Tornado in Colorado, July 4, 1999

Name: Tornado in Colorado, July 4, 1999
Start: 1999-07-04T15:03
End: 1999-07-04T15:05
Location: Colorado

July 4, 1999 · NWS BOU · 1 event in 1 county or zone

1 tornado, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. 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: 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.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

1 tornado. Local standard time, as filed.

Tornado, Washington

When: July 4, 3:03 PM MST to 3:05 PM MST
Where: Washington County, 15 mi NE of Last Chance
Rating: F0
Path length: 0.1 mi
Path width: 25 yd
Reported by: STORM CHASER
Coordinates: 39.880, -103.380

A small tornado touched down briefly but did no damage.

What these are

Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Colorado in 1999 Every state in 1999 This day in weather history The tornado archive for Colorado, 1999 Warnings in Colorado, July 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: 5707866.