Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 59, NWS Green Bay, WI

July 30, 2024Marathon County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 30, 2024, 8:02 PM CDT for Marathon County, Wisconsin. It was in force for 28 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 30, 2024, 8:02 PM CDT (01:02 UTC)
Expired: Jul 30, 2024, 8:30 PM CDT
In force: 28 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Marathon County, WI

The radar

The Green Bay radar (KGRB), 138 km from the middle of the area, began a volume at 01:05 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 00:00Z, 1.0 hours before the alert went out and 369 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 111 J/kg
Mixed-layer CIN: -476 J/kg
Mixed-layer LCL: 1513 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 187 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 Green Bay, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 7:01 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Jul 30, 7:01 PM CDT, 1 hour 1 minute before

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Hazardous weather outlook, Jul 30, 7:43 PM CDT, 19 minutes before

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In the hours before

Local storm report, Jul 30, 7:12 PM CDT, 50 minutes before

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Special weather statement, Jul 30, 7:26 PM CDT, 36 minutes before

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Special weather statement, Jul 30, 7:35 PM CDT, 27 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:26 PM CDT	Special Weather Statement	GRB	Langlade	49 min
Jul 30, 7:35 PM CDT	Special Weather Statement	GRB	Portage	40 min
Jul 30, 7:56 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Shawano	34 min
Jul 30, 8:31 PM CDT	Special Weather Statement	GRB	Shawano	29 min
Jul 30, 10:36 PM CDT	Special Weather Statement	GRB	Outagamie	24 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2024 Every severe thunderstorm warning in 2024

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.