Colorado, 1999

High Wind in Colorado, November 25, 1999

November 25, 1999 · NWS BOU · 3 events in 3 counties and zones

Strong chinook winds developed in and near the Front Range Foothills. Peak wind reports included: 100 mph (87 kts) at the Eldora Ski Resort, 77 mph (67 kts) at Carter Lake and NCAR Mesa Lab and 75 mph (65 kts) atop Niwot Ridge.

Where it happened

Every event with a place to put it; 3 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
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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.

Strong chinook winds developed in and near the Front Range Foothills. Peak wind reports included: 100 mph (87 kts) at the Eldora Ski Resort, 77 mph (67 kts) at Carter Lake and NCAR Mesa Lab and 75 mph (65 kts) atop Niwot Ridge.

The radar

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

Open the radar archive at this moment

Event by event

3 high wind. Local standard time, as filed.

High Wind, Rabbit Ears & Medicine Bow Ranges/Rocky Mountain National Park / W Larimer / Jackson Ecept C / N Grand / X Nw Boulder

When
November 25, 3:00 AM MST to 9:50 AM MST
Where
Rabbit Ears & Medicine Bow Ranges/Rocky Mountain National Park / W Larimer / Jackson Ecept C / N Grand / X Nw Boulder forecast zone
Measured
87 kt (100 mph)
Reported by
TRAINED SPOTTER
Coordinates
40.382, -105.820 (the zone’s center; the record gives no point)

High Wind, Northern Front Range Foothills/Upper Laramie and Cache la Poudre River Basins / C Boulder / Ne Gilpin / C Larimer

When
November 25, 3:00 AM MST to 9:50 AM MST
Where
Northern Front Range Foothills/Upper Laramie and Cache la Poudre River Basins / C Boulder / Ne Gilpin / C Larimer forecast zone
Measured
67 kt (77 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.380, -105.410 (the zone’s center; the record gives no point)

High Wind, Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld

When
November 25, 3:00 AM MST to 9:50 AM MST
Where
Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld forecast zone
Measured
67 kt (77 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.611, -104.926 (the zone’s center; the record gives no point)

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

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

The same day elsewhere

More

Every storm in Colorado in 1999Every state in 1999This day in weather historyWarnings in Colorado, November 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: 5721239, 5721240, 5721241.