The combination of an unstable atmosphere and converging wind boundaries over Lincoln County spawned four tornadoes, as well as large hail and flash flooding.  This activity spread into northern Whitman County as well.  The tornadoes were observed in a 25 minute period between Wilbur and Creston near Highway 2.  All four tornadoes were non-supercell tornadoes and rated EF0.  All four tornadoes remained over wheat fields and thus resulted in no property damage.  Meanwhile, a severe thunderstorm produced quarter sized hail three miles west-southwest of Sprague.  Heavy rain also fell with the storms over Lincoln and northern Whitman County.  On Highway 23, about five miles northwest of Sprague, water covered portions of the highway between mile posts 48 and 53.  In northern Whitman County, mud and debris washed onto roads near Ewen, Colfax, and St. John.

Tornado in LINCOLN, WASHINGTON
From 06-JUN-09 13:50:00 to 06-JUN-09 14:15:00 (PST-8)
Location: CRESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An EF0 tornado formed two miles south of Highway 2 between Wilbur and Creston.  This tornado tracked west before dissipating.  This was one of four tornadoes that occurred within a 25 minute period in the area.

Tornado in LINCOLN, WASHINGTON
From 06-JUN-09 13:50:00 to 06-JUN-09 14:15:00 (PST-8)
Location: CRESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An EF0 tornado formed two miles south of Highway 2 between Creston and Wilbur.  This tornado tracked to the west-southwest before dissipating.  This was one of four tornadoes that occurred within a 25 minute period.

Tornado in LINCOLN, WASHINGTON
From 06-JUN-09 13:50:00 to 06-JUN-09 14:05:00 (PST-8)
Location: CRESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An EF0 tornado was observed two miles south of Highway 2 between Creston and Wilbur.  This was one of four tornadoes that occurred within a 25 minute period.  This tornado tracked west-northwest and stayed just south of Ramsey Road.

Flash Flood in WHITMAN, WASHINGTON
From 06-JUN-09 15:22:00 to 06-JUN-09 16:30:00 (PST-8)
Location: COLFAX
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water and mud was observed over North Palouse Road near the Golf Course.

Flash Flood in WHITMAN, WASHINGTON
From 06-JUN-09 14:09:00 to 06-JUN-09 14:40:00 (PST-8)
Location: ST JOHN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash Flood in LINCOLN, WASHINGTON
From 06-JUN-09 14:50:00 to 06-JUN-09 16:30:00 (PST-8)
Location: SPRAGUE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in LINCOLN, WASHINGTON
From 06-JUN-09 13:55:00 to 06-JUN-09 14:00:00 (PST-8)
Location: SPRAGUE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in WHITMAN, WASHINGTON
From 06-JUN-09 15:00:00 to 06-JUN-09 16:00:00 (PST-8)
Location: EWAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Mud and debris was observed flowing over Highway 23.  In addition, water was observed over the road at Rock Lake Road and Glorfield Road.

Tornado in LINCOLN, WASHINGTON
From 06-JUN-09 13:50:00 to 06-JUN-09 14:15:00 (PST-8)
Location: CRESTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An EF0 tornado formed two miles south of Highway 2 between Creston and Wilbur, then tracked northwest before dissipating less than a mile from Highway 2.  This tornado was one of four tornadoes observed in a 25 minute period in the area.