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whus41 klwx 231339
cfwlwx
253 

coastal hazard message
national weather service baltimore md/washington dc
939 am edt sun apr 23 2017


mdz017-231800-
/o.new.klwx.cf.y.0015.170423t1400z-170423t1800z/
st. marys-
939 am edt sun apr 23 2017

...coastal flood advisory in effect until 2 pm edt this
afternoon...

the national weather service in baltimore md/washington dc has
issued a coastal flood advisory, which is in effect until 2 pm
edt this afternoon.

* location...the tidal potomac in st. marys county, maryland

* tidal departure...1 to 1.5 feet above normal

* timing...around the time of high tide today, which is at 109 pm
  edt at colton's point and 1233 pm edt at piney point.

* 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.

&&

&&

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.

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
 --------  ---------  ---------  ---------  -------  --------
 23/12 pm     2.7        1.1        1.2       0.5     minor
 24/01 am     2.8        1.2        1.1       1.0     minor
 24/01 pm     2.8        1.2        1.2       1.0     minor
 25/01 am     3.0        1.4        1.3       1.0     minor
 25/02 pm     3.2        1.6        1.6       1.0     minor
 26/02 am     3.1        1.5        1.3       1.0     minor

$$

$$

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