Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 52, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 18, 2012, 6:43 PM CDT for Columbia County, Dodge County, Sauk County, Wisconsin. It was in force for 62 min. 1 report 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
- Jul 18, 2012, 6:43 PM CDT (23:43 UTC)
- Expired
- Jul 18, 2012, 7:45 PM CDT
- In force
- 62 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Columbia County, WI, Dodge County, WI, Sauk County, WI
The radar
The Milwaukee radar (KMKX), 92 km from the middle of the area, began a volume at 23:42 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 |
|---|---|---|---|
| Jul 18, 7:12 PM CDT | TSTM WND GST 55 | Fall River, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 18, 12:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.7 hours before the alert went out and 226 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
- 1900 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1674 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
733 WUUS53 KMKX 182343 SVRMKX WIC021-027-111-190045- /O.NEW.KMKX.SV.W.0052.120718T2343Z-120719T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 643 PM CDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COLUMBIA COUNTY IN SOUTH CENTRAL WISCONSIN... SOUTHWESTERN DODGE COUNTY IN SOUTHEAST WISCONSIN... NORTHEASTERN SAUK COUNTY IN SOUTH CENTRAL WISCONSIN... * UNTIL 745 PM CDT * AT 642 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM LAKE DELTON TO DE FOREST...AND MOVING EAST AT 35 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... I90/94 WI RIVER BRIDGE AND POYNETTE AROUND 650 PM CDT. PORTAGE AROUND 700 PM CDT. RIO AROUND 710 PM CDT. PARDEEVILLE AND COLUMBUS AROUND 715 PM CDT. FALL RIVER AROUND 720 PM CDT. CAMBRIA AROUND 730 PM CDT. RANDOLPH AROUND 740 PM CDT. BEAVER DAM AROUND 745 PM CDT. OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE INTERSTATE 90/94 INTERCHANGE...OTSEGO...WYOCENA...DOYLESTOWN... DANVILLE...REESEVILLE...LOWELL...FRIESLAND...SOUTH BEAVER DAM AND LEIPSIG. 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. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4364 8993 4363 8900 4328 8859 4329 8969 TIME...MOT...LOC 2343Z 272DEG 32KT 4359 8974 4326 8930 WIND...HAIL 60MPH 1.00IN $$ CRAVEN
2 follow-up statements
842 WWUS53 KMKX 190000 SVSMKX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 700 PM CDT WED JUL 18 2012 WIC021-027-111-190045- /O.CON.KMKX.SV.W.0052.000000T0000Z-120719T0045Z/ COLUMBIA WI-DODGE WI-SAUK WI- 700 PM CDT WED JUL 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN SAUK...SOUTHWESTERN DODGE AND COLUMBIA COUNTIES UNTIL 745 PM CDT... AT 656 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES EAST OF WISCONSIN DELLS TO COLUMBUS...MOVING EAST AT 40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. SEVERE THUNDERSTORMS WILL BE NEAR... PARDEEVILLE AND FALL RIVER AROUND 710 PM CDT. CAMBRIA AROUND 725 PM CDT. RANDOLPH AROUND 730 PM CDT. BEAVER DAM AROUND 735 PM CDT. OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE DANVILLE... DOYLESTOWN...REESEVILLE...LOWELL...LEIPSIG...CLYMAN...SOUTH BEAVER DAM...FRIESLAND AND ASTICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4363 8900 4328 8859 4329 8950 4364 8983 TIME...MOT...LOC 0001Z 270DEG 36KT 4363 8957 4329 8902 WIND...HAIL 60MPH 0.75IN $$ CRAVEN
885 WWUS53 KMKX 190022 SVSMKX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 722 PM CDT WED JUL 18 2012 WIC111-190032- /O.CAN.KMKX.SV.W.0052.000000T0000Z-120719T0045Z/ SAUK WI- 722 PM CDT WED JUL 18 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SAUK COUNTY IS CANCELLED... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED AREA. LAT...LON 4329 8910 4364 8958 4363 8900 4328 8859 TIME...MOT...LOC 0022Z 270DEG 36KT 4363 8928 4329 8873 $$ WIC021-027-190045- /O.CON.KMKX.SV.W.0052.000000T0000Z-120719T0045Z/ COLUMBIA WI-DODGE WI- 722 PM CDT WED JUL 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN DODGE AND EASTERN COLUMBIA COUNTIES UNTIL 745 PM CDT... AT 720 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF PARDEEVILLE TO 7 MILES NORTH OF WATERTOWN...MOVING EAST AT 40 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. A WIND GUST TO 55 MPH WAS RECORDED AT FALL RIVER IN SOUTHEAST COLUMBIA COUNTY WITH THESE STORMS. SEVERE THUNDERSTORMS WILL BE NEAR... RANDOLPH AROUND 730 PM CDT. BEAVER DAM AROUND 735 PM CDT. OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE SOUTH BEAVER DAM...FRIESLAND AND ASTICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4329 8910 4364 8958 4363 8900 4328 8859 TIME...MOT...LOC 0022Z 270DEG 36KT 4363 8928 4329 8873 WIND...HAIL 60MPH 0.75IN $$ CRAVEN
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 6:41 AM CDT | Areal Flood Advisory | MKX | Dane | 3 hr |
| Jul 18, 5:27 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 33 min |
| Jul 18, 5:34 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 32 min |
| Jul 18, 5:36 PM CDT | Severe Thunderstorm Warning | MKX | Iowa, Sauk | 39 min |
| Jul 18, 5:51 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 39 min |
| Jul 18, 6:03 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Green, Iowa, Sauk | 42 min |
| Jul 18, 6:19 PM CDT | Severe Thunderstorm Warning | MKX | Green, Lafayette | 26 min |
| Jul 18, 6:21 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 54 min |
| Jul 18, 6:41 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane, Dodge, Green, Iowa, Jefferson and 3 more | 49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.