Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 9, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Apr 12, 2014, 3:38 PM CDT for Vernon County, Wisconsin. It was in force for 52 min. 7 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
- Apr 12, 2014, 3:38 PM CDT (20:38 UTC)
- Expired
- Apr 12, 2014, 4:30 PM CDT
- In force
- 52 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Vernon County, WI
The radar
The La Crosse radar (KARX), 45 km from the middle of the area, began a volume at 20:41 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 |
|---|---|---|---|
| Apr 12, 3:50 PM CDT | HAIL 0.75 | 1 N Viroqua, WI | TRAINED SPOTTER REPORTED DIME SIZE HAIL AT THE VIROQUA AIRPORT |
| Apr 12, 3:52 PM CDT | HAIL 0.5 | 1 N Viroqua, WI | |
| Apr 12, 3:59 PM CDT | HAIL 1 | Valley, WI | |
| Apr 12, 4:05 PM CDT | HAIL 0.5 | 1 Wsw Hillsboro, WI | COOPERATIVE OBSERVER MEASURED PEA TO THREE EIGHTHS OF AN INCH SIZE HAIL |
| Apr 12, 4:07 PM CDT | HAIL 0.5 | 1 Wsw Hillsboro, WI | COOPERATIVE OBSERVER MEASURED A HALF INCH SIZE HAIL |
| Apr 12, 4:11 PM CDT | HAIL 0.75 | Hillsboro, WI | PUBLIC ESTIMATED THREE FOURTHS OF AN INCH SIZE HAIL IN THE CITY OF HILLSBORO |
| Apr 12, 4:20 PM CDT | HAIL 0.75 | Hillsboro, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.6 hours before the alert went out and 220 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2231 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
245
WUUS53 KARX 122038
SVRARX
WIC123-122130-
/O.NEW.KARX.SV.W.0009.140412T2038Z-140412T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
338 PM CDT SAT APR 12 2014
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
VERNON COUNTY IN SOUTHWEST WISCONSIN...
* UNTIL 430 PM CDT
* AT 337 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER VIROQUA...
MOVING EAST AT 55 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
LA FARGE AROUND 350 PM CDT.
HILLSBORO AROUND 410 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE JERSEY
VALLEY COUNTY PARK...MOUNT TABOR...WILDCAT MOUNTAIN STATE PARK...
LIBERTY...TRIPPVILLE...BLOOMINGDALE...LIBERTY POLE...NEWRY...ONTARIO
AND NEWTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4355 9067 4349 9067 4344 9117 4368 9120
4373 9090 4373 9031 4356 9031
TIME...MOT...LOC 2037Z 256DEG 49KT 4359 9090
HAIL...1.00IN
WIND...<50MPH
$$
RRS4 follow-up statements
072
WWUS53 KARX 122048
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
348 PM CDT SAT APR 12 2014
WIC123-122130-
/O.CON.KARX.SV.W.0009.000000T0000Z-140412T2130Z/
VERNON WI-
348 PM CDT SAT APR 12 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR VERNON COUNTY...
AT 347 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED JUST NORTHWEST OF
VIROQUA...MOVING EAST AT 40 MPH. THIS STORM WILL PASS BETWEEN
VIROQUA AND WESTBY BY 4 PM.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
THIS SEVERE STORM WILL BE NEAR...
LA FARGE AROUND 405 PM CDT.
HILLSBORO AROUND 425 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE JERSEY
VALLEY COUNTY PARK...MOUNT TABOR...WILDCAT MOUNTAIN STATE PARK...
LIBERTY...TRIPPVILLE...BLOOMINGDALE...LIBERTY POLE...NEWRY...ONTARIO
AND NEWTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4355 9067 4349 9067 4344 9117 4368 9120
4373 9090 4373 9031 4356 9031
TIME...MOT...LOC 2047Z 256DEG 34KT 4360 9084
HAIL...1.00IN
WIND...<50MPH
$$
RRS236
WWUS53 KARX 122059
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
359 PM CDT SAT APR 12 2014
WIC123-122130-
/O.CON.KARX.SV.W.0009.000000T0000Z-140412T2130Z/
VERNON WI-
359 PM CDT SAT APR 12 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR NORTHEASTERN VERNON COUNTY...
AT 358 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LA FARGE...OR
9 MILES NORTHEAST OF VIROQUA...MOVING EAST AT 40 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
THIS SEVERE STORM WILL BE NEAR...
