Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 2, NWS Milwaukee, WI

March 30, 1998Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Mar 30, 1998, 5:58 PM CST for Sheboygan County, Wisconsin. It was in force for 47 min. 2 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
Mar 30, 1998, 5:58 PM CST (23:58 UTC)
Expired
Mar 30, 1998, 6:45 PM CST
In force
47 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Sheboygan County, WI

The radar

The Green Bay radar (KGRB), 86 km from the middle of the area, began a volume at 00:03 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.

What was reported inside it

TimeReportWhereRemark
Mar 30, 6:10 PM CSTHail 1Elkhart Lake, WI
Mar 30, 6:15 PM CSTHail 0.75Hingham, 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
Mar 30, 2:45 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 12.0 hours before the alert went out and 84 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, Green Bay/Straub, WI at 12:00Z on 1998-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 282 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, Green Bay/Straub, WI at 12:00Z on 1998-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897117Sfc1 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
282 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

112 
WUUS1 KMKE 302359 RRA
SVRMKE
WIC117-310045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
558 PM CST MON MAR 30 1998

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SHEBOYGAN COUNTY IN EAST CENTRAL WISCONSIN

* UNTIL 645 PM CST

* AT 555 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF ELKHART LAKE... MOVING
  NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PLYMOUTH AT 615 PM CDT
  SHEBOYGAN AT 630 PM CDT

IF YOU ARE IN THESE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM
AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. SEVERE
THUNDERSTORMS WILL OCCASIONALLY PRODUCE TORNADOES.

DAVIS/HENTZ

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

Special weather statement, Mar 30, 3:45 PM CST, 2 hours 13 minutes before
WIZ022-035>072-310750-

SPECIAL WEATHER STATEMENT                         ...DAY 2 OUTLOOK...
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
345 PM CST MON MAR 30 1998

...SEVERE WEATHER OUTLOOK FOR WISCONSIN FOR TUESDAY...

SEVERE THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND A FEW
TORNADOES WILL BE POSSIBLE ACROSS MUCH OF THE SOUTHERN HALF OF
WISCONSIN ON TUESDAY.  THE AREA IS ROUGHLY SOUTH OF A LINE FROM
LA CROSSE TO GREEN BAY.  THIS WOULD INCLUDE THE METRO AREAS OF
MADISON AND MILWAUKEE.  THE MAIN TIMING OF THE SEVERE WEATHER THREAT
APPEARS TO BE TUESDAY MORNING INTO TUESDAY AFTERNOON.

A POWERFUL SPRING STORM OVER THE SOUTHERN PLAINS LATE THIS MONDAY
AFTERNOON WILL TRACK IN A NORTHERLY DIRECTION TOWARD THE GREAT
LAKES OVERNIGHT.  AN OUTBREAK OF SEVERE WEATHER IS POSSIBLE ON
TUESDAY AS THIS STORM APPROACHES.  ALL INGREDIENTS NECESSARY FOR
SEVERE WEATHER WILL BE IN PLACE AND IF ENOUGH SURFACE HEATING TAKES
PLACE THIS COULD BE A SIGNIFICANT OUTBREAK.

THIS IS A PRELIMINARY ADVISORY STATEMENT.  PLEASE LISTEN FOR LATER
STATEMENTS AND FORECASTS.

JH/DAVIS
Special weather statement, Mar 30, 3:45 PM CST, 2 hours 13 minutes before
WIZ022-035>072-310750-

SPECIAL WEATHER STATEMENT                         ...DAY 2 OUTLOOK...
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
345 PM CST MON MAR 30 1998

...SEVERE WEATHER OUTLOOK FOR WISCONSIN FOR TUESDAY...

SEVERE THUNDERSTORMS WITH LARGE HAIL...DAMAGING WINDS AND A FEW
TORNADOES WILL BE POSSIBLE ACROSS MUCH OF THE SOUTHERN HALF OF
WISCONSIN ON TUESDAY.  THE AREA IS ROUGHLY SOUTH OF A LINE FROM
LA CROSSE TO GREEN BAY.  THIS WOULD INCLUDE THE METRO AREAS OF
MADISON AND MILWAUKEE.  THE MAIN TIMING OF THE SEVERE WEATHER THREAT
APPEARS TO BE TUESDAY MORNING INTO TUESDAY AFTERNOON.

A POWERFUL SPRING STORM OVER THE SOUTHERN PLAINS LATE THIS MONDAY
AFTERNOON WILL TRACK IN A NORTHERLY DIRECTION TOWARD THE GREAT
LAKES OVERNIGHT.  AN OUTBREAK OF SEVERE WEATHER IS POSSIBLE ON
TUESDAY AS THIS STORM APPROACHES.  ALL INGREDIENTS NECESSARY FOR
SEVERE WEATHER WILL BE IN PLACE AND IF ENOUGH SURFACE HEATING TAKES
PLACE THIS COULD BE A SIGNIFICANT OUTBREAK.

THIS IS A PRELIMINARY ADVISORY STATEMENT.  PLEASE LISTEN FOR LATER
STATEMENTS AND FORECASTS.

JH/DAVIS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 3:24 PM CSTSevere Thunderstorm WarningMKXIowa, Lafayette41 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1998Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.