Alert archive / Wisconsin / Tornado Warnings in 2017

Tornado Warning 8, NWS La Crosse, WI

May 17, 2017Clark County, Jackson County, Wisconsin

NWS La Crosse, WI issued this tornado warning at May 17, 2017, 6:04 PM CDT for Clark County, Jackson County, Wisconsin. It was in force for 23 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
May 17, 2017, 6:04 PM CDT (23:04 UTC)
Expired
May 17, 2017, 6:27 PM CDT
In force
23 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Clark County, WI, Jackson County, WI

The radar

The La Crosse radar (KARX), 101 km from the middle of the area, began a volume at 23:03 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

TimeReportWhereRemark
May 17, 6:14 PM CDTTSTM WND DMG4 Ssw Sidney, WINUMEROUS TREES DOWN IN SOUTHWEST PART OF THE COUNTY.
May 17, 6:14 PM CDTTSTM WND DMG6 Sw Neillsville, WINUMEROUS TREES DOWN IN SOUTHWEST PART OF THE COUNTY

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.

IssuedProductOfficeLasted
May 17, 3:13 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.1 hours before the alert went out and 195 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2017-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2017-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1435 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

848 
WFUS53 KARX 172304
TORARX
WIC019-053-172345-
/O.NEW.KARX.TO.W.0008.170517T2304Z-170517T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
604 PM CDT WED MAY 17 2017

The National Weather Service in La Crosse has issued a

* Tornado Warning for...
  Southern Clark County in central Wisconsin...
  North central Jackson County in west central Wisconsin...

* Until 645 PM CDT
    
* At 603 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Humbird, or 10 miles north of Black River Falls, 
  moving northeast at 45 mph.  Spotters reported a funnel cloud near 
  Alma Center at 6 PM.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Neillsville around 620 PM CDT. 
  Loyal around 635 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Merrillan, Alma Center, Granton, Unity and Wildcat Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4464 9032 4439 9088 4449 9094 4487 9032
TIME...MOT...LOC 2303Z 227DEG 41KT 4445 9087 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

JSB
3 follow-up statements
594 
WWUS53 KARX 172309
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
609 PM CDT WED MAY 17 2017

WIC019-053-172345-
/O.CON.KARX.TO.W.0008.000000T0000Z-170517T2345Z/
Clark WI-Jackson WI-
609 PM CDT WED MAY 17 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN
CLARK AND NORTH CENTRAL JACKSON COUNTIES...
        
At 608 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Humbird, or 11 miles southwest of Neillsville,
moving northeast at 45 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Weather spotters reported a funnel cloud. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Neillsville around 620 PM CDT. 
  Loyal around 635 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Merrillan, Alma Center, Granton, Unity and Wildcat Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4464 9032 4439 9088 4449 9094 4487 9032
TIME...MOT...LOC 2308Z 227DEG 41KT 4450 9080 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JSB
099 
WWUS53 KARX 172319
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
619 PM CDT WED MAY 17 2017

WIC019-053-172345-
/O.CON.KARX.TO.W.0008.000000T0000Z-170517T2345Z/
Clark WI-Jackson WI-
619 PM CDT WED MAY 17 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN
CLARK AND NORTH CENTRAL JACKSON COUNTIES...
        
At 619 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Neillsville, moving northeast at 25 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Weather spotters reported a funnel cloud. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Neillsville around 630 PM CDT. 
  Loyal around 645 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Merrillan, Alma Center, Granton, Unity and Wildcat Mound.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4464 9032 4439 9088 4449 9094 4487 9032
TIME...MOT...LOC 2319Z 240DEG 23KT 4457 9072 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JSB
226 
WWUS53 KARX 172327
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
627 PM CDT WED MAY 17 2017

WIC019-053-172336-
/O.CAN.KARX.TO.W.0008.000000T0000Z-170517T2345Z/
Clark WI-Jackson WI-
627 PM CDT WED MAY 17 2017

...THE TORNADO WARNING FOR SOUTHERN CLARK AND NORTH CENTRAL JACKSON
COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

A tornado watch remains in effect until 1100 PM CDT for central and
west central Wisconsin.

Remember, a Severe Thunderstorm Warning still remains in effect for
Clark and Jackson counties.

