Dense Fog in Colorado, June 26, 1997

Name: Dense Fog in Colorado, June 26, 1997
Start: 1997-06-26T05:25
End: 1997-06-26T05:25
Location: Colorado

June 26, 1997 · NWS BOU · 1 event in 1 county or zone

1 dense fog, 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.

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The toll

Deaths: 1
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 dense fog. Local standard time, as filed.

Dense Fog, Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld

When: June 26, 5:25 AM MST
Where: Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld forecast zone
Deaths: 1 direct, 0 indirect
Coordinates: 40.611, -104.926 (the zone’s center; the record gives no point)

A woman was killed when she pulled in front of an oncoming tractor trailer just northwest of Berthoud. Dense fog had reduced visibility to less than 100 yards at the time of the accident.

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.

Event	Date	Age	Sex	Where	Kind
Dense Fog, Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld	1997-06-26	21	Female	Vehicle/Towed Trailer	Direct

What these are

Dense Fog: Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

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

The same day elsewhere

Every storm in Colorado in 1997 Every state in 1997 This day in weather history Warnings in Colorado, June 1997

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 2026-10-01. Each event’s entry at NCEI: 5607216.