Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 140, NWS Milwaukee, WI

July 27, 2006Fond du Lac County, Sheboygan County, Washington County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 27, 2006, 4:37 PM CDT for Fond du Lac County, Sheboygan County, Washington County, Wisconsin. It was in force for 25 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 27, 2006, 4:37 PM CDT (21:37 UTC)
Expired: Jul 27, 2006, 5:02 PM CDT
In force: 25 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

Counties Fond du Lac County, WI, Sheboygan County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 79 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 95 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: 70 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 1067 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 32 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 27, 3:40 PM CDT, 57 minutes earlier.

Area forecast discussion, Jul 27, 3:40 PM CDT, 57 minutes before

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Hazardous weather outlook, Jul 27, 4:02 PM CDT, 35 minutes before

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In the hours before

Local storm report, Jul 27, 3:45 PM CDT, 52 minutes before

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Local storm report, Jul 27, 3:48 PM CDT, 49 minutes before

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Local storm report, Jul 27, 3:57 PM CDT, 40 minutes before

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Local storm report, Jul 27, 3:58 PM CDT, 39 minutes before

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Local storm report, Jul 27, 4:25 PM CDT, 12 minutes before

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Local storm report, Jul 27, 4:28 PM CDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 1:45 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson	45 min
Jul 27, 2:52 PM CDT	Tornado Warning	MKX	Waukesha	23 min
Jul 27, 2:56 PM CDT	Flash Flood Warning	MKX	Dane, Jefferson, Waukesha	3 hr
Jul 27, 3:17 PM CDT	Severe Thunderstorm Warning	MKX	Waukesha	28 min
Jul 27, 3:52 PM CDT	Special Marine Warning	MKX		75 min
Jul 27, 3:55 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine	65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2006 Every severe thunderstorm warning in 2006

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.