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Coastal Flood Advisory

Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
229 AM EDT Fri Apr 19 2019

Southern Baltimore-
229 AM EDT Fri Apr 19 2019


The National Weather Service in Baltimore MD/Washington has
issued a Coastal Flood Advisory, which is in effect until 11 AM
EDT this morning.

* LOCATIONS...Shoreline in Southern Baltimore County and the
  City of Baltimore.

* TIDAL DEPARTURE...Near 1.5 feet above normal.

* TIMING...Around the time of high tide. High tide at Fort McHenry
  is at 7:13 AM, and high tide at Bowley Bar is at 8:29 AM.

* IMPACTS...Flooding is expected at the end of Thames Street in
  Baltimore. Water also is expected to cover the promenade at the
  dragon boat dock in the Inner Harbor. Minor flooding is also
  expected in the Bowley`s Quarters area, and minor shoreline
  inundation up to one foot above ground is possible elsewhere.


A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.


Forecast tides are referenced to mean lower low water
(MLLW) and mean higher high water (MHHW) unless
otherwise noted. Time of high total tide is
approximate to nearest hour. Total tide combines the
normal tide and departure from normal. Flood impact
is based on the total tide and waves where applicable.

NW Branch Patapsco River at Baltimore MD
MLLW Categories - Minor 3.0 ft, Moderate 5.0 ft, Major 6.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 3.3 ft, Major 4.3 ft

             Total      Total    Departure
 Day/Time    Tide       Tide     from Norm   Waves    Flood
            ft MLLW    ft MHHW       ft       ft      Impact
 --------  ---------  ---------  ---------  -------  --------
 19/07 AM     3.1        1.4        1.3       1.0     Minor
 19/07 PM     2.8        1.1        1.5       1.0      None
 20/08 AM     3.5        1.8        1.7       1.0     Minor
 20/08 PM     2.6        0.9        1.3       1.0      None
 21/09 AM     2.9        1.2        1.0       1.0      None
 21/09 PM     1.9        0.2        0.7       0.5      None

Chesapeake Bay at Bowleys Quarters
MLLW Categories - Minor 3.0 ft, Moderate 3.8 ft, Major 5.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.1 ft, Major 3.3 ft

             Total      Total    Departure
 Day/Time    Tide       Tide     from Norm   Waves    Flood
            ft MLLW    ft MHHW       ft       ft      Impact
 --------  ---------  ---------  ---------  -------  --------
 19/08 AM     3.0        1.3        1.3       1.0     Minor
 19/08 PM     2.8        1.1        1.6       2.0      None
 20/09 AM     3.5        1.8        1.7       1.0     Minor
 20/09 PM     2.5        0.8        1.3       1.0      None
 21/09 AM     2.7        1.0        0.9       1.0      None
 21/10 PM     1.7        0.0        0.6       0.5      None



Flash Flood Watch

Flood Watch
National Weather Service Baltimore MD/Washington DC
900 PM EDT Thu Apr 18 2019

District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel-
Charles-Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Clarke-Prince William/Manassas/Manassas Park-
Fairfax-Arlington/Falls Church/Alexandria-Stafford-
Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-Berkeley-Jefferson-
Including the cities of Washington, Hagerstown, Frederick,
Ballenger Creek, Eldersburg, Westminster, Reisterstown,
Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton,
College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie,
Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton,
St. Charles, Waldorf, Germantown, Damascus, Bethesda, Rockville,
Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City,
Jarrettsville, Aberdeen, Berryville, Dale City, Manassas,
Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale,
Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria,
Falls Church, Falmouth, Warrenton, Turnbull, Purcellville,
Leesburg, Ashburn, Sterling, Martinsburg, Charles Town,
and Shepherdstown
900 PM EDT Thu Apr 18 2019


The Flash Flood Watch continues for

* Portions of Maryland, The District of Columbia, Virginia, and
  panhandle West Virginia, including the following areas, in
  Maryland, Anne Arundel, Carroll, Central and Southeast Howard,
  Central and Southeast Montgomery, Charles, Frederick MD,
  Northern Baltimore, Northwest Harford, Northwest Howard,
  Northwest Montgomery, Prince Georges, Southeast Harford,
  Southern Baltimore, and Washington. The District of Columbia.
  In Virginia, Arlington/Falls Church/Alexandria, Clarke,
  Eastern Loudoun, Fairfax, Northern Fauquier, Prince
  William/Manassas/Manassas Park, Southern Fauquier, Stafford,
  and Western Loudoun. In panhandle West Virginia, Berkeley and

* From Friday afternoon through late Friday night

* Showers and thunderstorms with heavy rain are expected to
  overspread the region by Friday afternoon and continue through
  Friday evening before departing late Friday night. Repetitive
  storms and multiple rounds of heavy rain may result in rainfall
  amounts which could exceed 3 inches locally. Flash flooding is
  possible, particularly in the urban areas.


A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.



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