Saint Vrain Creek below Longmont

Last updated: Jun 25, 2025, 9:14 PM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 18.5 - Major, extensive flooding occurs as a wide expanse of the creek spreads out horizontally across the floodplain.
  • 17.5 - Flooding affects large areas along the creek with numerous roads and structures impacted.
  • 16.5 - There is significant flooding of agricultural land along the creek.

Gauge Info

Coordinates 40.1605, -105.008
RFC MBRFC
State CO
WFO BOU
County Boulder
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 06730525

Gauge Location

Recent Crests

1. 12.08 ft on 06-07-2021
2. 11.20 ft on 06-06-2020
3. 12.24 ft on 07-02-2019
4. 11.31 ft on 06-19-2018
5. 13.44 ft on 05-18-2017

Historic Crests

1. 14.56 ft on 05-09-2015
2. 13.44 ft on 05-18-2017
3. 12.97 ft on 06-01-2014
4. 12.24 ft on 07-02-2019
5. 12.17 ft on 06-14-2016

Vertical Datum Table

type NAVD88
major Flooding 4867.50 ft
moderate Flooding 4866.00 ft
minor Flooding 4864.50 ft
action 4864.00 ft
Latest Value 4859.17 ft
Gauge Zero 4849.00 ft

Gauge Photos

No Images Found

Probability Information

No Images Available

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Denver/Boulder
325 Broadway
Boulder, CO 80305-3328
Official Homepage