Alert archive / Michigan / Beach Hazards Statements in 2017

Beach Hazards Statement 14, NWS Grand Rapids, MI

August 16, 20176 counties in Michigan

NWS Grand Rapids, MI issued this beach hazards statement at Aug 16, 2017, 4:02 PM EDT for 6 counties in Michigan. It took effect at Aug 17, 2017, 12:00 PM EDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Aug 16, 2017, 4:02 PM EDT (20:02 UTC)
In effect from
Aug 17, 2017, 12:00 PM EDT
Expired
Aug 18, 2017, 6:47 PM EDT
In force
31 hr
Issued by
NWS Grand Rapids, MI

Counties Allegan County, MI, Mason County, MI, Muskegon County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 60 km from the middle of the area, began a volume at 20:02 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 214 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2017-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2017-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

889 
WHUS43 KGRR 162002
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
402 PM EDT WED AUG 16 2017

MIZ037-043-050-056-170415-
/O.NEW.KGRR.BH.S.0014.170817T1600Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-
402 PM EDT WED AUG 16 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING. 

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM HOLLAND TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... 

  GRAND HAVEN STATE PARK... 
  PERE MARQUETTE PARK IN MUSKEGON.

* OVERVIEW/POTENTIAL IMPACTS... AFTER A NIGHT WITH LIGHT WINDS,
  THE WINDS WILL PICKUP TOWARD DAYBREAK THURSDAY. SOUTH WINDS BY
  AFTERNOON WILL BE INCREASING TO AROUND 25 KNOTS. THIS WILL CAUSE
  WAVES TO BUILD TO 3 TO 5 FEET. STRONG STRUCTURAL AND LONGSHORE
  CURRENTS WILL DEVELOP NORTH OF HOLLAND. SOUTH FACING SOUTH PIERS
  WILL BECOME PARTICULARLY DANGEROUS. AS WINDS SHIFT TO THE WEST
  LATE THURSDAY NIGHT INTO FRIDAY, RIP CURRENTS BECOME A HIGHER
  THREAT. BY THIS TIME PERIOD, WAVES OF 5 TO 7 FEET ARE EXPECTED.

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
7 follow-up statements
353 
WHUS43 KGRR 170155
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
955 PM EDT WED AUG 16 2017

MIZ037-043-050-056-171000-
/O.CON.KGRR.BH.S.0014.170817T1600Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-
955 PM EDT WED AUG 16 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY
AFTERNOON THROUGH FRIDAY EVENING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM HOLLAND TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

 GRAND HAVEN STATE PARK...   PERE MARQUETTE PARK IN MUSKEGON.

* OVERVIEW/POTENTIAL IMPACTS... AFTER A NIGHT WITH LIGHT WINDS, 
  THE WINDS WILL PICKUP TOWARD DAYBREAK THURSDAY. SOUTH WINDS BY 
  AFTERNOON WILL BE INCREASING TO AROUND 25 KNOTS. THIS WILL 
  CAUSE WAVES TO BUILD TO 3 TO 5 FEET. STRONG STRUCTURAL AND 
  LONGSHORE CURRENTS WILL DEVELOP NORTH OF HOLLAND. SOUTH FACING 
  SOUTH PIERS WILL BECOME PARTICULARLY DANGEROUS. AS WINDS SHIFT 
  TO THE WEST LATE THURSDAY NIGHT INTO FRIDAY, RIP CURRENTS 
  BECOME A HIGHER THREAT. BY THIS TIME PERIOD, WAVES OF 5 TO 8 
  FEET ARE EXPECTED. 

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.

&&

$$

WDM

WEATHER.GOV/GRR
059 
WHUS43 KGRR 170844
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
444 AM EDT THU AUG 17 2017

MIZ064-071-171645-
/O.EXB.KGRR.BH.S.0014.170817T2200Z-170819T0100Z/
ALLEGAN-VAN BUREN-
444 AM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS EVENING THROUGH
FRIDAY EVENING...

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

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

* STRONG STRUCTURAL CURRENTS POSSIBLE.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED.

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

* OVERVIEW/POTENTIAL IMPACTS...SOUTHWEST WINDS WILL INCREASE TO 15
  TO 25 MPH LATER THIS AFTERNOON AND BECOME WEST TONIGHT AND
  FRIDAY. WAVES WILL BUILD TO 2 TO 4 FEET TODAY AND TO 5 TO 8 FEET
  FOR TONIGHT AND FRIDAY. THE RIP CURRENT THREAT WILL INCREASE
  CONSIDERABLY BY TONIGHT AND CONTINUE ON FRIDAY. 

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.

&&

$$

MIZ037-043-050-056-171645-
/O.CON.KGRR.BH.S.0014.170817T1600Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-
444 AM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM NOON EDT TODAY
THROUGH FRIDAY EVENING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM HOLLAND TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS TODAY INCLUDE
  GRAND HAVEN STATE PARK AND PERE MARQUETTE PARK IN MUSKEGON.

* OVERVIEW/POTENTIAL IMPACTS... SOUTH FACING SOUTH PIERS WILL
  BECOME PARTICULARLY DANGEROUS TODAY AS SOUTH WINDS INCREASE TO
  15 TO 25 MPH AND WAVES BUILD TO 3 TO 5 FEET. AS WINDS SHIFT TO
  THE WEST TONIGHT INTO FRIDAY, RIP CURRENTS BECOME A HIGHER
  THREAT. BY THIS TIME PERIOD, WAVES OF 5 TO 8 FEET ARE EXPECTED.

