Alert archive / Michigan / Gale Warnings in 2021

Gale Warning 9, NWS Grand Rapids, MI

April 30, 2021

NWS Grand Rapids, MI issued this gale warning at Apr 30, 2021, 3:42 PM EDT. It took effect at May 1, 2021, 8:00 AM EDT. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 30, 2021, 3:42 PM EDT (19:42 UTC)
In effect from
May 1, 2021, 8:00 AM EDT
Expired
May 1, 2021, 8:03 PM EDT
In force
12 hr
Issued by
NWS Grand Rapids, MI

The text

As transmitted.

991 
WHUS73 KGRR 301942
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
342 PM EDT Fri Apr 30 2021

LMZ849-010345-
/O.EXT.KGRR.SC.Y.0038.000000T0000Z-210430T2100Z/
/O.NEW.KGRR.GL.W.0009.210501T1200Z-210501T2000Z/
Pentwater to Manistee MI-
342 PM EDT Fri Apr 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 8 AM TO 4 PM EDT SATURDAY...

* WHAT...For the Gale Warning, south gales to 40 knots and waves 6
  to 9 feet expected. For the Small Craft Advisory, northwest 
  winds 15 to 25 knots into late afternoon then diminishing to 
  under 15 knots by midnight. Waves 3 to 5 feet early diminishing 
  to 1 to 3 feet.

* WHERE...Pentwater to Manistee MI.

* WHEN...For the Gale Warning, from 8 AM to 4 PM EDT Saturday. 
  For the Small Craft Advisory, until 5 PM EDT this afternoon.

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


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 severe conditions.

&&

$$

LMZ844>848-010345-
/O.EXT.KGRR.SC.Y.0038.000000T0000Z-210430T2100Z/
/O.NEW.KGRR.GL.W.0009.210501T1200Z-210502T0100Z/
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-
342 PM EDT Fri Apr 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM 8 AM TO 9 PM EDT SATURDAY...

* WHAT...For the Gale Warning, south gales to 40 knots and waves 5
  to 8 feet expected. For the Small Craft Advisory, northwest
  winds 15 to 25 knots into late afternoon then diminishing to
  under 15 knots by midnight. Waves 3 to 5 feet early diminishing
  to 1 to 3 feet.

* WHERE...St Joseph to Pentwater.

* WHEN...For the Gale Warning, from 8 AM to 9 PM EDT Saturday. 
  For the Small Craft Advisory, until 5 PM EDT this afternoon.

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


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 severe conditions.

&&

$$
5 follow-up statements
973 
WHUS73 KGRR 010131
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
931 PM EDT Fri Apr 30 2021

LMZ849-011100-
/O.CON.KGRR.GL.W.0009.210501T1200Z-210501T2000Z/
Pentwater to Manistee MI-
931 PM EDT Fri Apr 30 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 AM TO 4 PM EDT
SATURDAY...

* WHAT...South gales to 40 knots and waves 6 to 9 feet expected.

* WHERE...Pentwater to Manistee MI.

* WHEN...8AM to 4 PM EDT Saturday.

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

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 severe conditions.

&&

$$

LMZ844>848-011100-
/O.CON.KGRR.GL.W.0009.210501T1200Z-210502T0100Z/
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-
931 PM EDT Fri Apr 30 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 AM TO 9 PM EDT
SATURDAY...

* WHAT...South gales to 40 knots and waves 5 to 8 feet expected. 

* WHERE...St Joseph to Pentwater.

* WHEN...8 AM to 9 PM EDT Saturday

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

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 severe conditions.

&&

$$
716 
WHUS73 KGRR 010729
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
329 AM EDT Sat May 1 2021

LMZ849-011530-
/O.EXT.KGRR.GL.W.0009.210501T1200Z-210502T0000Z/
Pentwater to Manistee MI-
329 AM EDT Sat May 1 2021

...GALE WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO 8 PM EDT
THIS EVENING...

