Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 23, NWS Milwaukee, WI

May 16, 1999Dane County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 16, 1999, 11:06 PM CDT for Dane County, Wisconsin. It was in force for 59 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
May 16, 1999, 11:06 PM CDT (04:06 UTC)
Expired
May 17, 1999, 12:05 AM CDT
In force
59 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Dane County, WI

The watch it was issued in

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

IssuedProductOfficeLasted
May 16, 11:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.1 hours before the alert went out and 184 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, Davenport, at 00:00Z on 1999-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3009 joules per kilogram.LCLEL10008507005003002001001 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, Davenport, at 00:00Z on 1999-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.193958Sfc1 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
3009 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1174 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.9

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, May 16, 8:02 PM CDT, 3 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
802 PM CDT SUN MAY 16 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0625 PM    WEST BEND                 WI    60 MPH TSTM GUST
05/16/99   WASHINGTON

0635 PM    WATERFORD                 WI    64 MPH TSTM GUST
05/16/99   RACINE

0735 PM    KENOSHA                   WI    1.75 INCH HAIL
05/16/99   KENOSHA

GD
Local storm report, May 16, 8:02 PM CDT, 3 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
802 PM CDT SUN MAY 16 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0625 PM    WEST BEND                 WI    60 MPH TSTM GUST
05/16/99   WASHINGTON

0635 PM    WATERFORD                 WI    64 MPH TSTM GUST
05/16/99   RACINE

0735 PM    KENOSHA                   WI    1.75 INCH HAIL
05/16/99   KENOSHA

GD

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 7:37 PM CDTSevere Thunderstorm WarningMKXKenosha63 min
May 16, 9:15 PM CDTSevere Thunderstorm WarningMKXLafayette60 min
May 16, 9:20 PM CDTSevere Thunderstorm WarningMKXIowa60 min
May 16, 10:10 PM CDTFlash Flood WarningMKXIowa, Lafayette3 hr
May 16, 10:10 PM CDTFlash Flood WarningMKXSauk3 hr
May 16, 10:17 PM CDTSevere Thunderstorm WarningMKXGreen, Lafayette58 min
May 16, 10:43 PM CDTFlash Flood WarningMKXColumbia, Marquette3 hr
May 16, 11:23 PM CDTFlash Flood WarningMKXGreen3 hr
May 17, 12:30 AM CDTSevere Thunderstorm WarningMKXRock60 min
May 17, 1:24 AM CDTSevere Thunderstorm WarningMKXWalworth61 min
May 17, 1:30 AM CDTSevere Thunderstorm WarningMKXKenosha, Racine60 min
May 17, 4:10 AM CDTFlash Flood WarningMKXGreen, Lafayette14 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1999Every 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; the sounding from the Mesonet's radiosonde archive.