Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 104, NWS Milwaukee, WI

June 30, 2005Walworth County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 30, 2005, 4:08 AM CDT for Walworth County, Wisconsin. It was in force for 40 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 30, 2005, 4:08 AM CDT (09:08 UTC)
Expired: Jun 30, 2005, 4:48 AM CDT
In force: 40 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

County Walworth County, WI

The radar

The Milwaukee radar (KMKX), 28 km from the middle of the area, began a volume at 09:10 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.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 12:50 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 9.1 hours before the alert went out and 197 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: 1049 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 1913 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 224 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMKX 300908
SVRMKX
WIC127-301015-
/O.NEW.KMKX.SV.W.0104.050630T0908Z-050630T1015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
408 AM CDT THU JUN 30 2005

THE NATIONAL WEATHER SERVICE IN MILWAUKEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WALWORTH COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 515 AM CDT

* AT 401 AM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF   
PRODUCING NICKEL SIZE HAIL AND STRONG WINDS TO 60 MPH. THIS STORM 
WAS LOCATED 6 MILES WEST OF DARIEN...OR ABOUT 10 MILES WEST OF 
DELAVAN LAKE...AND MOVING NORTHEAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  POTTER LAKE...ELKHORN AND EAST TROY.

LAT...LON 4273 8875 4253 8873 4282 8828 4283 8869

$$

REM

3 follow-up statements

000 
WWUS53 KMKX 300929
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
429 AM CDT THU JUN 30 2005

WIC127-301015-
/O.CON.KMKX.SV.W.0104.000000T0000Z-050630T1015Z/
WALWORTH-
429 AM CDT THU JUN 30 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 515 AM CDT FOR
WALWORTH COUNTY...

AT 427 AM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
THIS STORM WAS LOCATED NEAR HONEY CREEK...OR ABOUT NEAR EAST TROY...
MOVING NORTHEAST AT 55 MPH.

OTHER SEVERE THUNDERSTORMS WERE OVER NORTH CENTRAL WALWORTH COUNTY.

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND LARGE 
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 
AWAY FROM WINDOWS

LAT...LON 4271 8870 4250 8859 4261 8832 4283 8831
      4283 8869

$$

HENTZ

000 
WWUS53 KMKX 300940
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
439 AM CDT THU JUN 30 2005

WIC127-301015-
/O.CON.KMKX.SV.W.0104.000000T0000Z-050630T1015Z/
WALWORTH-
439 AM CDT THU JUN 30 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 515 AM CDT FOR
EASTERN WALWORTH COUNTY...

AT 436 AM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
THIS STORM WAS LOCATED NEAR EAST TROY...MOVING NORTHEAST AT 20 MPH.

LAT...LON 4272 8849 4253 8839 4249 8830 4283 8831
      4283 8854

$$

HENTZ

000 
WWUS53 KMKX 300948
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
447 AM CDT THU JUN 30 2005

WIC127-300957-
/O.CAN.KMKX.SV.W.0104.000000T0000Z-050630T1015Z/
WALWORTH-
447 AM CDT THU JUN 30 2005

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WALWORTH COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORMS HAVE EXITED WALWORTH COUNTY.

LAT...LON 4272 8849 4253 8839 4249 8830 4283 8831
      4283 8854

$$

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.

NWS Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 30, 3:04 AM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jun 30, 3:04 AM CDT, 1 hour 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
304 AM CDT THU JUN 30 2005

.DISCUSSION...FORECAST FOCUS ON PRECIPITATION CHANCES THIS
MORNING...AND AGAIN SUNDAY NIGHT INTO MONDAY.

.IN THE SHORT TERM...
MODELS HAVE COLD FRONT IN VICINITY OF MILWAUKEE AT 12Z THIS
MORNING. THEREFORE...WILL KEEP CHANCE TSTMS GOING UNTIL ABOUT 14Z
OR SO. THEN SOUTHERN WI GETS DRY SLOTTED. STRONG SUNSHINE...
ISENTROPIC SINKING...MIXING AND PROGGED 850MB TEMPS OF 18 TO 20
OVER SOUTHEAST CORNER IMPLIES MAX TEMPS OF MID 80S WEST OF MADISON
TO AROUND 90 SOUTHEAST TIP. ALL MOS-TYPE GUIDANCE ALSO SUGGESTS THIS.

THE SUBSIDENCE FOR AFTERNOON HOURS WILL HELP CAP OUT THE ATMOSPHERE
TO PREVENT CONTINUING CHANCES OF SHOWERS.

SECONDARY UPPER TROF AND SURFACE COLD FRONT SLATED TO PASS THRU
THURSDAY NIGHT. ISENTROPIC SINKING BETWEEN 850 AND 500 MB WILL
DRY OUT ANY PCPN WHICH DEVELOPS ABOVE 500MB. JUST SOME BROKEN TO
OVERCAST CLOUDS FOR LATE THURSDAY NIGHT.

