Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 69, NWS Milwaukee, WI

July 26, 2012Fond du Lac County, Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 26, 2012, 1:13 AM CDT for Fond du Lac County, Sheboygan County, Wisconsin. It was in force for 32 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
Jul 26, 2012, 1:13 AM CDT (06:13 UTC)
Expired
Jul 26, 2012, 1:45 AM CDT
In force
32 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fond du Lac County, WI, Sheboygan County, WI

The radar

The Green Bay radar (KGRB), 69 km from the middle of the area, began a volume at 06:13 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 25, 6:38 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.2 hours before the alert went out and 67 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, Green Bay/Straub, WI at 00:00Z on 2012-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2643 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, Green Bay/Straub, WI at 00:00Z on 2012-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 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
2643 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1451 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
1.2
Supercell composite
16.9

Open this sounding in Storm Lab

The text

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

458 
WUUS53 KMKX 260613
SVRMKX
WIC039-117-260645-
/O.NEW.KMKX.SV.W.0069.120726T0613Z-120726T0645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
113 AM CDT THU JUL 26 2012

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

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

* UNTIL 145 AM CDT

* AT 105 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTHWEST OF ST ANNA...OR 12 MILES EAST OF FOND DU LAC...AND MOVING
  NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELKHART LAKE AROUND 125 AM CDT.

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 4394 8817 4394 8816 4389 8816 4390 8791
      4389 8790 4374 8819 4379 8832
TIME...MOT...LOC 0613Z 231DEG 22KT 4387 8817
WIND...HAIL 60MPH 1.00IN

$$

WOOD
2 follow-up statements
109 
WWUS53 KMKX 260626
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
126 AM CDT THU JUL 26 2012

WIC039-260636-
/O.CAN.KMKX.SV.W.0069.000000T0000Z-120726T0645Z/
FOND DU LAC WI-
126 AM CDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FOND DU LAC
COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED INTO NORTHWEST 
SHEBOYGAN COUNTY. 

LAT...LON 4389 8790 4376 8815 4389 8816 4389 8815
      4390 8795 4390 8791
TIME...MOT...LOC 0626Z 238DEG 24KT 4388 8804

$$

WIC117-260645-
/O.CON.KMKX.SV.W.0069.000000T0000Z-120726T0645Z/
SHEBOYGAN WI-
126 AM CDT THU JUL 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
SHEBOYGAN COUNTY UNTIL 145 AM CDT...

AT 119 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ST ANNA...OR 10 MILES NORTHWEST
OF PLYMOUTH...MOVING NORTHEAST AT 25 MPH. PENNY SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
NORTHWESTERN SHEBOYGAN COUNTY.

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 4389 8790 4376 8815 4389 8816 4389 8815
      4390 8795 4390 8791
TIME...MOT...LOC 0626Z 238DEG 24KT 4388 8804
WIND...HAIL 60MPH 0.75IN

$$

GEHRING
498 
WWUS53 KMKX 260638
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
138 AM CDT THU JUL 26 2012

WIC117-260648-
/O.EXP.KMKX.SV.W.0069.000000T0000Z-120726T0645Z/
SHEBOYGAN WI-
138 AM CDT THU JUL 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SHEBOYGAN COUNTY
WILL EXPIRE AT 145 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED INTO MANITOWOC COUNTY.

LAT...LON 4389 8790 4376 8815 4389 8816 4389 8815
      4390 8795 4390 8791
TIME...MOT...LOC 0638Z 238DEG 24KT 4392 8794

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 8:26 PM CDTSpecial Marine WarningMKX64 min
Jul 25, 9:34 PM CDTSevere Thunderstorm WarningMKXIowa26 min
Jul 25, 9:51 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette32 min
Jul 25, 11:20 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette40 min
Jul 25, 11:39 PM CDTSevere Thunderstorm WarningMKXLafayette51 min
Jul 25, 11:39 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Washington21 min
Jul 25, 11:52 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette, Sauk38 min
Jul 26, 12:00 AM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac30 min
Jul 26, 12:10 AM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Green, Rock35 min
Jul 26, 12:35 AM CDTSevere Thunderstorm WarningMKXColumbia, Dodge, Jefferson, Rock, Walworth, Waukesha70 min
Jul 26, 12:41 AM CDTSevere Thunderstorm WarningMKXFond du Lac49 min
Jul 26, 12:53 AM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Green, Rock37 min
Jul 26, 1:24 AM CDTSpecial Marine WarningMKX96 min
Jul 26, 1:26 AM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Kenosha, Milwaukee, Ozaukee, Racine and 4 more64 min
Jul 26, 2:20 PM CDTSpecial Marine WarningMKX85 min
Jul 26, 2:47 PM CDTSevere Thunderstorm WarningMKXSheboygan28 min
Jul 26, 2:56 PM CDTSevere Thunderstorm WarningMKXOzaukee, Washington34 min
Jul 26, 3:03 PM CDTSpecial Marine WarningMKX72 min
Jul 26, 3:38 PM CDTSpecial Marine WarningMKX2 hr
Jul 26, 3:46 PM CDTSpecial Marine WarningMKX44 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.