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Severn River at Annapolis (IN MLLW)

Highest listed crest 7.16 ftFlood stage 2.6 ft36 crests since 1933

The Severn River at Annapolis (IN MLLW) crested at major flood stage 3 times among the 36 crests the National Weather Service lists from 1933 to 2025. The highest, 7.16 ft on September 19, 2003, was major flooding, 4.56 feet above flood stage.

The gauge

Highest listed crest
7.16 ft
September 19, 2003
Flood stage
2.6 ft
Major flooding from 5.0 ft
Crests at major
3
24th of 108 gauges in Maryland
Most recent flood crest
October 30, 2025
4.27 ft, moderate flooding
Location
Anne Arundel County
Near Annapolis (1.6 mi), Bowie (14.0 mi)
Identifiers
NWS APAM2
No USGS station

Flood stages

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

Flood categories, Severn River at Annapolis (IN MLLW)
Action stage2.02Dec 5, 2017The level at which the NWS or its partners begin to take action
Flood stage (minor)2.64Dec 21, 2018Minimal or no property damage, but possibly some public threat
Moderate flood stage3.327Oct 30, 2025Some inundation of structures and roads near the stream
Major flood stage5.03Jan 10, 2024Extensive inundation of structures and roads

Every listed crest

36 crests from 1933 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Severn River at Annapolis (IN MLLW), 1933 to 2025 2468ft Flood stage 2.6 ftMajor 5.0 ft Aug 23, 1933: 6.17 ft, major floodingOct 15, 1954: 4.78 ft, moderate floodingAug 13, 1955: 4.98 ft, moderate floodingMar 8, 1962: 4.27 ft, moderate floodingSep 6, 1979: 4.56 ft, moderate floodingNov 4, 1985: 4.56 ft, moderate floodingSep 7, 1996: 4.84 ft, moderate floodingSep 19, 2003: 7.16 ft, major floodingOct 1, 2010: 4.24 ft, moderate floodingOct 4, 2014: 4.08 ft, moderate floodingNov 5, 2017: 2.82 ft, minor floodingNov 9, 2017: 3.22 ft, minor floodingNov 16, 2017: 2.56 ft, action stageDec 5, 2017: 2.50 ft, action stageMar 7, 2018: 3.54 ft, moderate floodingApr 16, 2018: 3.41 ft, moderate floodingMay 29, 2018: 2.83 ft, minor floodingSep 9, 2018: 3.61 ft, moderate floodingSep 21, 2018: 3.63 ft, moderate floodingNov 27, 2018: 3.39 ft, moderate floodingDec 21, 2018: 3.25 ft, minor floodingAug 27, 2019: 3.50 ft, moderate floodingSep 8, 2019: 3.47 ft, moderate floodingSep 14, 2019: 3.35 ft, moderate floodingOct 12, 2019: 4.15 ft, moderate floodingNov 1, 2019: 3.54 ft, moderate floodingNov 19, 2019: 3.43 ft, moderate floodingApr 5, 2020: 3.33 ft, moderate floodingApr 13, 2020: 3.56 ft, moderate floodingApr 30, 2020: 3.72 ft, moderate floodingOct 30, 2021: 4.90 ft, moderate floodingDec 16, 2022: 3.33 ft, moderate floodingJun 5, 2023: 3.42 ft, moderate floodingSep 24, 2023: 3.75 ft, moderate floodingJan 10, 2024: 5.10 ft, major floodingOct 30, 2025: 4.27 ft, moderate flooding Highest, 7.16 ft, Sep 19, 2003 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Severn River at Annapolis (IN MLLW) 1930s: 1 1940s: 0 1950s: 2 1960s: 1 1970s: 1 1980s: 1 1990s: 1 2000s: 1 2010s: 17 17 2020s: 9 1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  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, Severn River at Annapolis (IN MLLW)
1Sep 19, 20037.16+4.56Major—
2Aug 23, 19336.17+3.57Major—
3Jan 10, 20245.10+2.50Major—
4Aug 13, 19554.98+2.38Moderate—
5Oct 30, 20214.90+2.30Moderate—
6Sep 7, 19964.84+2.24Moderate—
7Oct 15, 19544.78+2.18Moderate—
8Sep 6, 19794.56+1.96Moderate—
9Nov 4, 19854.56+1.96Moderate—
10Mar 8, 19624.27+1.67Moderate—
11Oct 30, 20254.27+1.67Moderate—
12Oct 1, 20104.24+1.64Moderate—
13Oct 12, 20194.15+1.55Moderate—
14Oct 4, 20144.08+1.48Moderate—
15Sep 24, 20233.75+1.15Moderate—
16Apr 30, 20203.72+1.12Moderate—
17Sep 21, 20183.63+1.03Moderate—
18Sep 9, 20183.61+1.01Moderate—
19Apr 13, 20203.56+0.96Moderate—
20Mar 7, 20183.54+0.94Moderate—
21Nov 1, 20193.54+0.94Moderate—
22Aug 27, 20193.50+0.90Moderate—
23Sep 8, 20193.47+0.87Moderate—
24Nov 19, 20193.43+0.83Moderate—
25Jun 5, 20233.42+0.82Moderate—
26Apr 16, 20183.41+0.81Moderate—
27Nov 27, 20183.39+0.79Moderate—
28Sep 14, 20193.35+0.75Moderate—
29Apr 5, 20203.33+0.73Moderate—
30Dec 16, 20223.33+0.73Moderate—
31Dec 21, 20183.25+0.65Minor—
32Nov 9, 20173.22+0.62Minor—
33May 29, 20182.83+0.23Minor—
34Nov 5, 20172.82+0.22Minor—
35Nov 16, 20172.56−0.04Action—
36Dec 5, 20172.50−0.10Action—

Other gauges in Anne Arundel County

Flood gauges in Anne Arundel County
Bowie19.027.90 ft, Jun 22, 19720
Glen Burnie5.07.61 ft, Aug 12, 20140

Anne Arundel County: every hazard · River floods across the country · Maryland

NOAA National Water Prediction Service, gauge APAM2, 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.