Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 59, NWS Milwaukee, WI

June 10, 1999Columbia County, Dodge County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 10, 1999, 5:56 PM CDT for Columbia County, Dodge County, Wisconsin. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 10, 1999, 5:56 PM CDT (22:56 UTC)
Expired: Jun 10, 1999, 7:00 PM CDT
In force: 64 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

Counties Columbia County, WI, Dodge County, WI

The radar

The Milwaukee radar (KMKX), 65 km from the middle of the area, began a volume at 22:57 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.

What was reported inside it

Time	Report	Where	Remark
Jun 10, 6:06 PM CDT	Thunderstorm Wind	Fall River, WI
Jun 10, 6:28 PM CDT	Thunderstorm Wind	Columbus, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 10, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 137 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: 1348 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1077 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Local storm report, Jun 10, 5:12 PM CDT, 44 minutes before

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Local storm report, Jun 10, 5:12 PM CDT, 44 minutes before

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Local storm report, Jun 10, 5:20 PM CDT, 36 minutes before

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Local storm report, Jun 10, 5:20 PM CDT, 36 minutes before

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Local storm report, Jun 10, 5:44 PM CDT, 12 minutes before

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Local storm report, Jun 10, 5:44 PM CDT, 12 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
Jun 10, 1:33 PM CDT	Severe Thunderstorm Warning	MKX	Washington	42 min
Jun 10, 1:46 PM CDT	Severe Thunderstorm Warning	MKX	Sauk	59 min
Jun 10, 2:23 PM CDT	Flash Flood Warning	MKX	Sauk	67 min
Jun 10, 2:23 PM CDT	Flash Flood Warning	MKX	Sauk	3 hr
Jun 10, 2:38 PM CDT	Severe Thunderstorm Warning	MKX	Racine, Walworth, Waukesha	67 min
Jun 10, 2:44 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson	61 min
Jun 10, 3:16 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Washington	59 min
Jun 10, 3:53 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Ozaukee	67 min
Jun 10, 4:21 PM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	64 min
Jun 10, 4:58 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Waukesha	62 min
Jun 10, 6:23 PM CDT	Severe Thunderstorm Warning	MKX	Walworth	62 min
Jun 10, 6:35 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine	65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1999 Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.