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Clear Lake at Lakeport

Highest listed crest 11.51 ftFlood stage 9.0 ft35 crests since 1914

The Clear Lake at Lakeport crested above flood stage 7 times among the 35 crests the National Weather Service lists from 1914 to 2025. The highest, 11.51 ft on February 24, 1998, was minor flooding, 2.51 feet above flood stage.

The gauge

Highest listed crest
11.51 ft
February 24, 1998
Flood stage
9.0 ft
Major flooding from 12.0 ft
Crests at major
0
7 above flood stage
Most recent flood crest
March 2, 2019
9.96 ft, minor flooding
Location
Lake County
California

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Clear Lake at Lakeport
Action stage8.010Feb 16, 2025The level at which the NWS or its partners begin to take action
Flood stage (minor)9.07Mar 2, 2019Minimal or no property damage, but possibly some public threat
Moderate flood stage11.90—Some inundation of structures and roads near the stream
Major flood stage12.00—Extensive inundation of structures and roads

Every listed crest

35 crests from 1914 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Clear Lake at Lakeport, 1914 to 2025 24681012ft Flood stage 9.0 ftMajor 12.0 ft Jan 28, 1914: 11.09 ft, minor floodingJan 3, 1983: 11.34 ft, minor floodingFeb 2, 1986: 11.34 ft, minor floodingFeb 26, 1993: 8.48 ft, action stageJan 31, 1995: 8.89 ft, action stageJan 4, 1997: 7.94 ft, below flood stageFeb 24, 1998: 11.51 ft, minor floodingMar 25, 1999: 7.87 ft, below flood stageMar 13, 2001: 5.10 ft, below flood stageJan 9, 2002: 5.95 ft, below flood stageApr 13, 2003: 7.79 ft, below flood stageJan 9, 2004: 3.84 ft, below flood stageFeb 27, 2004: 8.87 ft, action stageMay 21, 2005: 7.86 ft, below flood stageJan 4, 2006: 8.15 ft, action stageMar 7, 2006: 8.27 ft, action stageApr 5, 2006: 8.46 ft, action stageMay 10, 2006: 7.83 ft, below flood stageMar 2, 2007: 5.76 ft, below flood stageFeb 25, 2008: 6.56 ft, below flood stageFeb 9, 2009: 5.38 ft, below flood stageMar 29, 2009: 4.19 ft, below flood stageMar 28, 2011: 9.40 ft, minor floodingMar 26, 2012: 4.00 ft, below flood stageApr 30, 2012: 5.96 ft, below flood stageDec 28, 2012: 5.76 ft, below flood stageApr 13, 2014: 2.51 ft, below flood stageMar 21, 2016: 7.91 ft, below flood stageJan 25, 2017: 8.60 ft, action stageFeb 22, 2017: 10.63 ft, minor floodingApr 20, 2018: 5.07 ft, below flood stageMar 2, 2019: 9.96 ft, minor floodingMar 21, 2023: 8.47 ft, action stageFeb 22, 2024: 8.49 ft, action stageFeb 16, 2025: 8.39 ft, action stage Highest, 11.51 ft, Feb 24, 1998 192019401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Clear Lake at Lakeport 1910s: 1 1920s: 0 1930s: 0 1940s: 0 1950s: 0 1960s: 0 1970s: 0 1980s: 2 1990s: 1 2000s: 0 2010s: 3 3 2020s: 0 1910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. 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.
  2. 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

Highest listed crests, Clear Lake at Lakeport
1Feb 24, 199811.51+2.51Minor—
2Jan 3, 198311.34+2.34Minor—
3Feb 2, 198611.34+2.34Minor—
4Jan 28, 191411.09+2.09Minor—
5Feb 22, 201710.63+1.63Minor—
6Mar 2, 20199.96+0.96Minor—
7Mar 28, 20119.40+0.40Minor—
8Jan 31, 19958.89−0.11Action—
9Feb 27, 20048.87−0.13Action—
10Jan 25, 20178.60−0.40Action—
11Feb 22, 20248.49−0.51Action—
12Feb 26, 19938.48−0.52Action—
13Mar 21, 20238.47−0.53Action—
14Apr 5, 20068.46−0.54Action—
15Feb 16, 20258.39−0.61Action—
16Mar 7, 20068.27−0.73Action—
17Jan 4, 20068.15−0.85Action—
18Jan 4, 19977.94−1.06Below flood stage—
19Mar 21, 20167.91−1.09Below flood stage—
20Mar 25, 19997.87−1.13Below flood stage—
21May 21, 20057.86−1.14Below flood stage—
22May 10, 20067.83−1.17Below flood stage—
23Apr 13, 20037.79−1.21Below flood stage—
24Feb 25, 20086.56−2.44Below flood stage—
25Apr 30, 20125.96−3.04Below flood stage—
26Jan 9, 20025.95−3.05Below flood stage—
27Mar 2, 20075.76−3.24Below flood stage—
28Dec 28, 20125.76−3.24Below flood stage—
29Feb 9, 20095.38−3.62Below flood stage—
30Mar 13, 20015.10−3.90Below flood stage—
31Apr 20, 20185.07−3.93Below flood stage—
32Mar 29, 20094.19−4.81Below flood stage—
33Mar 26, 20124.00−5.00Below flood stage—
34Jan 9, 20043.84−5.16Below flood stage—
35Apr 13, 20142.51−6.49Below flood stage—

Lake County: every hazard · River floods across the country · California

NOAA National Water Prediction Service, gauge CLKC1, 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.