« Back to Upper Montclair Rivers

Mahwah River at Suffern

Critical Stages
4.5' - Action
5' - Flood
7' - Moderate
10.5' - Major

Latest Observation

Updated: 8:30 AM EST 12/6/25

Status: No Flooding

Stage: 1.77 ft

Flow: 0.009 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
8:30 AM 12/6 1.77 0.009
8:15 AM 12/6 1.77 0.009
8:00 AM 12/6 1.77 0.009
7:45 AM 12/6 1.76 0.0087
7:30 AM 12/6 1.77 0.009
7:15 AM 12/6 1.77 0.009
7:00 AM 12/6 1.77 0.009
6:45 AM 12/6 1.76 0.0087
6:30 AM 12/6 1.78 0.0093
6:15 AM 12/6 1.78 0.0093
6:00 AM 12/6 1.78 0.0093
5:45 AM 12/6 1.77 0.009
5:30 AM 12/6 1.78 0.0093
5:15 AM 12/6 1.78 0.0093
5:00 AM 12/6 1.77 0.009
4:45 AM 12/6 1.79 0.0097
4:30 AM 12/6 1.79 0.0097
4:15 AM 12/6 1.77 0.009
4:00 AM 12/6 1.79 0.0097
3:45 AM 12/6 1.78 0.0093
3:30 AM 12/6 1.77 0.009
3:15 AM 12/6 1.78 0.0093
3:00 AM 12/6 1.77 0.009
2:45 AM 12/6 1.78 0.0093
2:30 AM 12/6 1.77 0.009
2:15 AM 12/6 1.77 0.009
2:00 AM 12/6 1.77 0.009
1:45 AM 12/6 1.77 0.009
1:30 AM 12/6 1.77 0.009
1:15 AM 12/6 1.78 0.0093
Hydrograph for Mahwah River at Suffern
10.6' - 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.
7' - 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.
5' - 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.
DateStage (ft)
Sep 16, 1999 9.7

Data provided by the National Weather Service.