Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 44, NWS Milwaukee, WI

May 6, 2005Jefferson County, Waukesha County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 6, 2005, 8:59 PM CDT for Jefferson County, Waukesha County, Wisconsin. It was in force for 34 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: May 6, 2005, 8:59 PM CDT (01:59 UTC)
Expired: May 6, 2005, 9:33 PM CDT
In force: 34 min
Issued by: NWS Milwaukee, WI
Area: Counties, with a storm outline in the text

Counties Jefferson County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 11 km from the middle of the area, began a volume at 01:59 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 00:00Z, 2.0 hours before the alert went out and 161 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: 3101 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 46 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 070201
SVRMKX
WIC055-133-070300-
/O.NEW.KMKX.SV.W.0044.050507T0159Z-050507T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
859 PM CDT FRI MAY 6 2005

THE NATIONAL WEATHER SERVICE IN MILWAUKEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAUKESHA COUNTY IN SOUTHEAST WISCONSIN
  JEFFERSON COUNTY IN SOUTHEAST WISCONSIN

* UNTIL 1000 PM CDT

* AT 854 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL.  THIS
  STORM WAS LOCATED 7 MILES NORTHWEST OF DOUSMAN...OR ABOUT 8 
  MILES WEST OF OKAUCHEE LAKE...AND MOVING SOUTHEAST AT 30 MPH. ANOTHER 
  POSSIBLE SEVERE THUNDERSTORM WAS LOCATED BETWEEN JOHNSON CREEK AND 
  JEFFERSON...MOVING SOUTHEAST ABOUT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DOUSMAN AROUND 905 PM CDT...
  DELAFIELD AROUND 910 PM CDT...
  WALES AROUND 915 PM CDT...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER 
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 4312 8860 4304 8863 4295 8835 4307 8828

$$

GEHRING

4 follow-up statements

000 
WWUS53 KMKX 070207
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
907 PM CDT FRI MAY 6 2005

WIC055-133-070300-
/O.CON.KMKX.SV.W.0044.000000T0000Z-050507T0300Z/
WAUKESHA-JEFFERSON-
907 PM CDT FRI MAY 6 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1000 PM CDT FOR 
JEFFERSON AND WAUKESHA COUNTIES...

AT 907 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. 
THIS STORM WAS LOCATED 2 MILES NORTHEAST OF JEFFERSON...MOVING 
SOUTHEAST AT 20 MPH. ANOTHER POSSIBLE SEVERE THUNDERSTORM WAS LOCATED
OVER INTERSTATE 94 NEAR OCONOMOWOC...MOVING SOUTHEAST AT 25 MPH. 

THE SEVERE THUNDERSTORMS WILL BE NEAR...
  HELENVILLE BY 910 PM CDT
  ROME AND SULLIVAN BY 925 PM CDT
  DOUSMAN BY 940 PM CDT
  7 MILES SOUTHWEST OF WALES BY 950 PM CDT
  NORTH PRAIRIE...GENESSEE AND GENESSEE DEPOT BY 955 PM CDT

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW 
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 4308 8882 4300 8881 4292 8861 4286 8835
      4305 8819 4310 8851

$$

GEHRING

000 
WWUS53 KMKX 070222
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
923 PM CDT FRI MAY 6 2005

WIC055-133-070300-
/O.CON.KMKX.SV.W.0044.000000T0000Z-050507T0300Z/
WAUKESHA-JEFFERSON-
923 PM CDT FRI MAY 6 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1000 PM CDT FOR 
JEFFERSON AND WAUKESHA COUNTIES...

