Grant storm history

The Silvies River overflowed its banks with widespread field and road flooding in and around Seneca. Canyon Creek flooded into fields above Highway 395. Through the town on Canyon City, the high water damaged one bridge over Canyon Creek and 2 homes. The high water on the John Da…

The Grant County Emergency Manager reported high water over the US Route 26 at milepost 173 between John Day and Prairie City.

Social media reported huge pine trees uprooted and marble-sized hail.

Agrimet station reported 66 mph wind gust.

A fire lookout tower in southeast Grant County reported golf ball size hail.

Trained spotter near Dale, OR reported hail stones up to 1 inch in diameter. The storm continued northeast into neighboring Umatilla and Union counties, producing hail stones up to 1.5 inches in diameter.

Flooding of homes near the middle fork of the John Day River near Galena. Also flooding of forest service roads South of Ukiah in the northern part of the County. Emergency Manager reports other road closures and minor flooding of creeks and streams countywide. The John Day River…

Heavy rain from slow moving thunderstorms caused rock slides and water on roadways within an area that includes Mount Vernon, John Day and Canyon City in Grant county. Water entered a business through the front door in Mount Vernon. Rock slides occurred at mile post 157 of US Hig…

Heavy rain caused rock slides and water run off along Highway 402 between Long Creek and Monument in Grant county. The slides and flooding occurred at mile post 29 and between mile posts 18 and 22.

From southbound Highway 395, north of Seneca, a member of the public observed a brief funnel cloud from a thunderstorm. The funnel cloud lasted approximately 3 to 4 minutes. Heavy rain and pea sized hail also occurred.

Multiple power outages due to thunderstorms between John Day and Long Creek. Damage amounts are estimated.

Several pine trees were downed. The wind was accompanied by pea sized hail.

Low lying areas of Canyon City, John Day, Prairie City, and Mount Vernon were flooded along with other areas along the John Day River to the Picture Gorge area. The basement of the high school in Canyon City was flooded as were several businesses.

The North Fork of the John Day River at Monument crested at 15.8 feet which was 1.8 feet above flood stage. Flooding was also observed in Kimberly.

Only minor flooding observed. The John Day River gauge at John Day crested at 8.42 feet, which was .42 feet above flood stage.

Training showers and thunderstorms produced 1.25 inches of rainfall. Small hail to 1/4 inch was observed for a few minutes.

Spotter reported flooding from Indian Creek along Indian Creek Road and surrounding fields.

Keeney Two RAWS recorded 1.62 inches of rain in one hour.

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

Spotter reported 0.65 inch of rainfall in 1 hour.

Heavy rainfall and gusty winds accompanied the storm.

Gusts to 60 mph knocked down several trees in the Prairie City area. Some of the fallen trees knocked down power lines.

Hail covering ground.