Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 44, NWS Milwaukee, WI

June 15, 2002Fond du Lac County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 15, 2002, 2:59 PM CDT for Fond du Lac County, Wisconsin. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 15, 2002, 2:59 PM CDT (19:59 UTC)
Expired: Jun 15, 2002, 3:30 PM CDT
In force: 31 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

County Fond du Lac County, WI

The radar

The Green Bay radar (KGRB), 86 km from the middle of the area, began a volume at 20:02 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 85 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 32 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 
WUUS53 KMKX 151959
SVRMKE
WIC039-152030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
258 PM CDT SAT JUN 15 2002

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FOND DU LAC COUNTY IN EAST CENTRAL WISCONSIN

* UNTIL 330 PM CDT

* AT 258 PM CDT...WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM
  WITH 3/4 INCH HAIL IN THE CITY OF FOND DU LAC...MOVING SOUTHEAST 
  AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CAMPBELLSPORT AT 315 PM CDT.

HAIL UP TO 3/4 OF AN INCH IN DIAMETER AND WINDS GREATER THAN 60 MILES
AN HOUR ARE EXPECTED FROM THIS STORM. IF YOU ARE IN THE STORMS
PATH...SEEK SHELTER INDOORS.

LAT...LON 4386 8838 4374 8856 4357 8829 4368 8816

GEHRING

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.

NWS Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 2:30 PM CDT, 29 minutes earlier.

Area forecast discussion, Jun 15, 2:30 PM CDT, 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
230 PM CDT SAT JUN 15 2002

FCST FOCUS IS STILL ON EFFECTS OF UPR LOW LINGERING OVR RGN...THEN ON
VIGOROUS SHORT WAVE FOR SUN NIGHT INTO MON AM.

IN THE SHORT TERM...MORE STORMS THIS AFTN UNDER THE COLD POOL WITH
UPR LOW. THESE SHUD AGN WIND DOWN FAIRLY QUICKLY THIS EVE WITH
LOSS OF SFC HEATING.

FCST SNDGS A BIT DRIER FOR SUNDAY...BUT CYCLONIC FLO STILL IN PLACE
WITH MORE COLD AIR ALF COMING DOWN BEHIND UPR LO AS IT SLOWLY LIFTS
INTO SRN QUEBEC. THIS SHUD STILL BE ENUF FOR AT LEAST SOME SHWRS OR
STORMS.

ETA STILL BRINGS A 22 UNIT VORT MAX DOWN THRU NRN WI SUN NGT/MON
AM. WL LV IN POPS FOR SUN NGT AND HOLD ONTO MORN CHC FOR MON ACROSS
MAINLY SE 1/2.

UPR LO FINALLY LIFTS FAR ENOUGH TO THE NE FOR RDG TO BUILD IN MON NGT
INTO TUE.

TMP GUID LOOKS RSNBL FOR THE MOST PART.

.MKX...NONE.

NJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 2:30 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee, Washington	60 min
Jun 15, 2:39 PM CDT	Special Marine Warning	MKX		66 min
Jun 15, 2:39 PM CDT	Special Marine Warning	MKX		66 min
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 3:47 PM CDT	Special Marine Warning	MKX		2 hr
Jun 15, 4:54 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee	36 min
Jun 15, 5:31 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Racine	44 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min
Jun 15, 5:57 PM CDT	Special Marine Warning	MKX		108 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2002 Every severe thunderstorm warning in 2002

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.