Alert archive / Michigan / Winter Storm Warnings in 2025

Winter Storm Warning 6, NWS Grand Rapids, MI

December 28, 202511 counties in Michigan

NWS Grand Rapids, MI issued this winter storm warning at Dec 28, 2025, 10:43 AM EST for 11 counties in Michigan. It took effect at Dec 29, 2025, 1:00 AM EST. It was in force for 23 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 28, 2025, 10:43 AM EST (15:43 UTC)
In effect from
Dec 29, 2025, 1:00 AM EST
Expired
Dec 30, 2025, 12:00 AM EST
In force
23 hr
Issued by
NWS Grand Rapids, MI

Counties Allegan County, MI, Clare County, MI, Kalamazoo County, MI, Lake County, MI, Mason County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 54 km from the middle of the area, began a volume at 15:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 3.7 hours before the alert went out and 339 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Alpena, MI at 12:00Z on 2025-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 12:00Z on 2025-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
418 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm 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 winter storm warning went out at Dec 28, 6:45 AM EST, 3 hours 58 minutes earlier.

Area forecast discussion, Dec 28, 6:45 AM EST, 3 hours 58 minutes before
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Hazardous weather outlook, Dec 28, 4:14 AM EST, 6 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
414 AM EST Sun Dec 28 2025

MIZ037-038-043-044-050>052-056>059-064>067-071>074-290915-
Mason-Lake-Oceana-Newaygo-Muskegon-Montcalm-Gratiot-Ottawa-Kent-
Ionia-Clinton-Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-
Calhoun-Jackson-
414 AM EST Sun Dec 28 2025

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

.DAY ONE...Today and Tonight

There is a low chance of lightning strikes this afternoon. Snow
and blowing snow will cause hazardous travel conditions after
midnight. Wind gusts over 50 mph could cause power outages late
tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Snow and blowing snow will cause hazardous travel conditions
on Monday. Wind gusts over 50 mph could cause power outages on
Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

MIZ039-040-045-046-290915-
Osceola-Clare-Mecosta-Isabella-
414 AM EST Sun Dec 28 2025

This hazardous weather outlook is for portions of central
Michigan.

.DAY ONE...Today and Tonight

Freezing rain could cause hazardous travel conditions through
early afternoon.

Snow and blowing snow will cause hazardous travel conditions
after midnight. Wind gusts over 50 mph could cause power outages
late tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Snow and blowing snow will cause hazardous travel conditions
on Monday. Wind gusts over 50 mph could cause power outages on
Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ844>849-290915-
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-
414 AM EST Sun Dec 28 2025

This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.

.DAY ONE...Today and Tonight

Storm force winds will cause hazardous conditions after midnight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Storm force winds will cause hazardous conditions on Monday along
with freezing spray.

Northwest gales and freezing spray are expected Tuesday and
Wednesday.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 28, 10:43 AM ESTWind AdvisoryGRRClinton, Gratiot, Ingham, Isabella, Jackson12 hr
Dec 28, 10:43 AM ESTWinter Weather AdvisoryGRRBarry, Calhoun, Clare, Eaton, Ionia, Kent and 3 more37 hr

Nearby

Winter Storm Warnings in Michigan, 2025Every winter storm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.