Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 81, NWS Milwaukee, WI

October 29, 1996Lafayette County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Oct 29, 1996, 2:55 PM CST for Lafayette County, Wisconsin. It was in force for 20 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
Oct 29, 1996, 2:55 PM CST (20:55 UTC)
Expired
Oct 29, 1996, 3:15 PM CST
In force
20 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 122 km from the middle of the area, began a volume at 20:55 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, 8.9 hours before the alert went out and 260 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 1996-10-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1996-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1440 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
299 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

Special weather statement, Oct 29, 11:15 AM CST, 3 hours 40 minutes before
WIZ011>013-019>022-030>072-300400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1100 AM CST TUE OCT 29 1996

...THUNDERSTORMS WITH DAMAGING WIND GUSTS POSSIBLE LATER TODAY AND
THIS EVENING ACROSS SOUTHERN AND CENTRAL WISCONSIN...

AN UNUSUALLY STRONG STORM SYSTEM PASSING WEST OF WISCONSIN TODAY WILL
BRING A MODERATE THREAT OF SEVERE WEATHER TO THE STATE LATER TODAY
AND THIS EVENING.  THE MAIN THREAT APPEARS TO BE DAMAGING WIND GUSTS
FROM FAST MOVING THUNDERSTORMS...WITH THE MOST VULNERABLE AREA BEING
THE SOUTHWEST CORNER OF WISCONSIN.

A WARM FRONT WILL MOVE NORTH TO SOUTHERN WISCONSIN LATER THIS AFTERNOON
WHILE A COLD FRONT RACES NORTHEAST OUT OF MISSOURI.  THE INTENSE
DYNAMICS ASSOCIATED WITH THIS SYSTEM ARE CAPABLE OF CAUSING A SQUALL
LINE OF THUNDERSTORMS WITH DAMAGING WINDS TO FORM ALONG THE COLD FRONT
THEN RACE INTO WISCONSIN AFTER 3 OR 4 PM FROM THE SOUTHWEST.

THE STORMS COULD MAINTAIN STRENGTH THIS EVENING AS THEY MOVE NORTH
INTO NORTHEAST WISCONSIN.

THIS IS A POTENTIALLY DANGEROUS SITUATION.  LISTEN FOR POSSIBLE SEVERE
WEATHER WATCHES AND WARNINGS LATER TODAY AND THIS EVENING...AND BE
PREPARED TO TAKE COVER IF THREATENING WEATHER APPROACHES.

MEADE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 29, 2:51 PM CSTSevere Thunderstorm WarningMKXIowa24 min
Oct 29, 4:04 PM CSTSevere Thunderstorm WarningMKXDane26 min
Oct 29, 4:23 PM CSTSevere Thunderstorm WarningMKXDodge37 min
Oct 29, 4:28 PM CSTSevere Thunderstorm WarningMKXWaukesha32 min
Oct 29, 4:40 PM CSTSevere Thunderstorm WarningMKXWalworth35 min
Oct 29, 4:52 PM CSTSevere Thunderstorm WarningMKXJefferson38 min
Oct 29, 4:56 PM CSTSevere Thunderstorm WarningMKXWaukesha34 min
Oct 29, 5:03 PM CSTSevere Thunderstorm WarningMKXRacine27 min
Oct 29, 5:07 PM CSTSevere Thunderstorm WarningMKXMilwaukee23 min
Oct 29, 5:14 PM CSTSevere Thunderstorm WarningMKXKenosha31 min
Oct 29, 5:26 PM CSTSevere Thunderstorm WarningMKXJefferson, Rock, Walworth34 min
Oct 29, 5:26 PM CSTSevere Thunderstorm WarningMKXDodge34 min
Oct 29, 5:50 PM CSTSevere Thunderstorm WarningMKXKenosha, Racine40 min
Oct 29, 5:50 PM CSTSevere Thunderstorm WarningMKXMilwaukee, Waukesha40 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996Every severe thunderstorm warning in 1996

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.