Alert archive / Wisconsin / Tornado Warnings in 2026

Tornado Warning 69, NWS Milwaukee, WI

June 24, 2026Green Lake County, Marquette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 24, 2026, 5:48 PM CDT for Green Lake County, Marquette County, Wisconsin. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 24, 2026, 5:48 PM CDT (22:48 UTC)
Expired
Jun 24, 2026, 6:15 PM CDT
In force
27 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Green Lake County, WI, Marquette County, WI

The radar

The Milwaukee radar (KMKX), 104 km from the middle of the area, began a volume at 22:51 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
Jun 24, 1:55 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.8 hours before the alert went out and 366 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 2026-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 386 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2026-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
386 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

750 
WFUS53 KMKX 242248
TORMKX
WIC047-077-242315-
/O.NEW.KMKX.TO.W.0069.260624T2248Z-260624T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
548 PM CDT Wed Jun 24 2026

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  Southwestern Green Lake County in south central Wisconsin...
  Southeastern Marquette County in south central Wisconsin...

* Until 615 PM CDT.

* At 547 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Montello, or 17 miles south of Wautoma, moving
  southeast at 30 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Montello around 555 PM CDT.

Other locations impacted by this tornadic thunderstorm include Glen
Oak and Marquette.

Other landmarks included are the following Location Puckaway Lake.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4373 8909 4368 8919 4368 8935 4382 8946
      4386 8939
TIME...MOT...LOC 2247Z 309DEG 26KT 4382 8937 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

WAGNER
1 follow-up statement
246 
WWUS53 KMKX 242255
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
555 PM CDT Wed Jun 24 2026

WIC047-077-242315-
/O.CON.KMKX.TO.W.0069.000000T0000Z-260624T2315Z/
Green Lake WI-Marquette WI-
555 PM CDT Wed Jun 24 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
SOUTHWESTERN GREEN LAKE AND SOUTHEASTERN MARQUETTE COUNTIES...

At 555 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Montello, or 18 miles northeast of Portage, moving
southeast at 30 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
southwestern Green Lake and southeastern Marquette Counties,
including the following locations... Marquette.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4373 8909 4368 8919 4368 8932 4381 8940
      4384 8934
TIME...MOT...LOC 2255Z 309DEG 26KT 4378 8931 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.50 IN

$$

WAGNER

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 8:58 AM CDTAreal Flood AdvisoryMKXMilwaukee, Racine, Waukesha3 hr
Jun 24, 1:48 PM CDTSpecial Weather StatementMKXIowa42 min
Jun 24, 2:17 PM CDTSevere Thunderstorm WarningMKXDane, Iowa43 min
Jun 24, 2:39 PM CDTSpecial Weather StatementMKXLafayette51 min
Jun 24, 2:48 PM CDTSevere Thunderstorm WarningMKXDane, Green, Rock42 min
Jun 24, 2:53 PM CDTSevere Thunderstorm WarningMKXLafayette52 min
Jun 24, 3:07 PM CDTTornado WarningMKXLafayette38 min
Jun 24, 3:12 PM CDTSevere Thunderstorm WarningMKXRock33 min
Jun 24, 3:19 PM CDTSpecial Weather StatementMKXRock26 min
Jun 24, 3:22 PM CDTSevere Thunderstorm WarningMKXDane, Rock38 min
Jun 24, 3:26 PM CDTTornado WarningMKXRock49 min
Jun 24, 3:39 PM CDTSpecial Weather StatementMKXGreen36 min
Jun 24, 3:50 PM CDTSevere Thunderstorm WarningMKXGreen, Rock40 min
Jun 24, 3:52 PM CDTSevere Thunderstorm WarningMKXRock, Walworth38 min
Jun 24, 4:14 PM CDTFlash Flood WarningMKXGreen, Rock, Walworth3 hr
Jun 24, 4:15 PM CDTTornado WarningMKXWalworth30 min
Jun 24, 4:27 PM CDTSpecial Weather StatementMKXWalworth48 min
Jun 24, 4:38 PM CDTSpecial Weather StatementMKXIowa37 min
Jun 24, 4:39 PM CDTSpecial Weather StatementMKXWalworth51 min
Jun 24, 5:02 PM CDTSpecial Weather StatementMKXGreen Lake, Marquette28 min
Jun 24, 5:11 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette49 min
Jun 24, 5:24 PM CDTSpecial Weather StatementMKXDane, Iowa51 min
Jun 24, 5:28 PM CDTSevere Thunderstorm WarningMKXDane, Iowa46 min
Jun 24, 5:30 PM CDTTornado WarningMKXFond du Lac, Green Lake45 min
Jun 24, 5:37 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette49 min
Jun 24, 5:38 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette40 min
Jun 24, 5:53 PM CDTSevere Thunderstorm Warning Considerable damage threatMKXFond du Lac, Green Lake67 min
Jun 24, 6:01 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette59 min
Jun 24, 6:06 PM CDTSevere Thunderstorm WarningMKXGreen, Lafayette54 min
Jun 24, 6:12 PM CDTTornado WarningMKXDodge, Fond du Lac, Green Lake48 min
Jun 24, 6:18 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane22 min
Jun 24, 6:27 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac63 min
Jun 24, 6:50 PM CDTTornado WarningMKXDodge40 min
Jun 24, 6:55 PM CDTSevere Thunderstorm WarningMKXColumbia, Dodge35 min

Nearby

Tornado Warnings in Wisconsin, 2026Every tornado warning in 2026Tornadoes 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.