Alert archive / Michigan / Beach Hazards Statements in 2016

Beach Hazards Statement 16, NWS Grand Rapids, MI

August 19, 20166 counties in Michigan

NWS Grand Rapids, MI issued this beach hazards statement at Aug 19, 2016, 6:00 PM EDT for 6 counties in Michigan. It took effect at Aug 20, 2016, 2:00 PM EDT. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Aug 19, 2016, 6:00 PM EDT (22:00 UTC)
In effect from
Aug 20, 2016, 2:00 PM EDT
Expired
Aug 22, 2016, 1:00 AM EDT
In force
35 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 22:00 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, 10.0 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 2016-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 385 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 12:00Z on 2016-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939Sfc1 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
385 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1116 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

003 
WHUS43 KGRR 192200
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
600 PM EDT FRI AUG 19 2016

MIZ037-043-050-056-064-071-200600-
/O.NEW.KGRR.BH.S.0016.160820T1800Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
600 PM EDT FRI AUG 19 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SUNDAY NIGHT...

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

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS
  ESPECIALLY SATURDAY AFTERNOON AND EVENING.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOSTLY LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS TODAY INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS WILL INCREASE BY
  SATURDAY AFTERNOON TO 20 TO 30 KNOTS. THIS WILL BUILD WAVES TO 3
  TO 5 FEET. WINDS WILL TURN TO THE WEST NORTHWEST SATURDAY NIGHT
  AND MAY BRIEFLY APPROACH GALE FORCE TO 35 KNOTS. SUNDAY WILL SEE
  A CONTINUATION OF HIGH WINDS AND WAVES.

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
10 follow-up statements
710 
WHUS43 KGRR 192254 CCA
CFWGRR

COASTAL HAZARD MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
654 PM EDT FRI AUG 19 2016

MIZ037-043-050-056-064-071-201100-
/O.COR.KGRR.BH.S.0016.160820T1800Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
654 PM EDT FRI AUG 19 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY AFTERNOON
THROUGH LATE SUNDAY NIGHT...

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

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS
  ESPECIALLY SATURDAY AFTERNOON AND EVENING.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS WILL INCREASE BY
  SATURDAY AFTERNOON TO 20 TO 30 KNOTS. THIS WILL BUILD WAVES TO 3
  TO 5 FEET. WINDS WILL TURN TO THE WEST NORTHWEST SATURDAY NIGHT
  AND MAY BRIEFLY APPROACH GALE FORCE TO 35 KNOTS. WAVES WILL
  BUILD TO 5 TO 8 FEET.  SUNDAY WILL SEE A CONTINUATION OF HIGH
  WINDS AND WAVES.

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
272 
WHUS43 KGRR 200151
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
951 PM EDT FRI AUG 19 2016

MIZ037-043-050-056-064-071-201000-
/O.CON.KGRR.BH.S.0016.160820T1800Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
951 PM EDT FRI AUG 19 2016

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

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS 
  ESPECIALLY SATURDAY AFTERNOON AND EVENING. 

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL 
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS WILL INCREASE 
  BY SATURDAY AFTERNOON TO 20 TO 30 KNOTS. THIS WILL BUILD WAVES 
  TO 3 TO 5 FEET. WINDS WILL TURN TO THE WEST NORTHWEST SATURDAY 
  NIGHT AND MAY BRIEFLY APPROACH GALE FORCE TO 35 KNOTS. WAVES 
  WILL BUILD TO 5 TO 8 FEET. SUNDAY WILL SEE A CONTINUATION OF 
  HIGH WINDS AND WAVES. 

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
346 
WHUS43 KGRR 200750
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
350 AM EDT SAT AUG 20 2016

MIZ037-043-050-056-064-071-201600-
/O.CON.KGRR.BH.S.0016.160820T1800Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
350 AM EDT SAT AUG 20 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM EDT THIS
AFTERNOON THROUGH LATE SUNDAY NIGHT...

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS
  ESPECIALLY TODAY INTO THIS EVENING.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS OF 20 TO 30 KNOTS
  ARE EXPECTED TODAY INTO THIS EARLY THIS EVENING. THIS WILL
  RESULT IN WAVES OF 3 TO 5 FEET TODAY. WINDS WILL TURN TO THE
  WEST NORTHWEST TONIGHT AND MAY BRIEFLY APPROACH GALE FORCE TO
  35 KNOTS. WAVES WILL BUILD TO 5 TO 8 FEET. SUNDAY WILL SEE A
  CONTINUATION OF HIGH WINDS AND WAVES.

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
113 
WHUS43 KGRR 201540
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1140 AM EDT SAT AUG 20 2016

MIZ037-043-050-056-064-071-202345-
/O.CON.KGRR.BH.S.0016.160820T1800Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
1140 AM EDT SAT AUG 20 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE SUNDAY
NIGHT...

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS
  ESPECIALLY THIS AFTERNOON INTO THIS EVENING.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS OF 20 TO 30 KNOTS
  ARE EXPECTED THIS AFTERNOON INTO EARLY THIS EVENING. THIS WILL
  RESULT IN WAVES OF 3 TO 5 FEET TODAY. WINDS WILL TURN TO THE
  WEST NORTHWEST TONIGHT AND MAY BRIEFLY APPROACH GALE FORCE TO 35
  KNOTS. WAVES WILL BUILD TO 5 TO 9 FEET. SUNDAY WILL SEE A
  CONTINUATION OF HIGH WINDS AND WAVES.

