Colorado, 1999

Heavy Snow in Colorado, September 28, 1999

September 28, 1999 · NWS BOU · 7 events in 7 counties and zones

Heavy snow developed in the Front Range Foothills and portions of the adjacent plains. Snowfall totals included: 12 inches at Allenspark, 10 inches near Buckhorn Mountain, 8 inches at Estes Park, Hourglass Lake and Red Feather Lakes, 7 inches at Conifer and 4 miles south of Livermore, with 6 inches, 9 miles west-southwest of Rustic.

Where it happened

Every event with a place to put it; 7 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
None recorded
Crop damage
None recorded
Events
7

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.

Heavy snow developed in the Front Range Foothills and portions of the adjacent plains. Snowfall totals included: 12 inches at Allenspark, 10 inches near Buckhorn Mountain, 8 inches at Estes Park, Hourglass Lake and Red Feather Lakes, 7 inches at Conifer and 4 miles south of Livermore, with 6 inches, 9 miles west-southwest of Rustic. Although the snowfall in the plains was not a great, generally ranging from 1 to 4 inches; it did cause problems. The heavy wet snow snapped branches from fully leafed trees, downing power lines and causing scattered outages.

The radar

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

Open the radar archive at this moment

Event by event

7 heavy snow. Local standard time, as filed.

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

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Northern Front Range Foothills/Upper Laramie and Cache la Poudre River Basins / C Boulder / Ne Gilpin / C Larimer forecast zone
Reported by
TRAINED SPOTTER
Coordinates
40.380, -105.410 (the zone’s center; the record gives no point)

Heavy Snow, Southern Front Range Foothills/Clear Creek Basin / W Jefferson / Ne Park / E Clear Creek / Se Gilpin / Sw Douglas

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Southern Front Range Foothills/Clear Creek Basin / W Jefferson / Ne Park / E Clear Creek / Se Gilpin / Sw Douglas forecast zone
Reported by
TRAINED SPOTTER
Coordinates
39.516, -105.413 (the zone’s center; the record gives no point)

Heavy Snow, Morgan County/Fort Morgan and Vicinity

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Morgan County/Fort Morgan and Vicinity forecast zone
Reported by
NEWSPAPER
Coordinates
40.263, -103.810 (the zone’s center; the record gives no point)

Heavy Snow, Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Eastern Larimer and Northwestern Weld Counties / Fort Collins and Vicinity / E Larimer / Nw Weld forecast zone
Reported by
TRAINED SPOTTER
Coordinates
40.611, -104.926 (the zone’s center; the record gives no point)

Heavy Snow, Eastern Boulder County/Boulder and Vicinity / E Boulder / X Sw Weld

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Eastern Boulder County/Boulder and Vicinity / E Boulder / X Sw Weld forecast zone
Reported by
TRAINED SPOTTER
Coordinates
39.878, -105.220 (the zone’s center; the record gives no point)

Heavy Snow, Denver Metropolitan Area / E Jefferson / W Adams / Denver / W Arapahoe / N Douglas

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Denver Metropolitan Area / E Jefferson / W Adams / Denver / W Arapahoe / N Douglas forecast zone
Reported by
TRAINED SPOTTER
Coordinates
39.714, -104.707 (the zone’s center; the record gives no point)

Heavy Snow, Southern Weld County/Greeley and Vicinity

When
September 28, 1:45 AM MST to 2:00 PM MST
Where
Southern Weld County/Greeley and Vicinity forecast zone
Reported by
TRAINED SPOTTER
Coordinates
40.555, -104.392 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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, September 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 2026-09-30. Each event’s entry at NCEI: 5718231, 5718232, 5718233, 5718234, 5718235, 5718236, 5718237.