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

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WHUS43 KGRR 061616
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1216 PM EDT MON JUL 6 2015

MIZ056-064-071-070030-
/O.EXT.KGRR.BH.S.0009.150707T0600Z-150707T2200Z/
OTTAWA-ALLEGAN-VAN BUREN-
1216 PM EDT MON JUL 6 2015

...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM LATE TONIGHT
THROUGH TUESDAY AFTERNOON...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS POSSIBLE.

* LOCATION...BEACHES FROM ST. JOSEPH TO GRAND HAVEN.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS LATE TONIGHT AND
  ON TUESDAY INCLUDE...
  NORTH BEACH IN SOUTH HAVEN...
  HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTH WINDS WILL INCREASE LATE
  TONIGHT AND CONTINUE INTO TUESDAY. WINDS WILL REACH THE 15 TO 25
  MPH RANGE WITH SOME GUSTS TOWARDS 30 MPH POSSIBLE IN THIS TIME
  FRAME. WAVES WILL BUILD INTO THE 4 TO 6 RANGE WITH THE POTENTIAL
  FOR SOME HIGHER WAVES AS WELL.

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.

&&

$$

MIZ037-043-050-070030-
/O.CON.KGRR.BH.S.0009.150706T1800Z-150707T2200Z/
MASON-OCEANA-MUSKEGON-
1216 PM EDT MON JUL 6 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH TUESDAY
AFTERNOON...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS POSSIBLE.

* LOCATION...BEACHES FROM GRAND HAVEN TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS THIS AFTERNOON
  AND EVENING IN SOUTHERLY FLOW INCLUDE...PERE MARQUETTE PARK IN
  MUSKEGON. ON TUESDAY WITH NORTH WINDS IN PLACE PARTICULARLY
  DANGEROUS BEACHES INCLUDE STEARNS PARK IN LUDINGTON...MEARS
  STATE PARK IN PENTWATER AND MUSKEGON STATE PARK.

* OVERVIEW/POTENTIAL IMPACTS...SOUTH WINDS OF 15 TO 25 KNOTS THIS
  AFTERNOON THEN SWING TO THE NORTH BEHIND THE COLD FRONT TUESDAY
  MORNING. A HIGH SWIM RISK IS EXPECTED THIS AFTERNOON AND EVENING
  NORTH OF GRAND HAVEN AND IN ALL AREAS ON TUESDAY AS THE WINDS
  SWING AROUND TO THE NORTH. WAVES OF 3 TO 5 FEET ARE EXPECTED
  BOTH THIS AFTERNOON AND EVENING AND AGAIN ON TUESDAY.

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.

&&

$$

DUKE

WEATHER.GOV/GRR



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