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

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WHUS43 KGRR 021907
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
307 PM EDT SUN AUG 2 2015

MIZ037-043-050-056-064-071-030315-
/O.CON.KGRR.BH.S.0015.000000T0000Z-150803T1200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
307 PM EDT SUN AUG 2 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY
MORNING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM ST. JOSEPH TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS LATE TONIGHT
  AND SUNDAY INCLUDE...SOUTH BEACH IN SOUTH HAVEN... GRAND HAVEN
  STATE PARK... PERE MARQUETTE PARK IN MUSKEGON.

* OVERVIEW/POTENTIAL IMPACTS...SOUTHWEST WINDS 25 TO 30 MPH WITH
  HIGHER GUSTS POSSIBLE. WAVES WILL BUILD TO 3 TO 6 FEET WITH
  LOCALLY HIGHER WAVES LIKELY.

 A SQUALL LINE IS EXPECTED TO MOVE THROUGH THE AREA THIS
EVENING. THIS WILL HAVE THE POTENTIAL TO BRING VERY STRONG
WINDS AND EXTREMELY DANGEROUS CONDITIONS FOR A PERIOD THIS
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.

&&

$$

NJJ

WEATHER.GOV/GRR



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