Alert archive / Michigan / Special Marine Warnings in 2021

Special Marine Warning 34, NWS Grand Rapids, MI

August 24, 2021

NWS Grand Rapids, MI issued this special marine warning at Aug 24, 2021, 4:24 PM EDT. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 24, 2021, 4:24 PM EDT (20:24 UTC)
Expired
Aug 24, 2021, 5:30 PM EDT
In force
66 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Hail
0.0 in
Wind
34.0 mph

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Rapids, MI wrote its last area forecast discussion before this special marine warning went out at Aug 24, 3:15 PM EDT, 1 hour 9 minutes earlier.

Area forecast discussion, Aug 24, 3:15 PM EDT, 1 hour 9 minutes before
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Hazardous weather outlook, Aug 24, 3:22 PM EDT, 1 hour 2 minutes before
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
322 PM EDT Tue Aug 24 2021

MIZ037>040-043>046-050>052-056>059-064>067-071>074-250830-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
322 PM EDT Tue Aug 24 2021

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

.DAY ONE...This Afternoon and Tonight

Thunderstorms will be possible through tonight. Severe storms are
not likely, but some could become locally severe. The strongest
storms will be capable of heavy rain, wind gusts to 60 mph, and
large hail up around the size of a quarter.

Hot and humid conditions this afternoon will push heat index values
into the 90s to around 100.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorms will be possible each day from Wednesday through
Sunday. Warm and humid conditions will persist into the weekend
with heat index values rising into the 90s at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible through tonight.

LMZ844>849-250830-
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-
322 PM EDT Tue Aug 24 2021

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

.DAY ONE...This Afternoon and Tonight

Thunderstorms will be possible through tonight. Severe storms are
not likely, but some could become locally severe. The strongest
storms will be capable of heavy rain, wind gusts to 60 mph, and
large hail up around the size of a quarter.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorms will be possible each day from Wednesday through
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible through tonight.

DUKE NJJ

In the hours before

Local storm report, Aug 24, 3:56 PM EDT, 28 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 2:06 PM EDTSpecial Marine WarningGRR114 min
Aug 24, 3:48 PM EDTSevere Thunderstorm WarningGRRMason, Oceana42 min
Aug 24, 3:52 PM EDTSpecial Marine WarningGRR98 min
Aug 24, 4:43 PM EDTSevere Thunderstorm WarningGRRNewaygo49 min
Aug 24, 4:45 PM EDTSevere Thunderstorm WarningGRRLake45 min
Aug 24, 4:53 PM EDTSevere Thunderstorm WarningGRRNewaygo40 min
Aug 24, 5:10 PM EDTSevere Thunderstorm WarningGRRKent, Mecosta, Montcalm, Osceola50 min
Aug 24, 5:56 PM EDTSevere Thunderstorm WarningGRRClare, Isabella64 min
Aug 24, 6:06 PM EDTSevere Thunderstorm WarningGRRClinton, Gratiot, Ionia, Montcalm84 min
Aug 24, 6:13 PM EDTSpecial Marine WarningGRR92 min
Aug 24, 6:48 PM EDTSevere Thunderstorm WarningGRRBarry, Clinton, Eaton, Ingham, Ionia42 min
Aug 24, 7:38 PM EDTAreal Flood AdvisoryGRRCalhoun, Jackson, Kalamazoo, Van Buren10 hr
Aug 24, 7:41 PM EDTSpecial Marine WarningGRR54 min

Nearby

Special Marine Warnings in Michigan, 2021Every special marine 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.