Middle Fork Feather River near Portola

Highest listed crest 4,854.42 ftFlood stage 4,852.5 ft1 crests since 2023

The Middle Fork Feather River near Portola crested above flood stage 1 time among the 1 crests the National Weather Service lists from 2023 to 2023. The highest, 4,854.42 ft on March 15, 2023, was moderate flooding, 1.92 feet above flood stage.

The gauge

Highest listed crest
4,854.42 ft
March 15, 2023; 8,285 cubic feet per second
Flood stage
4,852.5 ft
Major flooding from 4,855.5 ft
Crests at major
0
1 above flood stage
Most recent flood crest
March 15, 2023
4,854.42 ft, moderate flooding
Location
Plumas County
California

Flood stages

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

Flood categories, Middle Fork Feather River near Portola
Action stage4,851.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)4,852.50—Minimal or no property damage, but possibly some public threat
Moderate flood stage4,853.51Mar 15, 2023Some inundation of structures and roads near the stream
Major flood stage4,855.50—Extensive inundation of structures and roads

Every listed crest

1 crests from 2023 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Middle Fork Feather River near Portola, 2023 to 2023 48524853485448554856ft Flood stage 4,852.5 ftMajor 4,855.5 ft Mar 15, 2023: 4,854.42 ft, moderate flooding; 8,285 cubic feet per second Highest, 4,854.42 ft, Mar 15, 2023 20252030
  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. 12 crests measured on an earlier gauge datum are left out: 4,854.11 ft on Jan 21, 1969; 4,852.65 ft on Jan 25, 1970; 4,853.58 ft on Mar 27, 1971; 4,851.73 ft on Mar 31, 1974; 4,851.31 ft on Mar 27, 1975; 4,851.30 ft on Jan 17, 1978; and more.

Highest crests

Highest listed crests, Middle Fork Feather River near Portola
1Mar 15, 20234,854.42+1.92Moderate8,285

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

NOAA National Water Prediction Service, gauge MFTC1, 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.