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whus43 kgrr 290745

lakeshore hazard message
national weather service grand rapids mi
345 am edt fri aug 29 2014

mason-oceana-muskegon-ottawa-allegan-van buren-
345 am edt fri aug 29 2014

...beach hazards statement in effect from this evening through
saturday evening...

the national weather service in grand rapids has issued a beach
hazards statement for dangerous swimming conditions...which is in
effect from this evening through saturday evening. 

* high wave action... strong currents and dangerous swimming 
  conditions expected for tonight and saturday.

* strong structural currents expected.

* strong longshore currents expected.

* rip currents possible.

* location...beaches from st. joseph to manistee.

beaches with particularly dangerous conditions saturday

  south beach in south haven... 
  grand haven state park... 
  pere marquette park in muskegon.

* overview/potential impacts...winds will increase today...
  especially north of whitehall. waves will build a bit today when
  there is a moderate risk of swim hazards. a high risk of swim
  hazards will develop tonight and saturday as winds and waves
  increase a bit more. 

precautionary/preparedness actions...

high wave action makes swimming difficult and can tire even a
strong swimmer quickly. 

structural currents form along piers where longshore currents and
wave action flow into the structure. structural currents can
sweep you out into deeper water along the pier structure.

a longshore current is a lake current that moves parallel to
shore. longshore currents can be strong enough to prevent
swimmers from being able to keep their feet on the bottom...
making it difficult to return to shore.

rip currents are powerful channels of water flowing quickly away
from shore...which occur most often at low spots or breaks in
sandbars. rip currents can sweep you into deeper water.

please visit the following website to share your thoughts on the
new beach hazards statement...



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