Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 38, NWS La Crosse, WI

April 9, 2017Jackson County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Apr 9, 2017, 11:37 PM CDT for Jackson County, Trempealeau County, Wisconsin. It was in force for 53 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: Apr 9, 2017, 11:37 PM CDT (04:37 UTC)
Expired: Apr 10, 2017, 12:30 AM CDT
In force: 53 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jackson County, WI, Trempealeau County, WI

The radar

The La Crosse radar (KARX), 36 km from the middle of the area, began a volume at 04:39 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 9, 11:53 PM CDT	HAIL 0.5	Taylor, WI	REPORT RELAYED THROUGH COUNTY EMERGENCY MANAGER. HAIL RANGED FROM PEA TO QUARTER SIZE. ALSO ESTIMATED WIND GUSTS TO 50 MPH. TIME ESTIMATED FROM RADAR.
Apr 9, 11:53 PM CDT	HAIL 1	Taylor, WI	REPORT RELAYED THROUGH COUNTY EMERGENCY MANAGER. HAIL RANGED FROM PEA TO QUARTER SIZE. ALSO ESTIMATED WIND GUSTS TO 50 MPH. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 16 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 9, 9:01 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.6 hours before the alert went out and 209 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1596 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 450 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

035 
WUUS53 KARX 100437
SVRARX
WIC053-121-100530-
/O.NEW.KARX.SV.W.0038.170410T0437Z-170410T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
1137 PM CDT SUN APR 9 2017

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Jackson County in west central Wisconsin...
  Southern Trempealeau County in west central Wisconsin...

* Until 1230 AM CDT

* At 1137 PM CDT, a severe thunderstorm was located over Blair, or
  near Whitehall, moving east at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near...
  Black River Falls around 1205 AM CDT. 
  Hatfield and Millston around 1210 AM CDT. 

Other locations impacted by this severe thunderstorm include Dodge,
Franklin, Irving, Ettrick and Melrose.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4416 9091 4413 9098 4408 9097 4407 9115
      4409 9117 4409 9119 4405 9122 4407 9127
      4406 9128 4407 9131 4404 9133 4402 9151
      4404 9157 4410 9154 4416 9158 4425 9153
      4433 9152 4442 9079 4442 9033 4416 9031
TIME...MOT...LOC 0437Z 260DEG 47KT 4428 9127 

HAIL...1.00IN
WIND...60MPH
 
$$

JSB

4 follow-up statements

090 
WWUS53 KARX 100447
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1147 PM CDT SUN APR 9 2017

WIC053-121-100530-
/O.CON.KARX.SV.W.0038.000000T0000Z-170410T0530Z/
Jackson WI-Trempealeau WI-
1147 PM CDT SUN APR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR JACKSON AND SOUTHERN TREMPEALEAU COUNTIES...

At 1147 PM CDT, a severe thunderstorm was located near Blair, or 10
miles southeast of Whitehall, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

This severe storm will be near...
  Black River Falls around 1205 AM CDT. 
  Hatfield and Millston around 1215 AM CDT. 

Other locations impacted by this severe thunderstorm include Dodge,
Franklin, Irving, Ettrick and Melrose.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4416 9091 4413 9098 4408 9097 4407 9115
      4409 9117 4409 9119 4405 9122 4407 9127
      4406 9128 4407 9131 4404 9133 4402 9151
      4404 9157 4410 9154 4416 9158 4425 9153
      4433 9152 4442 9079 4442 9033 4416 9031
TIME...MOT...LOC 0447Z 260DEG 44KT 4429 9114 

HAIL...1.00IN
WIND...60MPH
 
$$

JSB

344 
WWUS53 KARX 100454
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1154 PM CDT SUN APR 9 2017

WIC053-121-100530-
/O.CON.KARX.SV.W.0038.000000T0000Z-170410T0530Z/
Jackson WI-Trempealeau WI-
1154 PM CDT SUN APR 9 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR JACKSON AND SOUTHERN TREMPEALEAU COUNTIES...

At 1153 PM CDT, a severe thunderstorm was located 8 miles east of
Blair, or 10 miles west of Black River Falls, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

This severe storm will be near...
  Black River Falls around 1210 AM CDT. 
  Hatfield around 1215 AM CDT. 
  Millston around 1220 AM CDT. 

