Subtropical moisture moving north from California helped to trigger numerous severe thunderstorms during the afternoons and evenings of June 29-30.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:50:00 to 30-JUN-08 15:50:00 (PST-8)
Location: PENDLETON
Magnitude: 55.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Semi-truck and pickup with camper were flipped over on Interstate 84.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:50:00 to 30-JUN-08 15:50:00 (PST-8)
Location: PENDLETON
Magnitude: 55.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: NWS Employee

Damage to roof and dozens of large branches downed. Two trees uprooted near the Pendleton High School.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:55:00 to 30-JUN-08 15:55:00 (PST-8)
Location: (MEH)MEACHAM
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Twelve inch diameter tree broke off and fell against house.  Many other tree limbs downed.

Thunderstorm Wind in GRANT, OREGON
From 30-JUN-08 13:50:00 to 30-JUN-08 13:50:00 (PST-8)
Location: MT VERNON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Branches 1 to 2 inches in diameter blown down on road near Mount Vernon.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 14:40:00 to 30-JUN-08 14:40:00 (PST-8)
Location: UKIAH
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Utility Company

Power line down due to strong wind.

Hail in DESCHUTES, OREGON
From 29-JUN-08 13:45:00 to 29-JUN-08 13:45:00 (PST-8)
Location: TUMALO
Magnitude: 0.75 
Reported by: Trained Spotter

Large hail accompanied by heavy rainfall.

Thunderstorm Wind in WASCO, OREGON
From 29-JUN-08 16:20:00 to 29-JUN-08 16:20:00 (PST-8)
Location: MAUPIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree branches downed from winds estimated over 50 mph.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 14:57:00 to 30-JUN-08 14:57:00 (PST-8)
Location: UKIAH
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:24:00 to 30-JUN-08 15:24:00 (PST-8)
Location: PILOT ROCK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two inch diameter tree limbs downed.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:30:00 to 30-JUN-08 15:30:00 (PST-8)
Location: (MEH)MEACHAM
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Dozens of tree branches up to 12 inches in diameter were downed.

Thunderstorm Wind in UNION, OREGON
From 30-JUN-08 15:35:00 to 30-JUN-08 15:35:00 (PST-8)
Location: LA GRANDE
Magnitude: 39.00 EG
Property damage: 0.05K
Crop damage: 0.00K
Reported by: Public

Two inch diameter tree limbs downed.

Thunderstorm Wind in UMATILLA, OREGON
From 30-JUN-08 15:41:00 to 30-JUN-08 15:42:00 (PST-8)
Location: PENDLETON ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Peak gust of 59 mph at 1541 PST followed by another gust to 62 mph at 1547 PST.

Hail in DESCHUTES, OREGON
From 29-JUN-08 13:50:00 to 29-JUN-08 14:00:00 (PST-8)
Location: TUMALO
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in MORROW, OREGON
From 29-JUN-08 20:50:00 to 29-JUN-08 20:50:00 (PST-8)
Location: MUNLEY
Magnitude: 60.00 EG
Property damage: 250.00K
Crop damage: 100.00K
Reported by: Emergency Manager

Morrow County Emergency Management reports trees down on houses with power poles and lines down in the south side of Irrigon.  Wind damage to numerous houses and buildings in the Irrigon area. At least 22 power poles down from Paterson Ferry Road to Irrigon.