Alert archive / Michigan / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 3, NWS Marquette, MI

May 18, 2026Baraga County, Iron County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at May 18, 2026, 3:55 AM EDT for Baraga County, Iron County, Michigan. It was in force for 35 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
May 18, 2026, 3:55 AM EDT (07:55 UTC)
Expired
May 18, 2026, 4:30 AM EDT
In force
35 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Baraga County, MI, Iron County, MI

The radar

The Marquette radar (KMQT), 69 km from the middle of the area, began a volume at 07:54 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

Minneapolis, MN (KMPX), launched 00:00Z, 7.9 hours before the alert went out and 439 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 00:00Z on 2026-05-18Temperature 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, Minneapolis, MN at 00:00Z on 2026-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.19395878Sfc1 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
1101 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 2:08 AM EDTSpecial Weather StatementMQTOntonagon52 min
May 18, 2:10 AM EDTSpecial Marine WarningMQT65 min
May 18, 2:16 AM EDTSpecial Weather StatementMQTGogebic44 min
May 18, 2:19 AM EDTSpecial Weather StatementMQTGogebic41 min
May 18, 3:40 AM EDTSpecial Weather StatementMQTIron50 min
May 18, 4:17 AM EDTSevere Thunderstorm WarningMQTBaraga, Marquette29 min
May 18, 4:22 AM EDTSpecial Marine WarningMQT53 min
May 18, 4:27 AM EDTSpecial Weather StatementMQTDickinson48 min
May 18, 4:57 AM EDTSpecial Weather StatementMQTDickinson, Menominee48 min
May 18, 5:13 AM EDTMarine Dense Fog AdvisoryMQT33 hr
May 18, 3:35 PM EDTMarine Dense Fog AdvisoryMQT16 hr
May 18, 3:35 PM EDTSmall Craft AdvisoryMQT46 hr
May 18, 7:17 PM EDTMarine Dense Fog AdvisoryMQT21 hr
May 18, 7:56 PM EDTDense Fog AdvisoryMQTAlger, Delta, Luce, Marquette, Schoolcraft10 hr

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.