A deep trough of low pressure dropped down the Washington Coastline then swung inland into the Inland Northwest during the afternoon of July 23rd.  The wave took on a strong negative tilt and moved into a moist and very unstable air mass.  The outcome was a widespread severe weather event for Eastern Washington and Northern Idaho producing large hail, flash flooding, and widespread wind damage.  Large hail and heavy rain were the initial threats early in the afternoon.  Late in the afternoon, the threat shifted to damaging winds with hundreds of downed or snapped trees.  The hardest hit areas were Northeastern Washington and Northern Idaho.  Falling trees led to some injuries in Eastern Washington.

Hail in STEVENS, WASHINGTON
From 23-JUL-14 14:15:00 to 23-JUL-14 15:20:00 (PST-8)
Location: KETTLE FALLS
Magnitude: 2.00 
Property damage: 14.00K
Crop damage: 0.00K
Reported by: Public

Hail ranging between quarters and hen eggs fell across eastern reaches of Kettle Falls, WA.  Seven vehicles were damaged at Pingston Creek Road and Highway 395.  The vehicles were dented in spots and some windows were cracked.  The hail also left dents on metal roofs of shop buildings with one resident stating that it was the worst storm he witnessed in 72 years.  A resident two miles south southeast of Kettle Falls stated the hail destroyed the vinyl siding on the south and western portions of his home.  The storm continued to produce severe hail as it tracked northeast toward the Canadian Border.  Hail to the size of half dollars was reported by the public four miles east southeast of Northport, WA.  Winds estimated around 50 mph also accompanied the storm leading to some tree damage eight miles southeast of Northport, WA.

Hail in WHITMAN, WASHINGTON
From 23-JUL-14 14:40:00 to 23-JUL-14 15:00:00 (PST-8)
Location: BISHOP
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 8.00K
Reported by: Trained Spotter

Hail to the size of half dollars was reported four miles north of Colton.

Thunderstorm Wind in STEVENS, WASHINGTON
From 23-JUL-14 15:25:00 to 23-JUL-14 16:30:00 (PST-8)
Location: FORD
Magnitude: 56.00 EG
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were knocked down across Stevens County with a majority of the damage occurring over southern portions of the county.  Several trees were downed near Addy, WA causing some structural damage to homes.  A CWOP located four miles northeast of Rice, WA clocked a wind gust of 61 mph.

Thunderstorm Wind in SPOKANE, WASHINGTON
From 23-JUL-14 15:00:00 to 23-JUL-14 15:45:00 (PST-8)
Location: SOUTH CHENEY
Magnitude: 61.00 MG
Property damage: 4.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

A wet microburst brought sustained winds of 35 to 50 mph with gusts 60 to 70 mph across Spokane County.  The winds descended near Cheney and peaked while passing through Airway Heights, Northwestern Spokane, and Deer Park.  Hundreds of Ponderosa Pines were snapped and downed from Northwestern Spokane to Deer Park.  Downed trees led to widespread structural damage, blocked roads, power outages, and injuries.  Significant damage was observed at the Riverside Village Mobile Home Park from trees falling on mobile homes prompting a search and rescue.  One woman was trapped but was not injured.  At least 40 mobile homes and cars in the park were severely damaged.  Forty eight trees were knocked down at a resort on Lake Eloika.  Trees fell on six RVs and the resort's oldest cabin forcing the owners to close their doors for a short period of time.  One person was injured when a tree landed on his vehicle while driving along Lakeside Dr near Reflection Lake in Elk, WA.  A tree branch flew through his windshield and drove him off the road severing his arm and impaling his hip.  He eventually lost his arm in the accident.  Three other people were injured near the Spokane Courthouse by falling tree branches.  Over 30,000 people lost power during the event.  Because of the extent of damage, some residents and businesses remained in the dark for up to four days.  Downed power poles and lightning strikes sparked several new wildfires which quickly grew due to the strong winds.  The winds completely damaged a airport hanger and caused between ten to twelve thousand dollars worth of damage to planes.

Thunderstorm Wind in OKANOGAN, WASHINGTON
From 23-JUL-14 16:20:00 to 23-JUL-14 17:00:00 (PST-8)
Location: AENEAS
Magnitude: 64.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Media relayed report that a resident between Molson and Chesaw measured 74 mph wind gust.  Damage is unknown at this time.

