Colorado, 1996

Flash Flood in Colorado, July 12, 1996

July 12, 1996 · NWS BOU · 1 event in 1 county or zone

Very heavy rain from a fast moving thunderstorm dumped 2 to 3 inches of rain within an hour over southern Jefferson County. Two people were killed near the town of Buffalo Creek when a 20-ft wall of water blasted through the area.

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.

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The toll

Deaths
2
Injuries
0
Property damage
$520,000
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 BOU wrote it up.

Very heavy rain from a fast moving thunderstorm dumped 2 to 3 inches of rain within an hour over southern Jefferson County. Two people were killed near the town of Buffalo Creek when a 20-ft wall of water blasted through the area. Utility poles and trees were uprooted, cars, propane tanks and bridges were destroyed in the flood's path. Entire buildings were moved off their foundations or heavily damaged in the floodwaters. The first fatality occurred along Highway 126, when the driver of a pickup was washed off the road by the deadly wall of water. The second death occurred further downstream when a man in a 5th wheel trailer was washed away. This was the second disaster to strike the area in the past few months. The community was already recovering from a wildfire which burned about 12,000 acres of forestland in May. With the forestland surrounding Buffalo Creek burned by fire; very little vegetation was available to slow the storm's runoff which resulted in the flash flood. Power, along with water and sewer service, were heavily damaged in the flood, and in some cases beyond repair. The cost of repairing the roads and water system in the area were estimated to be around $521,000.

The radar

The Denver radar (KFTG), 64 km away, was scanning. The volume nearest the first event began at 03:01 UTC.

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Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Jefferson

When
July 12, 8:00 PM MST to 9:00 PM MST
Where
Jefferson County, Buffalo Creek
Deaths
2 direct, 0 indirect
Property damage
$520,000
Coordinates
39.586, -105.250 (the zone’s center; the record gives no point)

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Flash Flood, Jefferson1996-07-1273MaleMobile/Trailer HomeDirect
Flash Flood, Jefferson1996-07-1243MaleVehicle/Towed TrailerDirect

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

More

Every storm in Colorado in 1996Every state in 1996This day in weather historyWarnings in Colorado, July 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: 5558277.