AT 923 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. 
THIS STORM WAS LOCATED NEAR WALES...MOVING EAST AT 35 MPH. OTHER 
STORMS MOVING SOUTHEAST AROUND 20 MPH IN CENTRAL AND EASTERN JEFFERSON 
COUNTY...AND SOUTHEAST WAUKESHA COUNTY MAY ALSO PRODUCE DIME SIZE HAIL.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WAUKESHA BY 925 PM CDT
  NEW BERLIN AND 9 MILES NORTH OF BIG BEND BY 930 PM CDT
  7 MILES NORTH OF MUSKEGO BY 935 PM CDT

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

LAT...LON 4302 8871 4295 8877 4290 8860 4284 8807
      4304 8807 4306 8846

$$

GEHRING

000 
WWUS53 KMKX 070227
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
926 PM CDT FRI MAY 6 2005

WIC055-070236-
/O.CAN.KMKX.SV.W.0044.000000T0000Z-050507T0300Z/
JEFFERSON-
926 PM CDT FRI MAY 6 2005

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY IS
CANCELLED... THE THUNDERSTORMS HAVE WEAKENED OVER SOUTHEAST
JEFFERSON COUNTY. 

LAT...LON 4300 8828 4296 8829 4285 8826 4285 8807
      4304 8808 4303 8828

$$

WIC133-070300-
/O.CON.KMKX.SV.W.0044.000000T0000Z-050507T0300Z/
WAUKESHA-
926 PM CDT FRI MAY 6 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1000 PM CDT FOR
WAUKESHA COUNTY...

AT 925 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. 
THIS STORM WAS LOCATED NEAR WAUKESHA...MOVING EAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEW BERLIN AND 9 MILES NORTH OF BIG BEND BY 930 PM CDT
  7 MILES NORTH OF MUSKEGO BY 935 PM CDT

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

LAT...LON 4300 8828 4296 8829 4285 8826 4285 8807
      4304 8808 4303 8828

$$

GEHRING

000 
WWUS53 KMKX 070233
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
932 PM CDT FRI MAY 6 2005

WIC133-070242-
/O.CAN.KMKX.SV.W.0044.000000T0000Z-050507T0300Z/
WAUKESHA-
932 PM CDT FRI MAY 6 2005

...THE SEVERE THUNDERSTORM WARNING FOR WAUKESHA COUNTY IS CANCELLED...
SCATTERED THUNDERSTORMS FROM WAUKESHA TO BIG BEND HAVE WEAKENED.



LAT...LON 4300 8828 4296 8829 4285 8826 4285 8807
      4304 8808 4303 8828

$$

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 May 6, 2:30 PM CDT, 6 hours 29 minutes earlier.

Area forecast discussion, May 6, 2:30 PM CDT, 6 hours 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
230 PM CDT FRI MAY 6 2005

.DISCUSSION...FORECAST CONCERNS FOCUS ON PRECIP THREAT DURING SHORT
TERM PERIOD.  ENHANCED FORCING ASSOCD WITH LEFT EXIT REGION OF 300MB
JET PUSHING SOUTHEAST OF FORECAST AREA THIS AFTERNOON.  MRNG SHOWERS
AND THUNDERSTORMS DEPOSITED BTWN ONE HALF INCH AND THREE QUARTERS
INCH IN SOME LOCATIONS.  ATTENTION FOR REST OF THIS AFTN AND EVE
FOCUSES ON WEAK LOBE OF S/W VORTICITY OVR NRN WI AND APPROACHING
WEAK SFC BOUNDARY. ELEVATED LAPSE RATES AROUND 7 DEGREES AND SPC
MESOANALYSIS PAGE SHOWS MUCAPE VALUES OF 1500 J/KG OVR CENTRAL WI AT
18Z...AND RUC SOUNDING SHOWS FZLVL OF 9300FT.  CONVECTION BREAKING
OUT ALONG AXIS OF HIGHER DEWPTS OVR NERN WI SO WL CARRY SCT T INTO
NRN AND ERN AREAS REST OF AFT AND EARLY EVE...WHERE BEST LOW LEVEL
CONVERGENCE LOCATED...DMSHG TO CHC THIS EVE.

