During the evening of July 23rd, a strong upper level trough triggered thunderstorms in a moist and unstable air mass over northeast Oregon. These storms moved northeastward into eastern Washington and north Idaho forming into a line of thunderstorms featuring severe wind gusts as they passed through the region. Numerous reports of 60 mph wind gusts, downed trees and power outages were received from northeast Washington and north Idaho during the late evening hours as this line swept through the region. Lightning and downed power lines caused multiple brush and structure fires around the area. An estimated 30,000 customers lost power during this thunderstorm outbreak in northeast Washington and north Idaho.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-19 20:00:00 to 23-JUL-19 20:15:00 (PST-8)
Location: SPOKANE
Magnitude: 55.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple reports were received of downed trees, power outages and damaged vehicles from thunderstorm winds in the South Hill neighborhood of Spokane.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-19 20:21:00 to 23-JUL-19 20:22:00 (PST-8)
Location: (SFF)FELTS FLD SPOKA
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS station at the Spokane Felts Field Airport measured a thunderstorm wind gust of 62 mph.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-19 19:59:00 to 23-JUL-19 20:00:00 (PST-8)
Location: (GEG)SPOKANE INTL AR
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS station at the Spokane International Airport measured a thunderstorm wind gust of 60 mph.

Thunderstorm Wind in PEND OREILLE, WASHINGTON
From 23-JUL-19 20:50:00 to 23-JUL-19 21:00:00 (PST-8)
Location: NEWPORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public reported a 12 inch diameter pine tree snapped halfway up the trunk near Newport from a thunderstorm wind gust.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-19 20:00:00 to 23-JUL-19 20:45:00 (PST-8)
Location: SPOKANE
Magnitude: 52.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Department of Highways

City of Spokane crews removed 26 downed trees from residential city streets and one arterial as a result of thunderstorm winds that measured at 60 mph at the Spokane Airport.

Lightning in SPOKANE, WASHINGTON
From 23-JUL-19 20:15:00 to 23-JUL-19 20:35:00 (PST-8)
Location: SPOKANE
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning striking a power line caused a fire which spread to a nearby house, gutting it and damaging another neighboring house. Time estimated from radar data.

Thunderstorm Wind in FERRY, WASHINGTON
From 23-JUL-19 20:30:00 to 23-JUL-19 20:45:00 (PST-8)
Location: METEOR
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

A thunderstorm wind gust caused a tree to fall on a cabin and damaged a dock at the Rainbow Beach Resort on North Twin Lake. Time estimated from radar data.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-19 20:00:00 to 23-JUL-19 20:15:00 (PST-8)
Location: FT WRIGHT
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds downed trees and damaged power lines in the Brown's Addition section of Spokane. Time estimated from Radar.