Other locations impacted by this severe thunderstorm include Dodge,
Franklin, Irving, Ettrick and Melrose.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4416 9091 4413 9098 4408 9097 4407 9115
      4409 9117 4409 9119 4405 9122 4407 9127
      4406 9128 4407 9131 4404 9133 4402 9151
      4404 9157 4410 9154 4416 9158 4425 9153
      4433 9152 4442 9079 4442 9033 4416 9031
TIME...MOT...LOC 0453Z 260DEG 43KT 4428 9107 

HAIL...1.00IN
WIND...60MPH
 
$$

JSB

224 
WWUS53 KARX 100507
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1207 AM CDT MON APR 10 2017

WIC053-121-100530-
/O.CON.KARX.SV.W.0038.000000T0000Z-170410T0530Z/
Jackson WI-Trempealeau WI-
1207 AM CDT MON APR 10 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR JACKSON AND SOUTHERN TREMPEALEAU COUNTIES...

At 1207 AM CDT, a severe thunderstorm was located near Blair, or 
10 miles southeast of Whitehall, moving northeast at 45 mph.

HAZARD...Quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Damage to vehicles is expected. 

This severe storm will be near...
  Black River Falls and Hatfield around 1230 AM CDT. 

Other locations impacted by this severe thunderstorm include Dodge,
Franklin, Irving, Ettrick and Melrose.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4416 9091 4413 9098 4408 9097 4407 9115
      4409 9117 4409 9119 4405 9122 4407 9127
      4406 9128 4407 9131 4404 9133 4402 9151
      4404 9157 4410 9154 4416 9158 4425 9153
      4433 9152 4442 9079 4442 9033 4416 9031
TIME...MOT...LOC 0507Z 237DEG 38KT 4425 9119 

HAIL...1.00IN
WIND...<50MPH
 
$$

JSB

043 
WWUS53 KARX 100524
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
1224 AM CDT MON APR 10 2017

WIC053-121-100534-
/O.EXP.KARX.SV.W.0038.000000T0000Z-170410T0530Z/
Jackson WI-Trempealeau WI-
1224 AM CDT MON APR 10 2017

...THE SEVERE THUNDERSTORM WARNING FOR JACKSON AND SOUTHERN
TREMPEALEAU COUNTIES WILL EXPIRE AT 1230 AM CDT...
    
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire.  However small 
hail is still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 100 AM CDT for
west central Wisconsin.

LAT...LON 4416 9091 4413 9098 4408 9097 4407 9115
      4409 9117 4409 9119 4405 9122 4407 9127
      4406 9128 4407 9131 4404 9133 4402 9151
      4404 9157 4410 9154 4416 9158 4425 9153
      4433 9152 4442 9079 4442 9033 4416 9031
TIME...MOT...LOC 0524Z 260DEG 47KT 4428 9092 

$$

JSB

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 9, 6:17 PM CDT, 5 hours 20 minutes earlier.

Area forecast discussion, Apr 9, 6:17 PM CDT, 5 hours 20 minutes before

Area Forecast Discussion
National Weather Service La Crosse WI
617 PM CDT Sun Apr 9 2017

.UPDATE...This Evening
Issued at 608 PM CDT Sun Apr 9 2017

Thunderstorms have now pushed into northern Wisconsin and are
producing hail, up to around quarter size, over Price County, and
potentially larger has reflectivity continues to increase on radar.

We will see a break in the action locally until late this evening,
most likley closer to 9 PM when scattered thunderstorms are
expected to develop along the cold front and shortwave working in
from the west. A few of these storms may produce large hail and
gusty winds. Overall, the severe thunderstorm threat appears to be
diminishing. Latest mesoscale models runs are starting to back
off on the area coverage of storms later this evening into the
overnight especially the HRRR. The latest SPC Mesoanalysis
indicates 1500 to 2000 J/kg MUCAPE across much of the area. A
strong CAP remains in place so not anticipating any surface based
storms. So, the main threat from any storms, if they develop later
this evening, would be large hail.

