Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 13, NWS Green Bay, WI

May 12, 2000Calumet County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 12, 2000, 11:09 AM CDT for Calumet County, Wisconsin. It was in force for 51 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
May 12, 2000, 11:09 AM CDT (16:09 UTC)
Expired
May 12, 2000, 12:00 PM CDT
In force
51 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Calumet County, WI

The radar

The Green Bay radar (KGRB), 47 km from the middle of the area, began a volume at 16:12 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
May 12, 11:28 AM CDTHail 2Stockbridge, 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 12:00Z, 4.2 hours before the alert went out and 45 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 2000-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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, Green Bay/Straub, WI at 12:00Z on 2000-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
15 J/kg
Mixed-layer CIN
-508 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGRB 121611
SVRGRB
WIC015-121700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
1109 AM CDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CALUMET COUNTY IN WISCONSIN

* UNTIL NOON CDT

* AT 1109 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND SPOTTER
  REPORTS INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL. THE STORM 
  WAS NEAR LAKE BUTTE DES MORTS. THAT PLACES THE STORM 6 MILES 
  NORTHWEST OF OSHKOSH. THE STORM WAS MOVING EAST AT 55 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...
  LAKE WINNEBAGO BY 1120 AM CDT.
  QUINNEY BY 1125 AM CDT.
  CHILTON BY 1135 AM CDT.

THIS STORM WILL PRODUCE DAMAGING HAIL AND STRONG WINDS. BEFORE THE STORM 
ARRIVES...MOVE YOUR VEHICLE INTO THE GARAGE. BE SURE YOU ARE NOT 
CAUGHT OUTDOORS WHEN THE STORM HITS.

BOATERS ON AREA LAKES SHOULD GET OFF THE LAKE BEFORE THE STORM
ARRIVES.

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 10:05 AM CDTSevere Thunderstorm WarningGRBWaushara40 min
May 12, 10:43 AM CDTSevere Thunderstorm WarningGRBWaushara32 min
May 12, 10:50 AM CDTSevere Thunderstorm WarningGRBWinnebago40 min
May 12, 11:28 AM CDTSevere Thunderstorm WarningGRBManitowoc47 min
May 12, 1:59 PM CDTSevere Thunderstorm WarningGRBWaupaca61 min
May 12, 2:22 PM CDTSevere Thunderstorm WarningGRBOutagamie48 min
May 12, 2:28 PM CDTSevere Thunderstorm WarningGRBBrown62 min
May 12, 2:38 PM CDTSevere Thunderstorm WarningGRBShawano62 min
May 12, 3:08 PM CDTSevere Thunderstorm WarningGRBOconto47 min
May 12, 3:16 PM CDTSevere Thunderstorm WarningGRBDoor, Kewaunee64 min
May 12, 4:25 PM CDTSevere Thunderstorm WarningGRBCalumet, Manitowoc50 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2000Every severe thunderstorm warning in 2000

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.