HIGH PRESSURE MOVES ACROSS GREAT LAKES REGION ON SATURDAY...BUT NEXT
CHANCE FOR TSTMS SUNDAY NIGHT INTO MONDAY WITH NEXT SURFACE FRONT AND
RETURN MOISTURE.

.MKX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

KAPELA

Hazardous weather outlook, Jun 29, 8:45 PM CDT, 7 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
845 PM CDT WED JUN 29 2005

WIZ046-047-051-052-056>060-062>072-301100-
COLUMBIA-DANE-DODGE-FOND DU LAC-GREEN-GREEN LAKE-IOWA-JEFFERSON-
KENOSHA-LAFAYETTE-MARQUETTE-MILWAUKEE-OZAUKEE-RACINE-ROCK-SAUK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
845 PM CDT WED JUN 29 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL AND SOUTHEAST
WISCONSIN.

.DAY ONE...TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN
WISCONSIN. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY
THREAT...WITH THE POSSIBILITY OF AN ISOLATED TORNADO WITH THE MOST
INTENSE STORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

VERY WARM TEMPERATURES WILL KEEP THE HEAT INDEX TO NEAR 90 THURSDAY.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO THE DAY THURSDAY
MAINLY IN THE FAR EAST. DAMAGING WINDS WILL BE THE PRIMARY THREAT.

THERE IS A CHANCE OF THUNDERSTORMS ON SUNDAY AND INDEPENDENCE
DAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND TONIGHT.

&&

DETAILED WEATHER INFORMATION IS AVAILABLE ON THE NWS MILWAUKEE
WEB-PAGE...WEATHER.GOV/MILWAUKEE     /LOWER CASE/

LMZ643>646-665-301100-
SHEBOYGAN WI TO WINTHROP HARBOR ILLINOIS-
845 PM CDT WED JUN 29 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WISCONSIN NEARSHORE WATERS
OF LAKE MICHIGAN.

.DAY ONE...TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS. THE MAIN
THREAT WILL BE WINDS OVER 50 KNOTS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS INTO THE DAY
THURSDAY. THE MAIN THREAT WILL BE WINDS OVER 50 KNOTS.

THERE IS A CHANCE OF THUNDERSTORMS ON SUNDAY AND INDEPENDENCE DAY.

SMALL CRAFT ADVISORIES MAY BE NEEDED WEDNESDAY NIGHT THROUGH
THURSDAY NIGHT FOR WINDS OF AROUND 25 KNOTS OR MORE...AND ROUGH
WATERS.

&&

DETAILED WEATHER INFORMATION AVAILABLE ON THE NWS MILWAUKEE
WEB-PAGE...WEATHER.GOV/MILWAUKEE     /LOWER CASE/

NJ

In the hours before

Special weather statement, Jun 30, 3:20 AM CDT, 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
320 AM CDT THU JUN 30 2005

WIZ046-047-051-052-056>060-062>072-300912-
COLUMBIA-DANE-DODGE-FOND DU LAC-GREEN-GREEN LAKE-IOWA-JEFFERSON-
KENOSHA-LAFAYETTE-MARQUETTE-MILWAUKEE-OZAUKEE-RACINE-ROCK-SAUK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
320 AM CDT THU JUN 30 2005

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 AM CDT FOR SOUTH
CENTRAL AND SOUTHEAST WISCONSIN...

CLUSTERS OF POTENTIALLY SEVERE THUNDERSTORMS WILL CONTINUE MOVING
EASTWARD AT 40 MPH ACROSS SOUTHEAST WISCONSIN DURING THE EARLY
MORNING HOURS.

AT 320 AM HUNDERSTORMS EXTENDED FROM SHEBOYGAN...OZAUKEE...
MILWAUKEE...AND WALWORTH COUNTIES.  THE STORMS WILL PUSH INTO THE
RACINE AND KNOSHA AREAS BY 4 AM.

THE STORMS WERE PRODUCING BRIEF VERY HEAVY RAINS AND WINDS OF 40
MPH...ALONG WI8TH SOME HAIL.

THE STORMS WERE EXITING AREAS WEST OF MADISON.

HENTZ

Special weather statement, Jun 30, 3:20 AM CDT, 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
320 AM CDT THU JUN 30 2005

WIZ046-047-051-052-056>060-062>072-300912-
COLUMBIA-DANE-DODGE-FOND DU LAC-GREEN-GREEN LAKE-IOWA-JEFFERSON-
KENOSHA-LAFAYETTE-MARQUETTE-MILWAUKEE-OZAUKEE-RACINE-ROCK-SAUK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
320 AM CDT THU JUN 30 2005

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 AM CDT FOR SOUTH
CENTRAL AND SOUTHEAST WISCONSIN...

CLUSTERS OF POTENTIALLY SEVERE THUNDERSTORMS WILL CONTINUE MOVING
EASTWARD AT 40 MPH ACROSS SOUTHEAST WISCONSIN DURING THE EARLY
MORNING HOURS.

