Alert archive / Michigan / Beach Hazards Statements in 2017

Beach Hazards Statement 5, NWS Grand Rapids, MI

June 21, 20176 counties in Michigan

NWS Grand Rapids, MI issued this beach hazards statement at Jun 21, 2017, 8:04 PM EDT for 6 counties in Michigan. It took effect at Jun 22, 2017, 6:00 AM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jun 21, 2017, 8:04 PM EDT (00:04 UTC)
In effect from
Jun 22, 2017, 6:00 AM EDT
Expired
Jun 22, 2017, 11:21 AM EDT
In force
5 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 00:04 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, 0.1 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 2017-06-22Temperature 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 00:00Z on 2017-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939587897Sfc1 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
1863 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WHUS43 KGRR 220004
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
804 PM EDT WED JUN 21 2017

MIZ037-043-050-056-064-071-220815-
/O.NEW.KGRR.BH.S.0005.170622T1000Z-170622T2200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
804 PM EDT WED JUN 21 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM 6 AM EDT THURSDAY
THROUGH THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT FROM 6 AM EDT THURSDAY
THROUGH THURSDAY AFTERNOON. 

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

* STRONG STRUCTURAL CURRENTS EXPECTED. 

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS POSSIBLE. 

* LOCATION...BEACHES FROM ST. JOSEPH TO MANISTEE OR APPROPRIATE
  ZONE.  

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE... 

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

* OVERVIEW/POTENTIAL IMPACTS...SOUTH WINDS WILL INCREASE TO OVER
  15 KNOTS TONIGHT AND INTO THURSDAY. THIS WILL CAUSE BUILDING
  WAVES TO OVER 3 FEET LEADING TO HAZARDOUS SWIM CONDITIONS.
  

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
3 follow-up statements
670 
WHUS43 KGRR 220741
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
341 AM EDT THU JUN 22 2017

MIZ037-043-050-056-064-071-221545-
/O.CON.KGRR.BH.S.0005.170622T1000Z-170622T2200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
341 AM EDT THU JUN 22 2017

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

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS POSSIBLE.

* LOCATION...BEACHES FROM ST. JOSEPH TO MANISTEE OR APPROPRIATE 
  ZONE. 

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...SOUTH WINDS WILL INCREASE TO 15 TO
  25 MPH TODAY. THIS WILL CAUSE BUILDING WAVES TO OVER 3 FEET 
  LEADING TO HAZARDOUS SWIM CONDITIONS. 

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
217 
WHUS43 KGRR 221342
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
942 AM EDT THU JUN 22 2017

MIZ037-043-050-056-064-071-222145-
/O.CON.KGRR.BH.S.0005.000000T0000Z-170622T2200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
942 AM EDT THU JUN 22 2017

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

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS POSSIBLE.

* RIP CURRENTS POSSIBLE.

* LOCATION...BEACHES FROM ST. JOSEPH TO MANISTEE OR APPROPRIATE 
  ZONE. 

* BEACHES WITH PARTICULARLY DANGEROUS CONDITIONS INCLUDE...

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

* OVERVIEW/POTENTIAL IMPACTS...SOUTH WINDS WILL INCREASE TO 15 
  TO 25 MPH TODAY. THIS WILL CAUSE BUILDING WAVES TO OVER 3 FEET 
  LEADING TO HAZARDOUS SWIM CONDITIONS. 

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
993 
WHUS43 KGRR 221521
CFWGRR

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1121 AM EDT THU JUN 22 2017

MIZ037-043-050-056-064-071-221630-
/O.CAN.KGRR.BH.S.0005.000000T0000Z-170622T2200Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
1121 AM EDT THU JUN 22 2017

...BEACH HAZARDS STATEMENT IS CANCELLED...

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

$$


WEATHER.GOV/GRR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 4:37 AM EDTSpecial Weather StatementGRRLake, Osceola53 min
Jun 22, 5:30 AM EDTSpecial Weather StatementGRRClare, Mecosta, Muskegon, Newaygo, Oceana, Osceola60 min
Jun 22, 6:01 AM EDTSpecial Marine WarningGRR44 min
Jun 22, 6:14 AM EDTSpecial Weather StatementGRRIsabella31 min
Jun 22, 6:05 PM EDTSpecial Weather StatementGRRAllegan85 min
Jun 22, 6:59 PM EDTSpecial Weather StatementGRRKent61 min
Jun 22, 7:30 PM EDTSpecial Weather StatementGRRIngham, Jackson90 min

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.