Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 122, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 21, 2011, 10:29 PM EDT for Beaver County, Lawrence County, Washington County, Pennsylvania; Columbiana County, Jefferson County, Ohio; Hancock County, West Virginia. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 21, 2011, 10:29 PM EDT (02:29 UTC)
- Expired
- Jun 21, 2011, 11:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Storm-based polygon
Counties Columbiana County, OH, Jefferson County, OH, Beaver County, PA, Lawrence County, PA, Washington County, PA, Hancock County, WV
The radar
The Pittsburgh radar (KPBZ), 25 km from the middle of the area, began a volume at 02:31 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.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 2.5 hours before the alert went out and 40 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
- 1743 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1203 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 9:57 PM EDT, 32 minutes earlier.
Area forecast discussion, Jun 21, 9:57 PM EDT, 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 957 PM EDT TUE JUN 21 2011 .SYNOPSIS... A STALLED WARM FRONT WILL CONTINUE TO BRING WARM AND HUMID CONDITIONS THROUGH WEDNESDAY. THUNDERSTORMS WILL BE SCATTERED TONIGHT...BECOMING MORE NUMEROUS WEDNESDAY AND THURSDAY. A COLD FRONT WILL LOWER DAYTIME TEMPERATURES THURSDAY...BUT MAINTAIN A CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH FRIDAY. && .NEAR TERM /THROUGH WEDNESDAY/... ADJUSTED TEMPS AND SKY COVER...ADJUSTED POP USING THE HRRR TO ACCOUNT FOR SHOWERS AND THUNDERSTORMS MOVING THROUGH OH COUNTIES. COVERAGE OF PRECIP WILL DECREASE AFTER MIDNIGHT...DECREASED POP TO 30 PERCENT AFTER MIDNIGHT FOR REST OF NIGHT. HUMID CONDITIONS WILL CONTINUE WITH LOW TEMPERATURES IN THE MID/UPPER 60S. MODELS IN AGREEMENT WITH A STRONGER SHORTWAVE CROSSING THE AREA TOMORROW. AS A SURFACE COLD FRONT MAKES ITS APPROACH...AND UPPER LEVEL LOW PRESSURE NUDGES CLOSER TO THE AREA... POP INCREASES TO LIKELY BY WEDNESDAY AFTN. WITH DEEP LAYER SHEAR PROGGED TO INCREASE...CHANCES OF STRONG/LOCALLY SEVERE TSTMS WILL INCREASE DURING THE AFTERNOON. WARM AND HUMID CONDITIONS WILL CONTINUE. && .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/... THE COLD FRONT IS FORECAST TO ENTER THE REGION WEDNESDAY NIGHT EXITING THE AREA BY THURSDAY. WILL USE LIKELY POPS WITH THE FRONTAL CROSSING...WITH POPS DIMINISHING POST FRONTAL BY LATE WEDNESDAY NIGHT. UPPER LEVEL LOW PRESSURE LINGERS BEHIND THE SURFACE FRONT FOR THURSDAY/FRIDAY BRINGING CONTINUED CHANCES OD SHOWERS AND THUNDERSTORMS. DAYTIME TEMPERATURES WILL COOL TO SLIGHTLY BELOW NORMAL VALUES...WITH A GRADUAL DECREASE IN HUMIDITY LEVELS. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... SLOW MOVING LOW PRESSURE SYSTEM WILL LIFT NORTHEAST INTO SOUTHERN QUEBEC SATURDAY. THIS SYSTEM WILL PUSH A SURFACE FRONT THROUGH THE REGION EARLY IN THE WEEKEND. SCATTERED SHOWERS CAN BE EXPECTED THROUGH SATURDAY NIGHT. SURFACE HIGH PRESSURE WILL BUILD INTO THE UPPER OHIO REGION SUNDAY AND SHOULD REMAIN OVER THE REGION INTO EARLY NEXT WEEK. MAINLY DRY CONDITIONS ARE FORECAST. WENT CLOSE TO HPC GUIDANCE WITH TEMPERATURES A FEW DEGREES BELOW NORMAL THROUGH MONDAY AND NEAR NORMAL TUESDAY. && .AVIATION /02Z WEDNESDAY THROUGH SUNDAY/... AREA OF SHOWERS AND STORMS MOVING NORTHEAST UP OHIO RIVER VALLEY SHOULD SLOWLY DECREASE AS THE EVENING WEARS ON. ADDED TEMPS FOR MVFR THUNDERSTORMS FROM ZANESVILLE 02-04Z UP TO PIT/AGC AND BVI BY 03-05Z. NOT CONFIDENT STORMS WILL BE ABLE TO HOLD TOGETHER BEYOND THAT POINT AND WERE NOT ADDED TO REMAINDER OF TERMINALS. HAVE