Coastal Flood Warnings/Watches/Statements
Issued by NWS Sterling, VA

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000
WHUS41 KLWX 230101
CFWLWX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
901 PM EDT FRI SEP 22 2017

MDZ014-230215-
/O.CAN.KLWX.CF.Y.0085.000000T0000Z-170923T0200Z/
ANNE ARUNDEL-
901 PM EDT FRI SEP 22 2017

...COASTAL FLOOD ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON DC HAS
CANCELLED THE COASTAL FLOOD ADVISORY.

HIGH TIDE HAS PASSED. THE THREAT FOR FLOODING HAS ENDED.

&&

$$

DCZ001-VAZ054-230500-
/O.CON.KLWX.CF.Y.0085.000000T0000Z-170923T0500Z/
DISTRICT OF COLUMBIA-ARLINGTON/FALLS CHURCH/ALEXANDRIA-
901 PM EDT FRI SEP 22 2017

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT
SATURDAY...

* LOCATIONS...SHORELINE IN THE DISTRICT OF COLUMBIA AND
  ARLINGTON COUNTY AND THE CITY OF ALEXANDRIA.

* TIDAL DEPARTURE...AROUND 1 FOOT ABOVE NORMAL.

* TIMING...AROUND THE TIME OF HIGH TIDE. THE NEXT HIGH TIDE AT
  WASHINGTON CHANNEL IS AT 10:32 PM. THE NEXT HIGH TIDE AT
  ALEXANDRIA IS AT 10:50 PM.

* IMPACTS...SHORELINE INUNDATION IS EXPECTED ALONG PORTIONS OF
  THE SEAWALL ADJACENT TO OHIO DRIVE AND THE HAINS POINT LOOP
  ROAD. WATER IS EXPECTED TO APPROACH THE CURB NEAR THE
  INTERSECTION OF KING STREET AND STRAND STREET IN ALEXANDRIA.
  MINOR SHORELINE INUNDATION IS POSSIBLE ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

MDZ017-230915-
/O.CON.KLWX.CF.Y.0085.000000T0000Z-170923T1100Z/
ST. MARYS-
901 PM EDT FRI SEP 22 2017

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT
SATURDAY...

* LOCATIONS...SHORELINE IN ST. MARYS COUNTY.

* TIDAL DEPARTURE...1 TO 1.5 FEET ABOVE NORMAL.

* TIMING...AROUND THE TIME OF HIGH TIDE. THE NEXT HIGH TIDE AT
  POINT LOOKOUT IS AT 3:50 AM EARLY SATURDAY MORNING. THE NEXT
  HIGH TIDE AT COLTONS POINT IS AT 5:39 AM EARLY SATURDAY
  MORNING. THE NEXT HIGH TIDE AT PINEY POINT IS AT 5:03 AM EARLY
  SATURDAY MORNING.

* IMPACTS...WATER IS EXPECTED TO GO OVER A PORTION OF THE
  BULKHEAD NEAR THE STRAITS POINT BRIDGE, AND ALSO COVER YARDS
  IN THE ST GEORGES CREEK AND ST MARYS RIVER AREAS. MINOR
  SHORELINE INUNDATION IS POSSIBLE ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

&&

STRAITS POINT MD
MLLW CATEGORIES - MINOR 2.7 FT, MODERATE 3.5 FT, MAJOR 5.0 FT
MHHW CATEGORIES - MINOR 1.1 FT, MODERATE 1.9 FT, MAJOR 3.4 FT

             TOTAL      TOTAL    DEPARTURE
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD
            FT MLLW    FT MHHW       FT       FT      IMPACT
 --------  ---------  ---------  ---------  -------  --------
 23/05 AM     3.1        1.5        1.5       0.5     MINOR
 23/05 PM     3.1        1.5        1.4       0.5     MINOR
 24/05 AM     2.8        1.2        1.3       0.5     MINOR
 24/05 PM     2.8        1.2        1.2       0.5     MINOR
 25/06 AM     2.6        1.0        1.1       0.5      NONE

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.

$$

$$

DH


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