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13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.

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2025 [KGRR] GRAND_RAPIDS Gale (GL) Watch (A) Number 6

Listing of Counties/Parishes/Zones Included in Product

RADAR Composite at Issuance Time

Storm Based Warning History

035 
WHUS73 KGRR 181959
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
359 PM EDT Tue Mar 18 2025

LMZ844>849-190400-
/O.NEW.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
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-
359 PM EDT Tue Mar 18 2025

...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

* WHAT...Northwest gales to 40 to 45 knots and waves 8 to 13 feet
  possible. Waves 

* WHERE...St Joseph to Manistee.

* WHEN...From Wednesday evening through Thursday afternoon.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Strong north gales are likely on Lake
  Michigan Wednesday night and Thursday morning behind a strong
  low pressure system moving through the Great Lakes region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

DUKE
816 
WHUS73 KGRR 190142
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
942 PM EDT Tue Mar 18 2025

LMZ847>849-190945-
/O.UPG.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
/O.NEW.KGRR.GL.W.0010.250320T0300Z-250320T1800Z/
Grand Haven to Whitehall MI-Whitehall to Pentwater MI-
Pentwater to Manistee MI-
942 PM EDT Tue Mar 18 2025

...GALE WARNING IN EFFECT FROM 11 PM WEDNESDAY TO 2 PM EDT
THURSDAY...

* WHAT...North winds 25 to 35 knots with gusts up to 45 knots 
  and waves 7 to 12 feet expected.

* WHERE...Grand Haven to Manistee.

* WHEN...From 11 PM Wednesday to 2 PM EDT Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A brief period of storm force winds are
  possible early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ844>846-190945-
/O.UPG.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
/O.NEW.KGRR.GL.W.0010.250320T0900Z-250320T1800Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-
942 PM EDT Tue Mar 18 2025

...GALE WARNING IN EFFECT FROM 5 AM TO 2 PM EDT THURSDAY...

* WHAT...North winds 20 to 30 knots with gusts up to 40 knots 
  and waves 8 to 13 feet expected.

* WHERE...St Joseph to Grand Haven.

* WHEN...From 5 AM to 2 PM EDT Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A brief period of storm force winds are
  possible early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$
Permalink to 202503181959-KGRR-WHUS73-MWWGRR
035 
WHUS73 KGRR 181959
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
359 PM EDT Tue Mar 18 2025

LMZ844>849-190400-
/O.NEW.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
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-
359 PM EDT Tue Mar 18 2025

...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

* WHAT...Northwest gales to 40 to 45 knots and waves 8 to 13 feet
  possible. Waves 

* WHERE...St Joseph to Manistee.

* WHEN...From Wednesday evening through Thursday afternoon.

* IMPACTS...Strong winds can cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Strong north gales are likely on Lake
  Michigan Wednesday night and Thursday morning behind a strong
  low pressure system moving through the Great Lakes region.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and waves.

&&

$$

DUKE
Permalink to 202503190142-KGRR-WHUS73-MWWGRR
816 
WHUS73 KGRR 190142
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
942 PM EDT Tue Mar 18 2025

LMZ847>849-190945-
/O.UPG.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
/O.NEW.KGRR.GL.W.0010.250320T0300Z-250320T1800Z/
Grand Haven to Whitehall MI-Whitehall to Pentwater MI-
Pentwater to Manistee MI-
942 PM EDT Tue Mar 18 2025

...GALE WARNING IN EFFECT FROM 11 PM WEDNESDAY TO 2 PM EDT
THURSDAY...

* WHAT...North winds 25 to 35 knots with gusts up to 45 knots 
  and waves 7 to 12 feet expected.

* WHERE...Grand Haven to Manistee.

* WHEN...From 11 PM Wednesday to 2 PM EDT Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A brief period of storm force winds are
  possible early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

LMZ844>846-190945-
/O.UPG.KGRR.GL.A.0006.250320T0000Z-250320T1800Z/
/O.NEW.KGRR.GL.W.0010.250320T0900Z-250320T1800Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-
942 PM EDT Tue Mar 18 2025

...GALE WARNING IN EFFECT FROM 5 AM TO 2 PM EDT THURSDAY...

* WHAT...North winds 20 to 30 knots with gusts up to 40 knots 
  and waves 8 to 13 feet expected.

* WHERE...St Joseph to Grand Haven.

* WHEN...From 5 AM to 2 PM EDT Thursday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A brief period of storm force winds are
  possible early Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

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