Flash Flood in Montana, August 28, 1999

Name: Flash Flood in Montana, August 28, 1999
Start: 1999-08-28T12:30
End: 1999-08-28T14:30
Location: Montana

August 28, 1999 · NWS GGW · 1 event in 1 county or zone

1 flash flood, as filed by the National Weather Service.

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

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The toll

Deaths: 0
Injuries: 0
Property damage: $10,000
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.

The radar

The Glasgow radar (KGGW), 96 km away, was scanning. The volume nearest the first event began at 19:28 UTC.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Phillips

When: August 28, 12:30 PM MST to 2:30 PM MST
Where: Phillips County, Southwest Portion
Property damage: $10,000
Reported by: GENERAL PUBLIC
Coordinates: 48.259, -107.913 (the zone’s center; the record gives no point)

Four to six inches of rain fell rapidly over southwest Phillips county along the Missouri River. The heavy rain caused copious amounts of runoff along the Missouri Breaks. Water rapidly running down the hill toward Fred Robinson Bridge caused washouts along Hwy 191.

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

Every storm in Montana in 1999 Every state in 1999 This day in weather history Warnings in Montana, August 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: 5709598.