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Chesapeake Bay at Havre de Grace (IN MLLW)

Highest listed crest 6.93 ftFlood stage 4.0 ft42 crests since 2012

The Chesapeake Bay at Havre de Grace (IN MLLW) crested above flood stage 42 times among the 42 crests the National Weather Service lists from 2012 to 2024. The highest, 6.93 ft on January 10, 2024, was moderate flooding, 2.93 feet above flood stage.

The gauge

Highest listed crest
6.93 ft
January 10, 2024
Flood stage
4.0 ft
Major flooding from 7.0 ft
Crests at major
0
42 above flood stage
Most recent flood crest
January 10, 2024
6.93 ft, moderate flooding
Location
Harford County
Near Havre de Grace (1.4 mi), Aberdeen (4.8 mi), Bel Air (13.7 mi)

Flood stages

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

Flood categories, Chesapeake Bay at Havre de Grace (IN MLLW)
Action stage3.50—The level at which the NWS or its partners begin to take action
Flood stage (minor)4.036Apr 13, 2020Minimal or no property damage, but possibly some public threat
Moderate flood stage5.56Jan 10, 2024Some inundation of structures and roads near the stream
Major flood stage7.00—Extensive inundation of structures and roads

Every listed crest

42 crests from 2012 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Chesapeake Bay at Havre de Grace (IN MLLW), 2012 to 2024 4567ft Flood stage 4.0 ftMajor 7.0 ft Oct 30, 2012: 5.84 ft, moderate floodingDec 21, 2012: 5.41 ft, minor floodingMar 10, 2013: 4.22 ft, minor floodingMar 30, 2013: 4.29 ft, minor floodingApr 24, 2013: 4.30 ft, minor floodingAug 31, 2013: 4.10 ft, minor floodingOct 7, 2013: 4.18 ft, minor floodingOct 17, 2013: 4.08 ft, minor floodingApr 30, 2014: 4.79 ft, minor floodingMay 16, 2014: 4.95 ft, minor floodingAug 13, 2014: 4.15 ft, minor floodingSep 11, 2014: 4.36 ft, minor floodingOct 4, 2014: 5.50 ft, moderate floodingApr 20, 2015: 4.30 ft, minor floodingAug 11, 2015: 4.68 ft, minor floodingOct 6, 2015: 4.07 ft, minor floodingOct 29, 2015: 4.73 ft, minor floodingNov 13, 2015: 4.24 ft, minor floodingJan 11, 2016: 4.82 ft, minor floodingFeb 10, 2016: 4.57 ft, minor floodingFeb 25, 2016: 5.37 ft, minor floodingMay 16, 2016: 4.18 ft, minor floodingApr 6, 2017: 4.64 ft, minor floodingMay 6, 2017: 4.47 ft, minor floodingMay 26, 2017: 4.08 ft, minor floodingAug 31, 2017: 4.20 ft, minor floodingSep 21, 2017: 4.09 ft, minor floodingOct 24, 2017: 4.53 ft, minor floodingNov 6, 2017: 4.05 ft, minor floodingNov 10, 2017: 4.39 ft, minor floodingMar 7, 2018: 4.80 ft, minor floodingApr 16, 2018: 4.64 ft, minor floodingJun 12, 2018: 4.14 ft, minor floodingNov 27, 2018: 4.73 ft, minor floodingDec 22, 2018: 4.38 ft, minor floodingOct 13, 2019: 5.07 ft, minor floodingNov 1, 2019: 5.50 ft, moderate floodingApr 5, 2020: 4.50 ft, minor floodingApr 13, 2020: 5.33 ft, minor floodingApr 30, 2020: 5.65 ft, moderate floodingOct 30, 2021: 5.59 ft, moderate floodingJan 10, 2024: 6.93 ft, moderate flooding Highest, 6.93 ft, Jan 10, 2024 201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Chesapeake Bay at Havre de Grace (IN MLLW) 2010s: 37 37 2020s: 5 2010s2020s
  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, Chesapeake Bay at Havre de Grace (IN MLLW)
1Jan 10, 20246.93+2.93Moderate—
2Oct 30, 20125.84+1.84Moderate—
3Apr 30, 20205.65+1.65Moderate—
4Oct 30, 20215.59+1.59Moderate—
5Oct 4, 20145.50+1.50Moderate—
6Nov 1, 20195.50+1.50Moderate—
7Dec 21, 20125.41+1.41Minor—
8Feb 25, 20165.37+1.37Minor—
9Apr 13, 20205.33+1.33Minor—
10Oct 13, 20195.07+1.07Minor—
11May 16, 20144.95+0.95Minor—
12Jan 11, 20164.82+0.82Minor—
13Mar 7, 20184.80+0.80Minor—
14Apr 30, 20144.79+0.79Minor—
15Oct 29, 20154.73+0.73Minor—
16Nov 27, 20184.73+0.73Minor—
17Aug 11, 20154.68+0.68Minor—
18Apr 6, 20174.64+0.64Minor—
19Apr 16, 20184.64+0.64Minor—
20Feb 10, 20164.57+0.57Minor—
21Oct 24, 20174.53+0.53Minor—
22Apr 5, 20204.50+0.50Minor—
23May 6, 20174.47+0.47Minor—
24Nov 10, 20174.39+0.39Minor—
25Dec 22, 20184.38+0.38Minor—
26Sep 11, 20144.36+0.36Minor—
27Apr 24, 20134.30+0.30Minor—
28Apr 20, 20154.30+0.30Minor—
29Mar 30, 20134.29+0.29Minor—
30Nov 13, 20154.24+0.24Minor—
31Mar 10, 20134.22+0.22Minor—
32Aug 31, 20174.20+0.20Minor—
33Oct 7, 20134.18+0.18Minor—
34May 16, 20164.18+0.18Minor—
35Aug 13, 20144.15+0.15Minor—
36Jun 12, 20184.14+0.14Minor—
37Aug 31, 20134.10+0.10Minor—
38Sep 21, 20174.09+0.09Minor—
39Oct 17, 20134.08+0.08Minor—
40May 26, 20174.08+0.08Minor—
41Oct 6, 20154.07+0.07Minor—
42Nov 6, 20174.05+0.05Minor—

Other gauges in Harford County

Flood gauges in Harford County
Bel Air9.011.15 ft, Aug 20, 20160
Rocks State Park11.017.70 ft, Aug 23, 19334
Darlington10.013.98 ft, Apr 30, 20140
Belcamp9.011.11 ft, Aug 31, 20180
Bel Air6.06.73 ft, Jun 3, 20210
Conowingo Dam23.536.83 ft, Jun 24, 19725
Bel Air9.011.35 ft, Jun 28, 20060
Benson9.011.60 ft, Jun 22, 19720

Harford County: every hazard · River floods across the country · Maryland

NOAA National Water Prediction Service, gauge HDGM2, 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.