Alert archive / Wisconsin / Tornado Warnings in 2002

Tornado Warning 7, NWS Milwaukee, WI

April 18, 2002Rock County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Apr 18, 2002, 4:56 PM CDT for Rock County, Wisconsin. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 18, 2002, 4:56 PM CDT (21:56 UTC)
Expired: Apr 18, 2002, 5:45 PM CDT
In force: 49 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

County Rock County, WI

The radar

The Milwaukee radar (KMKX), 67 km from the middle of the area, began a volume at 21:58 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 18, 2:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.9 hours before the alert went out and 152 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: 1362 J/kg
Mixed-layer CIN: -188 J/kg
Mixed-layer LCL: 1306 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KMKX 182156
TORMKE
WIC105-182245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
455 PM CDT THU APR 18 2002

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  ROCK COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 545 PM CDT

* AT 455 PM CDT...DOPPER RADAR INDICATED A SEVERE THUNDERSTORM 
  CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PORTION OF
  THE STORM   WAS LOCATED 16 MILES WEST OF BELOIT...OR ABOUT 11 
  MILES SOUTH OF BRODHEAD...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  BELOIT AT 515 PM CDT.
  JANESVILLE AT 520 PM CDT.
  CLINTON AT 525 PM CDT.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. ALWAYS STAY AWAY FROM
WINDOWS

LAT...LON 4252 8936 4235 8939 4251 8879 4282 8881

HENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 18, 7:17 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Sheboygan	58 min
Apr 18, 7:25 AM CDT	Special Marine Warning	MKX		65 min
Apr 18, 7:25 AM CDT	Special Marine Warning	MKX		65 min
Apr 18, 2:48 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette, Sauk	57 min
Apr 18, 3:07 PM CDT	Tornado Warning	MKX	Lafayette	23 min
Apr 18, 3:21 PM CDT	Special Marine Warning	MKX		24 min
Apr 18, 3:21 PM CDT	Special Marine Warning	MKX		24 min
Apr 18, 3:29 PM CDT	Tornado Warning	MKX	Lafayette	31 min
Apr 18, 3:31 PM CDT	Tornado Warning	MKX	Lafayette	29 min
Apr 18, 3:44 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Iowa, Sauk	61 min
Apr 18, 3:57 PM CDT	Tornado Warning	MKX	Green, Lafayette	33 min
Apr 18, 4:03 PM CDT	Tornado Warning	MKX	Columbia, Sauk	27 min
Apr 18, 4:31 PM CDT	Tornado Warning	MKX	Columbia, Sauk	29 min
Apr 18, 4:45 PM CDT	Severe Thunderstorm Warning	MKX	Green, Rock	60 min
Apr 18, 4:59 PM CDT	Severe Thunderstorm Warning	MKX	Marquette	31 min
Apr 18, 5:30 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Rock, Walworth	60 min
Apr 18, 5:32 PM CDT	Severe Thunderstorm Warning	MKX	Dane	43 min
Apr 18, 5:34 PM CDT	Special Marine Warning	MKX		56 min
Apr 18, 5:34 PM CDT	Special Marine Warning	MKX		56 min
Apr 18, 5:34 PM CDT	Special Marine Warning	MKX		56 min
Apr 18, 6:10 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson	35 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min
Apr 18, 6:33 PM CDT	Special Marine Warning	MKX		57 min

Nearby

Tornado Warnings in Wisconsin, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.