Alert archive / Michigan / Beach Hazards Statements in 2017

Beach Hazards Statement 13, NWS Grand Rapids, MI

August 11, 20176 counties in Michigan

NWS Grand Rapids, MI issued this beach hazards statement at Aug 11, 2017, 7:59 AM EDT for 6 counties in Michigan. It took effect at Aug 12, 2017, 12:00 AM EDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Aug 11, 2017, 7:59 AM EDT (11:59 UTC)
In effect from
Aug 12, 2017, 12:00 AM EDT
Expired
Aug 13, 2017, 2:00 AM EDT
In force
26 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 12:01 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 00:00Z, 12.0 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 00:00Z on 2017-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 647 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2017-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
647 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
958 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

988 
WHUS43 KGRR 111159
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
759 AM EDT FRI AUG 11 2017

MIZ037-043-050-112000-
/O.NEW.KGRR.BH.S.0013.170812T0400Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
759 AM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY 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 GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... 

  MUSKEGON STATE PARK... 
  MEARS STATE PARK IN PENTWATER... 
  STEARNS PARK IN LUDINGTON. 

 
* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 25
  MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE BEGINNING
  AFTER MIDNIGHT TONIGHT. WAVES WILL SUBSIDE TOWARDS SUNSET ON
  SATURDAY. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO
  SWIM ON SATURDAY GIVEN THE WAVES WILL BE COMING IN OUT OF THE
  NORTH. 

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.

&&

$$

MIZ056-064-071-112000-
/O.NEW.KGRR.BH.S.0013.170812T1000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
759 AM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING
THROUGH LATE SATURDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT FROM SATURDAY MORNING
THROUGH LATE SATURDAY NIGHT. 

* 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 INCLUDE... 

  NORTH BEACH IN SOUTH HAVEN... 
  HOLLAND STATE PARK... 
 
* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 25
  MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE BEGINNING
  LATE TONIGHT. WAVES WILL SUBSIDE LATE SATURDAY NIGHT. NORTH 
  SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM ON 
  SATURDAY GIVEN THE WAVES WILL BE COMING IN OUT OF THE NORTH. 

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
7 follow-up statements
930 
WHUS43 KGRR 111505
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1105 AM EDT FRI AUG 11 2017

MIZ037-043-050-112315-
/O.CON.KGRR.BH.S.0013.170812T0400Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
1105 AM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE TONIGHT
THROUGH SATURDAY 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 GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

 MUSKEGON STATE PARK...   MEARS STATE PARK IN PENTWATER...  
STEARNS PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE 
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 
  25 MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE 
  BEGINNING AFTER MIDNIGHT TONIGHT. WAVES WILL SUBSIDE TOWARDS 
  SUNSET ON SATURDAY. NORTH SIDES OF NORTH PIERS WILL BE 
  DANGEROUS PLACES TO SWIM ON SATURDAY GIVEN THE WAVES WILL BE 
  COMING IN OUT OF THE NORTH. 

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.

&&

$$

MIZ056-064-071-112315-
/O.CON.KGRR.BH.S.0013.170812T1000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
1105 AM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SATURDAY
MORNING THROUGH LATE SATURDAY NIGHT...

* 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 INCLUDE...

 NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE 
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 
  25 MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE 
  BEGINNING LATE TONIGHT. WAVES WILL SUBSIDE LATE SATURDAY 
  NIGHT. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO 
  SWIM ON SATURDAY GIVEN THE WAVES WILL BE COMING IN OUT OF THE 
  NORTH. 

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
102 
WHUS43 KGRR 112034
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
434 PM EDT FRI AUG 11 2017

MIZ037-043-050-120445-
/O.CON.KGRR.BH.S.0013.170812T0400Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
434 PM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MIDNIGHT EDT
TONIGHT THROUGH SATURDAY 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 GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

MUSKEGON STATE PARK...   MEARS STATE PARK IN PENTWATER...
STEARNS PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE 
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 
  25 MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE 
  BEGINNING AFTER MIDNIGHT TONIGHT. WAVES WILL SUBSIDE TOWARDS 
  SUNSET ON SATURDAY. NORTH SIDES OF NORTH PIERS WILL BE 
  DANGEROUS PLACES TO SWIM ON SATURDAY GIVEN THE WAVES WILL BE 
  COMING IN OUT OF THE NORTH. 

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.

&&

$$

MIZ056-064-071-120445-
/O.CON.KGRR.BH.S.0013.170812T1000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
434 PM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SATURDAY
MORNING THROUGH LATE SATURDAY NIGHT...

* 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 INCLUDE...

NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHERLY WINDS WILL INCREASE 
  BEHIND A COLD FRONT TONIGHT AND CONTINUE INTO SATURDAY. 15 TO 
  25 MPH WINDS WILL BUILD WAVES INTO THE 3 TO 6 FOOT RANGE 
  BEGINNING LATE TONIGHT. WAVES WILL SUBSIDE LATE SATURDAY 
  NIGHT. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO 
  SWIM ON SATURDAY GIVEN THE WAVES WILL BE COMING IN OUT OF THE 
  NORTH. 

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
416 
WHUS43 KGRR 120222
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1022 PM EDT FRI AUG 11 2017

MIZ037-043-050-121030-
/O.CON.KGRR.BH.S.0013.170812T0400Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
1022 PM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
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 GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

MUSKEGON STATE PARK...   MEARS STATE PARK IN PENTWATER... STEARNS
PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 15 TO 25 MPH WILL
  RESULT IN 3 TO 6 FOOT WAVES BEGINNING EARLY SATURDAY MORNING. 
  WAVES WILL SUBSIDE TOWARDS SUNSET ON SATURDAY. NORTH SIDES OF 
  NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM ON SATURDAY.

