Beach Hazards Statement 17, NWS Grand Rapids, MI

563 
WHUS43 KGRR 251939
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
339 PM EDT Tue Sep 25 2018

MIZ037-043-050-056-064-071-260345-
/O.CON.KGRR.BH.S.0017.180926T0400Z-180927T0000Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
339 PM EDT Tue Sep 25 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MIDNIGHT EDT
TONIGHT THROUGH WEDNESDAY 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.

North Beach in South Haven... Holland State Park... Muskegon
State Park... Mears State Park in Pentwater... Stearns Park in
Ludington.

* OVERVIEW/POTENTIAL IMPACTS...A strong cold front will pass 
  through the area around midnight turning winds to the 
  northwest and 15 to 25 mph with gusts to 35 mph. Winds will 
  turn more westerly by mid morning Wednesday. Those strong 
  winds will result in 5 to 8 foot waves creating dangerous 
  conditions for swimmers. In addition, water temperatures have 
  dropped off, and likely will become even colder yet due to the 
  mixing by the strong winds. That will add yet another hazard 
  to anyone swimming in the waters of Lake Michigan Wednesday. 

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

481 
WHUS43 KGRR 260734
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
334 AM EDT Wed Sep 26 2018

MIZ037-043-050-056-064-071-261545-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180927T0000Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
334 AM EDT Wed Sep 26 2018

...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.

North Beach in South Haven... Holland State Park... Muskegon
State Park... Mears State Park in Pentwater... Stearns Park in
Ludington.

* OVERVIEW/POTENTIAL IMPACTS...Gusty west winds today of 25 to 35
  mph will help push 4 to 8 foot waves onshore. Very hazardous
  swim conditions today will result. 

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

972 
WHUS43 KGRR 261345
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
945 AM EDT Wed Sep 26 2018

MIZ037-043-050-056-064-071-262145-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180927T0000Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
945 AM EDT Wed Sep 26 2018

...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 EXPECTED.

* LOCATION...BEACHES FROM St. Joseph to Manistee.

North Beach in South Haven... Holland State Park... Muskegon
State Park... Mears State Park in Pentwater... Stearns Park in
Ludington.

* OVERVIEW/POTENTIAL IMPACTS...Gusty west winds today of 25 to 
  35 mph will help push 4 to 8 foot waves onshore. Very 
  hazardous swim conditions today will result. 

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

050 
WHUS43 KGRR 261954
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
354 PM EDT Wed Sep 26 2018

MIZ037-043-050-056-064-071-270400-
/O.EXT.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
354 PM EDT Wed Sep 26 2018

...BEACH HAZARDS STATEMENT NOW 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 St. Joseph to Manistee.

North Beach in South Haven... Holland State Park... Muskegon
State Park... Mears State Park in Pentwater... Stearns Park in
Ludington.

* OVERVIEW/POTENTIAL IMPACTS...Gusty southwest winds today of 20
  to 30 mph will result in 2 to 5 foot waves waves coming onshore.
  Hazardous swim conditions today will result.
  

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

636 
WHUS43 KGRR 270149
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
949 PM EDT Wed Sep 26 2018

MIZ064-071-270300-
/O.CAN.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Allegan-Van Buren-
949 PM EDT Wed Sep 26 2018

...BEACH HAZARDS STATEMENT IS CANCELLED...

The National Weather Service in Grand Rapids has cancelled the
Beach Hazards Statement. 


$$

MIZ037-043-050-056-271000-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Mason-Oceana-Muskegon-Ottawa-
949 PM EDT Wed Sep 26 2018

...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 THURSDAY 
  INCLUDE GRAND HAVEN STATE PARK AND PERE MARQUETTE PARK IN 
  MUSKEGON. 

* OVERVIEW/POTENTIAL IMPACTS...Southwest winds will increase on
  Thursday to 15 to 30 mph and continue Thursday night. Winds will
  shift west-northwest for Friday. Waves, although currently
  decreasing this evening, will build again on Thursday to 4 to 7
  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

688 
WHUS43 KGRR 271450
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
1050 AM EDT Thu Sep 27 2018

MIZ037-043-050-056-272300-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Mason-Oceana-Muskegon-Ottawa-
1050 AM EDT Thu Sep 27 2018

...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 THURSDAY 
  INCLUDE GRAND HAVEN STATE PARK AND PERE MARQUETTE PARK IN 
  MUSKEGON. 

* OVERVIEW/POTENTIAL IMPACTS...Southwest winds will increase today
  to 15 to 30 mph and continue tonight. Winds will shift west-
  northwest for Friday. Waves, although currently decreasing this 
  evening, will build again on Thursday to 4 to 7 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

732 
WHUS43 KGRR 271947
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
347 PM EDT Thu Sep 27 2018

MIZ064-280400-
/O.EXA.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Allegan-
347 PM EDT Thu Sep 27 2018

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

The National Weather Service in Grand Rapids has issued a Beach
Hazards Statement...which is 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 SOUTH HAVEN TO HOLLAND.


