Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 56, NWS Milwaukee, WI

July 22, 2023Dane County, Jefferson County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 22, 2023, 5:44 PM CDT for Dane County, Jefferson County, Wisconsin. It was in force for 46 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
Jul 22, 2023, 5:44 PM CDT (22:44 UTC)
Expired
Jul 22, 2023, 6:30 PM CDT
In force
46 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Dane County, WI, Jefferson County, WI

The radar

The Milwaukee radar (KMKX), 45 km from the middle of the area, began a volume at 22:46 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.7 hours before the alert went out and 179 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, Green Bay/Straub, WI at 12:00Z on 2023-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 488 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, Green Bay/Straub, WI at 12:00Z on 2023-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
488 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1336 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 2:34 PM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Jul 22, 2:34 PM CDT, 3 hours 10 minutes before
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Hazardous weather outlook, Jul 22, 2:10 PM CDT, 3 hours 34 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
210 PM CDT Sat Jul 22 2023

WIZ046-047-051-052-056>060-062>072-231915-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
210 PM CDT Sat Jul 22 2023

This Hazardous Weather Outlook is for portions of
east central Wisconsin, south central Wisconsin
and southeast Wisconsin.

.DAY ONE...Tonight

Scattered thunderstorms will continue through late afternoon.
There is another chance for thunderstorms tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

There are small chances for thunderstorms at times next week.

Heat indices in the middle to upper 90s are expected on Wednesday
and Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

LMZ643>646-231915-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
210 PM CDT Sat Jul 22 2023

This Hazardous Weather Outlook is for the nearshore waters
from Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Tonight

Scattered thunderstorms will continue through late afternoon.
There is another chance for thunderstorms tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

Thunderstorms are possible at times next week.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-231915-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
210 PM CDT Sat Jul 22 2023

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Tonight

Scattered thunderstorms will continue through late afternoon.
There is another chance for thunderstorms tonight.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

Thunderstorms are possible at times next week.

www.weather.gov/mkx

In the hours before

Local storm report, Jul 22, 3:33 PM CDT, 2 hours 11 minutes before
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Local storm report, Jul 22, 3:41 PM CDT, 2 hours 3 minutes before
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Special weather statement, Jul 22, 3:46 PM CDT, 1 hour 58 minutes before
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Special weather statement, Jul 22, 4:26 PM CDT, 1 hour 18 minutes before
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Special weather statement, Jul 22, 5:03 PM CDT, 41 minutes before
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Special weather statement, Jul 22, 5:28 PM CDT, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 12:14 PM CDTSpecial Weather StatementMKXSheboygan31 min
Jul 22, 12:20 PM CDTSevere Thunderstorm WarningMKXSheboygan23 min
Jul 22, 2:48 PM CDTSpecial Weather StatementMKXFond du Lac27 min
Jul 22, 3:07 PM CDTSpecial Weather StatementMKXSheboygan23 min
Jul 22, 3:23 PM CDTSpecial Weather StatementMKXOzaukee52 min
Jul 22, 3:29 PM CDTSpecial Weather StatementMKXWaukesha31 min
Jul 22, 3:46 PM CDTSpecial Weather StatementMKXSheboygan29 min
Jul 22, 4:26 PM CDTSpecial Weather StatementMKXJefferson34 min
Jul 22, 5:03 PM CDTSpecial Weather StatementMKXWaukesha27 min
Jul 22, 5:28 PM CDTSpecial Weather StatementMKXDane32 min
Jul 22, 6:24 PM CDTSpecial Weather StatementMKXJefferson51 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2023Every severe thunderstorm warning in 2023

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.