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Gwynns Falls at Washington Blvd in Baltimore

Highest listed crest 20.03 ftFlood stage 13.0 ft25 crests since 1999

The Gwynns Falls at Washington Blvd in Baltimore crested above flood stage 16 times among the 25 crests the National Weather Service lists from 1999 to 2024. The highest, 20.03 ft on August 26, 1999, was moderate flooding, 7.03 feet above flood stage.

The gauge

Highest listed crest
20.03 ft
August 26, 1999; 23,900 cubic feet per second
Flood stage
13.0 ft
Major flooding from 22.0 ft
Crests at major
0
16 above flood stage
Most recent flood crest
January 10, 2024
13.76 ft, minor flooding
Location
Baltimore city
Near Baltimore (2.9 mi)

Flood stages

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

Flood categories, Gwynns Falls at Washington Blvd in Baltimore
Action stage11.09Aug 12, 2020The level at which the NWS or its partners begin to take action
Flood stage (minor)13.015Jan 10, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage20.01Aug 26, 1999Some inundation of structures and roads near the stream
Major flood stage22.00—Extensive inundation of structures and roads

Every listed crest

25 crests from 1999 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Gwynns Falls at Washington Blvd in Baltimore, 1999 to 2024 10121416182022ft Flood stage 13.0 ftMajor 22.0 ft Jul 22, 1999: 11.03 ft, action stage; 6,390 cubic feet per secondAug 26, 1999: 20.03 ft, moderate flooding; 23,900 cubic feet per secondSep 16, 1999: 13.07 ft, minor flooding; 9,200 cubic feet per secondSep 23, 2003: 14.02 ft, minor flooding; 10,700 cubic feet per secondJul 7, 2004: 17.97 ft, minor flooding; 18,500 cubic feet per secondJul 27, 2004: 13.05 ft, minor flooding; 9,170 cubic feet per secondOct 8, 2005: 11.68 ft, action stage; 7,230 cubic feet per secondJun 25, 2006: 14.87 ft, minor flooding; 12,100 cubic feet per secondJul 6, 2006: 13.07 ft, minor flooding; 9,200 cubic feet per secondNov 16, 2006: 11.92 ft, action stage; 7,550 cubic feet per secondSep 27, 2008: 12.89 ft, action stage; 8,930 cubic feet per secondAug 14, 2011: 12.79 ft, action stage; 8,790 cubic feet per secondSep 7, 2011: 16.40 ft, minor flooding; 14,900 cubic feet per secondAug 26, 2012: 11.41 ft, action stage; 6,870 cubic feet per secondOct 29, 2012: 13.75 ft, minor flooding; 10,300 cubic feet per secondJun 10, 2013: 12.38 ft, action stage; 8,190 cubic feet per secondMay 1, 2014: 15.74 ft, minor flooding; 13,564 cubic feet per secondJun 27, 2015: 12.89 ft, action stage; 8,930 cubic feet per secondJul 31, 2016: 17.72 ft, minor flooding; 17,896 cubic feet per secondMay 27, 2018: 17.09 ft, minor flooding; 16,458 cubic feet per secondJul 22, 2018: 18.30 ft, minor flooding; 19,225 cubic feet per secondSep 1, 2018: 14.08 ft, minor flooding; 10,808 cubic feet per secondAug 12, 2020: 11.81 ft, action stage; 7,400 cubic feet per secondSep 13, 2023: 14.25 ft, minor flooding; 11,085 cubic feet per secondJan 10, 2024: 13.76 ft, minor flooding; 10,296 cubic feet per second Highest, 20.03 ft, Aug 26, 1999 200020052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Gwynns Falls at Washington Blvd in Baltimore 1990s: 2 2000s: 5 2010s: 7 7 2020s: 2 1990s2000s2010s2020s
  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, Gwynns Falls at Washington Blvd in Baltimore
1Aug 26, 199920.03+7.03Moderate23,900
2Jul 22, 201818.30+5.30Minor19,225
3Jul 7, 200417.97+4.97Minor18,500
4Jul 31, 201617.72+4.72Minor17,896
5May 27, 201817.09+4.09Minor16,458
6Sep 7, 201116.40+3.40Minor14,900
7May 1, 201415.74+2.74Minor13,564
8Jun 25, 200614.87+1.87Minor12,100
9Sep 13, 202314.25+1.25Minor11,085
10Sep 1, 201814.08+1.08Minor10,808
11Sep 23, 200314.02+1.02Minor10,700
12Jan 10, 202413.76+0.76Minor10,296
13Oct 29, 201213.75+0.75Minor10,300
14Sep 16, 199913.07+0.07Minor9,200
15Jul 6, 200613.07+0.07Minor9,200
16Jul 27, 200413.05+0.05Minor9,170
17Sep 27, 200812.89−0.11Action8,930
18Jun 27, 201512.89−0.11Action8,930
19Aug 14, 201112.79−0.21Action8,790
20Jun 10, 201312.38−0.62Action8,190
21Nov 16, 200611.92−1.08Action7,550
22Aug 12, 202011.81−1.19Action7,400
23Oct 8, 200511.68−1.32Action7,230
24Aug 26, 201211.41−1.59Action6,870
25Jul 22, 199911.03−1.97Action6,390

The worst floods along the Gwynns Falls

For this gauge's highest crests, the other gauges on the Gwynns Falls that crested above flood stage within a week.

July 22, 2018: 18.30 ft here, minor flooding

July 31, 2016: 17.72 ft here, minor flooding

Gauges on the Gwynns Falls

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Gwynns Falls
Villa NovaMD11.021.50 ft, Jun 22, 19721
Washington Blvd in Baltimore this gaugeMD13.020.03 ft, Aug 26, 19990

Other gauges in Baltimore city

Flood gauges in Baltimore city
Baltimore Harbor3.04.14 ft, Oct 12, 20190
Baltimore/Fort McHenry (IN MLLW)3.49.77 ft, Aug 13, 20254

Baltimore city: every hazard · River floods across the country · Maryland

NOAA National Water Prediction Service, gauge WBGM2, 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.