* OVERVIEW/POTENTIAL IMPACTS...Southwest winds will continue
  tonight to 15 to 25 mph. Winds will shift west- northwest for 
  Friday. Waves 3 to 5 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.

&&

$$

MIZ037-043-050-056-280400-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Mason-Oceana-Muskegon-Ottawa-
347 PM EDT Thu Sep 27 2018

...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 THURSDAY 
  INCLUDE GRAND HAVEN STATE PARK AND PERE MARQUETTE PARK IN 
  MUSKEGON. 

* OVERVIEW/POTENTIAL IMPACTS...Southwest winds will continue
  tonight to 15 to 30 mph. Winds will shift west- northwest for 
  Friday. Waves, although currently decreasing this evening, will 
  build again on Thursday to 4 to 7 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

894 
WHUS43 KGRR 280144
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
944 PM EDT Thu Sep 27 2018

MIZ037-043-050-056-064-280945-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T0000Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-
944 PM EDT Thu Sep 27 2018

...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 SOUTH HAVEN TO MANISTEE.

* OVERVIEW/POTENTIAL IMPACTS...Southwest winds will continue
  tonight at 10 to 20 mph. Winds will shift west-northwest for
  Friday. Waves tonight will be 4 to 7 feet, highest around
  Ludington, then 3 to 5 feet 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

692 
WHUS43 KGRR 280803
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
403 AM EDT Fri Sep 28 2018

MIZ071-281615-
/O.EXB.KGRR.BH.S.0017.000000T0000Z-180929T1200Z/
Van Buren-
403 AM EDT Fri Sep 28 2018

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SATURDAY MORNING...

The National Weather Service in Grand Rapids has issued a Beach
Hazards Statement...which is in effect through Saturday morning. 

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM SOUTH HAVEN TO MANISTEE.

* OVERVIEW/POTENTIAL IMPACTS...West winds turn northwest today and
  waves will be 3 to 5 feet. The north sides of piers will be most
  impacted with this event.

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.

&&

$$

MIZ037-043-050-056-064-281615-
/O.EXT.KGRR.BH.S.0017.000000T0000Z-180929T1200Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-
403 AM EDT Fri Sep 28 2018

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SATURDAY
MORNING...

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

* STRONG STRUCTURAL CURRENTS EXPECTED.

* STRONG LONGSHORE CURRENTS EXPECTED.

* RIP CURRENTS EXPECTED.

* LOCATION...BEACHES FROM SOUTH HAVEN TO MANISTEE.

* OVERVIEW/POTENTIAL IMPACTS...West winds turn northwest today and
  waves will be 3 to 5 feet. The north sides of piers will be most
  impacted with this event. 

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

441 
WHUS43 KGRR 281512
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
1112 AM EDT Fri Sep 28 2018

MIZ037-043-050-056-064-071-282315-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T1200Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
1112 AM EDT Fri Sep 28 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
MORNING...

* 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.

* OVERVIEW/POTENTIAL IMPACTS...West winds turn to the northwest
  today behind a cold front and continue into tonight. Waves will
  reach the 3 to 5 foot range today and 4 to 6 feet tonight. The 
  north sides of piers will be most impacted with this event.
 
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

762 
WHUS43 KGRR 281957
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
357 PM EDT Fri Sep 28 2018

MIZ037-043-050-056-064-071-290400-
/O.EXT.KGRR.BH.S.0017.000000T0000Z-180929T1500Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
357 PM EDT Fri Sep 28 2018

...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH SATURDAY
MORNING...

* 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.

* OVERVIEW/POTENTIAL IMPACTS...Waves will reach the 3 to 5 foot
  range this evening and 4 to 6 feet tonight. The north sides of 
  piers will be most impacted with this event. 

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

120 
WHUS43 KGRR 290138
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
938 PM EDT Fri Sep 28 2018

MIZ037-043-050-056-064-071-290945-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T1500Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
938 PM EDT Fri Sep 28 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
MORNING...

* 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.

* OVERVIEW/POTENTIAL IMPACTS...Waves of 3 to 6 feet can be
  expected tonight, gradually subsiding on Saturday. The north 
  sides of piers will be most impacted with this event.
 
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

049 
WHUS43 KGRR 290735
CFWGRR

LAKESHORE HAZARD MESSAGE
National Weather Service GRAND RAPIDS MI
335 AM EDT Sat Sep 29 2018

MIZ037-043-050-056-064-071-291500-
/O.CON.KGRR.BH.S.0017.000000T0000Z-180929T1500Z/
Mason-Oceana-Muskegon-Ottawa-Allegan-Van Buren-
335 AM EDT Sat Sep 29 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* 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.

