Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Gunpowder Falls at Hoffmanville

Highest listed crest 10.02 ftFlood stage 6.0 ft13 crests since 2003

The Gunpowder Falls at Hoffmanville crested at major flood stage 1 time among the 13 crests the National Weather Service lists from 2003 to 2025. The highest, 10.02 ft on August 28, 2009, was major flooding, 4.02 feet above flood stage. 1 other gauge on the Gunpowder Falls crested above flood stage within a week of it.

The gauge

Highest listed crest
10.02 ft
August 28, 2009; 6,780 cubic feet per second
Flood stage
6.0 ft
Major flooding from 10.0 ft
Crests at major
1
32nd of 108 gauges in Maryland
Most recent flood crest
July 10, 2025
6.01 ft, minor flooding
Location
Baltimore County
Near Hanover (13.7 mi), Westminster (14.2 mi)

Flood stages

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

Flood categories, Gunpowder Falls at Hoffmanville
Action stage5.08Oct 11, 2013The level at which the NWS or its partners begin to take action
Flood stage (minor)6.04Jul 10, 2025Minimal or no property damage, but possibly some public threat
Moderate flood stage8.00—Some inundation of structures and roads near the stream
Major flood stage10.01Aug 28, 2009Extensive inundation of structures and roads

Every listed crest

13 crests from 2003 to 2025. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Gunpowder Falls at Hoffmanville, 2003 to 2025 4681012ft Flood stage 6.0 ftMajor 10.0 ft Sep 23, 2003: 5.06 ft, action stage; 1,200 cubic feet per secondDec 11, 2003: 5.16 ft, action stage; 1,260 cubic feet per secondJul 8, 2005: 5.91 ft, action stage; 1,740 cubic feet per secondMar 2, 2007: 5.06 ft, action stage; 1,200 cubic feet per secondApr 20, 2008: 5.74 ft, action stage; 1,860 cubic feet per secondAug 28, 2009: 10.02 ft, major flooding; 6,780 cubic feet per secondSep 8, 2011: 6.93 ft, minor floodingNov 23, 2011: 5.13 ft, action stage; 1,400 cubic feet per secondOct 29, 2012: 5.97 ft, action stage; 2,070 cubic feet per secondOct 11, 2013: 5.19 ft, action stage; 1,400 cubic feet per secondJul 24, 2018: 7.69 ft, minor flooding; 3,740 cubic feet per secondAug 4, 2018: 6.14 ft, minor flooding; 2,229 cubic feet per secondJul 10, 2025: 6.01 ft, minor flooding; 2,109 cubic feet per second Highest, 10.02 ft, Aug 28, 2009 20052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Gunpowder Falls at Hoffmanville 2000s: 1 2010s: 3 3 2020s: 1 2000s2010s2020s
  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, Gunpowder Falls at Hoffmanville
1Aug 28, 200910.02+4.02Major6,780
2Jul 24, 20187.69+1.69Minor3,740
3Sep 8, 20116.93+0.93Minor—
4Aug 4, 20186.14+0.14Minor2,229
5Jul 10, 20256.01+0.01Minor2,109
6Oct 29, 20125.97−0.03Action2,070
7Jul 8, 20055.91−0.09Action1,740
8Apr 20, 20085.74−0.26Action1,860
9Oct 11, 20135.19−0.81Action1,400
10Dec 11, 20035.16−0.84Action1,260
11Nov 23, 20115.13−0.87Action1,400
12Sep 23, 20035.06−0.94Action1,200
13Mar 2, 20075.06−0.94Action1,200

The worst floods along the Gunpowder Falls

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

August 28, 2009: 10.02 ft here, major flooding

  • GlencoeMD · Aug 29, 2009 · 8.76 ft · Minor

July 24, 2018: 7.69 ft here, minor flooding

  • GlencoeMD · Jul 25, 2018 · 14.56 ft · Major

September 8, 2011: 6.93 ft here, minor flooding

  • GlencoeMD · Sep 8, 2011 · 16.50 ft · Major · its highest
  • ParktonMD · Sep 8, 2011 · 11.62 ft · Moderate · its highest

Gauges on the Gunpowder Falls

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

Flood gauges on the Gunpowder Falls
Hoffmanville this gaugeMD6.010.02 ft, Aug 28, 20091
ParktonMD10.011.62 ft, Sep 8, 20110
GlencoeMD7.016.50 ft, Sep 8, 20119

Other gauges in Baltimore County

Flood gauges in Baltimore County
Broadmoor4.06.08 ft, Jun 22, 19720
Cockeysville9.012.10 ft, Jul 1, 19847
Bentley Springs5.57.30 ft, Jul 25, 20180
Woodlawn10.012.24 ft, Jul 30, 20160
Franklintown10.012.50 ft, Jun 22, 19720
Woodlawn9.012.16 ft, Jul 30, 20160
Catonsville9.011.29 ft, Jul 30, 20160
Arbutus7.013.25 ft, Aug 26, 19991
Beckleysville7.07.27 ft, Jul 24, 20180
Beckleysville6.07.85 ft, Jul 23, 20180
Glencoe7.016.50 ft, Sep 8, 20119
Parkton10.011.62 ft, Sep 8, 20110
Villa Nova11.021.50 ft, Jun 22, 19721
White Marsh6.013.51 ft, Oct 19, 20240
Sorrento17.018.11 ft, Jun 22, 19720
Blue Mount8.518.54 ft, Jun 22, 19724
Laurel Brook7.511.40 ft, Jul 1, 19840
Glen Arm10.011.15 ft, Jul 14, 20150
Ellicott City122.5124.78 ft, May 27, 20180
Hollofield11.031.30 ft, Jun 22, 19721
Catonsville20.027.15 ft, May 27, 20180
Dover8.510.86 ft, Jul 24, 20180
Rockdale7.07.83 ft, Jul 31, 20160
Woodlawn7.08.15 ft, Jul 30, 20160
Middle River10.813.06 ft, Aug 7, 20180
Idlewylde9.010.87 ft, Aug 14, 20120
Western Run8.026.00 ft, Jun 22, 19723
White Marsh11.018.49 ft, Aug 1, 19711

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

NOAA National Water Prediction Service, gauge GFHM2, 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.