Montana, 1999Flood in Montana, March 29 to 30, 1999
March 29 to 30, 1999 · NWS GGW · 1 event in 1 county or zone
1 flood, as filed by the National Weather Service.
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
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- 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.
Flood, Valley
- When
- March 29, 2:00 AM MST to March 30, 10:45 AM MST
- Where
- Valley forecast zone
- Reported by
- OTHER FEDERAL AGENCY
- Coordinates
- 48.365, -106.667 (the zone’s center; the record gives no point)
The Milk River rose above flood stage of 25 feet in Glasgow late on March 28. The river crested at 25.53 feet during the morning of the 29th. While the river did leave its banks it did not reach a stage that endangered homes or other property. Livestock did become stranded but no losses were reported. The river rapidly receded during the day on the 30th.
- 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.
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: 5683215.