A stationary front remained stretched across the Upper Ohio Valley during the early morning hours of June 6th.  This front kept a very warm and humid airmass over  northwestern Pennsylvania.  A rapidly deepening area of low pressure moved quickly east across southern lower Michigan during the evening hours of June 5th.  This low eventually moved across Lake Erie during the early morning hours of the 6th.  Showers and thunderstorms developed along the stationary front stretching east from the low.  These storms eventually moved into northwestern Pennsylvania during the early morning hours of June 6th.  One of the stronger thunderstorms produced a downburst which overturned a camper trailer and killed a man.  The same thunderstorm later produced a tornado in western Erie County.  A second line of showers and storms affected Erie and Crawford Counties around daybreak on the 6th.  These storms developed ahead of a cold front trailing the low.  A tornado occurred in Crawford County just after daybreak.

Hail in ERIE, PENNSYLVANIA
From 06-JUN-10 01:40:00 to 06-JUN-10 01:40:00 (EST-5)
Location: ERIE
Magnitude: 1.25 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar sized hail was reported.

Thunderstorm Wind in ERIE, PENNSYLVANIA
From 06-JUN-10 01:40:00 to 06-JUN-10 01:40:00 (EST-5)
Location: ERIE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed several trees.

Tornado in CRAWFORD, PENNSYLVANIA
From 06-JUN-10 05:45:00 to 06-JUN-10 05:46:00 (EST-5)
Location: ROMETOWN
Tornado F-scale: EF0
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An EF0 tornado briefly touched down in extreme eastern Crawford County.  The touchdown occurred along Mageetown Road in rural Rome Township.  The tornado was on the ground for around a half mile before lifting.  Two homes along the damage path sustained roof damage.  A few trees were also downed.  The damage path appeared to be no wider than 20 yards.

Tornado in ERIE, PENNSYLVANIA
From 06-JUN-10 01:10:00 to 06-JUN-10 01:16:00 (EST-5)
Location: SPRINGFIELD STATION
Tornado F-scale: EF0
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF0 tornado touched down near a camp ground on West Lake Road northeast of North Springfield.  From the site of the initial touchdown, the tornado continued on the ground intermittently for almost six miles.  The tornado eventually lifted for good east of Girard.  The tornado caused damage to a few buildings.  Most of the damage was minor but a church did sustain significant damage to one wall.  Several business on the east side of Girard sustained roof damage.  Significant tree damage occurred along portions of the damage path.  The same thunderstorm that produced this tornado was also responsible for the damaging downburst winds that killed a camper in western Erie County.

Thunderstorm Wind in CRAWFORD, PENNSYLVANIA
From 06-JUN-10 05:07:00 to 06-JUN-10 05:09:00 (EST-5)
Location: ESPYVILLE
Magnitude: 52.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A thunderstorm downburst with winds estimated to be at least 60 mph downed dozens of trees on the east side of Pymatuning Lake in North and South Shenango Townships.  A few homes sustained minor damage, mainly from lost roofing or siding.  The thunderstorm responsible for this downburst also produced a tornado to the west of Pymatuning Lake in Ashtabula County, Ohio.

Thunderstorm Wind in ERIE, PENNSYLVANIA
From 06-JUN-10 01:05:00 to 06-JUN-10 01:09:00 (EST-5)
Location: NORTH SPRINGFIELD
Magnitude: 52.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A thunderstorm downburst with wind gusts estimated to be at least 60 mph caused damage at a campground in western Erie County.  The campground is located along Lake Erie northwest of North Springfield.  Several trees were knocked down and a camper trailer overturned at the campground.  A 36 year old man was killed when the overturned camper landed on him.  A damage path containing dozens of downed trees continued east from the campground for at least a mile.  The same thunderstorm that produced this downburst later produced a weak tornado that caused damage from northeast of North Springfield to near Girard.

Thunderstorm Wind in ERIE, PENNSYLVANIA
From 06-JUN-10 05:32:00 to 06-JUN-10 05:32:00 (EST-5)
Location: CORRY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed a few trees.

Thunderstorm Wind in CRAWFORD, PENNSYLVANIA
From 06-JUN-10 05:25:00 to 06-JUN-10 05:25:00 (EST-5)
Location: MEADVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed two large trees.