Isolated severe thunderstorms developed near a weak boundary over Southeast Ohio and Western Pennsylvania.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PBZ wrote it up.
Isolated severe thunderstorms developed near a weak boundary over Southeast Ohio and Western Pennsylvania.
The local office's own words before the first event, 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 the first event at Aug 25, 5:28 PM EST, 2 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 628 PM EDT SAT AUG 25 2007 .SYNOPSIS... A COLD FRONT WILL PUSH ACROSS THE UPPER OHIO VALLEY REGION TONIGHT. SOME STRONG THUNDERSTORMS ARE EXPECTED AHEAD OF AND ALONG THE FRONT. HIGH PRESSURE WILL USHER IN DRIER AIR ON SUNDAY. THE NEXT COLD FRONT WILL BRING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ON WEDNESDAY. && .NEAR TERM /THROUGH SUNDAY/... THUNDERSTORMS AREA MOVING INTO THE SOUTHEAST OHIO COUNTIES AND FORECAST HAS BEEN UPDATED FOR A SEVERE THUNDERSTORM WATCH UNTIL 11 PM FOR MOST OF THE CWA. HAVE REDUCED THE POPS FOR OVERNIGHT AS COVERAGE OF THE SHOWERS AND THUNDERSTORMS IS MORE SCATTERED THAN NUMEROUS. FOR SUNDAY...THE FRONT SLOWS DOWN A BIT AS IT MOVES EAST OF THE MTNS...WITH BOTH NAM/GFS SHOWING SOME WEAK FORCING PERSISTING ALONG THE FAR SE RIDGES. THUS...WILL USE LOW CHANCE POPS FOR PRESTON/TUCKER/GARRETT COUNTIES SUNDAY...WITH ALL OTHER AREAS DRY AS HIGH PRESSURE BUILDS IN. NOTICEABLY MORE COMFORTABLE CONDITIONS WILL PREVAIL...WITH HIGH TEMPERATURES IN THE UPPER 70S TO LOWER 80S AND LOWER HUMIDITY LEVELS. && .SHORT TERM /SUNDAY NIGHT THROUGH MONDAY/... SURFACE HIGH PRESSURE CENTERED OVER THE EASTERN GREAT LAKES SUNDAY NIGHT WILL SLIDE EASTWARD OFF THE NEW ENGLAND COAST BY TUESDAY. UPPER RIDGE WILL MOVE EAST FROM THE SOUTHERN PLAINS INTO THE LOWER MS VALLEY BY LATE TUESDAY. TEMPERATURES WILL CLIMB BACK ABOVE NORMAL DURING THE FIRST PART OF THE WEEK. && .LONG TERM /MONDAY NIGHT THROUGH SATURDAY/... UPPER TROUGH MOVING ACROSS SOUTHERN CANADA WILL PUSH ASSOCIATED COLD FRONT THOUGH THE UPPER OHIO VALLEY WEDNESDAY AND WEDNESDAY NIGHT WITH SURFACE WAVE RIDING ALONG THE FRONT. WILL MENTION CHANCE POPS WEDNESDAY INTO THURSDAY. SURFACE HIGH BEHIND SYSTEM WILL BRING DRIER AIR BACK INTO THE REGION FOR FRIDAY AND SATURDAY AND TEMPERATURES SHOULD DROP TO A FEW DEGREES BELOW THE NORM. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... SCATTERED MVFR WITH ISOLATED IFR CONDITIONS CAN BE EXPECTED THIS EVENING WITH TSTMS ALONG/AHEAD OF THE COLD FRONT. A FEW TSTMS COULD PRODUCE WIND GUSTS TO 35KT. POST-FRONT...MVFR CONDITIONS WILL DEVELOP IN FOG OVERNIGHT. VFR CONDITIONS WILL WORK IN FOR ALL AREAS BY LATE SUNDAY MORNING AS HIGH PRESSURE BUILDS IN. OTHER THAN FOR PATCHES OF MVFR IN LIGHT FOG AROUND SUNRISE EARLY IN THE WEEK...VFR WILL PREVAIL THROUGH TUESDAY. THE NEXT FRONTAL SYSTEM WILL AFFECT THE AREA FOR MIDWEEK WITH AREAS OF MVFR CONDITIONS POSSIBLE. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 301 AM EDT SAT AUG 25 2007 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-260715- GARRETT-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-WESTMORELAND-GREENE-FAYETTE-HANCOCK- BROOKE-OHIO-MARSHALL-WETZEL-MARION-MONONGALIA-PRESTON-TUCKER- 301 AM EDT SAT AUG 25 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON AND THIS EVEING WITH AN APPROACHING COLD FRONT. THERE IS A SLIGHT RISK THAT THE STORMS COULD REACH SEVERE LEVELS WITH THE PRIMARY THREAT BEING FROM DAMAGING WIND GUSTS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATER THIS AFTERNOON AND EARLY THIS EVENING. 15
