Colorado, 2024

Heavy Snow in Colorado, May 11 to 12, 2024

May 11 to 12, 2024 · NWS BOU · 1 event in 1 county or zone

Heavy snow fell over the central and southern mountains of Colorado May 11th and 12th dropping as much as 18 inches of snow over the Mosquito and Ten Mile Mountains.

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
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.

What happened

The episode as NWS BOU wrote it up.

Heavy snow fell over the central and southern mountains of Colorado May 11th and 12th dropping as much as 18 inches of snow over the Mosquito and Ten Mile Mountains.

The radar

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

Open the radar archive at this moment

Event by event

1 heavy snow. Local standard time, as filed.

Heavy Snow, S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet

When
May 11, 5:00 PM MST to May 12, 8:00 AM MST
Where
S & Se Grand / W Central & Sw Boulder / Gilpin / Clear Creek / Summit / N & W Park Counties Above 9000 Feet forecast zone
Reported by
Mesonet
Coordinates
39.726, -105.675 (the zone’s center; the record gives no point)

Here's a list of heavy snowfall reports from the 11th and 12th: Buckskin Joe SNOTEL 3 miles west-northwest of Alma an estimated 19 inches, Hoosier Pass SNOTEL 5 miles south-southwest of Blue River an estimated 18 inches Fremont Pass SNOTEL 1 mile northwest of Climax an estimated 16 inches, and a report from the public in Alma of 16 inches of snow.

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 2024Every state in 2024This day in weather historyWarnings in Colorado, May 2024

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: 1168344.