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Susquehanna River at Bloomsburg, PA (BMBP1)


Data Type




Inundation Levels
NAVD88 Stage

486.9*36.3*
486.3*35.7*
485.7*35.1*
485.0*34.4*
484.4*33.8*
483.8*33.2*
Record Crest: 32.75 ft
483.132.5
482.231.6
481.430.8
480.029.4
478.828.2

Major Flooding Begins

477.927.3
477.026.4
475.625.0
474.523.9
474.023.4

Moderate Flooding Begins

472.521.9
472.021.4
470.920.3

Minor Flooding Begins

469.418.8
468.017.4

Near Flooding Begins

466.415.8

Below Flooding Begins

* = Extended rating
Weather Forecast Office State College, PA Middle Atlantic River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping
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Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

Current Stage:
3.3 ft at 06/16/2019 12:15:00 UTC
Selected Inundation
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
What is UTC time? Map Help

Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Gauge Information Collapse

Map Overlays

Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 22
Flood Stage: 19
Action Stage: 16
Low Stage (in feet): 0

Historic Crests
(1) 32.75 ft on 09/09/2011
(2) 32.70 ft on 03/09/1904
(3) 31.20 ft on 06/25/1972
(4) 28.64 ft on 06/28/2006
(5) 28.20 ft on 03/18/1865
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 22.74 ft on 08/15/2018
(2) 32.75 ft on 09/09/2011
(3) 22.57 ft on 03/12/2011
(4) 28.64 ft on 06/28/2006
(5) 25.09 ft on 04/04/2005
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Site-specific information:

The purpose of a flood forecast inundation map is to communicate flood risk based on best available information at the time of map development. This flood forecast inundation map has been compiled using the best information available and is believed to be accurate; however, its preparation required many assumptions. Actual conditions during a flood event may vary from those modeled in the map. The limits of flooding shown should only be used as a guideline for emergency planning and response actions. Actual areas inundated will depend on specific flooding conditions.

The risk of flooding behind flood risk management (FRM) structures (such as levees, floodwalls, closures, etc.) depends on many factors that cannot be entirely predicted in advance. These factors include whether the FRM structure overtops, length of time the structure overtops, and whether the overtopping leads to breach formation.

Two distinct approaches to mapping flooding behind FRM structures have been applied to best address the uncertainty, documented flood risk management systems and undocumented flood risk management systems. No specific level of protection is implied for any FRM structure depicted on these maps.

The mapping is based on the PASDA ground elevation data from 2006-2008.

Documented Flood Risk Management Structures (red lines) – Includes Autoneum FRM project. Area behind the FRM structures is not shown as being flooded until the structure is over-topped.

Documented Flood Risk Management Risk Area (yellow shaded area) – Shows the areas with flood risk reduced by documented flood risk management structures

Undocumented Flood Risk Management Structures (orange lines) – Includes Kawneer FRM project.  Area behind FRM structures is shown as flooded, although the structure may provide some level of flood risk reduction

Undocumented Flood Risk Management Risk Area (pale orange shaded area) – Shows rough approximation of FRM area that would have flood risk reducted by the undocumented flood risk management structure if it functions properly

The detailed project report can be found here

If you have questions related to any of the flood risk management/levee projects in Columbia County, call Eric Stahley, Columbia County Resiliency Office, at 570 389-9146 Ext 9.

Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.

Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
39.5 Flood waters begin to reach the Rupert Drive Bridge in Catawissa.
36.5 FEMA 0.2% Annual Chance Flood Level (500-year flood).
32.8 Flood of record from Tropical Storm Lee in 2011.
32.3 Flood of record from Hurricane Agnes in 1972.
32 Bloomsburg high school is affected by flood waters.
30 Most areas south of 10th Street and west of Railroad Street are affected by high water. Flood waters inundate more than 25 percent of Bloomsburg.
29.5 FEMA 1% Annual Chance Flood Level (100-year flood).
28 A large part of Bloomsburg south of 10th Street and west of Railroad Street is affected by high water.
26 Much of the runway at the airport is inundated. High water begins to affect the sewage treatment plant and the race track at the fairgrounds.
24 Much of the fairgrounds, as well as adjacent areas, are affected by high water. High water also begins to affect the runway at the airport.
22.5 FEMA 10% Annual Chance Flood Level (10-year flood).
22 A number of homes located between the fairgrounds and the river are affected by high water. Several buildings at the airport are also affected.
20 High water affects the fairgrounds and the surrounding area.
19 High water affects homes along River Road.
Photos
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream
Other Data Sources Collapse
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
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Page last modified: 5-Mar-2019 5:40 PM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.