Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 36, NWS Green Bay, WI

August 3, 2023Winnebago County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 3, 2023, 7:09 PM CDT for Winnebago County, Wisconsin. It was in force for 51 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 3, 2023, 7:09 PM CDT (00:09 UTC)
Expired
Aug 3, 2023, 8:00 PM CDT
In force
51 min
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Winnebago County, WI

The radar

The Green Bay radar (KGRB), 64 km from the middle of the area, began a volume at 00:13 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 00:00Z, 0.2 hours before the alert went out and 63 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 00:00Z on 2023-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 588 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 00:00Z on 2023-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -75 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
588 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1477 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-75 m²/s²
0-3 km storm-relative helicity
-26 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.6

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 Green Bay, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 3, 6:36 PM CDT, 33 minutes earlier.

Area forecast discussion, Aug 3, 6:36 PM CDT, 33 minutes before
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Hazardous weather outlook, Aug 3, 2:44 PM CDT, 4 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
244 PM CDT Thu Aug 3 2023

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-041945-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
244 PM CDT Thu Aug 3 2023

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Rest of the Afternoon and Tonight

Isolated to scattered thunderstorm activity will continue across
eastcentral, and to a lesser extent central Wisconsin into the
early evening, especially for eastern central Wiscosnin and the
lakeshore. Wisconsin. A few storms may produce some wind gusts to
40 mph and small hail before sunset.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

There is a chance for thunderstorms Sunday into early Monday.
Some storms could be strong or severe and produce heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report hail, wind gusts over 30 mph,
and rain totals over one inch to the National Weather Service in
Green Bay.

LMZ521-522-541>543-041945-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
244 PM CDT Thu Aug 3 2023

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Rest of the Afternoon and Tonight

A chance for scattered thunderstorms continues through the late
afternoon and early evening. Some storms could produce gusty
winds to 40 mph and small hail.

.DAYS TWO THROUGH SEVEN...Friday through Thursday

There is a chance of thunderstorms on Sunday and early Monday.
Some storms could be strong or severe.

ESB/Uhlmann

In the hours before

Special weather statement, Aug 3, 5:53 PM CDT, 1 hour 16 minutes before
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Local storm report, Aug 3, 6:22 PM CDT, 47 minutes before
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Special weather statement, Aug 3, 6:38 PM CDT, 31 minutes before
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Local storm report, Aug 3, 6:39 PM CDT, 30 minutes before
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Local storm report, Aug 3, 6:40 PM CDT, 29 minutes before
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Local storm report, Aug 3, 6:57 PM CDT, 12 minutes before
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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.