BEHIND THIS LAST WEAK FORCING AREA...ENHANCED SUBSIDENCE FM AXIS OF
UPR LEVEL JET SHIFTING EWD TNGT WITH RIGHT ENTRANCE REGION SETTLING
INTO WRN GREAT LAKES LTR TNGT. WINDS BECOMING NELY TNGT BEHIND
CDFNT.  WITH DEWPTS IN UPR 40S TO MID 50S AND WINDS BECOMING ONSHORE
NEAR LAKE SHORE...POTENTIAL FOR FOG DVLPG BUT LWRG DEWPTS MAY DRY
OUT ATMOSPHERE BEFORE HAND.  WL ADD PATCHY FOG ONLY IN ERN AREAS FOR
NOW.

DEWPTS OVERDONE BY GUIDANCE FOR LTR TNGT INTO SAT.  MUCH MORE STABLE
CONDITIONS ACROSS FORECAST AREA ON SATURDAY SO PULLED POPS IN
CENTRAL AND ERN AREAS BUT LEFT IN EAST...CLOSER TO VICINITY OF
STRENGTHENING WMFNT OVR IA...NRN IL.  LOW LEVEL JET OF 40 TO 50 KTS
FOCUSED INTO SRN MN/W CNTRL WI SAT NIGHT AND THICKNESS FIELD MAY
CARRY SOME OF THE NIGHT TIME CONVECTION INTO CENTRAL/SRN WI LATE IN
THE NIGHT INTO SUN MRNG.  THICKNESS RIDGE SETS UP OVER WI LATER SUN
INTO SUN NIGHT AND SECOND WEAKER LLJ WITH LOW LEVEL MOISTURE FLUX
CONV...HENCE WL CONT WITH MID LEVEL POPS AT THIS TIME FRAME WITH
BEST THREAT OF WIDESPREAD PRECIP MON INTO MON NGT.

ALL EXTENDED GUIDANCE INCLUDING GFS...UKMO...ECMWF AND CANADIAN IN
GOOD AGREEMENT ON CARRYING S/W TROF THRU WESTERN GREAT LAKES ON
MON/TUE TIME FRAME...HWVR UKMT AND ECMWF TAKE FRONTAL BOUNDARY WELL
SOUTH INTO THE MID MS VALLEY WHILE GFS HOLDS FRONT FARTHER NORTH.
LATEST GFS DOES CONTINUES TREND IN SLOWING SYSTEM DOWN EARLY NEXT
WEEK...HENCE WL LEAN TWD GFS SOLUTION BUT PREFER FARTHER SOUTHWARD
PENETRATION OF COOL FRONT.  HENCE WL BEEF UP POPS TO LKLY CATEGORY
AS MAIN S/W TROF MOVES THRU MON INTO MON NGT.

5H HEIGHT ANOMOLY SLIGHTLY ABV NORMAL WITH FLATTENING UPSTREAM TROF
CENTERED ON 05/14...HENCE UNSETTLED WEATHER WILL CONTINUE THROUGH
THE LATER PERIODS OF NEXT WEEK.  FAIR AGREEMENT IN GFS ENSEMBLES IN
EARLY PERIODS OF EXTENDED PERIOD.  FRONTAL BOUNDARY OVER CENTRAL MS
VLY EXPCD TO PUSH NORTHWARD WED INTO THU RETURNING PRECIP THREAT
ACRS SRN WI BY THU.  ENSEMBLE POPS QUITE HIGH FOR WED NGT INTO THU
TIME FRAME.

