Coastal Flood Warnings/Watches/Statements
Issued by NWS Grand Rapids, MI

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WHUS43 KGRR 240230
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1030 PM EDT SUN JUL 23 2017

MIZ037-043-064-071-241030-
/O.NEW.KGRR.BH.S.0010.170724T0230Z-170725T0000Z/
MASON-OCEANA-ALLEGAN-VAN BUREN-
1030 PM EDT SUN JUL 23 2017

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH MONDAY EVENING...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT THROUGH MONDAY EVENING.

* HIGH WAVE ACTION... STRONG CURRENTS AND DANGEROUS SWIMMING
  CONDITIONS EXPECTED.

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS POSSIBLE.

* LOCATION...BEACHES FROM WHITEHALL NORTH TO MANISTEE AND FROM
  HOLLAND SOUTH TO ST. JOSEPH.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

  FOR NORTH FLOW USE:

  NORTH BEACH IN SOUTH HAVEN...
  MEARS STATE PARK IN PENTWATER...
  STEARNS PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTH WINDS WILL INCREASE TO 15 TO
  25 KNOTS TONIGHT AND CONTINUE INTO MONDAY...WHICH WILL BUILD
  WAVES INTO THE 3 TO 6 FOOT RANGE. THE LARGEST WAVES AND
  STRONGEST CURRENTS ARE EXPECTED NORTH OF WHITEHALL AND SOUTH OF
  HOLLAND. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO
  SWIM THROUGH MONDAY EVENING.

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.

&&

$$

WEATHER.GOV/GRR

DUKE



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