Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 59, NWS Green Bay, WI

August 7, 1996Marinette County, Oconto County, Shawano County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 7, 1996, 4:02 AM CDT for Marinette County, Oconto County, Shawano County, Wisconsin. It was in force for 93 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
Aug 7, 1996, 4:02 AM CDT (09:02 UTC)
Expired
Aug 7, 1996, 5:35 AM CDT
In force
93 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Marinette County, WI, Oconto County, WI, Shawano County, WI

The radar

The Green Bay radar (KGRB), 63 km from the middle of the area, began a volume at 09:04 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
Aug 7, 4:30 AM CDTThunderstorm WindBonduel, WI
Aug 7, 5:10 AM CDTThunderstorm WindOconto, 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, 9.0 hours before the alert went out and 66 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 00:00Z on 1996-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3575 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 00:00Z on 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
3575 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRB 070902
SVRGRB
WIC037-075-083-115-071035-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
402 AM CDT WED AUG 7 1996

THE NATIONAL WEATHER SERVICE IN GREEN BAY WI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 535 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST WISCONSIN

   ...FLORENCE COUNTY
   ...MARINETTE COUNTY
   ...OCONTO COUNTY
   ...EASTERN SHAWANO COUNTY
 
AT 400 AM...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM
NEAR IRON RIVER MICHIGAN TO CRANDON TO ANTIGO.  THE STORMS WERE MOVING
TO THE EAST AT 45 MPH.

THE STORMS WILL AFFECT THE TOWNS OF LAONA AND TOWNSEND BY 420 AM.  THE
STORMS WILL NOT AFFECT THE CITIES OF OCONTO AND MARINETTE UNTIL AFTER
500 AM.

DAMAGING WINDS UP TO 75 MPH ARE LIKELY WITH THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL.
IF YOU ARE IN THE PATH OF THIS STORM...GO TO A PLACE OF SAFETY.
IFX OUTDOORS...MOVE TO A STRONG BUILDING.

JML/JS/DI

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 1:54 AM CDTSevere Thunderstorm WarningGRBLincoln, Marathon76 min
Aug 7, 2:11 AM CDTSevere Thunderstorm WarningGRBOneida, Vilas79 min
Aug 7, 2:29 AM CDTSevere Thunderstorm WarningGRBWood61 min
Aug 7, 2:54 AM CDTTornado WarningGRBMarathon46 min
Aug 7, 2:55 AM CDTSevere Thunderstorm WarningGRBPortage50 min
Aug 7, 3:03 AM CDTSevere Thunderstorm WarningGRBLincoln32 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBLanglade, Shawano, Waupaca95 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBForest95 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBWaushara95 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBLanglade, Shawano, Waupaca75 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBWaushara75 min
Aug 7, 3:15 AM CDTSevere Thunderstorm WarningGRBForest75 min
Aug 7, 3:27 AM CDTSevere Thunderstorm WarningGRBOneida, Vilas33 min
Aug 7, 3:48 AM CDTSevere Thunderstorm WarningGRBPortage62 min
Aug 7, 3:48 AM CDTSevere Thunderstorm WarningGRBPortage27 min
Aug 7, 4:02 AM CDTSevere Thunderstorm WarningGRBFlorence93 min
Aug 7, 4:16 AM CDTSevere Thunderstorm WarningGRBOutagamie, Winnebago74 min
Aug 7, 4:40 AM CDTSevere Thunderstorm WarningGRBBrown, Calumet65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996Every severe thunderstorm warning in 1996

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.