&&

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

&&

MBK

Hazardous weather outlook, May 6, 5:00 AM CDT, 15 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
500 AM CDT FRI MAY 6 2005

WIZ046-047-051-052-056>060-062>072-061600-
COLUMBIA-DANE-DODGE-FOND DU LAC-GREEN-GREEN LAKE-IOWA-JEFFERSON-
KENOSHA-LAFAYETTE-MARQUETTE-MILWAUKEE-OZAUKEE-RACINE-ROCK-SAUK-
SHEBOYGAN-WALWORTH-WASHINGTON-WAUKESHA-
500 AM CDT FRI MAY 6 2005

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS TODAY AND TONIGHT. THE
THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE CRITERIA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE WILL BE A CHANCE OF THUNDERSTORMS ACROSS SOUTHERN WISCONSIN
SATURDAY THROUGH MONDAY EVENING. THERE WILL BE ANOTHER CHANCE
OF THUNDERSTORMS WEDNESDAY THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION SHOULD NOT BE NEEDED TODAY OR TONIGHT.

&&

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

LMZ643>646-665-061600-
SHEBOYGAN WI TO WINTHROP HARBOR ILLINOIS
500 AM CDT FRI MAY 6 2005

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

&&

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

ZAJDEL

In the hours before

Local storm report, May 6, 7:21 PM CDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
721 PM CDT FRI MAY 06 2005

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

0717 PM     HAIL             NORTH PRAIRIE           42.94N 88.40W
05/06/2005  1.00 INCH        WAUKESHA           WI   TRAINED SPOTTER

0715 PM     HAIL             6 S ROCKDALE            42.89N 89.03W
05/06/2005  0.88 INCH        DANE               WI   TRAINED SPOTTER

0705 PM     HAIL             WALES                   43.00N 88.38W
05/06/2005  0.75 INCH        WAUKESHA           WI   LAW ENFORCEMENT

            DIME SIZED HAIL

&&

PSPEICHE

Local storm report, May 6, 7:29 PM CDT, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
729 PM CDT FRI MAY 06 2005

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

0704 PM     HAIL             DOUSMAN                 43.01N 88.47W
05/06/2005  0.88 INCH        WAUKESHA           WI   PUBLIC

            NICKEL SIZE HAIL AT HWY GG AND RUE PARC

0718 PM     HAIL             NORTH PRAIRIE           42.94N 88.40W
05/06/2005  0.75 INCH        WAUKESHA           WI   PUBLIC

            PEA TO PENNY SIZE HAIL FELL BETWEEN 709 AND 718 PM

&&

PSPEICHE

Local storm report, May 6, 7:30 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
730 PM CDT FRI MAY 06 2005

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

0726 PM     HAIL             8 E FORT ATKINSON       42.93N 88.68W
05/06/2005  0.75 INCH        JEFFERSON          WI   AMATEUR RADIO

            DIME SIZED HAIL 8 E OF FORT ATKINSON

&&

PSPEICHE

Local storm report, May 6, 7:39 PM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
739 PM CDT FRI MAY 06 2005

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

0720 PM     HAIL             MUKWONAGO               42.87N 88.33W
05/06/2005  0.88 INCH        WAUKESHA           WI   PUBLIC

            GROUND COVERED WITH HAIL IN SOME AREAS...LEAVES KNOCKED
            OFF OF TREES

&&

PSPEICHE

Local storm report, May 6, 8:15 PM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
815 PM CDT FRI MAY 06 2005

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

0810 PM     HAIL             WATERLOO                43.18N 88.99W
05/06/2005  0.88 INCH        JEFFERSON          WI   LAW ENFORCEMENT

&&

DHANSING

Local storm report, May 6, 8:43 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
843 PM CDT FRI MAY 06 2005

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

0842 PM     HAIL             1 N LAKE MILLS          43.09N 88.91W
05/06/2005  1.00 INCH        JEFFERSON          WI   NWS EMPLOYEE

&&

DHANSING

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:12 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson, Rock	70 min
May 6, 7:26 PM CDT	Severe Thunderstorm Warning	MKX	Racine, Waukesha	52 min
May 6, 8:16 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson	44 min
May 6, 8:29 PM CDT	Severe Thunderstorm Warning	MKX	Walworth	33 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.