Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Milwaukee, WI

June 24, 2021Fond du Lac County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 24, 2021, 9:27 AM CDT for Fond du Lac County, Wisconsin. It was in force for 33 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, 2021, 9:27 AM CDT (14:27 UTC)
Expired
Jun 24, 2021, 10:00 AM CDT
In force
33 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Fond du Lac County, WI

The radar

The Milwaukee radar (KMKX), 88 km from the middle of the area, began a volume at 14:28 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

Davenport, (KDVN), launched 12:00Z, 2.5 hours before the alert went out and 286 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, Davenport, at 12:00Z on 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 389 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, Davenport, at 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 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
389 J/kg
Mixed-layer CIN
-353 J/kg
Mixed-layer LCL
1072 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

719 
WUUS53 KMKX 241427
SVRMKX
WIC039-241500-
/O.NEW.KMKX.SV.W.0005.210624T1427Z-210624T1500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Milwaukee/Sullivan WI
927 AM CDT Thu Jun 24 2021

The National Weather Service in Milwaukee/Sullivan has issued a

* Severe Thunderstorm Warning for...
  Central Fond du Lac County in east central Wisconsin...

* Until 1000 AM CDT.

* At 927 AM CDT, a severe thunderstorm was located near Rosendale, or
  7 miles west of North Fond Du Lac, moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Fond Du Lac, North Fond Du Lac, Oakfield, Rosendale, Southern Lake
  Winnebago, Taycheedah, Lamartine, Eldorado, Eden, Peebles,
  Johnsburg and Lagoda.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4371 8872 4383 8872 4388 8828 4366 8828
TIME...MOT...LOC 1427Z 268DEG 35KT 4378 8863 

HAIL...1.00IN
WIND...60MPH
 
$$

CMILLER
2 follow-up statements
419 
WWUS53 KMKX 241444
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
944 AM CDT Thu Jun 24 2021

WIC039-241500-
/O.CON.KMKX.SV.W.0005.000000T0000Z-210624T1500Z/
Fond du Lac WI-
944 AM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR CENTRAL FOND DU LAC COUNTY...

At 944 AM CDT, a severe thunderstorm was located over Fond Du Lac,
moving east at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Fond Du Lac, North Fond Du Lac, Oakfield, Southern Lake Winnebago,
Taycheedah, Lamartine, Eden, Peebles and Johnsburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4370 8866 4386 8849 4388 8828 4366 8828
TIME...MOT...LOC 1444Z 268DEG 35KT 4379 8839 

HAIL...1.00IN
WIND...<50MPH
 
$$

CMILLER
421 
WWUS53 KMKX 241450
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
950 AM CDT Thu Jun 24 2021

WIC039-241500-
/O.EXP.KMKX.SV.W.0005.000000T0000Z-210624T1500Z/
Fond du Lac WI-
950 AM CDT Thu Jun 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FOND DU LAC COUNTY
WILL EXPIRE AT 1000 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4370 8866 4386 8849 4388 8828 4366 8828
TIME...MOT...LOC 1450Z 268DEG 35KT 4379 8832 

$$

CMILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:26 AM CDTSpecial Weather StatementMKXFond du Lac, Green Lake, Marquette34 min
Jun 24, 8:36 AM CDTSpecial Weather StatementMKXSheboygan54 min
Jun 24, 9:07 AM CDTSpecial Weather StatementMKXFond du Lac, Green Lake53 min
Jun 24, 9:37 AM CDTSpecial Weather StatementMKXSheboygan23 min
Jun 24, 10:03 AM CDTSpecial Weather StatementMKXFond du Lac, Ozaukee, Sheboygan27 min
Jun 24, 10:13 AM CDTSpecial Weather StatementMKXIowa47 min
Jun 24, 10:59 AM CDTSpecial Weather StatementMKXColumbia46 min
Jun 24, 11:08 AM CDTSpecial Weather StatementMKXSheboygan37 min
Jun 24, 11:38 AM CDTAreal Flood AdvisoryMKXColumbia, Dodge2 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021Every severe thunderstorm warning in 2021

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.