Wyoming, 2000

Flash Flood in Wyoming, August 15, 2000

August 15, 2000 · NWS CYS · 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
$20,000
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 Cheyenne radar (KCYS), 20 km away, was scanning. The volume nearest the first event began at 00:46 UTC.

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Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Laramie

When
August 15, 5:45 PM MST to 11:00 PM MST
Where
Laramie County, West Portion
Property damage
$20,000
Reported by
EMERGENCY MANAGER
Coordinates
41.307, -104.690 (the zone’s center; the record gives no point)

Heavy rains fell over parts of western Laramie county west of Cheyenne, with estimatesof 4 to 6 inches over an area southwest of Federal, WY. Some flooding was reported onHappy Jack Road, with parts of county road 109 washed out.

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 Wyoming in 2000Every state in 2000This day in weather historyWarnings in Wyoming, August 2000

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: 5164527.