* WHAT...South gales to 35 knots and waves 7 to 10 feet expected.

* WHERE...Pentwater to Manistee MI.

* WHEN...From 8 AM this morning to 8 PM EDT this evening.

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

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 severe conditions.

&&

$$

LMZ844>848-011530-
/O.CON.KGRR.GL.W.0009.210501T1200Z-210502T0100Z/
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-
329 AM EDT Sat May 1 2021

...GALE WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 9 PM
EDT THIS EVENING...

* WHAT...South gales to 35 knots and waves 6 to 9 feet expected.

* WHERE...St Joseph to Pentwater.

* WHEN...8 AM to 9 PM EDT Saturday.

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

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 severe conditions.

&&

$$
709 
WHUS73 KGRR 011351
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
951 AM EDT Sat May 1 2021

LMZ849-012200-
/O.CON.KGRR.GL.W.0009.000000T0000Z-210502T0000Z/
Pentwater to Manistee MI-
951 AM EDT Sat May 1 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...South gales to 40 knots and waves 5 to 9 feet.

* WHERE...Pentwater to Manistee MI.

* WHEN...Until 8 PM EDT this evening.

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

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 severe conditions.

&&

$$

LMZ844>848-012200-
/O.CON.KGRR.GL.W.0009.000000T0000Z-210502T0100Z/
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-
951 AM EDT Sat May 1 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING...

* WHAT...South gales to 40 knots and waves 5 to 9 feet.

* WHERE...St Joseph to Pentwater.

* WHEN...Until 9 PM EDT this evening.

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

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 severe conditions.

&&

$$

wdm
345 
WHUS73 KGRR 011940
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
340 PM EDT Sat May 1 2021

LMZ849-020000-
/O.CON.KGRR.GL.W.0009.000000T0000Z-210502T0000Z/
Pentwater to Manistee MI-
340 PM EDT Sat May 1 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...South gales to 40 knots and waves 5 to 9 feet.

* WHERE...Pentwater to Manistee MI.

* WHEN...Until 8 PM EDT this evening.

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

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 severe conditions.

&&

$$

LMZ844>848-020100-
/O.CON.KGRR.GL.W.0009.000000T0000Z-210502T0100Z/
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-
340 PM EDT Sat May 1 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING...

* WHAT...South gales to 40 knots and waves 5 to 9 feet.

* WHERE...St Joseph to Pentwater.

* WHEN...Until 9 PM EDT this evening.

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

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 severe conditions.

&&

$$

wdm
320 
WHUS73 KGRR 020003
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
803 PM EDT Sat May 1 2021

LMZ844>848-020815-
/O.CAN.KGRR.GL.W.0009.000000T0000Z-210502T0100Z/
/O.NEW.KGRR.SC.Y.0039.210502T0003Z-210502T2000Z/
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-
803 PM EDT Sat May 1 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT SUNDAY...
...GALE WARNING IS CANCELLED...

* WHAT...South winds 15 to 25 knots with gusts to 30 knots at
  times. Waves 3 to 6 feet.

* WHERE...Pentwater to Manistee MI.

* WHEN...Until 4 PM EDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The largest waves will occur this evening,
  slowly subsiding late tonight and on Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ849-020815-
/O.EXP.KGRR.GL.W.0009.000000T0000Z-210502T0000Z/
/O.NEW.KGRR.SC.Y.0039.210502T0003Z-210502T2000Z/
Pentwater to Manistee MI-
803 PM EDT Sat May 1 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT SUNDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...South winds 15 to 25 knots with gusts to 30 knots at
  times. Waves 3 to 6 feet.

* WHERE...Pentwater to Manistee MI.

* WHEN...Until 4 PM EDT Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

* ADDITIONAL DETAILS...The largest waves will occur this evening,
  slowly subsiding late tonight and on Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

DUKE

Nearby

Gale Warnings in Michigan, 2021Every gale warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.