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
083 
WHUS43 KGRR 171949
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
349 PM EDT THU AUG 17 2017

MIZ037-043-050-056-180400-
/O.CON.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-
349 PM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM HOLLAND TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS TODAY INCLUDE 
  GRAND HAVEN STATE PARK AND PERE MARQUETTE PARK IN MUSKEGON. 

* OVERVIEW/POTENTIAL IMPACTS... SOUTH FACING SOUTH PIERS WILL BE
  PARTICULARLY DANGEROUS TODAY WITH SOUTH WINDS OF 15 TO 25 MPH
  AND WAVES OF 3 TO 5 FEET. AS WINDS SHIFT TO THE WEST TONIGHT 
  INTO FRIDAY, RIP CURRENTS BECOME A HIGHER THREAT. BY THIS TIME 
  PERIOD, WAVES OF 5 TO 8 FEET ARE EXPECTED. 

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.

&&

$$

MIZ064-071-180400-
/O.CON.KGRR.BH.S.0014.170817T2200Z-170819T0100Z/
ALLEGAN-VAN BUREN-
349 PM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...

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

* STRONG STRUCTURAL CURRENTS POSSIBLE.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED.

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

* OVERVIEW/POTENTIAL IMPACTS...SOUTHWEST WINDS TO 15 TO 25 MPH
  THIS AFTERNOON WILL BECOME WEST TONIGHT AND FRIDAY. WAVES OF 2
  TO 4 FEET TODAY WILL BUILD TO 5 TO 8 FEET FOR TONIGHT AND 
  FRIDAY. THE RIP CURRENT THREAT WILL INCREASE CONSIDERABLY BY 
  TONIGHT AND CONTINUE ON FRIDAY. 

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
193 
WHUS43 KGRR 180239
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1039 PM EDT THU AUG 17 2017

MIZ037-043-050-056-181045-
/O.CON.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-
1039 PM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM HOLLAND TO MANISTEE.

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS ON FRIDAY INCLUDE
  STEARNS PARK IN LUDINGTON...MEARS STATE PARK IN PENTWATER AND
  MUSKEGON STATE PARK.

* OVERVIEW/POTENTIAL IMPACTS... WEST WINDS OF 15 T0 25 KNOTS WILL
  BECOMING NORTHWEST LATE TONIGHT AND CONTINUE INTO FRIDAY. WAVES
  OF 5 TO 7 FEET ARE EXPECTED BOTH TONIGHT AND ON FRIDAY. NORTH
  SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM ON FRIDAY.  

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.

&&

$$

MIZ064-071-181045-
/O.CON.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
ALLEGAN-VAN BUREN-
1039 PM EDT THU AUG 17 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
EVENING...

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

* STRONG STRUCTURAL CURRENTS POSSIBLE.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED.

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

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

* OVERVIEW/POTENTIAL IMPACTS...WEST WINDS OF 15 T0 25 KNOTS WILL
  BECOMING NORTHWEST LATE TONIGHT AND CONTINUE INTO FRIDAY. WAVES
  OF 5 TO 7 FEET ARE EXPECTED BOTH TONIGHT AND ON FRIDAY. NORTH
  SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM ON FRIDAY. 

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
626 
WHUS43 KGRR 180803
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
403 AM EDT FRI AUG 18 2017

MIZ037-043-050-056-064-071-181615-
/O.CON.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
403 AM EDT FRI AUG 18 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* 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 TODAY INCLUDE 
  STEARNS PARK IN LUDINGTON... MEARS STATE PARK IN PENTWATER... 
  MUSKEGON STATE PARK...HOLLAND STATE PARK...AND NORTH BEACH IN 
  SOUTH HAVEN. 

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 15 T0 25 MPH 
  AND WAVES OF 5 TO 7 FEET ARE EXPECTED TODAY. NORTH SIDES OF 
  NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM.

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
471 
WHUS43 KGRR 181504
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1104 AM EDT FRI AUG 18 2017

MIZ037-043-050-056-064-071-182315-
/O.CON.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
1104 AM EDT FRI AUG 18 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

* 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 TODAY INCLUDE 
  STEARNS PARK IN LUDINGTON... MEARS STATE PARK IN PENTWATER... 
  MUSKEGON STATE PARK...HOLLAND STATE PARK...AND NORTH BEACH IN 
  SOUTH HAVEN. 

* OVERVIEW/POTENTIAL IMPACTS...WEST WINDS OF 15 T0 25 MPH AND
  WAVES OF 4 TO 7 FEET ARE EXPECTED FOR THE REST OF TODAY. NORTH 
  SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM. 

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
387 
WHUS43 KGRR 182247
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
647 PM EDT FRI AUG 18 2017

MIZ037-043-050-056-064-071-190000-
/O.CAN.KGRR.BH.S.0014.000000T0000Z-170819T0100Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
647 PM EDT FRI AUG 18 2017

...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS CANCELLED THE
BEACH HAZARDS STATEMENT. 

WINDS AND WAVES CONTINUE TO DIMINISH. THIS TREND WILL CONTINUE
THROUGH TONIGHT.

$$


WEATHER.GOV/GRR

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 4:07 PM EDTSmall Craft AdvisoryGRR53 hr

Nearby

Beach Hazards Statements in Michigan, 2017Every beach hazards statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.