Big Thompson River (CO) at Loveland

Last updated: Jul 17, 2025, 10:45 PM UTC

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

U.S. Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

Auto Refresh

Traces and Thresholds Click to turn on/off display

CATEGORY STAGE

Major Flooding 11.5 ft

Moderate Flooding 11 ft

Minor Flooding 10 ft

Action 9 ft

Reliability of the Forecast:

NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
Auto Refresh

	CATEGORY	STAGE
	Major Flooding	11.5 ft
	Moderate Flooding	11 ft
	Minor Flooding	10 ft
	Action	9 ft

Flood Impacts 🅘

12 - Extensive, life-threatening flooding occurs with roads crossing the Big Thompson River likely impassable. This level represents a flood that has a 1-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
11.5 - Widespread, major flooding occurs with many roads, homes and businesses impacted. This level represents a flood that has a 2-percent chance of being equaled or exceeded in any given year. For more information click <a href="inundation/faq_google.php">here</a>.
11 - Numerous streets along and bridges crossing the Big Thompson River in Loveland flood.

Gauge Info

Coordinates	40.3786, -105.061
RFC	MBRFC
State	CO
WFO	BOU
County	Larimer
Data Provider(s)
U.S. Geological Survey	USGS--Water Resources of the United States
USGS	06741510

Gauge Location

Recent Crests

1.	4.61 ft	on 06-07-2021
2.	3.66 ft	on 06-01-2020
3.	2.97 ft	on 06-08-2019
4.	2.89 ft	on 05-28-2018
5.	3.47 ft	on 06-23-2017

Historic Crests

1.	11.93 ft	on 09-13-2013
2.	10.48 ft	on 04-30-1999
3.	10.10 ft	on 04-30-1980
4.	9.73 ft	on 05-30-1995
5.	8.23 ft	on 08-11-1994

Vertical Datum Table

type	NGVD29
major Flooding	4917.50 ft
moderate Flooding	4917.00 ft
minor Flooding	4916.00 ft
action	4915.00 ft
Latest Value	4907.65 ft
Gauge Zero	4906.00 ft

Gauge Photos

Photo 1 of 2

Looking Downstream

Probability Information

No Images Available

Unique Local Info

Observations provided by the U.S. Geological Survey in cooperation with the City of Loveland.

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.

Resources

Hydrologic Resource Links

Additional Resource Links

WFO Information

Weather Forecast Office

Denver/Boulder

325 Broadway

Boulder, CO 80305-3328

(303) 494-4221

Ask Questions/Webmaster

Official Homepage

1.	4.61 ft	on 06-07-2021
2.	3.66 ft	on 06-01-2020
3.	2.97 ft	on 06-08-2019
4.	2.89 ft	on 05-28-2018
5.	3.47 ft	on 06-23-2017
6.	3.94 ft	on 06-12-2016
7.	7.22 ft	on 05-19-2015
8.	6.85 ft	on 05-31-2014
9.	11.93 ft	on 09-13-2013
10.	6.27 ft	on 07-07-2012
11.	4.06 ft	on 07-13-2011
12.	6.61 ft	on 06-12-2010
13.	3.30 ft	on 05-22-2009
14.	2.66 ft	on 06-05-2008
15.	3.24 ft	on 07-27-2007
16.	3.02 ft	on 08-25-2006
17.	3.62 ft	on 07-24-2004
18.	3.92 ft	on 06-18-2003
19.	2.37 ft	on 06-10-2002
20.	3.26 ft	on 10-24-2000
21.	10.48 ft	on 04-30-1999
22.	3.33 ft	on 07-11-1998
23.	6.61 ft	on 06-10-1997
24.	3.56 ft	on 06-23-1996
25.	9.73 ft	on 05-30-1995
26.	8.23 ft	on 08-11-1994
27.	4.62 ft	on 05-24-1993
28.	4.08 ft	on 08-07-1992
29.	5.44 ft	on 06-02-1991
30.	4.67 ft	on 05-29-1990
31.	5.58 ft	on 06-03-1989
32.	3.36 ft	on 06-05-1988
33.	3.84 ft	on 06-09-1987
34.	4.79 ft	on 07-06-1986
35.	4.24 ft	on 06-18-1985
36.	5.43 ft	on 05-16-1984
37.	7.65 ft	on 06-12-1983
38.	7.17 ft	on 09-14-1982
39.	3.62 ft	on 08-08-1981
40.	10.10 ft	on 04-30-1980
41.	3.04 ft	on 08-19-1979

1.	11.93 ft	on 09-13-2013
2.	10.48 ft	on 04-30-1999
3.	10.10 ft	on 04-30-1980
4.	9.73 ft	on 05-30-1995
5.	8.23 ft	on 08-11-1994
6.	7.65 ft	on 06-12-1983
7.	7.22 ft	on 05-19-2015
8.	7.17 ft	on 09-14-1982
9.	6.85 ft	on 05-31-2014
10.	6.61 ft	on 06-10-1997
11.	6.61 ft	on 06-12-2010
12.	6.27 ft	on 07-07-2012
13.	5.58 ft	on 06-03-1989
14.	5.44 ft	on 06-02-1991
15.	5.43 ft	on 05-16-1984
16.	4.79 ft	on 07-06-1986
17.	4.67 ft	on 05-29-1990
18.	4.62 ft	on 05-24-1993
19.	4.61 ft	on 06-07-2021
20.	4.24 ft	on 06-18-1985
21.	4.08 ft	on 08-07-1992
22.	4.06 ft	on 07-13-2011
23.	3.94 ft	on 06-12-2016
24.	3.92 ft	on 06-18-2003
25.	3.84 ft	on 06-09-1987
26.	3.66 ft	on 06-01-2020
27.	3.62 ft	on 08-08-1981
28.	3.62 ft	on 07-24-2004
29.	3.56 ft	on 06-23-1996
30.	3.47 ft	on 06-23-2017
31.	3.36 ft	on 06-05-1988
32.	3.33 ft	on 07-11-1998
33.	3.30 ft	on 05-22-2009
34.	3.26 ft	on 10-24-2000
35.	3.24 ft	on 07-27-2007
36.	3.04 ft	on 08-19-1979
37.	3.02 ft	on 08-25-2006
38.	2.97 ft	on 06-08-2019
39.	2.89 ft	on 05-28-2018
40.	2.66 ft	on 06-05-2008
41.	2.37 ft	on 06-10-2002