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.

&&

$$

MIZ056-064-071-121030-
/O.CON.KGRR.BH.S.0013.170812T1000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
1022 PM EDT FRI AUG 11 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 AM EDT
SATURDAY THROUGH LATE SATURDAY NIGHT...

* 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 INCLUDE...

NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 15 TO 25 MPH
  WILL RESULT IN 3 TO 6 FOOT WAVES DEVELOPING SATURDAY MORNING.
  WAVES WILL SUBSIDE AFTER SUNSET ON SATURDAY NIGHT. NORTH SIDES 
  OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM ON SATURDAY.

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
495 
WHUS43 KGRR 120812
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
412 AM EDT SAT AUG 12 2017

MIZ037-043-050-121615-
/O.CON.KGRR.BH.S.0013.000000T0000Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
412 AM EDT SAT AUG 12 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 POSSIBLE.

* LOCATION...BEACHES FROM GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

  MUSKEGON STATE PARK... 
  MEARS STATE PARK IN PENTWATER... 
  STEARNS PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH
  WITH HIGHER GUSTS WILL RESULT IN 3 TO 5 FOOT WAVES TODAY. WAVES
  WILL SUBSIDE TOWARDS SUNSET. NORTH SIDES OF NORTH PIERS WILL BE
  DANGEROUS PLACES TO SWIM ON TODAY. 

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.

&&

$$

MIZ056-064-071-121615-
/O.CON.KGRR.BH.S.0013.170812T1000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
412 AM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* 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 INCLUDE...

  NORTH BEACH IN SOUTH HAVEN...   
  HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH
  WILL RESULT IN 3 TO 5 FOOT WAVES TODAY. WAVES WILL SUBSIDE
  TONIGHT. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO
  SWIM ON SATURDAY. 

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
025 
WHUS43 KGRR 121954
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
354 PM EDT SAT AUG 12 2017

MIZ037-043-050-130000-
/O.CON.KGRR.BH.S.0013.000000T0000Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
354 PM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS
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 GRAND HAVEN TO MANISTEE

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

 MUSKEGON STATE PARK...   MEARS STATE PARK IN PENTWATER...  
STEARNS PARK IN LUDINGTON.

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH 
  WITH HIGHER GUSTS WILL RESULT IN 3 TO 5 FOOT WAVES TODAY. 
  WAVES WILL SUBSIDE TOWARDS SUNSET. NORTH SIDES OF NORTH PIERS 
  WILL BE DANGEROUS PLACES TO SWIM ON TODAY. 

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.

&&

$$

MIZ056-064-071-130400-
/O.CON.KGRR.BH.S.0013.000000T0000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
354 PM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 2 AM EDT
SUNDAY...

* 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 INCLUDE...

 NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH
  WILL RESULT IN 4 TO 6 FOOT WAVES TODAY. WAVES WILL SUBSIDE 
  TONIGHT. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES TO 
  SWIM ON SATURDAY. 

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
660 
WHUS43 KGRR 122351
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
751 PM EDT SAT AUG 12 2017

MIZ037-043-050-130100-
/O.CAN.KGRR.BH.S.0013.000000T0000Z-170813T0000Z/
MASON-OCEANA-MUSKEGON-
751 PM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT IS CANCELLED...

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

THE WINDS AND WAVES HAVE RETURNED TO A SAFE HEIGHT.

$$

MIZ056-064-071-130600-
/O.CON.KGRR.BH.S.0013.000000T0000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
751 PM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 2 AM EDT
SUNDAY...

* 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 INCLUDE...

NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH 
  WILL RESULT IN 4 TO 6 FOOT WAVES TODAY. WAVES WILL SUBSIDE 
  TONIGHT. NORTH SIDES OF NORTH PIERS WILL BE DANGEROUS PLACES 
  TO SWIM ON SATURDAY. 

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
700 
WHUS43 KGRR 130138
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
938 PM EDT SAT AUG 12 2017

MIZ056-064-071-130600-
/O.CON.KGRR.BH.S.0013.000000T0000Z-170813T0600Z/
OTTAWA-ALLEGAN-VAN BUREN-
938 PM EDT SAT AUG 12 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 2 AM EDT
SUNDAY...

* 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 INCLUDE...

NORTH BEACH IN SOUTH HAVEN...   HOLLAND STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS OF 10 TO 20 MPH
  WILL DIMINISH TO 5 TO 15 MPH AFTER MIDNIGHT. WAVES OF 3 TO 5
  FEET WILL SUBSIDE TO 1 TO 3 FEET BY DAYBREAK. THE NORTH SIDES 
  OF NORTH PIERS WILL BE DANGEROUS PLACES TO SWIM EARLY TONIGHT.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 8:15 PM EDTSpecial Marine WarningGRR60 min
Aug 10, 8:34 PM EDTSpecial Weather StatementGRROttawa56 min
Aug 10, 9:00 PM EDTSpecial Weather StatementGRRMecosta, Newaygo45 min
Aug 10, 9:23 PM EDTSpecial Weather StatementGRROttawa67 min
Aug 10, 10:04 PM EDTSpecial Weather StatementGRRKent41 min
Aug 10, 11:06 PM EDTSpecial Weather StatementGRRKent39 min
Aug 10, 11:37 PM EDTSpecial Weather StatementGRRKent38 min
Aug 11, 12:48 AM EDTSpecial Weather StatementGRRBarry, Van Buren42 min
Aug 11, 7:53 AM EDTSmall Craft AdvisoryGRR42 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.