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East Fork Lewis River near Heisson

Highest listed crest 25.17 ftFlood stage 20.0 ft16 crests since 1988

The East Fork Lewis River near Heisson crested above flood stage 4 times among the 16 crests the National Weather Service lists from 1988 to 2025. The highest, 25.17 ft on February 8, 1996, was minor flooding, 5.17 feet above flood stage.

The gauge

Highest listed crest
25.17 ft
February 8, 1996
Flood stage
20.0 ft
No major stage set
Crests at major
0
4 above flood stage
Most recent flood crest
December 9, 2025
20.34 ft, minor flooding
Location
Clark County
Near Battle Ground (5.5 mi), Ridgefield (10.0 mi)

Flood stages

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

Flood categories, East Fork Lewis River near Heisson
Action stage19.02Dec 27, 1994The level at which the NWS or its partners begin to take action
Flood stage (minor)20.04Dec 9, 2025Minimal or no property damage, but possibly some public threat

Every listed crest

16 crests from 1988 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the East Fork Lewis River near Heisson, 1988 to 2025 161820222426ft Flood stage 20.0 ft Jan 14, 1988: 18.06 ft, below flood stage; 6,580 cubic feet per secondJan 9, 1989: 17.75 ft, below flood stage; 5,860 cubic feet per secondDec 4, 1989: 18.11 ft, below flood stage; 6,520 cubic feet per secondJan 9, 1990: 18.84 ft, below flood stage; 8,000 cubic feet per secondFeb 10, 1990: 18.60 ft, below flood stage; 7,500 cubic feet per secondJan 12, 1991: 17.97 ft, below flood stage; 6,260 cubic feet per secondApr 5, 1991: 19.06 ft, action stage; 8,490 cubic feet per secondDec 6, 1991: 17.36 ft, below flood stage; 5,190 cubic feet per secondMar 23, 1993: 17.96 ft, below flood stage; 6,240 cubic feet per secondJan 5, 1994: 16.19 ft, below flood stage; 3,480 cubic feet per secondOct 31, 1994: 18.94 ft, below flood stage; 8,220 cubic feet per secondNov 30, 1994: 20.52 ft, minor flooding; 12,100 cubic feet per secondDec 27, 1994: 19.15 ft, action stage; 8,650 cubic feet per secondFeb 19, 1995: 20.14 ft, minor flooding; 11,100 cubic feet per secondFeb 8, 1996: 25.17 ft, minor floodingDec 9, 2025: 20.34 ft, minor flooding; 13,890 cubic feet per second Highest, 25.17 ft, Feb 8, 1996 1990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, East Fork Lewis River near Heisson 1980s: 0 1990s: 3 3 2000s: 0 2010s: 0 2020s: 1 1980s1990s2000s2010s2020s
  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.
  3. 48 crests measured on an earlier gauge datum are left out: 18.74 ft on Nov 24, 1964; 18.91 ft on Dec 1, 1964; 21.15 ft on Dec 22, 1964; 20.28 ft on Jan 28, 1965; 18.43 ft on Jan 5, 1966; 19.02 ft on Mar 9, 1966; and more.

Highest crests

Highest listed crests, East Fork Lewis River near Heisson
1Feb 8, 199625.17+5.17Minor—
2Nov 30, 199420.52+0.52Minor12,100
3Dec 9, 202520.34+0.34Minor13,890
4Feb 19, 199520.14+0.14Minor11,100
5Dec 27, 199419.15−0.85Action8,650
6Apr 5, 199119.06−0.94Action8,490
7Oct 31, 199418.94−1.06Below flood stage8,220
8Jan 9, 199018.84−1.16Below flood stage8,000
9Feb 10, 199018.60−1.40Below flood stage7,500
10Dec 4, 198918.11−1.89Below flood stage6,520
11Jan 14, 198818.06−1.94Below flood stage6,580
12Jan 12, 199117.97−2.03Below flood stage6,260
13Mar 23, 199317.96−2.04Below flood stage6,240
14Jan 9, 198917.75−2.25Below flood stage5,860
15Dec 6, 199117.36−2.64Below flood stage5,190
16Jan 5, 199416.19−3.81Below flood stage3,480

Other gauges in Clark County

Flood gauges in Clark County
Vancouver16.033.60 ft, Jun 7, 189415
Washougal14.015.33 ft, Nov 18, 20150

Clark County: every hazard · River floods across the country · Washington

NOAA National Water Prediction Service, gauge HSSW1, 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.