Alert archive / Michigan / Beach Hazards Statements in 2012

Beach Hazards Statement 5, NWS Grand Rapids, MI

July 19, 2012Allegan County, Ottawa County, Van Buren County, Michigan

NWS Grand Rapids, MI issued this beach hazards statement at Jul 19, 2012, 8:55 PM EDT for Allegan County, Ottawa County, Van Buren County, Michigan. It took effect at Jul 20, 2012, 12:00 PM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 19, 2012, 8:55 PM EDT (00:55 UTC)
In effect from
Jul 20, 2012, 12:00 PM EDT
Expired
Jul 20, 2012, 3:17 PM EDT
In force
3 hr
Issued by
NWS Grand Rapids, MI

Counties Allegan County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 58 km from the middle of the area, began a volume at 00:59 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

Detroit, MI (KDTX), launched 00:00Z, 0.9 hours before the alert went out and 221 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, Detroit, MI at 00:00Z on 2012-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Detroit, MI at 00:00Z on 2012-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
560 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

288 
WHUS43 KGRR 200055
CFWGRR

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
855 PM EDT THU JUL 19 2012

MIZ056-064-071-200900-
/O.NEW.KGRR.BH.S.0005.120720T1600Z-120721T0200Z/
OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE BEACHES OF...GRAND HAVEN STATE PARK...KIRK PARK...
TUNNEL PARK...HOLLAND STATE PARK...OVAL BEACH...WEST SIDE PARK...
SAUGATUCK DUNES STATE PARK...DOUGLAS BEACH...NORTH BEACH...
SOUTH BEACH...VAN BUREN STATE PARK
855 PM EDT THU JUL 19 2012

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

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

* HIGH WAVE ACTION 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 FRIDAY
  INCLUDE...NORTH BEACH IN SOUTH HAVEN AND HOLLAND STATE PARK.

* OVERVIEW/POTENTIAL IMPACTS...OFFSHORE FLOW FRIDAY MORNING WILL
  BECOME NORTH/NORTHWEST IN THE AFTERNOON. WINDS WILL INCREASE TO
  AS HIGH AS 15 TO 25 KNOTS FOR A FEW HOURS IN THE AFTERNOON AND
  EARLY EVENING ON FRIDAY. WAVES WILL PICK UP KIND OF QUICKLY MID
  TO LATE AFTERNOON...WITH 2 TO 4 FEET EXPECTED AND SOME 5 FOOT
  WAVES POSSIBLE.

  LONGSHORE CURRENTS WILL BE EXPECTED AND CURRENTS WILL BECOME
  HAZARDOUS ON THE NORTH SIDE OF ANY STRUCTURES IN ADDITION TO THE
  WAVE HEIGHTS THEMSELVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE SURE OF YOUR SWIMMING ABILITY. CHILDREN SHOULD NOT ENTER THE
WATER UNSUPERVISED AND WITHOUT A CERTIFIED FLOTATION DEVICE.
CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. PAY ATTENTION
TO FLAGS AND SIGNS POSTED NEAR BEACH ACCESS POINTS AND LIFEGUARD
STATIONS. 

HIGH WAVE ACTION ALONE CAN MAKE SWIMMING DIFFICULT ON DAYS SUCH
AS THIS. INCOMING WAVES IN RAPID SUCCESSION CAN TIRE A SWIMMER
QUICKLY.

STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE CURRENTS AND
WAVE ACTION FLOW INTO THE STRUCTURE. STRUCTURAL CURRENTS CAN
SWEEP YOU OUT LAKEWARD 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 OUT LAKEWARD.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

&&

$$

NJJ

WEATHER.GOV/GRR
3 follow-up statements
253 
WHUS43 KGRR 200738
CFWGRR

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
338 AM EDT FRI JUL 20 2012

MIZ056-064-071-201545-
/O.CON.KGRR.BH.S.0005.120720T1600Z-120721T0200Z/
OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE BEACHES OF...GRAND HAVEN STATE PARK...KIRK PARK...
TUNNEL PARK...HOLLAND STATE PARK...OVAL BEACH...WEST SIDE PARK...
SAUGATUCK DUNES STATE PARK...DOUGLAS BEACH...NORTH BEACH...
SOUTH BEACH...VAN BUREN STATE PARK
338 AM EDT FRI JUL 20 2012

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

* HIGH WAVE ACTION 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 THIS AFTERNOON
  INCLUDE... NORTH BEACH IN SOUTH HAVEN AND HOLLAND STATE PARK.

* OVERVIEW/POTENTIAL IMPACTS...NORTHEAST WINDS THIS MORNING WILL
  BECOME NORTH/NORTHWEST IN THE AFTERNOON. WINDS WILL INCREASE TO
  AS HIGH AS 15 TO 25 KNOTS FOR A FEW HOURS IN THE AFTERNOON AND
  EARLY EVENING TODAY. WAVES WILL PICK UP MID TO LATE AFTERNOON...
  WITH 3 TO 5 FEET LIKELY.

