Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 198, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 20, 2012, 4:08 PM CDT for 4 counties in Wisconsin. It was in force for 52 min. 2 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
- Jun 20, 2012, 4:08 PM CDT (21:08 UTC)
- Expired
- Jun 20, 2012, 5:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Dunn County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 115 km from the middle of the area, began a volume at 21:07 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 |
|---|---|---|---|
| Jun 20, 4:38 PM CDT | TSTM WND DMG | 2 N Menomonie, WI | A LARGE TREE WAS BLOCKING COUNTY ROAD BB AND 500TH STREET, NORTH OF MENOMONIE. |
| Jun 20, 4:40 PM CDT | TSTM WND DMG | Menomonie, WI | EIGHT INCH DIAMETER TREES SNAPPED. OCCURRED ON 19TH AVE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.1 hours before the alert went out and 117 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
- 737 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 974 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 272 m²/s²
- 0-3 km storm-relative helicity
- 358 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 15.1
The text
As transmitted, in the capitals the NWS used until 2016.
771
WUUS53 KMPX 202108
SVRMPX
WIC033-091-093-109-202200-
/O.NEW.KMPX.SV.W.0198.120620T2108Z-120620T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
408 PM CDT WED JUN 20 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DUNN COUNTY IN WEST CENTRAL WISCONSIN...
PEPIN COUNTY IN WEST CENTRAL WISCONSIN...
PIERCE COUNTY IN WEST CENTRAL WISCONSIN...
EASTERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 500 PM CDT
* AT 407 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM BOYCEVILLE TO 8 MILES EAST OF
ELLSWORTH TO FRONTENAC...AND MOVING EAST AT 40 MPH.
LOCATIONS IN THE WARNING INCLUDE...
CONNORSVILLE23...
ELLSWORTH...
MENOMONIE...
DURAND...
SPRING VALLEY...
WILSON...
HERSEY...
BAY CITY...
ESDAILE...
GLENWOOD CITY...
WOODVILLE...
MARTEL...
HAGER CITY...
EMERALD...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4464 9174 4459 9182 4459 9201 4445 9205
4442 9211 4449 9230 4452 9230 4456 9233
4456 9249 4458 9255 4480 9251 4520 9226
4519 9170
TIME...MOT...LOC 2108Z 283DEG 33KT 4501 9208 4473 9231
4453 9240
WIND...HAIL 60MPH <.75IN
$$2 follow-up statements
389
WWUS53 KMPX 202137
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
437 PM CDT WED JUN 20 2012
WIC033-091-093-109-202200-
/O.CON.KMPX.SV.W.0198.000000T0000Z-120620T2200Z/
DUNN WI-PEPIN WI-ST. CROIX WI-PIERCE WI-
437 PM CDT WED JUN 20 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
PIERCE...SOUTHEASTERN ST. CROIX...PEPIN AND DUNN COUNTIES UNTIL 500
PM CDT...
AT 435 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH.
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM COLFAX TO EAU
GALLE TO STOCKHOLM...MOVING EAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
DURAND...ARKANSAW...PORCUPINE...PEPIN AND ELLA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
&&
LAT...LON 4464 9174 4459 9182 4459 9201 4445 9205
4442 9211 4449 9230 4456 9233 4457 9248
4456 9249 4458 9255 4490 9226 4518 9207
4519 9170
TIME...MOT...LOC 2137Z 283DEG 33KT 4495 9171 4467 9202
4452 9216
WIND...HAIL 60MPH <.75IN
$$995
WWUS53 KMPX 202153
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
453 PM CDT WED JUN 20 2012
WIC033-091-093-109-202208-
/O.EXP.KMPX.SV.W.0198.000000T0000Z-120620T2200Z/
DUNN WI-PEPIN WI-ST. CROIX WI-PIERCE WI-
453 PM CDT WED JUN 20 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PIERCE...SOUTHEASTERN
ST. CROIX...PEPIN AND DUNN COUNTIES WILL EXPIRE AT 500 PM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS. HOWEVER GUSTY WINDS AND TORRENTIAL RAIN ARE STILL
POSSIBLE WITH THESE THUNDERSTORMS.
LAT...LON 4464 9174 4459 9182 4459 9201 4445 9205
4442 9211 4449 9230 4456 9233 4457 9248
4456 9249 4458 9255 4490 9226 4518 9207
4519 9170
TIME...MOT...LOC 2153Z 283DEG 33KT 4491 9151 4463 9182
4449 9196
$$
DWEThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 3:55 PM CDT | Areal Flood Advisory | MPX | Barron, Dunn, Pepin, Pierce, Polk, Rusk and 1 more | 4 hr |
| Jun 20, 4:34 PM CDT | Areal Flood Advisory | MPX | Chippewa, Eau Claire, Rusk | 3 hr |
| Jun 20, 4:46 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn, Eau Claire | 44 min |
| Jun 20, 5:03 PM CDT | Special Weather Statement | MPX | Rusk | 42 min |
| Jun 20, 5:11 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 34 min |
| Jun 20, 5:31 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Eau Claire | 44 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.