Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 49, NWS Milwaukee, WI

June 17, 2001Columbia County, Sauk County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 17, 2001, 11:24 PM CDT for Columbia County, Sauk County, Wisconsin. It was in force for 66 min. 1 report 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 17, 2001, 11:24 PM CDT (04:24 UTC)
Expired: Jun 18, 2001, 12:30 AM CDT
In force: 66 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

Counties Columbia County, WI, Sauk County, WI

What was reported inside it

Time	Report	Where	Remark
Jun 17, 11:28 PM CDT	Hail 1.75	Portage, 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 4.4 hours before the alert went out and 169 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: 273 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1508 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMKX 180425
SVRMKE

WIC021-111-180530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1124 PM CDT SUN JUN 17 2001

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SAUK COUNTY IN SOUTH CENTRAL WISCONSIN
  NORTHERN COLUMBIA COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 1230 AM CDT

* AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES NORTHWEST OF WISCONSIN DELLS...OR
  ABOUT 9 MILES SOUTHEAST OF MAUSTON...MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WISCONSIN DELLS AT 1140 PM CDT.
  PORTAGE AT 1205 AM CDT.
  WYOCENA AT 1220 AM CDT.
  RIO AT 1230 AM CDT.

HAIL UP TO ONE INCH IN DIAMETER AND WINDS UP TO 60 MILES AN HOUR ARE 
EXPECTED FROM THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE UNTIL 
THE STORM HAS PASSED.

THIS STORM IS CAPABLE OF PRODUCING HEAVY RAINFALL...WHICH MAY FLOOD
LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS 
AND DO NOT CROSS FLOODED ROADS.

HENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 8:55 PM CDT	Severe Thunderstorm Warning	MKX	Sauk	50 min
Jun 17, 9:41 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane, Sauk	64 min
Jun 18, 12:25 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge	65 min
Jun 18, 1:12 AM CDT	Severe Thunderstorm Warning	MKX	Dodge, Washington, Waukesha	63 min
Jun 18, 1:12 AM CDT	Severe Thunderstorm Warning	MKX	Jefferson	63 min
Jun 18, 2:01 AM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Waukesha	59 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001 Every severe thunderstorm warning in 2001

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.