Alert archive / Michigan / Storm Warnings in 2021

Storm Warning 1, NWS Grand Rapids, MI

December 11, 2021

NWS Grand Rapids, MI issued this storm warning at Dec 11, 2021, 6:19 AM EST. It was in force for 4 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
Dec 11, 2021, 6:19 AM EST (11:19 UTC)
Expired
Dec 11, 2021, 10:00 AM EST
In force
4 hr
Issued by
NWS Grand Rapids, MI

The text

As transmitted.

852 
WHUS73 KGRR 111119
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
619 AM EST Sat Dec 11 2021

LMZ844>847-111930-
/O.UPG.KGRR.GL.W.0021.000000T0000Z-211212T0000Z/
/O.NEW.KGRR.SR.W.0001.211211T1119Z-211211T1500Z/
/O.NEW.KGRR.GL.W.0022.211211T1500Z-211212T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
619 AM EST Sat Dec 11 2021

...STORM WARNING IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST
THIS EVENING...

* WHAT...For the Storm Warning, southwest winds to 55 knots and
  waves 7 to 10 feet. For the Gale Warning, west winds to 45 knots
  becoming northwest and waves 10 to 15 feet expected.

* WHERE...St Joseph to Whitehall.

* WHEN...For the Storm Warning, until 10 AM EST this morning. 
  For the Gale Warning, from 10 AM this morning to 7 PM EST this 
  evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

LMZ848-849-111930-
/O.CON.KGRR.GL.W.0021.000000T0000Z-211212T0000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
619 AM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...West gales to 45 knots and waves 10 to 15 feet expected.

* WHERE...Whitehall to Manistee.

* WHEN...Until 7 PM EST this evening.

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

* ADDITIONAL DETAILS...Wind direction this morning will be
  southwest, then northwest this afternoon. 

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.

&&

$$
1 follow-up statement
599 
WHUS73 KGRR 111524
MWWGRR

URGENT - MARINE WEATHER MESSAGE
National Weather Service Grand Rapids MI
1024 AM EST Sat Dec 11 2021

LMZ844>847-112330-
/O.EXP.KGRR.SR.W.0001.000000T0000Z-211211T1500Z/
/O.CON.KGRR.GL.W.0022.000000T0000Z-211212T0000Z/
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
1024 AM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...
...STORM WARNING HAS EXPIRED...

* WHAT...West winds 30 to 35 knots with gusts up to 50 knots and 
  waves 10 to 14 feet.

* WHERE...St Joseph to Whitehall.

* WHEN...Until 7 PM EST 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.

&&

$$

LMZ848-849-112330-
/O.CON.KGRR.GL.W.0021.000000T0000Z-211212T0000Z/
Whitehall to Pentwater MI-Pentwater to Manistee MI-
1024 AM EST Sat Dec 11 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING...

* WHAT...Northwest winds 25 to 35 knots with gusts up to 45 
  knots and waves 9 to 14 feet.

* WHERE...Whitehall to Manistee.

* WHEN...Until 7 PM EST this evening.

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

* ADDITIONAL DETAILS...The wind and waves will slowly decrease
  over the next 12 hours.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 11, 12:14 AM ESTSpecial Weather StatementGRRBarry, Kalamazoo46 min
Dec 11, 6:19 AM ESTGale WarningGRR17 hr
Dec 11, 6:32 AM ESTHigh Wind WarningGRRAllegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 12 more5 hr
Dec 11, 6:32 AM ESTWind AdvisoryGRRAllegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 12 more12 hr
Dec 11, 8:30 AM ESTSpecial Weather StatementGRRBarry, Clinton, Gratiot, Ionia, Isabella, Montcalm60 min

Nearby

Storm Warnings in Michigan, 2021Every storm 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.