Flood, Kootenai/Cabinet Region
- When
- May 25, 12:00 AM MST to May 28, 12:00 PM MST
- Where
- Kootenai/Cabinet Region forecast zone
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 48.171, -114.863 (the zone’s center; the record gives no point)
Flooding in Montana, May 25 to 28, 1999
Warm temperatures caused rapid snowmelt in the mountains with subsequent flooding of local streams and a few rivers in western Montana. The Yaak River near the Yaak Mercantile flooded 5 homes, and the Bitterroot River from Darby to Florence flooded fishing access sites and Osprey, Simpson and Luby Lanes roads near Florence.
Where it happened
Every event with a place to put it; 2 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
- 2
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.
Warm temperatures caused rapid snowmelt in the mountains with subsequent flooding of local streams and a few rivers in western Montana. The Yaak River near the Yaak Mercantile flooded 5 homes, and the Bitterroot River from Darby to Florence flooded fishing access sites and Osprey, Simpson and Luby Lanes roads near Florence.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 flood. Local standard time, as filed.
Flood, Missoula / Bitterroot Valleys
- When
- May 26, 5:00 AM MST to May 28, 12:00 PM MST
- Where
- Missoula / Bitterroot Valleys forecast zone
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 46.560, -114.023 (the zone’s center; the record gives no point)
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Texas, May 25 to 26, 1999
- Tornadoes and Flash Flooding in Texas, May 25, 1999
- Tornadoes and Hail in Oklahoma, May 25, 1999
- Tornadoes in Texas, May 25, 1999
- Tornadoes and Hail in Texas, May 25 to 26, 1999
- Damaging Wind and Lightning Strike in New York, May 25, 1999
- Flash Flood and Hail in Texas, May 25 to 26, 1999
- Damaging Wind in Massachusetts, May 25, 1999
- Tornado and Hail in New Mexico, May 25, 1999
- Hail in New Mexico, May 25, 1999
- Heavy Snow and Heavy Rain in Alaska, May 25, 1999
- Wildfire in Florida, May 25 to 30, 1999
More
Every storm in Montana in 1999Every state in 1999This day in weather historyWarnings in Montana, May 1999
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: 5699138, 5699139.