Great Salt Lake above Great Salt Lake
Highest listed crest 4,211.80 ftFlood stage 4,204.0 ft6 crests since 1984
The Great Salt Lake above Great Salt Lake crested at major flood stage 5 times among the 6 crests the National Weather Service lists from 1984 to 1999. The highest, 4,211.80 ft on June 1, 1986, was major flooding, 7.80 feet above flood stage.
The gauge
- Highest listed crest
- 4,211.80 ft
- June 1, 1986
- Flood stage
- 4,204.0 ft
- Major flooding from 4,208.0 ft
- Crests at major
- 5
- 3rd of 40 gauges in Utah
- Most recent flood crest
- August 1, 1999
- 4,204.50 ft, minor flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 4,203.0 | 0 | — |
| Flood stage (minor) | 4,204.0 | 1 | Aug 1, 1999 |
| Moderate flood stage | 4,206.0 | 0 | — |
| Major flood stage | 4,208.0 | 5 | Mar 15, 1988 |
Every listed crest
6 crests from 1984 to 1999. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Jun 1, 1986 | 4,211.80 | +7.80 | Major |
| 2 | Apr 1, 1987 | 4,211.00 | +7.00 | Major |
| 3 | Aug 15, 1985 | 4,209.55 | +5.55 | Major |
| 4 | Mar 15, 1988 | 4,209.55 | +5.55 | Major |
| 5 | Aug 1, 1984 | 4,209.25 | +5.25 | Major |
| 6 | Aug 1, 1999 | 4,204.50 | +0.50 | Minor |
Other gauges in Box Elder County
| Collinston | 8.70 ft, Feb 20, 1986 | 1 |
| Corinne | 17.50 ft, May 19, 1984 | 1 |
Box Elder County: every hazard · River floods across the country · Utah
NOAA National Water Prediction Service, gauge GSLU1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.