Flash Flood, Missoula
- When
- May 26, 8:00 PM MST
- Where
- Missoula County, Evaro
- Coordinates
- 47.037, -113.924 (the zone’s center; the record gives no point)
Flash Flood in Montana, May 26, 1998
Rainfall in excess of one inch in 4 hours caused street flooding on many streets in Missoula while O'Keefe Creek , south of Evaro, was out of its banks.
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
- None recorded
- 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 MSO wrote it up.
Rainfall in excess of one inch in 4 hours caused street flooding on many streets in Missoula while O'Keefe Creek , south of Evaro, was out of its banks.
The radar
The Missoula radar (KMSX), 5 km away, was scanning. The volume nearest the first event began at 03:01 UTC.
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
- Tornadoes and Flash Flooding in Texas, May 26 to 27, 1998
- Flash Flooding in Washington, May 26 to 27, 1998
- Flash Flooding and Hail in Texas, May 26 to 27, 1998
- Flash Flooding and Heavy Rain in Idaho, May 26 to 27, 1998
- Hail and Damaging Winds in North Carolina, May 26, 1998
- Hail and Damaging Wind in Texas, May 26, 1998
- Flash Flood and Flood in Alaska, May 26 to 31, 1998
- Hail in Texas, May 26, 1998
- Damaging Wind in North Carolina, May 26, 1998
- Damaging Wind in Alabama, May 26, 1998
- Damaging Wind in North Carolina, May 26, 1998
- Flash Flood and Hail in Texas, May 26, 1998
More
Every storm in Montana in 1998Every state in 1998This day in weather historyWarnings in Montana, May 1998
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: 5643189.