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Coastal Storm Impacting the Mid-Atlantic and Northeast; Weekend Rain May Hasten Midwest Flooding

A strengthening storm moving north along the East Coast will continue heavy rain across the Mid-Atlantic into southern New England into Friday while points further north and west will see some locally heavy snow and strong, potentially damaging, winds. In the Midwest, rainfall may worsen ongoing flooding this weekend. In the West, a Pacific front will bring rain and mountain snow Friday. Read More >


Public Information Statement

National Weather Service

1130 AM EDT Mon Mar 26 2018




TO:         Subscribers – Family of Services and NOAA Weather Wire Service and other  

                National Weather Service Partners, Users, and Employees


FROM:  Ray Kruzdlo – Senior Service Hydrologist, National Weather Service, Weather Forecast Office, Mt. Holly/Philadelphia


SUBJECT: Implementation of Blackwells Mills and Bound Brook, New Jersey Flood Inundation Maps and User Interface


On Monday, March 12, 2018, the National Weather Service (NWS) implemented the Blackwells Mills and Bound Brook, New Jersey flood inundation map libraries on the Advanced Hydrologic Prediction Service (AHPS) web portal.


Inundation maps provide information on the spatial extent and depth of flood waters in the vicinity of both NWS river forecast and non-forecast points. Users are able to display flood inundation maps for various levels ranging from minor flooding through and/or above the largest observed flood.


Flood inundation maps are available for the following gage/forecast point.



Included Municipalities

Blackwells Mills

Borough of Millstone

Franklin Township

Hillsboro Township

Montgomery Township

Bound Brook

Borough of Bound Brook

Borough of South Bound Brook

Franklin Township

Bridgewater Township











The inundation libraries are associated with United States Geological Survey (USGS) river gages and NWS forecast points.


Flood inundation maps, combined with river observations and NWS forecasts, enhance the communication of flood risk, provide users with additional information to better mitigate the impacts of flooding, and build more resilient communities.


These flood inundation maps and associated geospatial data (shapefiles) can be accessed through the AHPS portal:

A complete list of flood inundation map locations is online at:


A Users Guide for the flood inundation map web interface is available at:


This set of inundation maps were developed in partnership with the New Jersey Department of Environmental Protection, the New York and Philadelphia Districts of the U.S. Army Corps of Engineers, the New Jersey U.S. Geological Survey, and made online in cooperation with the Federal Emergency Management Agency Region II.


If you have any questions or comments, please contact:


Ray Kruzdlo

National Weather Service Mt. Holly/Philadelphia

Senior Service Hydrologist

Phone: 609-261-6615