Alert archive / Michigan / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 59, NWS Gaylord, MI

September 22, 2025Montmorency County, Otsego County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 22, 2025, 7:47 PM EDT for Montmorency County, Otsego County, Michigan. It was in force for 43 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
Sep 22, 2025, 7:47 PM EDT (23:47 UTC)
Expired
Sep 22, 2025, 8:30 PM EDT
In force
43 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Tornado
Possible
Hail
1.25 in
Wind
50.0 mph

Counties Montmorency County, MI, Otsego County, MI

The radar

The NCL Michigan radar (KAPX), 31 km from the middle of the area, began a volume at 23:48 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, 11.8 hours before the alert went out and 154 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 2025-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 274 joules per kilogram.LCLLFCEL10008507005003002001001 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 2025-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.193958Sfc1 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
274 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Gaylord, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 22, 7:40 PM EDT, 7 minutes earlier.

Area forecast discussion, Sep 22, 7:40 PM EDT, 7 minutes before
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Hazardous weather outlook, Sep 22, 3:01 PM EDT, 4 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Gaylord MI
301 PM EDT Mon Sep 22 2025

MIZ016>018-020>036-041-042-086>088-095>099-231915-
Emmet-Cheboygan-Presque Isle-Leelanau-Antrim-Otsego-Montmorency-
Alpena-Benzie-Grand Traverse-Kalkaska-Crawford-Oscoda-Alcona-
Manistee-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-Gladwin-Arenac-
Western Chippewa-Central Chippewa-Southeast Chippewa-
Western Mackinac-Eastern Mackinac-
Mackinac Island/Bois Blanc Island-
Beaver Island and surrounding islands-Charlevoix-
301 PM EDT Mon Sep 22 2025

This hazardous weather outlook is for Eastern Upper Michigan and
Northern Lower Michigan.

.DAY ONE...This afternoon and tonight.

There is a chance for thunderstorms this afternoon through tonight.
While severe weather is not expected, any stronger storms may
contain locally heavy downpours, gusty winds, and hail.

Areas of dense fog are possible tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a chance for thunderstorms on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, although any reports of
significant weather are appreciated.

For more information visit http://weather.gov/gaylord.

LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-231915-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-St Ignace to False Detour Channel-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-Sturgeon Pt to Alabaster MI-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-Seul Choix Point to 5NM West of Mackinac Bridge-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
Manistee to Point Betsie MI-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
St. Marys River Point Iroquois to E. Potagannissing Bay-
301 PM EDT Mon Sep 22 2025

This hazardous weather outlook is for the northern Michigan
nearshore waters of Lake Huron, Lake Michigan and Lake Superior.

.DAY ONE...This afternoon and tonight.

There is a chance for thunderstorms this afternoon through tonight.
While severe weather is not expected, any stronger storms may
contain gusty winds and hail.

Areas of dense fog are possible tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is a chance for thunderstorms on Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated, although any reports of
significant weather are appreciated.

For more information visit http://weather.gov/gaylord.

In the hours before

Local storm report, Sep 22, 7:31 PM EDT, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 22, 5:14 PM EDTSpecial Marine WarningAPX46 min
Sep 22, 5:21 PM EDTSpecial Marine WarningAPX54 min
Sep 22, 5:54 PM EDTSevere Thunderstorm WarningAPXAntrim53 min
Sep 22, 5:57 PM EDTTornado WarningAPXAntrim48 min
Sep 22, 6:36 PM EDTSevere Thunderstorm WarningAPXCharlevoix, Otsego69 min
Sep 22, 6:45 PM EDTAreal Flood AdvisoryAPXEmmet2 hr
Sep 22, 6:54 PM EDTSpecial Marine WarningAPX80 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2025Every severe thunderstorm 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.