Umatilla storm history

Umatilla County ' There was record flooding along the entire reach of the Umatilla River. There was extensive damage to areas along the river, including homes, roads including Interstate 84, railroads as well as other public facilities such as parks and sports complexes. Along th…

A combination of high flows from rain and snow melt coming out of the Blue Mountains and record releases out of McKay Reservoir produced field and roadside flooding downstream of Pendleton through Echo, Hermiston and Umatilla. A footbridge at Umatilla was damaged by the high flow…

McKay Creek, with headwaters in the Blue Mountains saw significant rises with record inflows recorded at McKay Reservoir in Pendleton. This resulted in increased releases from the McKay Dam, with flooding downstream along the creek through Pendleton. Teams were out in partnership…

A member of the public provided a photo of a funnel cloud that occurred near the the town of Hermiston. Social media posts from local newspapers also provided other images of the funnel cloud taken around the Hermiston area. Location is estimated from radar and orientation of dis…

Pendleton and Hermiston ASOS reported wind gusts of 68 and 60 mph, respectively.

A social media report indicated hail up to the size of 0.88 inches fell in Milton-Freewater between 0600 to 0620 PDT.

Mesonet station OD191, 2 miles WSW of Mission, reported a wind gust of 62 mph from the outflow boundary of a deteriorating thunderstorm at 2220 PDT.

A NWS Storm Survey conducted the day after the event revealed areas of isolated down trees and tree branches, where one of the downed trees had landed on a home. There was also an area of corn crops that had been blown over in a unidirectional manner.

A downburst occurred from a strong thunderstorm that affected several unoccupied, parked mobile homes. One of the mobile homes was lifted 30 feet into a neighboring mobile home, destroying the lifted mobile home. Other mobile homes suffered some roof and other structural damage, …

Hail stones up to the diameter of 1.5 inches was reported near the Drift Fence Campground. The same thunderstorm had also produced 1 inch sized hail in the neighboring Grant county.

Hail stones up to 1 inch in diameter were measured at the Indian Lake Campground.

The Pendleton Airport air traffic controller relayed a report from a pilot travelling south of the airfield that debris and dust was being picked up by a small tornado. A funnel cloud was observed by NWS personnel and by the public shortly before the relayed report.

A trained spotter 9 miles west of Meacham, OR reported water covering county roadways making them impassable at 0900 PST on May 29th. A public Facebook report from 8 miles east northeast of Pilot Rock, OR had video of flooding over Popcorn Ln along Mckay Creek, making the road im…

A public report 4 miles north northwest of Meacham, OR reported a thunderstorm that was producing 1.5 inch hail stones near exit 234 along I-84 in northeast OR at 1540 PST. A trained spotter 6 miles south southwest of Thorn Hollow, OR also reported hail that ranged in size from 0…

Public reports about 10 miles south of Pendleton, OR reported a thunderstorm that was producing hail between the sizes of 1 inch to 1.25 inches between 1700 PST and 1730 PST.

Social media report 15 miles ENE of Milton-Freewater, OR indicated a thunderstorm produced hail up to 1.75 inches just after 12 am PDT on June 15th.

Numerous trees and tree limbs down. One quarter mile visibility in blowing dust.

Trees and powerlines down. Roof damage reported.

The most significant flooding was reported in Pilot Rock along Birch Creek where some homes were flooded. Minor flood was reported along McKay Creek in Pendleton due to outflow from the Dam. Flooding was also reported in and around Ukiah. The Umatilla at Gibbon and Pendleton both…

Minor tree damage reported.

Damage to metal exterior of home. Time estimated from radar.

A levy along Camas Creek in Ukiah was damaged with flooding of several outbuildings on properties in Ukiah, several homes were surrounded with water.

Thunderstorm wind gust of 63 mph occurred 4 miles W of Adams in Umatilla county. Similar winds occurred in and around Pendleton and Thorn Hollow, all in Umatilla county. Tree branches were downed due to these winds.

Measured peak gust of 64 mph from a thunderstorm at Pikes Peak along the west slope of the Blue Mountains in Umatilla county. Elevation 3454 feet MSL.

Umatilla near Gibbon - Flood stage 7.0 feet. River went above flood stage at 1000 PST on the 4th, cresting at 7.5 feet at 1845 PST on the 4th, then went below flood stage at 230 PST on the 5th.

Measured gust to 64 mph by the ASOS at the Pendleton airport.

In Pendleton, the heavy rain cause several small debris flows along Airport Road and several intersections were flooding with water about 5 to 6 inches deep. Rainfall amounts include 1.54 inches of rain at the NWS office at the Pendleton Airport, with 0.88 inch falling in 30 minu…

Thunderstorm wind gust to 62 mph with sustained winds of 24 mph at the same time.

The Umatilla river near Gibbon (flood stage 7.0) crested at 7.8 feet around 0500 on March 16th.

Public called in a report of ping pong ball sized hail doing significant damage to his car.

Public reported penny sized hail in Meacham.

Davis Weather Station at office measure 65 MPH wind gust.

The Pendleton ASOS measured 68 MPH wind gust.