Long Green Creek at Glen Arm
Flood levels
Official flood levels at this gauge: action stage begins at 4.0 ft; minor flooding begins at 7.0 ft; moderate flooding begins at 10.0 ft; major flooding begins at 15.0 ft.
| Action stage | 4.0 ft |
|---|---|
| Minor flooding | 7.0 ft |
| Moderate flooding | 10.0 ft |
| Major flooding | 15.0 ft |
Highest recorded crests
- 6.7 ft on Jul 1, 1984 (historic crest)
- 6.4 ft on Feb 24, 2016 (historic crest)
- 6.4 ft on Nov 16, 2006 (historic crest)
- 6.3 ft on Aug 27, 1978 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 4.0 ft | Water begins to overflow the right bank of the creek but no impacts are observed. |
|---|---|
| 7.0 ft | Water approaches a farm road and Long Green Pike. |
| 9.5 ft | Water reaches Hillrise Avenue. |
| 11.0 ft | Hartley Mill Road begins to flood in spots. |
| 11.5 ft | Glen Arm Road begins to flood. |
| 15.0 ft | Multiple spots on Hartley Mill Road are flooded. |
Forecast office: NWS Sterling · River Forecast Center: Middle Atlantic River Forecast Center.
Long Green Creek at Glen Arm in your pocket
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Nearby stations and gauges
- Little Gunpowder Falls at Laurel Brook NWS gauge · 4.3 mi
- Minebank Run near Glen Arm NWS gauge · 5.2 mi
- Whitemarsh Run near Fullerton NWS gauge · 5.3 mi
- Honeygo Run near White Marsh NWS gauge · 5.5 mi
- Whitemarsh Run at White Marsh NWS gauge · 6.1 mi
- Long Quarter Branch at Lutherville NWS gauge · 6.6 mi