Lehigh River at Bethlehem
Critical Stages
12' - Action
16' - Flood
20' - Moderate
22' - Major
Latest Observation
Updated: 12:30 PM EST 12/9/25
Status: No Flooding
Stage: 1.12 ft
Flow: 0.476 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 7 PM 12/9 | 1.1 | 0.46 |
| 1 AM 12/10 | 1.1 | 0.46 |
| 7 AM 12/10 | 1.1 | 0.46 |
| 1 PM 12/10 | 1.1 | 0.46 |
| 7 PM 12/10 | 1.2 | 0.542 |
| 1 AM 12/11 | 1.3 | 0.633 |
| 7 AM 12/11 | 1.3 | 0.633 |
| 1 PM 12/11 | 1.4 | 0.732 |
| 7 PM 12/11 | 1.3 | 0.633 |
| 1 AM 12/12 | 1.3 | 0.633 |
| 7 AM 12/12 | 1.3 | 0.633 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 12:30 PM 12/9 | 1.12 | 0.476 |
| 12:15 PM 12/9 | 1.12 | 0.476 |
| 12:00 PM 12/9 | 1.12 | 0.476 |
| 11:45 AM 12/9 | 1.12 | 0.476 |
| 11:30 AM 12/9 | 1.13 | 0.484 |
| 11:15 AM 12/9 | 1.13 | 0.484 |
| 11:00 AM 12/9 | 1.13 | 0.484 |
| 10:45 AM 12/9 | 1.13 | 0.484 |
| 10:30 AM 12/9 | 1.14 | 0.492 |
| 10:15 AM 12/9 | 1.14 | 0.492 |
| 10:00 AM 12/9 | 1.14 | 0.492 |
| 9:45 AM 12/9 | 1.14 | 0.492 |
| 9:30 AM 12/9 | 1.14 | 0.492 |
| 9:15 AM 12/9 | 1.14 | 0.492 |
| 9:00 AM 12/9 | 1.15 | 0.5 |
| 8:45 AM 12/9 | 1.15 | 0.5 |
| 8:30 AM 12/9 | 1.15 | 0.5 |
| 8:15 AM 12/9 | 1.16 | 0.508 |
| 8:00 AM 12/9 | 1.16 | 0.508 |
| 7:45 AM 12/9 | 1.16 | 0.508 |
| 7:30 AM 12/9 | 1.16 | 0.508 |
| 7:15 AM 12/9 | 1.16 | 0.508 |
| 7:00 AM 12/9 | 1.17 | 0.517 |
| 6:45 AM 12/9 | 1.17 | 0.517 |
| 6:30 AM 12/9 | 1.17 | 0.517 |
| 6:15 AM 12/9 | 1.18 | 0.525 |
| 6:00 AM 12/9 | 1.18 | 0.525 |
| 5:45 AM 12/9 | 1.18 | 0.525 |
| 5:30 AM 12/9 | 1.18 | 0.525 |
| 5:15 AM 12/9 | 1.18 | 0.525 |
25' -
Levees in the Bethleham area are topped. Major flooding begins.
16' -
Wilson Avenue takes on water.
15.5' -
Sand Island Recreational Area in Bethlehem is flooded.
15' -
The islands in the Allentown area begin to flood.
14' -
Flooding begins upstream in Allentown. Backwater begins to effect the Little Lehigh and Jordan creeks.
| Date | Stage (ft) |
|---|---|
| May 23, 1942 | 25.9 |
| Feb 28, 1902 | 24.9 |
| Aug 19, 1955 | 23.38 |
| Jun 23, 1972 | 20.02 |
| Sep 18, 2004 | 19.7 |
| Sep 2, 2021 | 19.53 |
| Aug 24, 1933 | 18.7 |
| Jul 10, 1935 | 18.53 |
| Jun 28, 2006 | 17.74 |
| Mar 11, 2011 | 17.17 |
| Jan 25, 1979 | 17.12 |
| Mar 12, 1936 | 17.04 |
| Jan 20, 1996 | 16.68 |
| Apr 3, 2005 | 16.06 |
| Jan 28, 1996 | 15.57 |
| Dec 5, 1950 | 15.31 |
| Nov 22, 1952 | 13.75 |
| Dec 2, 1996 | 12.72 |
| Aug 28, 2011 | 11.91 |
| Sep 9, 2011 | 11.45 |
Data provided by the National Weather Service.
