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Rio Grande at Alamosa

Critical Stages
7' - Action
9' - Flood
11' - Moderate
13' - Major

Latest Observation

Updated: 3:30 PM MST 12/15/25

Status: No Flooding

Stage: 3.4 ft

Flow: 0.285 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
3:30 PM 12/15 3.4 0.285
3:15 PM 12/15 3.41 0.287
3:00 PM 12/15 3.42 0.289
2:45 PM 12/15 3.43 0.291
2:30 PM 12/15 3.44 0.293
2:15 PM 12/15 3.44 0.293
2:00 PM 12/15 3.45 0.294
1:45 PM 12/15 3.44 0.293
1:30 PM 12/15 3.44 0.293
1:15 PM 12/15 3.44 0.293
1:00 PM 12/15 3.44 0.293
12:45 PM 12/15 3.44 0.293
12:30 PM 12/15 3.44 0.293
12:15 PM 12/15 3.43 0.291
12:00 PM 12/15 3.43 0.291
11:45 AM 12/15 3.43 0.291
11:30 AM 12/15 3.42 0.289
11:15 AM 12/15 3.42 0.289
11:00 AM 12/15 3.42 0.289
10:45 AM 12/15 3.41 0.287
10:30 AM 12/15 3.41 0.287
10:15 AM 12/15 3.4 0.285
10:00 AM 12/15 3.4 0.285
9:45 AM 12/15 3.4 0.285
9:30 AM 12/15 3.4 0.285
9:15 AM 12/15 3.4 0.285
9:00 AM 12/15 3.39 0.283
8:45 AM 12/15 3.39 0.283
8:30 AM 12/15 3.39 0.283
8:15 AM 12/15 3.39 0.283
Hydrograph for Rio Grande at Alamosa
15' - Major flooding. Flood waters move across Stadium Drive and into homes near Adams State College
14.5' - Major flooding. Flood waters move into homes along Lakewood and Riverwood Drives in northeast Alamosa
14' - Major flooding. Flood waters inundate apartments along River Drive in northeast Alamosa
13.5' - Major flooding. Water reaches base of Highway 160 Bridge and spills into homes and park near the bridge
13' - Major flooding. Water reaches base of State Avenue Bridge.
11.5' - Moderate flooding. Water overtops low spots in levee protecting Alamosa and begins to flow into Cattails Golf Course and nearby homes
11' - Moderate flooding. Moderate agricultural flooding. Water begins to overtop low spots in levee protecting Alamosa.
9' - Minor flooding. Minor agricultural flooding in low lying areas along the river
7' - Action Stage. The river is bankfull along portions of the reach from 8 miles upstream to 1 mile downstream.
DateStage (ft)
Jun 20, 1949 10.62
May 23, 1948 9.97
Jun 5, 1948 9.87
May 18, 1944 9.32
Jul 3, 1995 8.84
Jun 15, 2019 8.75
Sep 24, 1997 7.63
Oct 14, 1997 7.5
May 25, 2005 7.19
Jun 5, 2008 6.45
Sep 29, 2013 5.54
Mar 28, 2012 5.17
May 9, 2009 5.13
Jun 18, 1921 -0.99

Data provided by the National Weather Service.