MODERATE CONFIDENCE THAT AREAS OF MVFR FOG AND STRATUS WILL FORM AGAIN AFTER 09Z WEDNESDAY...WITH IFR RESTRICTIONS POSSIBLE AT KFKL AND KDUJ. COVERAGE OF SHOWERS AND THUNDERSTORMS IS FORECAST TO INCREASE BY 15Z WEDNESDAY AS A SHORTWAVE TROUGH MOVES ACROSS THE REGION AND PROVIDES EXTRA LIFT. OUTLOOK FOR THURSDAY THROUGH SUNDAY... AREAS OF EARLY MORNING IFR/MVFR FOG FOLLOWED BY SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WITH ADDITIONAL RESTRICTIONS CAN BE EXPECTED THURSDAY THROUGH SATURDAY. HIGH PRESSURE WILL BUILD INTO THE UPPER OHIO VALLEY WITH GENERALLY VFR WEATHER SUNDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
Hazardous weather outlook, Jun 21, 2:45 PM EDT, 7 hours 44 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 245 PM EDT TUE JUN 21 2011 OHZ039>041-048>050-057>059-068-069-WVZ001>004-012-021-221845- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-HANCOCK-BROOKE-OHIO-MARSHALL- WETZEL-MARION- 245 PM EDT TUE JUN 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT. DAMAGING WIND WILL BE MORE OF A THREAT THAN LARGE HAIL. FLOODING WILL ALSO BE A CONCERN, AS THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY RAINFALL. FLOODING MAY OCCUR IN LOCATIONS THAT GET MORE THAN 1.5 INCHES IN LESS THAN 3 HOURS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WEDNESDAY AND THURSDAY. DAMAGING WIND WILL CONTINUE TO BE MORE OF A THREAT THAN LARGE HAIL. FLOODING WILL CONTINUE TO ALSO BE A CONCERN, AS THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY RAINFALL. FLOODING MAY OCCUR IN LOCATIONS THAT GET MORE THAN 1.5 INCHES IN LESS THAN 3 HOURS, PERHAPS LESS NEEDED IF HIT BY PREVIOUS HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MDZ001-PAZ007>009-013>016-020>023-029-031-073>076-WVZ022-023-041- 221845- GARRETT-MERCER-VENANGO-FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA- BEAVER-ALLEGHENY-ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND- WESTMORELAND RIDGES-FAYETTE-FAYETTE RIDGES-MONONGALIA-PRESTON-TUCKER- 245 PM EDT TUE JUN 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN WEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS HAVE THE POTENTIAL OF PRODUCING LOCALLY HEAVY RAINFALL THIS AFTERNOON AND TONIGHT. FLOODING MAY OCCUR IN LOCATIONS THAT GET MORE THAN 1.5 INCHES IN LESS THAN 3 HOURS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THURSDAY. DAMAGING WIND WILL BE MORE OF A THREAT THAN LARGE HAIL. FLOODING WILL CONTINUE TO ALSO BE A CONCERN, AS THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY RAINFALL. FLOODING MAY OCCUR IN LOCATIONS THAT GET MORE THAN 1.5 INCHES IN LESS THAN 3 HOURS, PERHAPS LESS NEEDED IF HIT BY PREVIOUS HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
In the hours before
Special weather statement, Jun 21, 8:55 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
855 PM EDT TUE JUN 21 2011
PAZ007-220130-
MERCER PA-
855 PM EDT TUE JUN 21 2011
...THUNDERSTORMS...
THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTY...
MERCER...
AT 850 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH
INDICATED STRONG THUNDERSTORMS WITH HALF INCH HAIL 4 MILES SOUTH OF
GREENVILLE...MOVING NORTHEAST AT 20 MPH.
SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE...
GREENVILLE...
KEEP AN EYE TO THE SKY AND MOVE TO A SAFE PLACE IF THUNDERSTORMS
APPROACH.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
&&
LAT...LON 4149 8041 4148 8017 4148 8016 4125 8034
4132 8053 4139 8053 4149 8047 4150 8043Special weather statement, Jun 21, 9:04 PM EDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
904 PM EDT TUE JUN 21 2011
PAZ007-008-014-220145-
BUTLER PA-MERCER PA-VENANGO PA-
904 PM EDT TUE JUN 21 2011
...THUNDERSTORMS...
THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTIES...
BUTLER...VENANGO AND MERCER...
AT 859 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH
INDICATED STRONG THUNDERSTORMS WITH SMALL HAIL 4 MILES NORTH OF
GROVE CITY...MOVING NORTHEAST AT 25 MPH.
SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE...
MERCER... GROVE CITY... STONEBORO...
MAURICE K GODDARD STATE PARK... POLK...
SUGARCREEK... FRANKLIN... COOPERSTOWN...
KEEP AN EYE TO THE SKY AND MOVE TO A SAFE PLACE IF THUNDERSTORMS
APPROACH.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INTENSE LIGHTNING IS REPORTED WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.
&&
LAT...LON 4149 7973 4112 8004 4120 8025 4149 8008
4149 8001 4150 8001 4155 7995 4156 7993
4156 7992Special weather statement, Jun 21, 9:45 PM EDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
945 PM EDT TUE JUN 21 2011
OHZ039>041-049-050-059-PAZ020-021-029-031-073-075-076-WVZ001>004-021-
022-220215-
ALLEGHENY PA-BEAVER PA-BELMONT OH-BROOKE WV-CARROLL OH-COLUMBIANA OH-
FAYETTE PA-FAYETTE RIDGES PA-GREENE PA-HANCOCK WV-HARRISON OH-
JEFFERSON OH-MARION WV-MARSHALL WV-MONONGALIA WV-OHIO WV-
TUSCARAWAS OH-WASHINGTON PA-WESTMORELAND PA-
945 PM EDT TUE JUN 21 2011
...STRONG THUNDERSTORMS WILL AFFECT BROOKE...CARROLL...COLUMBIANA...
EXTREME SOUTHWESTERN WESTMORELAND...GREENE...HANCOCK...JEFFERSON...
MONONGALIA...NORTHEASTERN BELMONT...NORTHEASTERN HARRISON...
NORTHEASTERN MARION...NORTHEASTERN MARSHALL...NORTHEASTERN
TUSCARAWAS...OHIO...SOUTHWESTERN ALLEGHENY...SOUTHWESTERN BEAVER...
WASHINGTON AND WESTERN FAYETTE COUNTIES...
AT 940 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 5 MILES
NORTH OF BOLIVAR TO 4 MILES SOUTHEAST OF WINFIELD...MOVING NORTHEAST
AT 30 MPH.
WIND GUSTS TO 40 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THESE
STORMS.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
WHEELING... WARWOOD... WANA...
TRIADELPHIA... MCCURDYVILLE... DAYBROOK...
BETHLEHEM... RYERSON STATION... SHERRODSVILLE...
SCIO... MINERAL CITY... MARTINS FERRY...
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4066 8147 4067 8144 4065 8142 4065 8124
4072 8123 4073 8109 4091 8108 4090 8091
4093 8089 4093 8082 4090 8080 4090 8061
3990 7963 3947 8001Special weather statement, Jun 21, 9:47 PM EDT, 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
947 PM EDT TUE JUN 21 2011
OHZ040-041-049-050-059-PAZ020-021-029-031-075-WVZ001>004-021-022-
220230-
ALLEGHENY PA-BEAVER PA-BELMONT OH-BROOKE WV-CARROLL OH-COLUMBIANA
OH-FAYETTE PA-GREENE PA-HANCOCK WV-HARRISON OH-JEFFERSON OH-MARION
WV-MARSHALL WV-MONONGALIA WV-OHIO WV-WASHINGTON PA-
947 PM EDT TUE JUN 21 2011
...THUNDERSTORMS...
THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTIES...
COLUMBIANA...BELMONT...HARRISON...JEFFERSON...CARROLL...FAYETTE...
WASHINGTON...ALLEGHENY...BEAVER...GREENE...MARION...MONONGALIA...
MARSHALL...OHIO...BROOKE AND HANCOCK...
AT 945 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH
INDICATED A LINE OF STRONG THUNDERSTORMS WITH SMALL HAIL ALONG A
LINE EXTENDING FROM 4 MILES NORTHWEST OF CARROLLTON TO 4 MILES NORTH
OF BLACKSVILLE...MOVING NORTHEAST AT 30 MPH.
SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE...
WINDSOR HEIGHTS... WARWOOD... VALLEY GROVE...
TRIADELPHIA... EVERETTVILLE... DAYBROOK...
DALLAS... CLEARVIEW... CASSVILLE...
BLACKSVILLE... BUZZ... YORKVILLE...
