Patapsco River near Catonsville
Flood levels
Official flood levels at this gauge: action stage begins at 18.0 ft; minor flooding begins at 20.0 ft; moderate flooding begins at 25.0 ft.
| Action stage | 18.0 ft |
|---|---|
| Minor flooding | 20.0 ft |
| Moderate flooding | 25.0 ft |
Highest recorded crests
- 27.1 ft on May 27, 2018 (historic crest)
- 27.1 ft on Jul 31, 2016 (historic crest)
- 25.2 ft on Sep 7, 2011 (historic crest)
- 23.8 ft on Apr 30, 2014 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 20.0 ft | River Road begins to flood. |
|---|---|
| 25.0 ft | Significant flooding is occurring along the river. |
Forecast office: NWS Sterling · River Forecast Center: Middle Atlantic River Forecast Center.
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Nearby stations and gauges
- Patapsco River at Ellicott City NWS gauge · 2.0 mi
- at Stonecrest Hills NWS gauge · 2.2 mi
- Hudson Branch near Rogers Avenue at Ellicott City NWS gauge · 2.7 mi
- Patapsco River near Elkridge at Patapsco Valley State Park NWS gauge · 2.8 mi
- Dead Run near Catonsville NWS gauge · 3.2 mi
- Maidens Choice Run at Westgate in Baltimore NWS gauge · 3.7 mi