AT 320 AM THUNDERSTORMS EXTENDED FROM SHEBOYGAN...OZAUKEE...
MILWAUKEE...AND WALWORTH COUNTIES.  THE STORMS WILL PUSH INTO THE
RACINE AND KENOSHA AREAS BY 4 AM.

THE STORMS WERE PRODUCING BRIEF VERY HEAVY RAINS AND WINDS OF 40
MPH...ALONG WI8TH SOME HAIL.

THE STORMS WERE EXITING AREAS WEST OF MADISON.

HENTZ

Special weather statement, Jun 30, 3:26 AM CDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
326 AM CDT THU JUN 30 2005

WIZ051-052-058>060-064>066-069>072-300900-
DODGE-FOND DU LAC-JEFFERSON-KENOSHA-MILWAUKEE-OZAUKEE-RACINE-ROCK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
326 AM CDT THU JUN 30 2005

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 AM CDT...

CLUSTERS OF POTENTIALLY SEVERE THUNDERSTORMS CONTINUE ROLLING
ACROSS SOUTHEAST WISCONSIN. THE POTENTIAL REMAINS FOR SOME OF
THESE STORMS TO PRODUCE LARGE HAIL AND DAMAGING WINDS...SO A
SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT.

WIZ046-047-056-057-062-063-067-068-300900-
COLUMBIA-DANE-GREEN-GREEN LAKE-IOWA-LAFAYETTE-MARQUETTE-SAUK-
326 AM CDT THU JUN 30 2005

...SEVERE THUNDERSTORM WATCH CANCELLED...

STRONG STORMS HAVE MOVED EAST OF THE AREA...SO THE SEVERE
THUNDERSTORM WATCH PREVIOUSLY IN EFFECT UNTIL 5 AM HAS BEEN
CANCELLED.

NJ

Local storm report, Jun 30, 3:43 AM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
343 AM CDT THU JUN 30 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0330 AM     HAIL             PORT WASHINGTON         43.39N 87.88W
06/30/2005  0.75 INCH        OZAUKEE            WI   PUBLIC

            UNKNOWN DAMAGE AT THIS TIME. FREQUENT LIGHTNING AND HEAVY
            RAIN.

&&

PJS

Local storm report, Jun 30, 3:53 AM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
353 AM CDT THU JUN 30 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0352 AM     HAIL             4 SE SULLIVAN           42.97N 88.53W
06/30/2005  0.50 INCH        WAUKESHA           WI   NWS EMPLOYEE

&&

PJS

Special weather statement, Jun 30, 3:55 AM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
355 AM CDT THU JUN 30 2005

WIZ046-047-051-052-056>060-062>072-300945-
COLUMBIA-DANE-DODGE-FOND DU LAC-GREEN-GREEN LAKE-IOWA-JEFFERSON-
KENOSHA-LAFAYETTE-MARQUETTE-MILWAUKEE-OZAUKEE-RACINE-ROCK-SAUK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
355 AM CDT THU JUN 30 2005

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 AM CDT FOR PORTIONS
OF SOUTHEAST WISCONSIN...

CLUSTERS OF POTENTIALLY SEVERE THUNDERSTORMS WILL CONTINUE MOVING
EASTWARD AT 40 MPH ACROSS PARTS OF SOUTHEAST WISCONSIN DURING THE
EARLY MORNING HOURS.

AT 355 AM THUNDERSTORMS EXTENDED ACROSS PORTIONS OF
WAUKESHA...RACINE...KENOSHA...ROCK AND WALWORTH COUNTIES.

THE STORMS WERE PRODUCING BRIEF VERY HEAVY RAINS AND WINDS OF UP TO
50 MPH...ALONG WITH SOME 1/2 INCH HAIL.

THE STORMS HAVE EXITED MUCH OF SOUTH CENTRAL WISCONSIN AND THE
FOND DU LAC AREAS.

HENTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 11:44 PM CDT	Severe Thunderstorm Warning	MKX	Iowa, Sauk	64 min
Jun 30, 12:18 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Marquette	44 min
Jun 30, 12:42 AM CDT	Severe Thunderstorm Warning	MKX	Iowa, Lafayette	53 min
Jun 30, 12:52 AM CDT	Severe Thunderstorm Warning	MKX	Columbia, Green Lake	41 min
Jun 30, 2:42 AM CDT	Severe Thunderstorm Warning	MKX	Dodge, Jefferson, Waukesha	36 min
Jun 30, 2:51 AM CDT	Severe Thunderstorm Warning	MKX	Rock, Walworth	41 min
Jun 30, 4:01 AM CDT	Severe Thunderstorm Warning	MKX	Rock	21 min
Jun 30, 4:35 AM CDT	Severe Thunderstorm Warning	MKX	Waukesha	27 min
Jun 30, 4:47 AM CDT	Severe Thunderstorm Warning	MKX	Milwaukee	25 min
Jun 30, 4:48 AM CDT	Special Marine Warning	MKX		87 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2005 Every severe thunderstorm warning in 2005

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.