Alert archive / Michigan / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 49, NWS Marquette, MI

August 7, 2026Gogebic County, Ontonagon County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Aug 7, 2026, 4:25 PM CDT for Gogebic County, Ontonagon County, Michigan. It was in force for 45 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 7, 2026, 4:25 PM CDT (21:25 UTC)
Expired
Aug 7, 2026, 5:10 PM CDT
In force
45 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

Counties Gogebic County, MI, Ontonagon County, MI

The radar

The Marquette radar (KMQT), 153 km from the middle of the area, began a volume at 21:26 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 7, 3:50 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.4 hours before the alert went out and 372 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, Minneapolis, MN at 12:00Z on 2026-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 506 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, Minneapolis, MN at 12:00Z on 2026-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 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
506 J/kg
Mixed-layer CIN
-343 J/kg
Mixed-layer LCL
1332 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 1:38 PM CDTMarine Dense Fog AdvisoryMQT5 hr
Aug 7, 3:19 PM CDTSpecial Marine WarningMQT41 min
Aug 7, 3:58 PM CDTSpecial Marine WarningMQT62 min
Aug 7, 4:07 PM CDTSpecial Marine WarningMQT53 min
Aug 7, 4:11 PM CDTSpecial Weather StatementMQTGogebic49 min
Aug 7, 4:14 PM CDTSpecial Marine WarningMQT61 min
Aug 7, 4:58 PM CDTSpecial Marine WarningMQT40 min
Aug 7, 5:02 PM CDTSpecial Marine WarningMQT58 min
Aug 7, 5:07 PM CDTSpecial Marine WarningMQT53 min
Aug 7, 5:08 PM CDTSevere Thunderstorm WarningMQTBaraga, Marquette33 min
Aug 7, 5:13 PM CDTSevere Thunderstorm WarningMQTBaraga, Houghton, Ontonagon47 min
Aug 7, 5:49 PM CDTSevere Thunderstorm WarningMQTBaraga, Houghton, Iron56 min
Aug 7, 5:58 PM CDTSevere Thunderstorm WarningMQTBaraga, Houghton62 min
Aug 7, 6:00 PM CDTSpecial Marine WarningMQT45 min
Aug 7, 6:05 PM CDTSpecial Marine WarningMQT55 min
Aug 7, 6:23 PM CDTSevere Thunderstorm WarningMQTBaraga, Marquette44 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2026Every severe thunderstorm warning in 2026

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.