&&

.SHORT TERM...(This evening through Monday)
Issued at 206 PM CDT Sun Apr 9 2017

All eyes on thunderstorm chances and severe potential late this
afternoon/evening and into the early overnight hours. 18Z water
vapor loop shows a potent low spinning across the northern Rockies
with its attendant surface low centered near Omaha. A warm front
extends northeastward across northwest IA, southeast MN, and into
north-central WI. Surface low is forecast to lift northeastward
along this boundary, nearing the MN/WI border in the vicinity of
Wabasha by 06-09Z tonight. 0-3 km MUCAPE soars to between 1500 and
25000 J/kg late this afternoon and evening south of the warm
front. 0-3 km bulk shear is also quite strong, ranging from 40 to
50 kts with area soundings showing strong turning in the lowest
couple kilometers late this afternoon. That said, there is a
strong elevated warm layer from 2-3 km, essentially capping the
atmosphere with CIN values well in excess of 100 J/kg for most of
the forecast area. Deep layer lift is also lacking with the best
500-300 hPa potential vorticity advection delayed until later this
evening.

If cap can break early so that boundary layer rich instability/shear
is available for storm development, will need to watch for supercell
development near and north of the warm front this afternoon and
early evening. Based on latest convection allowing models (CAMs),
this outcome is looking less likely as HRRR/RAP now show some more
generic thunderstorms developing this afternoon mainly north of I-
94, but quickly lifting activity north of forecast area by 23-00Z.
More likely scenario is for a convective complex to develop
somewhere across southwest/south-central MN late this afternoon
and early evening in the less capped environment north of the warm
front and then race northeastward coincident with strong short-
wave/upper level forcing moving through the region. CAMs bring
this complex into the forecast area between 01-07Z mainly along
and north of I- 90. By this time, hodographs straighten out,
suggesting more of a linear storm mode with the primary threats
being large hail and damaging wind. Convective development/severe
potential farther south in the vicinity of the cold front less
certain given lingering capping issues. Most if not all convection
should move east of the forecast area by 09Z tonight.

For Monday, scattered rain showers are possible mainly north of I-90
in the deformation axis on the backside of the departing surface
low. Skies will be cloudy with winds shifting to the northwest,
gusting at times to 25 mph. Temperatures will be cooler with a large
gradient across the forecast area. Highs will range from the upper
40s across the northwest to the lower 60s across the southeast.

.LONG TERM...(Monday night through Sunday)
Issued at 206 PM CDT Sun Apr 9 2017

If any lingering showers can hold together into Monday night,
there could be a brief period of a wintry mix across the northwest
half of the forecast area due to a loss of ice aloft and cooling
surface temperatures to near freezing. Confidence of occurrence
is low.

Tuesday will see decreasing cloud cover through the day as high
pressure builds across the region. Cooler temperatures will continue
with highs mainly in the lower 50s. Most of Wednesday also looking
dry, but clouds will increase again ahead of the next short-wave
Wednesday night. Temperatures will warm back into the upper 50s to
lower 60s.

Good model agreement of a shortwave and associated rain showers
sliding through the area Wednesday evening into Thursday morning.
The 09.12Z GFS and 09.12Z ECMWF then keep Thursday dry, before
diverging with their solutions on Friday. While both models bring
a cold front and rain through the area on Saturday, the ECMWF
brings a shortwave through the area ahead of the front, meaning
the rain would begin Friday evening. The GFS keeps this feature
well south of the area. The cold front and rain then shift out of
the area by late Saturday night/early Sunday morning, dropping
high temperatures from the 60s on previous days, to near to
slightly below normal values in the 50s.

&&

.AVIATION...(For the 00Z TAFS through 00Z Monday evening)
Issued at 617 PM CDT Sun Apr 9 2017

Plan on conditions lowering to MVFR tonight in stratus and perhaps
a few thunderstorms. KRST looks to have the best chance of seeing
at thunderstorm or two later this evening so have included VCTS in
the TAF starting at 04Z through 06Z. Confidence was too low to
include a thunderstorms mention at KLSE but will have to watch
trends closely this evening. Plan on MVFR stratus persisting at
the TAF site through much of the day Monday.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.
&&

UPDATE...Wetenkamp
SHORT TERM...Rogers
LONG TERM...Rogers/CA
AVIATION.....RRS

Hazardous weather outlook, Apr 9, 2:40 PM CDT, 8 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service La Crosse WI
240 PM CDT Sun Apr 9 2017

IAZ011-030-WIZ043-044-053>055-061-101945-
Allamakee-Clayton-Juneau-Adams-Vernon-Crawford-Richland-Grant-
240 PM CDT Sun Apr 9 2017

This Hazardous Weather Outlook is for portions of northeast
Iowa...central Wisconsin and southwest Wisconsin.