Thunderstorm Wind in PEND OREILLE, WASHINGTON
From 23-JUL-14 15:36:00 to 23-JUL-14 16:53:00 (PST-8)
Location: CAMDEN
Magnitude: 56.00 EG
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Broadcast Media

A severe thunderstorm producing winds of 55 to 70 mph knocked down numerous trees across Pend Oreille County.  The storms also brought periods of very heavy rainfall and small hail.  The widespread tree damage led to power outages, blocked roads, and three injuries.  The worst of the damage occurred in southern areas of the county near Diamond and Sacheen Lakes.  There were two critical injuries at Diamond Lake.  A tree fell on a boat as a family was attempting to dock the boat.  The parents were critically injured but the two kids escaped without injury.

Thunderstorm Wind in GARFIELD, WASHINGTON
From 23-JUL-14 14:38:00 to 23-JUL-14 14:46:00 (PST-8)
Location: ALPOWA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Alpowa Summit observation platform located along Highway 12 at 1775 feet clocked sustained winds of 48 mph with gusts to 60 mph.

Hail in OKANOGAN, WASHINGTON
From 23-JUL-14 12:26:00 to 23-JUL-14 12:50:00 (PST-8)
Location: WINTHROP ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm brought hail to the size of quarters along with very heavy rainfall.  Spotters in the area reported up to eight tenths of rainfall with this storm.  Winds of 40 to 55 mph also accompanied the storm.  The storm moved directly over the Carlton Complex fire camp in Winthrop.

Hail in GARFIELD, WASHINGTON
From 23-JUL-14 13:45:00 to 23-JUL-14 14:05:00 (PST-8)
Location: POMEROY
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 10.00K
Reported by: Emergency Manager

Hail ranging from quarters to the size of golf balls fell across northern Garfield County impacting the communities of Pomeroy and Mayview.  The hail dented three cars and broke sky lights in a metal building at Dye Seed Ranch.  Hail also damaged some of the wheat crop.

Debris Flow in CHELAN, WASHINGTON
From 23-JUL-14 13:20:00 to 23-JUL-14 13:40:00 (PST-8)
Location: ARDENVOIR
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Mills Canyon Fire personnel reported several small debris flows up the Entiat River Canyon near the Mills Canyon burn scar.

Debris Flow in CHELAN, WASHINGTON
From 23-JUL-14 13:30:00 to 23-JUL-14 14:00:00 (PST-8)
Location: ARDENVOIR
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Fire personnel on the Chiwaukum Complex reported several small debris flows along Entiat River Road near the Duncan burn scar.

Thunderstorm Wind in ASOTIN, WASHINGTON
From 23-JUL-14 15:15:00 to 23-JUL-14 16:00:00 (PST-8)
Location: CLARKSTON HGTS
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Silcott Island observation platform located on an island in the Snake River clocked sustained winds near 35 mph with gusts between 59 and 72 mph.

Hail in WHITMAN, WASHINGTON
From 23-JUL-14 14:05:00 to 23-JUL-14 14:40:00 (PST-8)
Location: WAWAWAI
Magnitude: 1.75 
Property damage: 2.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Hail ranging from quarters to the size of golf balls fell across southwestern Whitman County impacting the communities of Pullman and Palouse.  Winds of 50 to 55 mph also accompanied the storm which blew a large water tank about 200 feet.  Whitman County Commissioner relayed a report that there was heavy crop damage in the Colton and Pullman areas, but the extent was unknown.

Debris Flow in OKANOGAN, WASHINGTON
From 23-JUL-14 12:00:00 to 23-JUL-14 12:30:00 (PST-8)
Location: CARLTON
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Firefighters on the Carlton Complex reported a mud slide near the middle fork of Gold Creek.

Thunderstorm Wind in FERRY, WASHINGTON
From 23-JUL-14 15:26:00 to 23-JUL-14 16:40:00 (PST-8)
Location: KELLER
Magnitude: 56.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew down trees across several areas of Ferry County.  Downed trees and power lines were reported in Keller, Inchelium, and Danville.  A media picture from the county shows damage to a car port but the exact location is unknown.