Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 83, NWS Milwaukee, WI

September 7, 2001Green County, Rock County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Sep 7, 2001, 6:59 PM CDT for Green County, Rock County, Wisconsin. It was in force for 61 min. 3 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
Sep 7, 2001, 6:59 PM CDT (23:59 UTC)
Expired
Sep 7, 2001, 8:00 PM CDT
In force
61 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Green County, WI, Rock County, WI

What was reported inside it

TimeReportWhereRemark
Sep 7, 7:10 PM CDTThunderstorm Wind 52 EMonroe, WI
Sep 7, 7:20 PM CDTThunderstorm Wind 56 EEvansville, WI
Sep 7, 7:25 PM CDTThunderstorm Wind 56 EBeloit, 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.

IssuedProductOfficeLasted
Sep 7, 6:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 12.0 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2001-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1137 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2001-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 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
1137 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.8
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

708 
WUUS53 KMKX 080000
SVRMKE
WIC021-025-045-105-080100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
659 PM CDT FRI SEP 7 2001

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ROCK COUNTY IN SOUTH CENTRAL WISCONSIN
  COLUMBIA COUNTY IN SOUTH CENTRAL WISCONSIN
  DANE COUNTY IN SOUTH CENTRAL WISCONSIN
  GREEN COUNTY IN SOUTH CENTRAL WISCONSIN

* UNTIL 800 PM CDT

* AT 659 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 11 MILES WEST OF LAKE WISCONSIN
  TO 4 MILES EAST OF MONROE...OR FROM 3 MILES SOUTHWEST OF BARABOO TO
  4 MILES EAST OF MONROE...MOVING NORTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  EVANSVILLE AT 705 PM CDT.
  OREGON AT 710 PM CDT.
  DE FOREST AT 715 PM CDT.
  MONONA AT 720 PM CDT.

IF YOU ARE IN THE PATH OF THIS STORM...YOU SHOULD PREPARE FOR 
DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY 
LIGHTNING. SEEK SHELTER IMMEDIATELY

DAMAGING WINDS IN EXCESS OF 60 MPH ARE EXPECTED FROM THESE STORMS.
SEEK SHELTER IN A STURDY STRUCTURE.

ZAJDEL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 12:35 PM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake, Marquette40 min
Sep 7, 12:35 PM CDTSevere Thunderstorm WarningMKXDane40 min
Sep 7, 12:55 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock65 min
Sep 7, 1:05 PM CDTSevere Thunderstorm WarningMKXFond du Lac55 min
Sep 7, 1:19 PM CDTSevere Thunderstorm WarningMKXDodge56 min
Sep 7, 6:07 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette53 min
Sep 7, 6:38 PM CDTSevere Thunderstorm WarningMKXSauk67 min
Sep 7, 6:59 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane61 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001Every 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.