* OVERVIEW/POTENTIAL IMPACTS...Waves of 3 to 5 feet can be
  expected early this morning, gradually subsiding by late morning.
  The north sides of piers will be most impacted with this event.
  

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

Area Forecast Discussion
National Weather Service Grand Rapids MI
748 AM EDT Tue Sep 25 2018

LATEST UPDATE...
Aviation

.SYNOPSIS...
Issued at 300 AM EDT Tue Sep 25 2018

A low pressure system will bring scattered showers and a few
thunderstorms today with a better chance for thunderstorms along
and just ahead of a cold front that will move across southwestern
lower Michigan this evening. Some severe storms are possible late
this afternoon and evening. It will turn much cooler Wednesday
through Thursday. A slow moving frontal boundary will bring potential
for rain and possibly a few thunderstorms Friday through Saturday.

&&

.DISCUSSION...(Today through next Monday)
Issued at 300 AM EDT Tue Sep 25 2018

Primary fcst concerns involve determining potential for severe wx
late today/tonight.

It will be warmer and become quite humid today due to continued
south to sw flow well out ahead of the cold front. Rgnl radar
trends show an area of showers and storms over west central
IN/east central IL that is moving ne.

A consensus of latest CAMs suggests this activity will move into
our southern fcst area after daybreak. Additional showers will
continue to develop through the day and a few storms may develop
as well as instability increases later today.

The best chance for convection will come late this afternoon
through this evening along and out ahead of the approaching cold
front. Ample low level moisture will be in place with strong deep
layer shear this evening on the order of 40-50 kts. SB/ML cape
values will likely reach around 1k-2k j/kg by late aftn/eve.

All things considered some strong to severe storms are possible
late aftn through the eve. Fcst kinematic profiles suggest
potential for damaging wind gusts as the primary svr wx threat
given strong wind shear and increasing winds aloft.

In addition an isolated tornado seems possible late
this aftn/eve over our southern fcst area as suggested by a
consensus of latest spc sref svr wx parameters such as the
supercell composite parameter and craven/brooks sig svr parameter.
There is also sufficient deep layer shear for organized convection
and even a couple of supercell storms.

However a fair amount of cloud cover is expected today. This will
potentially limit instability and mitigate the severe wx threat
somewhat.

It will become cooler and much less humid for mid to late week. A
slow moving frontal boundary will likely focus development of
rain and perhaps a few storms over our fcst area by Friday through
Saturday. High pressure will build in behind that system and
bring fair wx Saturday night and Sunday.

&&

.AVIATION...(For the 12Z TAFS through 12Z Wednesday morning)
Issued at 741 AM EDT Tue Sep 25 2018

As anticipated, low clouds with IFR have plagued much of the
region this morning and they will be slow to lift. Visibilities
will largely stay out of the IFR category but local exceptions (of
short duration) are possible. Any storms that develop will likely
hold off until mid to late afternoon, and as such I did not
mention VCTS just yet. Storm development is partly contingent on
how much cloud cover thins out today. Still some time to fine tune
the "time of arrival" details in the TAFs.

Cold front passing through tonight will abruptly shift winds from
S to WNW and they could be gusty at MKG...possibly over 30 kts.
Other sites should hold between 10-15 kts.

&&

.MARINE...
Issued at 300 AM EDT Tue Sep 25 2018

Southwest winds will ramp up significantly late tonight with brisk
northwest winds to follow for Wednesday. This is conjunction with
the cool air advection across relatively mild lake waters will
cause wave heights to build to around 4 to 7 feet late tonight
through Wednesday. Therefore we will hoist a small craft advisory
from midnight tonight through 8 pm Wednesday.

&&

.HYDROLOGY...
Issued at 956 AM EDT Sun Sep 23 2018

Rivers are running around to a little above normal for the time of
year. Levels are steady or slowly falling, and are well below flood
stage. Dry weather is expected into Monday. Under an inch of rain is
possible Monday into Tuesday, with no flooding expected.

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
LM...Small Craft Advisory from midnight tonight to 8 PM EDT Wednesday
     for LMZ844>849.

&&

SYNOPSIS...Laurens
DISCUSSION...Laurens
AVIATION...Hoving
HYDROLOGY...63
MARINE...Laurens

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
754 AM EDT Tue Sep 25 2018

MIZ037>040-043>046-050>052-056>059-064>067-071>074-261200-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
754 AM EDT Tue Sep 25 2018

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Strong to severe thunderstorms are possible mainly from mid
afternoon into tonight. Threats include damaging wind gusts and an
isolated tornado. Locally heavy downpours are also possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed today.

LMZ844>849-261200-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
754 AM EDT Tue Sep 25 2018

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Strong to severe thunderstorms are possible mainly tonight with
gusty winds possible. A front moves through overnight bringing
strong sustained winds of 25 to 30 knots.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Winds and waves will be very hazardous to small craft on
Wednesday. Waves may reach as high as 8 feet.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed today.