Flash Flood, Okanogan
- When
- June 27, 1:00 PM PST to 3:00 PM PST
- Where
- Okanogan County, Coulee Dam
- Property damage
- $380,000
- Coordinates
- 48.549, -119.741 (the zone’s center; the record gives no point)
Flash Flood in Washington, June 27, 1996
A slow moving thunderstorm dropped nearly 3 inches of rain in 2 hrs near Grand Coulee Dam. Highway 155 was washed out in several places and several homeowners yards were filled with debris from the flooding.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $380,000
- Crop damage
- None recorded
- Events
- 1
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS SEW wrote it up.
A slow moving thunderstorm dropped nearly 3 inches of rain in 2 hrs near Grand Coulee Dam. Highway 155 was washed out in several places and several homeowners yards were filled with debris from the flooding.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Lightning Strike in Florida, June 27, 1996
- Heavy Rain in Colorado, June 27, 1996
- Flash Flood in Missouri, June 27, 1996
- Lightning Strike in Florida, June 27, 1996
- Lightning Strike in Florida, June 27, 1996
- Damaging Wind in Alabama, June 27, 1996
- Damaging Wind in Montana, June 27, 1996
- Hail in Montana, June 27, 1996
- Hail in Montana, June 27, 1996
- Hail in Colorado, June 27, 1996
- Hail in Montana, June 27, 1996
- Damaging Wind in Montana, June 27, 1996
More
Every storm in Washington in 1996Every state in 1996This day in weather historyWarnings in Washington, June 1996
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5551319.