Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 6, NWS Milwaukee, WI

May 3, 2012Dodge County, Jefferson County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 3, 2012, 1:05 PM CDT for Dodge County, Jefferson County, Wisconsin. It was in force for 40 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 3, 2012, 1:05 PM CDT (18:05 UTC)
Expired: May 3, 2012, 1:45 PM CDT
In force: 40 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

Counties Dodge County, WI, Jefferson County, WI

The radar

The Milwaukee radar (KMKX), 28 km from the middle of the area, began a volume at 18:08 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

Time	Report	Where	Remark
May 3, 1:15 PM CDT	HAIL 1.25	Watertown, WI	HAIL FELL FOR A TEN MINUTE PERIOD
May 3, 1:25 PM CDT	HAIL 1	1 W Watertown, WI
May 3, 1:26 PM CDT	HAIL 0.25	Watertown, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.1 hours before the alert went out and 151 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: 321 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 565 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

198 
WUUS53 KMKX 031805
SVRMKX
WIC027-055-031845-
/O.NEW.KMKX.SV.W.0006.120503T1805Z-120503T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
105 PM CDT THU MAY 3 2012

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN DODGE COUNTY IN SOUTHEAST WISCONSIN...
  NORTHERN JEFFERSON COUNTY IN SOUTHEAST WISCONSIN...

* UNTIL 145 PM CDT

* AT 103 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL. 
  THIS STORM WAS LOCATED NEAR WATERLOO...AND MOVING NORTHEAST AT 30
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  WATERTOWN...WATERTOWN AIRPORT...HUSTISFORD...HUBBLETON...
  RICHWOOD...PIPERSVILLE...CLYMAN...LEBANON...ASHIPPUN AND NEOSHO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4319 8854 4316 8854 4308 8898 4316 8901
      4321 8901 4338 8856 4320 8845
TIME...MOT...LOC 1805Z 245DEG 26KT 4315 8890
WIND...HAIL <50MPH 1.25IN

$$

WIMBERLEY

3 follow-up statements

709 
WWUS53 KMKX 031810
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
110 PM CDT THU MAY 3 2012

WIC027-055-031845-
/O.CON.KMKX.SV.W.0006.000000T0000Z-120503T1845Z/
DODGE WI-JEFFERSON WI-
110 PM CDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
JEFFERSON AND SOUTHERN DODGE COUNTIES UNTIL 145 PM CDT...

AT 108 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL.  THIS
STORM WAS LOCATED 6 MILES NORTH OF LAKE MILLS...MOVING NORTHEAST AT
30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WATERTOWN AIRPORT AROUND 120 PM CDT.
  WATERTOWN AROUND 125 PM CDT.
  HUSTISFORD AROUND 145 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
RICHWOOD...PIPERSVILLE...LEBANON...ASHIPPUN AND NEOSHO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4319 8854 4316 8854 4310 8890 4322 8898
      4338 8856 4320 8845
TIME...MOT...LOC 1810Z 245DEG 26KT 4316 8885
WIND...HAIL <50MPH 1.25IN

$$

BROOKS

266 
WWUS53 KMKX 031818
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
118 PM CDT THU MAY 3 2012

WIC027-055-031845-
/O.CON.KMKX.SV.W.0006.000000T0000Z-120503T1845Z/
DODGE WI-JEFFERSON WI-
118 PM CDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
JEFFERSON AND SOUTH CENTRAL DODGE COUNTIES UNTIL 145 PM CDT...

AT 113 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL.  THIS
STORM WAS LOCATED 5 MILES WEST OF WATERTOWN AIRPORT...OR 5 MILES WEST
OF WATERTOWN...MOVING NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  WATERTOWN AROUND 125 PM CDT.
  HUSTISFORD AROUND 145 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
PIPERSVILLE...LEBANON...ASHIPPUN AND NEOSHO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4319 8851 4319 8854 4316 8854 4311 8884
      4324 8893 4338 8856 4320 8845
TIME...MOT...LOC 1818Z 245DEG 26KT 4318 8878
WIND...HAIL <50MPH 1.25IN

$$

BROOKS

052 
WWUS53 KMKX 031841
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
141 PM CDT THU MAY 3 2012

WIC027-055-031845-
/O.CON.KMKX.SV.W.0006.000000T0000Z-120503T1845Z/
DODGE WI-JEFFERSON WI-
141 PM CDT THU MAY 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
JEFFERSON AND SOUTH CENTRAL DODGE COUNTIES UNTIL 145 PM CDT...

AT 136 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM PRODUCING HALF DOLLAR SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES SOUTH OF
HUSTISFORD...OR 8 MILES NORTHEAST OF WATERTOWN...MOVING EAST AT 30
MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
NORTHEASTERN JEFFERSON AND SOUTH CENTRAL DODGE COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4319 8849 4319 8854 4318 8854 4316 8859
      4320 8862 4317 8875 4320 8878 4338 8856
      4320 8845
TIME...MOT...LOC 1841Z 251DEG 27KT 4325 8853
WIND...HAIL 60MPH 1.25IN

$$


DAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 2:09 AM CDT	Areal Flood Advisory	MKX	Fond du Lac, Green Lake, Marquette	3 hr
May 3, 8:34 AM CDT	Areal Flood Advisory	MKX	Green Lake, Marquette	3 hr
May 3, 11:41 AM CDT	Small Craft Advisory	MKX		4 hr
May 3, 12:54 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson	51 min
May 3, 1:29 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson	46 min
May 3, 1:31 PM CDT	Special Marine Warning	MKX		29 min
May 3, 1:41 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Washington	49 min
May 3, 1:53 PM CDT	Special Marine Warning	MKX		37 min
May 3, 2:15 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Ozaukee, Washington, Waukesha	30 min
May 3, 2:23 PM CDT	Special Marine Warning	MKX		12 min
May 3, 2:29 PM CDT	Special Marine Warning	MKX		31 min
May 3, 2:54 PM CDT	Special Marine Warning	MKX		66 min
May 3, 2:59 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge	46 min
May 3, 3:21 PM CDT	Severe Thunderstorm Warning	MKX	Dane	39 min
May 3, 3:52 PM CDT	Severe Thunderstorm Warning	MKX	Dodge	23 min
May 3, 3:52 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Jefferson	23 min
May 3, 4:10 PM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Waukesha	35 min
May 3, 4:17 PM CDT	Special Marine Warning	MKX		43 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012 Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.