Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 76, NWS Green Bay, WI

August 11, 1995Oconto County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 11, 1995, 12:08 PM CDT for Oconto County, Wisconsin. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1995, 12:08 PM CDT (17:08 UTC)
Expired
Aug 11, 1995, 12:45 PM CDT
In force
37 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Oconto County, WI

The radar

The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 17:10 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.

The nearest sounding before it

Sault Ste Marie, MI (KY62), launched 12:00Z, 5.1 hours before the alert went out and 345 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, Sault Ste Marie, MI at 12:00Z on 1995-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 281 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, Sault Ste Marie, MI at 12:00Z on 1995-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939587897Sfc1 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
281 J/kg
Mixed-layer CIN
-200 J/kg
Mixed-layer LCL
1112 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
136 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 111710 RRA
SVRGRB
WIC083-087-111745-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
1208 PM CDT FRI AUG 11 1995
 
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST WISCONSIN
 
   ...OCONTO COUNTY...OUTAGAMIE COUNTY
 
AT 1203 PM...DOPPLER WEATHER RADAR INDICATED THAT AN AREA OF SEVERE
THUNDERSTORMS WAS LOCATED FROM LANGLADE TO KESHENA TO CLINTONVILLE.
THESE STORMS WERE MOVING TO THE SOUTHEAST AT 40 MILES AN HOUR. HEAVY
RAINS AND DAMAGING WINDS IN EXCESS OF 60 MILES AN HOUR ARE POSSIBLE IN
THESE STORMS. TOWNS IN THE PATH OF THESE STORMS ARE OCONTO FALLS...
SURING...MOUNTAIN...BLACK CREEK...AND APPLETON. TREES AND POWER LINES
WERE REPORTED DOWN IN THE ANTIGO AREA.
 
IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND...
LARGE HAIL...AND DEADLY LIGHTNING.  MOVE TO SHELTER AND
STAY AWAY FROM WINDOWS.
 
 
MJS
 
&

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

Local storm report, Aug 11, 11:57 AM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1200 PM CDT FRI AUG 11 1995

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

1140 AM    ANTIGO                    WI   POWER OUTAGES.
08/11/95   LANGLADE                       FEW POWER LINES DOWN.

1145 AM    NEAR HATLEY               WI   TREES AND POWER LINES DOWN.
08/11/95   MARATHON

KALLAS
Local storm report, Aug 11, 12:00 PM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1200 PM CDT FRI AUG 11 1995

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

1140 AM    ANTIGO                    WI   POWER OUTAGES.
08/11/95   LANGLADE                       FEW POWER LINES DOWN.

1145 AM    NEAR HATLEY               WI   TREES AND POWER LINES DOWN.
08/11/95   MARATHON

KALLAS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 11:40 AM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Shawano35 min
Aug 11, 11:47 AM CDTSevere Thunderstorm WarningGRBWaupaca43 min
Aug 11, 12:00 PM CDTSevere Thunderstorm WarningGRBLanglade, Menominee, Shawano30 min
Aug 11, 12:08 PM CDTSevere Thunderstorm WarningGRBOutagamie37 min
Aug 11, 12:33 PM CDTSevere Thunderstorm WarningGRBBrown57 min
Aug 11, 12:33 PM CDTSevere Thunderstorm WarningGRBMarinette57 min
Aug 11, 12:43 PM CDTSevere Thunderstorm WarningGRBCalumet, Outagamie, Winnebago62 min
Aug 11, 12:53 PM CDTSevere Thunderstorm WarningGRBDoor, Kewaunee, Manitowoc67 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1995Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.