Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 91, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Sep 4, 2012, 9:57 PM CDT for Fond du Lac County, Sheboygan 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
- Sep 4, 2012, 9:57 PM CDT (02:57 UTC)
- Expired
- Sep 4, 2012, 10:31 PM CDT
- In force
- 34 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Fond du Lac County, WI, Sheboygan County, WI
The radar
The Green Bay radar (KGRB), 76 km from the middle of the area, began a volume at 02:58 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 nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.0 hours before the alert went out and 74 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.
- Mixed-layer CAPE
- 2450 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
427
WUUS53 KMKX 050257
SVRMKX
WIC039-117-050345-
/O.NEW.KMKX.SV.W.0091.120905T0257Z-120905T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
957 PM CDT TUE SEP 4 2012
THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN FOND DU LAC COUNTY IN EAST CENTRAL WISCONSIN...
NORTHERN SHEBOYGAN COUNTY IN EAST CENTRAL WISCONSIN...
* UNTIL 1045 PM CDT
* AT 953 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 9 MILES EAST OF FOND DU LAC...
AND MOVING EAST AT 40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE
DAMAGING WINDS.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ELKHART LAKE AND PLYMOUTH AROUND 1015 PM CDT.
SHEBOYGAN AIRPORT AND SHEBOYGAN FALLS AROUND 1025 PM CDT.
HOWARDS GROVE AND KOHLER AROUND 1030 PM CDT.
SHEBOYGAN AROUND 1035 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
GREENBUSH...GLENBEULAH...JOHNSONVILLE AND HAVEN.
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 4374 8770 4369 8770 4368 8834 4394 8835
4394 8817 4394 8816 4389 8816 4389 8773
4381 8772 4377 8769
TIME...MOT...LOC 0257Z 257DEG 33KT 4382 8823
WIND...HAIL 60MPH 0.75IN
$$
DAVIS2 follow-up statements
921 WWUS53 KMKX 050315 SVSMKX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1015 PM CDT TUE SEP 4 2012 WIC039-050325- /O.CAN.KMKX.SV.W.0091.000000T0000Z-120905T0345Z/ FOND DU LAC WI- 1015 PM CDT TUE SEP 4 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FOND DU LAC COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4381 8773 4373 8816 4389 8816 4389 8773 TIME...MOT...LOC 0315Z 259DEG 31KT 4388 8800 $$ WIC117-050345- /O.CON.KMKX.SV.W.0091.000000T0000Z-120905T0345Z/ SHEBOYGAN WI- 1015 PM CDT TUE SEP 4 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN SHEBOYGAN COUNTY UNTIL 1045 PM CDT... AT 1011 PM 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 NEAR ELKHART LAKE...OR 9 MILES NORTH OF PLYMOUTH...MOVING EAST AT 35 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... HOWARDS GROVE AROUND 1030 PM CDT. OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE JOHNSONVILLE AND HAVEN. 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 4381 8773 4373 8816 4389 8816 4389 8773 TIME...MOT...LOC 0315Z 259DEG 31KT 4388 8800 WIND...HAIL 60MPH 1.00IN $$ WOOD
481 WWUS53 KMKX 050331 SVSMKX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1031 PM CDT TUE SEP 4 2012 WIC117-050340- /O.CAN.KMKX.SV.W.0091.000000T0000Z-120905T0345Z/ SHEBOYGAN WI- 1031 PM CDT TUE SEP 4 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SHEBOYGAN COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THIS STORM MAY STILL PRODUCE BRIEF HEAVY RAINFALL AND GUSTY WINDS TO 40 MPH. LAT...LON 4381 8773 4373 8816 4389 8816 4389 8773 TIME...MOT...LOC 0330Z 270DEG 31KT 4387 8781 $$ WOOD
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 7:20 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Sauk | 55 min |
| Sep 4, 7:46 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Iowa, Sauk | 59 min |
| Sep 4, 7:48 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Sauk | 42 min |
| Sep 4, 8:12 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Dodge, Green, Jefferson, Rock | 63 min |
| Sep 4, 8:16 PM CDT | Severe Thunderstorm Warning | MKX | Green, Iowa, Lafayette | 59 min |
| Sep 4, 8:35 PM CDT | Severe Thunderstorm Warning | MKX | Dodge, Jefferson, Rock, Walworth, Washington, Waukesha | 55 min |
| Sep 4, 8:45 PM CDT | Special Marine Warning | MKX | 2 hr | |
| Sep 4, 9:07 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and 1 more | 83 min |
| Sep 4, 10:01 PM CDT | Special Marine Warning | MKX | 65 min | |
| Sep 4, 10:45 PM CDT | Special Marine Warning | MKX | 45 min | |
| Sep 5, 3:05 AM CDT | Severe Thunderstorm Warning | MKX | Iowa, Lafayette | 55 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.