Mahwah River at Suffern
Flood levels
Official flood levels at this gauge: action stage begins at 4.5 ft; minor flooding begins at 5.0 ft; moderate flooding begins at 7.0 ft; major flooding begins at 10.5 ft.
| Action stage | 4.5 ft |
|---|---|
| Minor flooding | 5.0 ft |
| Moderate flooding | 7.0 ft |
| Major flooding | 10.5 ft |
Highest recorded crests
- 9.7 ft on Sep 16, 1999 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 5.0 ft | Minor flooding on homes along the Mahwah River at Suffern. Minor flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive. |
|---|---|
| 7.0 ft | Moderate flooding along Mahwah River at Suffern communities. Moderate flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive. |
| 10.6 ft | Major flooding along Mahwah River at Suffern. 8 feet of waters into homes basements. Major flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive. |
Forecast office: NWS Upton · River Forecast Center: Middle Atlantic River Forecast Center.
Mahwah River at Suffern in your pocket
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Nearby stations and gauges
- Ramapo River at Ramapo NWS gauge · 2.7 mi
- Ramapo River at Suffern NWS gauge · 2.9 mi
- Ramapo River at Mahwah NWS gauge · 3.8 mi
- Saddle River at Upper Saddle River NWS gauge · 5.8 mi
- Pascack River at Park Ridge NWS gauge · 8.3 mi
- Hackensack River at West Nyack NWS gauge · 8.5 mi