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 711 PM EDT SAT AUG 25 2007 WVZ004-012-260015- MARSHALL WV-WETZEL WV- 711 PM EDT SAT AUG 25 2007 ...LINE OF STRONG THUNDERSTORMS... A LINE OF STRONG THUNDERSTORMS WILL MOVE THROUGH WETZEL AND SOUTHERN MARSHALL COUNTIES... AT 709 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS 7 MILES SOUTHWEST OF PROCTOR...OR ABOUT 3 MILES EAST OF BENWOOD...MOVING EAST AT 30 MPH. THESE STORMS WILL CONTAIN HAIL...HEAVY DOWNPOURS...FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND WIND GUSTS IN EXCESS OF 40 MPH. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... ADALINE...ALLISTER...ANDY...BANNEN AND BARKER 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 730 PM EDT SAT AUG 25 2007 OHZ049-260000- HARRISON OH- 730 PM EDT SAT AUG 25 2007 ...STRONG THUNDERSTORMS... STRONG THUNDERSTORMS DEVELOPING RAPIDLY OVER SOUTHERN HARRISON COUNTY... AT 728 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS OVER NEW ATHENS...MOVING EAST AT 20 MPH. THIS STORM IS INTENSIFY RAPIDLY AND WILL LIKELY PRODUCE HAIL...HEAVY RAIN AND FREQUENT CLOUD TO GROUND LIGHTNING STRIKES. WIND GUSTS IN EXCESS OF 40 MPH ARE POSSIBLE AS WELL. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... CADIZ...NEW ATHENS...BELKNAP...HURFORD AND BELLEVE 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 746 PM EDT SAT AUG 25 2007 PAZ031-260045- GREENE PA- 746 PM EDT SAT AUG 25 2007 ...THUNDERSTORMS... THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTY... GREENE... AT 743 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS 5 MILES WEST OF RYERSON STATION...OR ABOUT 2 MILES WEST OF ROCKLICK...MOVING EAST AT 25 MPH. SOME OF THESE STORMS WILL BE ACCOMPANIED BY DANGEROUS LIGHTNING... WIND GUSTS TO 45 MPH...SMALL HAIL AND HEAVY DOWNPOURS THAT MAY CAUSE PONDING OF WATER ON ROADS. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... BOBTOWN...BUZZ...FAIRCHANCE...ROGERSVILLE AND RYERSON STATION 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 750 PM EDT SAT AUG 25 2007 WVZ021-022-260045- MARION WV-MONONGALIA WV- 750 PM EDT SAT AUG 25 2007 ...STRONG THUNDERSTORMS... LINE OF STRONG THUNDERSTORMS TO MOVE THROUGH MARION AND MONONGALIA COUNTIES... AT 747 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS 6 MILES NORTHWEST OF CURTISVILLE...OR ABOUT 3 MILES SOUTHWEST OF EARNSHAW...MOVING EAST AT 30 MPH. THESE STORMS WILL PRODUCE HAIL...HEAVY RAIN AND WIND GUSTS IN EXCESS OF 40 MPH. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... FORT GRAND...ARNETTSVILLE...BARRACKVILLE...BASNETTVILLE AND BAXTER 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. 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 759 PM EDT SAT AUG 25 2007 PAZ014-021-022-260100- ALLEGHENY PA-ARMSTRONG PA-BUTLER PA- 759 PM EDT SAT AUG 25 2007 ...THUNDERSTORMS... THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTIES... ARMSTRONG...ALLEGHENY AND BUTLER... AT 757 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS 4 MILES EAST OF MARS...MOVING EAST AT 30 MPH. SOME OF THESE STORMS WILL BE ACCOMPANIED BY DANGEROUS LIGHTING... WIND GUSTS TO 45 MPH...SMALL HAIL...AND HEAVY DOWNPOURS THAT MAY CAUSE PONDING OF WATER ON ROADS. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... GLADE MILLS...COOPERSTOWN...CROOKED CREEK LAKE PARK...STRINGTOWN AND LENAPE HEIGHTS 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 802 PM EDT SAT AUG 25 2007 PAZ029-260100- WASHINGTON PA- 802 PM EDT SAT AUG 25 2007 ...THUNDERSTORMS... THUNDERSTORMS TO MOVE THROUGH THE FOLLOWING COUNTY... WASHINGTON... AT 757 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR IN PITTSBURGH INDICATED STRONG THUNDERSTORMS 10 MILES SOUTH OF CLAYSVILLE...OR ABOUT 6 MILES SOUTHEAST OF DALLAS...MOVING EAST AT 30 MPH. SOME THESE STORMS WILL BRING DANGEROUS LIGHTNING...WIND GUSTS TO 45 MPH...SMALL HAIL AND HEAVY DOWNPOURS THAT MAY CAUSE PONDING OF WATER ON ROADS. SOME LOCATIONS THAT WILL BE IMPACTED BY THESE STORMS INCLUDE... BENTLEYVILLE...CLAYSVILLE...MARIANNA...AMITY AND BAKER STATION 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT SATURDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.
The Pittsburgh radar (KPBZ), 68 km away, was scanning. The volume nearest the first event began at 00:26 UTC.
2 thunderstorm wind. Local standard time, as filed.
Emergency management reported trees down in the Mather area.
Emergency management reported trees down along Muddy Creek Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2007Every state in 2007This day in weather historyWarnings in Pennsylvania, August 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 53987, 53992.