.DAY ONE...This Afternoon and Tonight

A few thunderstorms may develop this evening and tonight. While
the overall severe threat is low, a few storms may produce hail
and gusty wind.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

IAZ008-009-018-019-MNZ079-086>088-094-095-WIZ017-029-032>034-
101945-
Mitchell-Howard-Floyd-Chickasaw-Wabasha-Dodge-Olmsted-Winona-
Mower-Fillmore-Taylor-Clark-Buffalo-Trempealeau-Jackson-
240 PM CDT Sun Apr 9 2017

This Hazardous Weather Outlook is for portions of north central
Iowa...northeast Iowa...southeast Minnesota...central Wisconsin...
north central Wisconsin and west central Wisconsin.

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms will continue this afternoon mainly north
of Interstate 94 and then become more widespread later this
evening and overnight. Some storms may become severe with large
hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon and evening.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

IAZ010-029-MNZ096-WIZ041-042-101945-
Winneshiek-Fayette-Houston-La Crosse-Monroe-
240 PM CDT Sun Apr 9 2017

This Hazardous Weather Outlook is for portions of northeast
Iowa...southeast Minnesota and west central Wisconsin.

.DAY ONE...This Afternoon and Tonight

A few thunderstorms are possible this evening and tonight. Some
of these storms could become severe with a risk for large hail and
damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed for a few hours this evening.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

Rogers

In the hours before

Local storm report, Apr 9, 10:48 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1048 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1030 PM     HAIL             5 W HAYFIELD            43.89N 92.95W
04/09/2017  M1.00 INCH       DODGE              MN   PUBLIC

            FACEBOOK PHOTO REPORT.

&&

LAWRENCE

Local storm report, Apr 9, 10:51 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1051 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1042 PM     HAIL             5 W GILMAN              45.16N 90.90W
04/09/2017  E0.88 INCH       TAYLOR             WI   PUBLIC

            PUBLIC REPORTED NICKEL SIZE HAIL FIVE MILES
            WEST OF GILMAN.

&&

Local storm report, Apr 9, 11:01 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1101 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0840 PM     HAIL             2 E KASSON              44.03N 92.70W
04/09/2017  M1.00 INCH       DODGE              MN   PUBLIC

            PUBLIC MEASURED QUARTER SIZE HAIL NEAR THE
            CITY OF KASSON.

&&

Local storm report, Apr 9, 11:14 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1114 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 PM     HAIL             2 NE STACYVILLE         43.46N 92.75W
04/09/2017  E2.50 INCH       MITCHELL           IA   BROADCAST MEDIA

            TIME ESTIMATED FROM RADAR. BIGGEST HAIL
            REPORTED BETWEEN STACYVILLE, IA AND ADAMS,
            MN.

&&

LAWRENCE

Local storm report, Apr 9, 11:20 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1120 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1117 PM     HAIL             1 W STOCKTON            44.02N 91.79W
04/09/2017  E0.88 INCH       WINONA             MN   PUBLIC

&&

Local storm report, Apr 9, 11:27 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1127 PM CDT SUN APR 9 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1050 PM     HAIL             DODGE CENTER            44.03N 92.85W
04/09/2017  M2.00 INCH       DODGE              MN   PUBLIC

            TWITTER PHOTO REPORT.

&&

LAWRENCE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 10:11 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	49 min
Apr 9, 10:33 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	57 min
Apr 9, 10:38 PM CDT	Special Weather Statement	ARX	Taylor	37 min
Apr 9, 10:41 PM CDT	Severe Thunderstorm Warning	ARX	Taylor	64 min
Apr 9, 11:04 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	41 min
Apr 9, 11:12 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	63 min
Apr 9, 11:44 PM CDT	Severe Thunderstorm Warning	ARX	Clark	60 min
Apr 9, 11:58 PM CDT	Severe Thunderstorm Warning	ARX	Clark, Jackson	47 min
Apr 10, 5:56 AM CDT	Special Weather Statement	ARX	Jackson, La Crosse, Trempealeau	64 min
Apr 10, 6:57 AM CDT	Special Weather Statement	ARX	Clark	33 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2017 Every severe thunderstorm warning in 2017

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.