HILLSBORO AROUND 415 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY
82 AND COUNTY A...JERSEY VALLEY COUNTY PARK...MOUNT TABOR...WILDCAT
MOUNTAIN STATE PARK...VALLEY...COUNTY ROADS D AND P...WHITE CITY...
TRIPPVILLE...BENDERS CORNERS AND BLOOMINGDALE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4355 9067 4352 9067 4352 9085 4368 9093
4373 9076 4373 9031 4356 9031
TIME...MOT...LOC 2058Z 256DEG 34KT 4362 9071
HAIL...1.00IN
WIND...<50MPH
$$
RRS455
WWUS53 KARX 122117
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
417 PM CDT SAT APR 12 2014
WIC123-122130-
/O.CON.KARX.SV.W.0009.000000T0000Z-140412T2130Z/
VERNON WI-
417 PM CDT SAT APR 12 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR NORTHEASTERN VERNON COUNTY...
AT 416 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HILLSBORO...OR
17 MILES NORTH OF RICHLAND CENTER...MOVING EAST AT 50 MPH.
HAZARD...QUARTER SIZE HAIL. THIS STORM HAS A HISTORY OF PRODUCING
DIME SIZED HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
THIS SEVERE STORM WILL BE NEAR...
HILLSBORO AROUND 425 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4352 9067 4352 9069 4357 9078 4368 9073
4373 9058 4373 9031 4356 9031 4355 9067
TIME...MOT...LOC 2116Z 261DEG 44KT 4359 9044
HAIL...1.00IN
WIND...<50MPH
$$
RRS330
WWUS53 KARX 122128
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
428 PM CDT SAT APR 12 2014
WIC123-122137-
/O.EXP.KARX.SV.W.0009.000000T0000Z-140412T2130Z/
VERNON WI-
428 PM CDT SAT APR 12 2014
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN VERNON COUNTY
WILL EXPIRE AT 430 PM CDT...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED A
BIT AND ONLY HAIL UP TO DIME SIZE HAS BEEN REPORTED. THEREFORE THE
WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER HAIL UP TO ONE-HALF
INCH AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY AFTERNOON FOR SOUTHWESTERN WISCONSIN AND NORTHEAST IOWA.
LAT...LON 4352 9067 4352 9069 4357 9078 4368 9073
4373 9058 4373 9031 4356 9031 4355 9067
TIME...MOT...LOC 2123Z 256DEG 49KT 4359 9044
$$
RRSThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 9:12 AM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Jackson, La Crosse, Monroe, Trempealeau | 48 min |
| Apr 12, 9:24 AM CDT | Severe Thunderstorm Warning | ARX | La Crosse | 51 min |
| Apr 12, 9:41 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, Juneau, La Crosse, Monroe | 49 min |
| Apr 12, 9:54 AM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Jackson, La Crosse, Trempealeau | 51 min |
| Apr 12, 10:28 AM CDT | Severe Thunderstorm Warning | ARX | Monroe | 32 min |
| Apr 12, 10:54 AM CDT | River Flood Warning | ARX | Buffalo | 6 days |
| Apr 12, 11:10 AM CDT | Areal Flood Advisory | ARX | La Crosse | 3 hr |
| Apr 12, 12:46 PM CDT | Severe Thunderstorm Warning | ARX | Adams | 44 min |
| Apr 12, 1:35 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 55 min |
| Apr 12, 4:05 PM CDT | Special Weather Statement | ARX | Adams, Crawford, Grant, Juneau, Richland, Vernon | 70 min |
| Apr 12, 4:10 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 50 min |
| Apr 12, 4:14 PM CDT | Severe Thunderstorm Warning | ARX | Crawford | 46 min |
| Apr 12, 4:37 PM CDT | Severe Thunderstorm Warning | ARX | Richland, Vernon | 23 min |
| Apr 12, 6:07 PM CDT | Special Weather Statement | ARX | Crawford, Grant, Richland | 83 min |
| Apr 12, 6:46 PM CDT | Special Weather Statement | ARX | Vernon | 44 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2014Every severe thunderstorm warning in 2014
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.