 LONGSHORE CURRENTS WILL BE EXPECTED AND CURRENTS WILL BECOME  
 HAZARDOUS ON THE NORTH SIDE OF ANY STRUCTURES IN ADDITION TO THE 
 WAVE HEIGHTS THEMSELVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE SURE OF YOUR SWIMMING ABILITY. CHILDREN SHOULD NOT ENTER THE
WATER UNSUPERVISED AND WITHOUT A CERTIFIED FLOTATION DEVICE.
CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. PAY ATTENTION
TO FLAGS AND SIGNS POSTED NEAR BEACH ACCESS POINTS AND LIFEGUARD
STATIONS.

HIGH WAVE ACTION ALONE CAN MAKE SWIMMING DIFFICULT ON DAYS SUCH
AS THIS. INCOMING WAVES IN RAPID SUCCESSION CAN TIRE A SWIMMER
QUICKLY.

STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE CURRENTS AND
WAVE ACTION FLOW INTO THE STRUCTURE. STRUCTURAL CURRENTS CAN
SWEEP YOU OUT LAKEWARD 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 OUT LAKEWARD.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

&&

$$

NJJ

WEATHER.GOV/GRR
688 
WHUS43 KGRR 201544
CFWGRR

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1144 AM EDT FRI JUL 20 2012

MIZ056-064-071-202345-
/O.CON.KGRR.BH.S.0005.120720T1600Z-120721T0200Z/
OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE BEACHES OF...GRAND HAVEN STATE PARK...KIRK PARK...
TUNNEL PARK...HOLLAND STATE PARK...OVAL BEACH...WEST SIDE PARK...
SAUGATUCK DUNES STATE PARK...DOUGLAS BEACH...NORTH BEACH...
SOUTH BEACH...VAN BUREN STATE PARK
1144 AM EDT FRI JUL 20 2012

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* HIGH WAVE ACTION 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 THIS AFTERNOON 
  INCLUDE... NORTH BEACH IN SOUTH HAVEN AND HOLLAND STATE PARK. 

* OVERVIEW/POTENTIAL IMPACTS...NORTHEAST WINDS THIS MORNING WILL 
  BECOME NORTH/NORTHWEST IN THE AFTERNOON. WINDS WILL INCREASE 
  TO AS HIGH AS 15 TO 25 KNOTS FOR A FEW HOURS IN THE AFTERNOON 
  AND EARLY EVENING TODAY. WAVES WILL PICK UP MID TO LATE 
  AFTERNOON... WITH 3 TO 5 FEET LIKELY. 

LONGSHORE CURRENTS WILL BE EXPECTED AND CURRENTS WILL BECOME 
HAZARDOUS ON THE NORTH SIDE OF ANY STRUCTURES IN ADDITION TO THE 
WAVE HEIGHTS THEMSELVES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE SURE OF YOUR SWIMMING ABILITY. CHILDREN SHOULD NOT ENTER THE
WATER UNSUPERVISED AND WITHOUT A CERTIFIED FLOTATION DEVICE.
CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. PAY ATTENTION
TO FLAGS AND SIGNS POSTED NEAR BEACH ACCESS POINTS AND LIFEGUARD
STATIONS.

HIGH WAVE ACTION ALONE CAN MAKE SWIMMING DIFFICULT ON DAYS SUCH
AS THIS. INCOMING WAVES IN RAPID SUCCESSION CAN TIRE A SWIMMER
QUICKLY.

STRUCTURAL CURRENTS FORM ALONG PIERS WHERE LONGSHORE CURRENTS AND
WAVE ACTION FLOW INTO THE STRUCTURE. STRUCTURAL CURRENTS CAN
SWEEP YOU OUT LAKEWARD 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 OUT LAKEWARD.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

&&

$$


WEATHER.GOV/GRR
546 
WHUS43 KGRR 201917
CFWGRR

LAKESHORE HAZARD MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
317 PM EDT FRI JUL 20 2012

MIZ056-064-071-202030-
/O.CAN.KGRR.BH.S.0005.000000T0000Z-120721T0200Z/
OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE BEACHES OF...GRAND HAVEN STATE PARK...KIRK PARK...
TUNNEL PARK...HOLLAND STATE PARK...OVAL BEACH...WEST SIDE PARK...
SAUGATUCK DUNES STATE PARK...DOUGLAS BEACH...NORTH BEACH...
SOUTH BEACH...VAN BUREN STATE PARK
317 PM EDT FRI JUL 20 2012

...BEACH HAZARDS STATEMENT IS CANCELLED...

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

WAVES HEIGHTS WILL CONTINUE TO SUBSIDED THIS EVENING BEING UNDER 3
FEET BY MID EVENING.

$$


WEATHER.GOV/GRR


WDM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 9:20 PM EDTSmall Craft AdvisoryGRR18 hr

Nearby

Beach Hazards Statements in Michigan, 2012Every beach hazards statement in 2012

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.