NOUS41 KLWX 151349
Public Information Statement
National Weather Service Baltimore MD/Washington DC
949 AM EDT Mon Aug 15 2022
Service Change Notice
National Weather Service Baltimore/Washington
0945 AM Eastern Daylight Monday August 15th, 2022
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
Other NWS partners, users, and employees
From: James E. LEE, Meteorologist in Charge, Weather Forecast
Subject: Changes in Flood Categories for USGS stream gauge Jones
Falls at Sorrento, MD in Baltimore County.
...Changes in Flood Categories on Jones Falls AT Sorrento, MD on
the Moores Branch (SRTM2)...
Effective at 1800 Coordinated Universal Time on 08/11/2022, the National
Weather Service changed the flood category stages for the stream
gage at Jones Falls AT Sorrento, MD on the Moores Branch in
Because of this change, starting on Thursday August 11th, 2022, Flood
Warnings and Flood Statements will reference the new category
levels. This change is part of a recent re-siting of the gauge and
re-evaluation of the flood plain with the United States
The new flood category levels will be as follows:
1. New action stage is 14.0 feet above North American Vertical Datum
of 1988 (NAVD 88). The previous flood stage was 10.0 feet above
2. New flood stage is 17.0 feet above NAVD 88. The previous flood
stage was 13.0 feet above NAVD 88.
3. New moderate flood stage is 19.0 feet above NAVD 88. The
previous moderate flood stage was 15.0 feet above NAVD 88.
4. New major flood stage is 22.0 feet above NAVD 88. The previous
major flood stage was 18.0 feet above NAVD 88.
The National Weather Service welcomes public feedback. If you have
any questions or comments on this change, please contact:
Senior Service Hydrologist
National Weather Service Forecast Office Baltimore/Washington
43858 Weather Service Rd.
Sterling, VA 20166