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
051 
WHUS43 KGRR 201922
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
322 PM EDT SAT AUG 20 2016

MIZ037-043-050-056-064-071-210330-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
322 PM EDT SAT AUG 20 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE SUNDAY
NIGHT...

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

* STRONG STRUCTURAL CURRENTS EXPECTED ON SOUTH FACING PIERS
  ESPECIALLY THIS EVENING.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND. SOUTH WINDS TO 30 KNOTS ARE
  EXPECTED THROUGH EARLY THIS EVENING. THIS WILL RESULT IN WAVES
  OF 3 TO 5 FEET. WINDS WILL TURN TO THE WEST NORTHWEST TONIGHT
  AND MAY BRIEFLY APPROACH GALE FORCE TO 35 KNOTS. WAVES WILL
  BUILD TO 5 TO 9 FEET. SUNDAY WILL SEE NORTHWEST WINDS TO 30
  KNOTS WITH WAVES OF 4 TO 6 FEET..

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
310 
WHUS43 KGRR 210112
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
912 PM EDT SAT AUG 20 2016

MIZ037-043-050-056-064-071-210915-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
912 PM EDT SAT AUG 20 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE SUNDAY
NIGHT...

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

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED. MOST LIKELY ON SUNDAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  IMPACT LAKE MICHIGAN THIS WEEKEND.  WEST NORTHWEST WINDS MAY
  BRIEFLY APPROACH GALE FORCE TO 35 KNOTS TONIGHT. WAVES WILL
  BUILD TO 5 TO 9 FEET. SUNDAY WILL SEE NORTHWEST
  WINDS TO 30 KNOTS WITH WAVES OF 4 TO 6 FEET..

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
528 
WHUS43 KGRR 210731
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
331 AM EDT SUN AUG 21 2016

MIZ037-043-050-056-064-071-211545-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
331 AM EDT SUN AUG 21 2016

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

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

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED TODAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  CONTINUE TO IMPACT LAKE MICHIGAN EVEN AS IT SLOWLY MOVES AWAY
  FROM THE AREA TODAY. NORTHWEST WINDS TO 30 KNOTS THIS MORNING
  WILL BUILD WAVES TO 7 TO 11 FEET. WINDS WILL SLOWLY DECREASE BY
  MID AFTERNOON INTO TONIGHT TO 10 TO 20 KNOTS AFTER MIDNIGHT.
  THAT WILL ALLOW WAVES TO SUBSIDE TO UNDER 3 FEET BY MID MORNING
  MONDAY.

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
270 
WHUS43 KGRR 211439
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1039 AM EDT SUN AUG 21 2016

MIZ037-043-050-056-064-071-212245-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
1039 AM EDT SUN AUG 21 2016

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

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

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS EXPECTED TODAY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...AN UNUSUALLY STRONG STORM WILL
  CONTINUE TO IMPACT LAKE MICHIGAN EVEN AS IT SLOWLY MOVES AWAY
  FROM THE AREA TODAY. NORTHWEST WINDS 15 TO 25 KNOTS THIS MORNING
  WILL BUILD WAVES TO 6 TO 9 FEET. WINDS WILL SLOWLY DECREASE BY
  MID AFTERNOON INTO TONIGHT TO 10 TO 15 KNOTS AFTER MIDNIGHT.
  THAT WILL ALLOW WAVES TO SUBSIDE TO UNDER 3 FEET BY MID MORNING
  MONDAY.

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.

&&

$$

63

WEATHER.GOV/GRR
989 
WHUS43 KGRR 212002
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
402 PM EDT SUN AUG 21 2016

MIZ037-043-050-056-064-071-220415-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
402 PM EDT SUN AUG 21 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 AM EDT
MONDAY...

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

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS POSSIBLE THIS EVENING.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...A STORM WILL CONTINUE TO IMPACT
  LAKE MICHIGAN AS IT SLOWLY MOVES AWAY FROM THE AREA TONIGHT.
  NORTHWEST WINDS 10 TO 20 KNOTS THIS EVENING WILL SLOWLY DECREASE TO
  10 TO 15 KNOTS AFTER MIDNIGHT. THAT WILL ALLOW WAVES TO SUBSIDE
  TO UNDER 3 FEET BY MID MORNING MONDAY.

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.

&&

$$

63

WEATHER.GOV/GRR
292 
WHUS43 KGRR 220256
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1056 PM EDT SUN AUG 21 2016

MIZ037-043-050-056-064-071-220500-
/O.CON.KGRR.BH.S.0016.000000T0000Z-160822T0500Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
1056 PM EDT SUN AUG 21 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 1 AM EDT
MONDAY...

* HIGH WAVES...STRONG CURRENTS AND DANGEROUS SWIMMING CONDITIONS
  EXPECTED EARLY TONIGHT.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS POSSIBLE EARLY.

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

BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

SOUTH BEACH IN SOUTH HAVEN...
GRAND HAVEN STATE PARK...

* OVERVIEW/POTENTIAL IMPACTS...NORTHWEST WINDS 10 TO 15 KNOTS WILL
  ALLOW WAVES TO SUBSIDE TO UNDER 3 FEET BY MONDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HIGH WAVE ACTION MAKES SWIMMING DIFFICULT AND CAN TIRE EVEN A
STRONG SWIMMER QUICKLY.

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.

&&

$$


WEATHER.GOV/GRR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 9:15 PM EDTRiver Flood AdvisoryGRRKalamazoo36 hr
Aug 19, 6:04 PM EDTSmall Craft AdvisoryGRR55 hr

Nearby

Beach Hazards Statements in Michigan, 2016Every beach hazards statement in 2016

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.