KEEP AN EYE TO THE SKY AND MOVE TO A SAFE PLACE IF THUNDERSTORMS
APPROACH.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772.
LAT...LON 4063 8128 4073 8114 4073 8109 4077 8109
4094 8085 4093 8082 4090 8080 4090 8068
3991 7967 3947 8001Special weather statement, Jun 21, 9:47 PM EDT, 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
947 PM EDT TUE JUN 21 2011
PAZ007-008-220215-
MERCER PA-VENANGO PA-
947 PM EDT TUE JUN 21 2011
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MERCER AND WESTERN
VENANGO COUNTIES...
AT 945 PM EDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES WEST OF
POLK...MOVING NORTH AT 25 MPH.
WIND GUSTS TO 40 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THIS
STORM.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
STONEBORO... POLK...
MAURICE K GODDARD STATE PARK... FRANKLIN...
SUGARCREEK... COOPERSTOWN...
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4156 7968 4122 7990 4132 8016 4148 8014
4149 8013 4149 8001 4150 8001 4156 7992
4159 7990 4160 7986 4162 7984Special weather statement, Jun 21, 9:53 PM EDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
953 PM EDT TUE JUN 21 2011
MDZ001-PAZ075-076-WVZ021>023-041-220300-
FAYETTE PA-FAYETTE RIDGES PA-GARRETT MD-MARION WV-MONONGALIA WV-
PRESTON WV-TUCKER WV-
953 PM EDT TUE JUN 21 2011
...STRONG THUNDERSTORMS WILL AFFECT EASTERN MONONGALIA...EXTREME EAST
CENTRAL MARION...GARRETT...PRESTON...SOUTHEASTERN FAYETTE AND TUCKER
COUNTIES...
AT 950 PM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 5 MILES
SOUTHWEST OF BROWNS CHAPEL TO 2 MILES SOUTHEAST OF LANEVILLE...MOVING
EAST AT 25 MPH.
WIND GUSTS TO 40 MPH AND HAIL UP TO DIME SIZE ARE POSSIBLE WITH THESE
STORMS.
SOME LOCATIONS THAT WILL BE IMPACTED INCLUDE...
LANEVILLE... HANNAHSVILLE... FELLOWSVILLE...
CANAAN VALLEY STATE PARK... NEWBURG...
BROWNS CHAPEL... DELLSLOW... BLACKWATER FALLS...
GLADESVILLE... THOMAS... TUNNELTON...
MASONTOWN...
PLEASE REPORT SIGNIFICANT WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 3897 7948 3937 7992 3944 7991 3943 7999
3948 8004 3988 7960 3982 7935 3978 7939
3972 7939 3973 7902 3971 7893 3947 7906
3929 7930 3929 7935 3920 7947 3919 7947
3920 7929 3910 7934 3906 7929 3896 7936The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 8:55 PM EDT | Special Weather Statement | PBZ | Mercer | 35 min |
| Jun 21, 9:04 PM EDT | Special Weather Statement | PBZ | Venango | 41 min |
| Jun 21, 9:45 PM EDT | Special Weather Statement | PBZ | Greene, Washington | 30 min |
| Jun 21, 9:47 PM EDT | Special Weather Statement | PBZ | Venango | 28 min |
| Jun 21, 11:13 PM EDT | Severe Thunderstorm Warning | PBZ | Lawrence, Mercer | 47 min |
| Jun 21, 11:28 PM EDT | Special Weather Statement | PBZ | Lawrence | 62 min |
| Jun 22, 12:00 AM EDT | Special Weather Statement | PBZ | Venango | 45 min |
| Jun 22, 12:34 AM EDT | Special Weather Statement | PBZ | Clarion, Forest, Jefferson | 41 min |
| Jun 21, 8:03 PM EDT | Special Weather Statement | PBZ | Guernsey, Monroe, Noble | 57 min |
| Jun 21, 8:43 PM EDT | Special Weather Statement | PBZ | Belmont, Coshocton, Guernsey, Harrison, Monroe, Tuscarawas | 62 min |
| Jun 21, 9:24 PM EDT | Severe Thunderstorm Warning | PBZ | Tuscarawas | 21 min |
| Jun 21, 9:53 PM EDT | Special Weather Statement | PBZ | Preston, Tucker | 67 min |
| Jun 21, 10:50 PM EDT | Areal Flood Advisory | PBZ | Tucker | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2011Severe Thunderstorm Warnings in Ohio, 2011Severe Thunderstorm Warnings in West Virginia, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.