Numerous severe thunderstorms formed ahead of a cold front moving Southeast across the Ohio Valley.
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.
Numerous severe thunderstorms formed ahead of a cold front moving Southeast across the Ohio Valley.
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 Jun 13, 9:53 AM EST, 3 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 1053 AM EDT WED JUN 13 2007 .SYNOPSIS... HIGH PRESSURE SYSTEM CENTERED OVER THE CENTRAL GREAT LAKES REGION WILL DOMINATE OUR WEATHER THROUGH LATE WEEK. INFLUENCE FROM PERSISTENT LOW PRESSURE SYSTEM OFF JERSEY SHORE WILL KEEP SCATTERED THUNDERSTORMS MAINLY OVER WESTERN PENNSYLVANIA, NORTHERN WEST VIRGINIA AND WESTERN MARYLAND. && .NEAR TERM /THROUGH TONIGHT/... IMPULSES ROTATING AROUND CLOSED LOW OFF THE MID ATLANTIC COAST WILL KICK OFF SOME CLUSTERS OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. THUNDERSTORM COVERAGE SHOULD BE MORE NUMEROUS OVER THE RIDGES THROUGH THIS EVENING TAPERING TO ISOLATED ACROSS EASTERN OHIO. NEAR TERM TEMPERATURE FORECAST LOOKS FINE. && .SHORT TERM /THURSDAY THROUGH FRIDAY/... BY THURSDAY...UPPER TROUGH BEGINS TO MOVE TOWARDS THE NOVA SCOTIA REGION. GREAT LAKES HIGH PRESSURE SYSTEM ELONGATES EASTWARD AND CONTROLS WEATHER ACROSS THE REGION THROUGH FRIDAY. CONTINUED DIURNAL THUNDERSTORM CHANCES CANNOT BE RULED OUT IN EASTERN ZONES AND RIDGE COUNTIES THROUGH LATE THURSDAY AS H5 COLD POOL REMAINS IN PLACE AND MODERATE SOLAR INSULATION ALLOWS FOR SUFFICIENT INSTABILITY. && .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... UPPER LEVEL LOW CONTINUING OFF OF NE U.S. COAST ON FRIDAY. UPPER LOW EVENTUALLY OPENS AND LIFTS NE SATURDAY NIGHT. WEAK UPPER TROUGH IN NORTHWEST FLOW PUSHES EAST AND CONTINUES TO FLATTEN OUT. MEANWHILE, THIS UPPER FEATURE SUPPORTS VERY WEAK SURFACE FRONT FOR OVERNIGHT SATURDAY INTO EARLY SUNDAY. CURRENTLY, LOOKS VERY DRY BUT HAVE MENTIONED 20 POP IN GRIDS (NOT IN ZFP). THEN, H5 HEIGHTS ON THE RISE AS RIDGE BUILDS EAST THROUGH MONDAY. MIDWEST TROUGH SHARPENS LATER MONDAY INTO TUESDAY. THIS NEXT TROUGH BEST CHANCE OF PRECIPITATION AFFECTING REGION NEXT 7 DAYS. IT WILL SUPPORT COLD FRONT WHICH PROGRESSES EAST THROUGH LATE TUESDAY. INCREASE IN DEWPOINTS, CLOUD COVER AND CHANCE SHOWERS AND THUNDER IN FORECAST BY DAY 7 (TUESDAY) WITH APPROACH OF THIS SYSTEM. && .AVIATION /15Z WEDNESDAY THROUGH SUNDAY/... EXPECT SCATTERED TO BROKEN CUMULUS AROUND 4000 FEET THROUGH THIS EVENING WITH CONDITIONS LOWERING TO MVFR IN SCATTERED THUNDERSTORMS. POTENTIAL EXISTS FOR HAIL AND WIND GUSTS OVER 40KT IN STRONGER CELLS. PATCHY FOG WILL LOWER CONDITIONS TO IFR AGAIN EARLY THURSDAY MORNING. MAINLY VFR CONDITIONS WILL PREVAIL WITH WIDELY SCATTERED MVFR CONDITIONS IN THUNDERSTORMS THURSDAY AFTERNOON AND EVENING. FOR FRIDAY THROUGH THE WEEKEND EXPECT GENERALLY VFR CONDITIONS WITH A WEAK COLD FRONT BRINGING ISOLATED THUNDERSTORMS AND SOME MVFR/IFR CONDITIONS POSSIBLE SATURDAY NIGHT AND SUNDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 1145 AM EDT WED JUN 13 2007 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029>032-WVZ001>004-012-021>023-041-141545- 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- 1145 AM EDT WED JUN 13 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...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE WEATHER THIS AFTERNOON AND EVENING. A LOW PRESSURE SYSTEM LOCATED OVER THE EAST COAST WILL PUMP LOW LEVEL MOISTURE INTO THE AREA. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE REGION THIS AFTERNOON ESPECIALLY OVER THE RIDGES. SOME STORMS COULD BECOME SEVERE WITH HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 136 PM EDT WED JUN 13 2007 PAZ007>009-013>016-022-023-131830- ARMSTRONG PA-BUTLER PA-CLARION PA-FOREST PA-INDIANA PA-JEFFERSON PA-LAWRENCE PA-MERCER PA-VENANGO PA- 136 PM EDT WED JUN 13 2007 ...THUNDERSTORMS... THUNDERSTORMS TO MOVE INTO PARTS OF THE FOLLOWING COUNTIES...ARMSTRONG...INDIANA...BUTLER...JEFFERSON...VENANGO... FOREST...CLARION...MERCER AND LAWRENCE COUNTIES BY 330 PM. STRONG THUNDERSTORMS WERE DEVELOPING ACROSS NORTHERN PENNSYLVANIA. THEY WERE MOVING TO THE SOUTHWEST ABOUT 25 MPH. ALSO, A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE REGION UNTIL 900 PM. THE GREATEST THREAT FROM THESE STORMS WILL BE HAIL AND DAMAGING WINDS. LOOK FOR BRIEF HEAVY DOWNPOURS AS WELL. AND, REMEMBER, ALL THUNDERSTORMS CAN BE DEADLY AND DANGEROUS DUE TO LIGHTNING. BE ON THE ALERT FOR POSSIBLE WARNINGS AS THESE STORMS MOVE SOUTHWEST THIS AFTERNOON. 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. KANE
The Pittsburgh radar (KPBZ), 100 km away, was scanning. The volume nearest the first event began at 18:29 UTC.
9 thunderstorm wind, 6 hail. Local standard time, as filed.
Amateur radio trained spotter reported trees and power lines down.
Nickel size hail reported on the West side of Sharon.
Penny size hail was reported by the public.
Trees down in the area.
Several trees reported down in the area.
Trees reported down in the area.
Trees reported down in the area.
Amateur radio trained spotter reported 0.88 inch hail in Harmarville.
Trees down reported in West Deer in and around the Route 8 area.
Penny size hail was reported 5 miles Northeast of Canonsburg.
Ping pong ball size hail was reported in North Versailles Township.
Trees reported down near Republic.
Tree down in Nineveh.
Trees reported down in Grindstone-Rowes Run.
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, June 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: 36651, 36652, 36638, 36639, 36643, 36640, 36641, 36644, 36645, 44914, 36647, 36646, 36648, 36649, 36650.