O'hara
Township.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection 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 4037 8023 4076 7992 4074 7988 4063 7984
      4041 7996 4035 8019
TIME...MOT...LOC 1708Z 295DEG 33KT 4045 7976 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Area Forecast Discussion
National Weather Service Pittsburgh PA
951 AM EDT Wed Aug 11 2021

.SYNOPSIS...
Seasonable warmth, humidity, and periodic showers and thunderstorms
can be expected until cold frontal passage late this week.

&&

.NEAR TERM /THROUGH TONIGHT/...
An easterly propagating line of thunderstorms will arrive in eastern
Ohio within the late morning/early afternoon hours. This line will
be monitored as it interacts with remaining dry air aloft in the OH
Valley, where in spots, DCAPE values exceed 1000 j/kg. Instability is
present, and cold pool dominance is likely, so some storms may carry
damaging wind gusts.

Thunderstorms are generally possible this afternoon and evening as
shortwaves propagate through the Ohio Valley, with above the
climatological norm warmth and plenty of moisture.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY/...
Thunderstorm chances continue into Thursday as embedded shortwaves
advance through the base of an elongated trough center near the
Great Lakes.

Temperature wl also continue to be above average with the support of
warm, moist advection. Thursday is still borderline approaching Heat
Advisory headlines as Heat Index values are currently forecasted to
be in the upper-90s in portions of our region.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
A cold front is anticipated to enter the Ohio River Valley late
Friday/early Saturday. Therefore, thunderstorm chances will persist
ahead along the boundary. The frontal passage will moderate
temperature back to climatological norms for the weekend.

Depending on the position of high pressure, showers may return to
the region starting Monday and carry into Tuesday as warm, moist air
returns from the south.

&&

.AVIATION /14Z WEDNESDAY THROUGH SUNDAY/...
VFR is expected for most terminals through dawn, with the exception
of MVFR/IFR at FKL and DUJ with low lvl moisture in place through the
early morning. Brief restriction is likely when thunderstorms
develop, which is possible this afternoon at all terminals.

.Outlook...
Periodic restrictions in showers/tstms are likely thru Sat with a
series of crossing disturbances.

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
PA...None.
OH...None.
WV...None.

&&

Hazardous Weather Outlook
National Weather Service Pittsburgh PA
645 AM EDT Wed Aug 11 2021

OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-029-
031-073>076-WVZ001>004-012-021-509>514-121045-
Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH-
Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest-
Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong-
Indiana-Washington-Greene-Westmoreland-
Higher Elevations of Westmoreland-Fayette-
Higher Elevations of Fayette-Hancock-Brooke-Ohio-Marshall-Wetzel-
Marion-Monongalia-
Ridges of Eastern Monongalia and Northwestern Preston-Preston-
Eastern Preston-Western Tucker-Eastern Tucker-
645 AM EDT Wed Aug 11 2021

This Hazardous Weather Outlook is for east central Ohio, western
Pennsylvania, and northern West Virginia.

.DAY ONE...Today and tonight.

A Marginal Risk of severe weather is possible today. Damaging wind
gusts are the primary threat.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A Marginal Risk of severe weather is outlooked for Thursday, with
damaging wind being the most prominent threat.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

Special Weather Statement
National Weather Service Pittsburgh PA
1056 AM EDT Wed Aug 11 2021

OHZ039>041-048>050-111600-
Jefferson OH-Tuscarawas OH-Coshocton OH-Harrison OH-Columbiana OH-
Carroll OH-
1056 AM EDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northwestern
Harrison, northwestern Jefferson, Columbiana, northern Coshocton,
Carroll and Tuscarawas Counties through NOON EDT...

At 1056 AM EDT, Doppler radar was tracking a strong thunderstorm over
Sugarcreek, or near Dover, moving southeast at 45 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
New Philadelphia, Dover, Salem, Columbiana, Uhrichsville, East
Palestine, Carrollton, Calcutta, Minerva, Lisbon, Dennison, and
Strasburg.

This includes Interstate 77 in Ohio between mile markers 70 and 95.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4046 8215 4044 8167 4063 8167 4067 8146
      4065 8124 4072 8124 4073 8109 4090 8108
      4090 8090 4093 8089 4093 8082 4090 8082
      4090 8053 4070 8058 4044 8088 4034 8133
      4037 8187 4044 8219
TIME...MOT...LOC 1456Z 311DEG 41KT 4050 8160

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1206 PM EDT WED AUG 11 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1133 AM     TSTM WND DMG     1 NNE NEW GARDEN        40.81N  80.92W
08/11/2021                   COLUMBIANA         OH   EMERGENCY MNGR

            TREES REPORTED DOWN ALONG SR 09 NEAR NEW GARDEN.

&&

EVENT NUMBER PBZ2102093

JD

Special Weather Statement
National Weather Service Pittsburgh PA
1215 PM EDT Wed Aug 11 2021

PAZ007-008-013-014-111700-
Butler PA-Venango PA-Lawrence PA-Mercer PA-
1215 PM EDT Wed Aug 11 2021

...Strong thunderstorms will impact portions of Mercer, western
Venango, eastern Lawrence and northern Butler Counties through 100 PM
EDT...

At 1215 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Meadville to near Ellwood
City. Movement was east at 50 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
New Castle, Butler, Oil City, Grove City, Franklin, Ellwood City,
Homeacre-Lyndora, Sugarcreek, Shanor-Northvue, Meridian, Slippery
Rock, and New Wilmington.

This includes the following highways...
  Interstate 79 in Pennsylvania between mile markers 93 and 137.
  Interstate 80 in Pennsylvania between mile markers 10 and 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4146 7972 4106 7975 4085 7992 4087 8034
      4148 8033 4148 8013 4149 8012 4149 8000
      4150 8000 4150 7998 4151 7998 4151 7996
      4154 7994 4154 7992 4156 7991 4159 7985
      4160 7985 4160 7983 4162 7983
TIME...MOT...LOC 1615Z 258DEG 43KT 4156 8021 4089 8024

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1224 PM EDT WED AUG 11 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1208 PM     TSTM WND DMG     PATTERSON HEIGHTS       40.74N  80.33W
08/11/2021                   BEAVER             PA   EMERGENCY MNGR

            TREES REPORTED DOWN ON 11TH ST.

&&

EVENT NUMBER PBZ2102094

JD