Alert archive / Wisconsin / Flash Flood Warnings in 1998

Flash Flood Warning 6, NWS Milwaukee, WI

June 28, 1998Dane County, Green County, Rock County, Wisconsin

NWS Milwaukee, WI issued this flash flood warning at Jun 28, 1998, 2:02 AM CDT for Dane County, Green County, Rock County, Wisconsin. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 28, 1998, 2:02 AM CDT (07:02 UTC)
Expired
Jun 28, 1998, 6:00 AM CDT
In force
4 hr
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Dane County, WI, Green County, WI, Rock County, WI

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 7.0 hours before the alert went out and 162 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 1998-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4171 joules per kilogram.LCLLFCEL10008507005003002001001 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 1998-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
4171 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1286 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMKE 280707 RRA
FFWMKE
WIC025-045-105-281100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
202 AM CDT SUN JUN 28 1998

* FLASH FLOOD WARNING FOR
  DANE COUNTY - SOUTH CENTRAL WISCONSIN
  GREEN COUNTY - SOUTH CENTRAL WISCONSIN
  ROCK COUNTY - SOUTH CENTRAL WISCONSIN

* UNTIL 600 AM CDT

* A LINE OF STRONG THUNDERSTORMS WITH HEAVY RAINFALL WILL BE MOVING
  OVER DANE...GREEN...AND ROCK COUNTIES.  BETWEEN 1 TO 2 INCHES OF
  ADDITIONAL RAINFALL AND LOCALLY MORE CAN BE EXPECTED BETWEEN
  200 AM AND 400 AM.

AT 200 AM CDT DOPPLER RADAR INDICATED ANOTHER LINE OF STRONG STORMS
WITH VERY HEAVY RAINFALL WILL BE MOVING OVER AN AREA THAT HAS
RECIEVED 1 TO 2 INCHES OF RAIN EARLIER TONIGHT.  THE GROUND IS
ALREADY SATURATED FROM STORMS EARLIER TONIGHT AND FROM THE LAST
SEVERAL DAYS.

LEAVE FLOOD PRONE AND LOW LYING AREAS AND SEEK HIGH GROUND
IMMEDIATELY. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
~
TH

What forecasters said that day

The local office's own words before this flash flood 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, Jun 28, 1:43 AM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN
143 AM CDT SUN JUN 28 1998

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

1000 PM    BARABOO                   WI   WIND DAMAGE
06/27/98   SAUK                           NUMEROUS TREES AND WIRES
                                          DOWN ACROSS THE COUNTY.

1100 PM    PORTAGE                   WI   WIND DAMAGE
06/27/98   COLUMBIA                       2 OR 3 TREES DOWN IN THE
                                          COUNTY.

1100 PM    DODGEVILLE                WI   WIND DAMAGE
06/27/98   IOWA                           TRESS DOWN.  NO POWER IN
                                          THE CITY OF DODGEVILLE.

1110 PM    MADISON                   WI   WIND DAMAGE
06/27/98   DANE                           20 TO 25 TREES DOWN ACROSS
                                          COUNTY.

1150 PM    JANESVILLE                WI   WIND DAMAGE
06/27/98   ROCK                           MANY TREES DOWN.

1238 AM    LAKE GENEVA               WI   60 MPH WIND GUST
06/28/98   WALWORTH

HENTZ
Local storm report, Jun 28, 1:43 AM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN
143 AM CDT SUN JUN 28 1998

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

1000 PM    BARABOO                   WI   WIND DAMAGE
06/27/98   SAUK                           NUMEROUS TREES AND WIRES
                                          DOWN ACROSS THE COUNTY.

1100 PM    PORTAGE                   WI   WIND DAMAGE
06/27/98   COLUMBIA                       2 OR 3 TREES DOWN IN THE
                                          COUNTY.

1100 PM    DODGEVILLE                WI   WIND DAMAGE
06/27/98   IOWA                           TRESS DOWN.  NO POWER IN
                                          THE CITY OF DODGEVILLE.

1110 PM    MADISON                   WI   WIND DAMAGE
06/27/98   DANE                           20 TO 25 TREES DOWN ACROSS
                                          COUNTY.

1150 PM    JANESVILLE                WI   WIND DAMAGE
06/27/98   ROCK                           MANY TREES DOWN.

1238 AM    LAKE GENEVA               WI   60 MPH WIND GUST
06/28/98   WALWORTH

HENTZ
Local storm report, Jun 28, 1:45 AM CDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN
145 AM CDT SUN JUN 28 1998

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

1240 AM    ELKHORN                   WI   WIND DAMAGE
06/28/98   WALWORTH                       SEVERAL TREES DOWN

HENTZ
Local storm report, Jun 28, 1:45 AM CDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN
145 AM CDT SUN JUN 28 1998

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

1240 AM    ELKHORN                   WI   WIND DAMAGE
06/28/98   WALWORTH                       SEVERAL TREES DOWN

HENTZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 9:07 PM CDTSevere Thunderstorm WarningMKXSauk93 min
Jun 27, 9:54 PM CDTSevere Thunderstorm WarningMKXDane, Iowa91 min
Jun 27, 9:54 PM CDTSevere Thunderstorm WarningMKXColumbia, Marquette91 min
Jun 27, 10:22 PM CDTSevere Thunderstorm WarningMKXGreen Lake78 min
Jun 27, 11:36 PM CDTSevere Thunderstorm WarningMKXRock64 min
Jun 28, 12:00 AM CDTSevere Thunderstorm WarningMKXWalworth65 min
Jun 28, 12:30 AM CDTSevere Thunderstorm WarningMKXKenosha, Racine60 min
Jun 28, 1:19 AM CDTFlash Flood WarningMKXIowa, Sauk4 hr
Jun 28, 1:19 AM CDTFlash Flood WarningMKXLafayette4 hr
Jun 28, 1:24 AM CDTSevere Thunderstorm WarningMKXIowa, Lafayette61 min
Jun 28, 2:06 AM CDTSevere Thunderstorm WarningMKXDane, Green59 min

Nearby

Flash Flood Warnings in Wisconsin, 1998Every flash flood warning in 1998

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.