LAT...LON 4464 9032 4439 9088 4449 9094 4487 9032
TIME...MOT...LOC 2324Z 227DEG 41KT 4463 9063 

$$

JSB

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 7:16 PM CDTSevere Thunderstorm WarningARXBuffalo44 min
May 16, 7:47 PM CDTSevere Thunderstorm WarningARXTrempealeau28 min
May 16, 8:38 PM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau52 min
May 16, 8:47 PM CDTSevere Thunderstorm WarningARXClark, Taylor28 min
May 16, 8:53 PM CDTSevere Thunderstorm WarningARXBuffalo52 min
May 16, 9:33 PM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau72 min
May 16, 9:44 PM CDTFlash Flood WarningARXBuffalo, Trempealeau4 hr
May 16, 9:57 PM CDTSevere Thunderstorm WarningARXClark, Jackson93 min
May 16, 11:07 PM CDTRiver Flood WarningARXBuffalo, Trempealeau9 days
May 17, 12:04 AM CDTFlash Flood WarningARXBuffalo, Jackson, Trempealeau116 min
May 17, 12:08 AM CDTSevere Thunderstorm WarningARXJackson, La Crosse, Trempealeau37 min
May 17, 1:51 AM CDTAreal Flood WarningARXBuffalo, Jackson, Trempealeau6 hr
May 17, 7:03 AM CDTAreal Flood WarningARXBuffalo, Jackson, Trempealeau39 hr
May 17, 9:22 AM CDTRiver Flood WarningARXJackson4 days
May 17, 9:22 AM CDTRiver Flood WarningARXLa Crosse, Trempealeau5 days
May 17, 9:28 AM CDTRiver Flood WarningARXBuffalo, Trempealeau66 hr
May 17, 12:09 PM CDTSpecial Weather StatementARXLa Crosse, Trempealeau51 min
May 17, 12:54 PM CDTSpecial Weather StatementARXClark, Jackson, Trempealeau51 min
May 17, 1:20 PM CDTSpecial Weather StatementARXClark25 min
May 17, 1:42 PM CDTSpecial Weather StatementARXClark63 min
May 17, 2:16 PM CDTSpecial Weather StatementARXTaylor29 min
May 17, 2:48 PM CDTSpecial Weather StatementARXAdams, Juneau27 min
May 17, 4:22 PM CDTSevere Thunderstorm WarningARXCrawford38 min
May 17, 4:29 PM CDTSevere Thunderstorm WarningARXBuffalo46 min
May 17, 4:41 PM CDTSevere Thunderstorm WarningARXLa Crosse, Trempealeau49 min
May 17, 4:53 PM CDTSevere Thunderstorm WarningARXVernon38 min
May 17, 5:06 PM CDTSevere Thunderstorm WarningARXCrawford, Grant, Richland, Vernon39 min
May 17, 5:09 PM CDTTornado WarningARXLa Crosse20 min
May 17, 5:17 PM CDTAreal Flood AdvisoryARXLa Crosse58 min
May 17, 5:24 PM CDTSevere Thunderstorm WarningARXLa Crosse, Monroe51 min
May 17, 5:26 PM CDTSevere Thunderstorm WarningARXJackson, La Crosse, Monroe, Trempealeau49 min
May 17, 5:31 PM CDTTornado WarningARXJackson24 min
May 17, 5:43 PM CDTSevere Thunderstorm WarningARXRichland, Vernon33 min
May 17, 5:46 PM CDTTornado WarningARXRichland, Vernon17 min
May 17, 5:52 PM CDTSevere Thunderstorm WarningARXClark, Jackson38 min
May 17, 5:55 PM CDTSevere Thunderstorm WarningARXJackson, Juneau, Monroe65 min
May 17, 6:07 PM CDTTornado WarningARXJackson, Juneau, Monroe16 min
May 17, 6:26 PM CDTSevere Thunderstorm WarningARXAdams34 min
May 17, 6:29 PM CDTSevere Thunderstorm WarningARXClark31 min
May 17, 6:39 PM CDTSevere Thunderstorm WarningARXClark, Taylor66 min
May 17, 6:56 PM CDTSevere Thunderstorm WarningARXAdams14 min

Nearby

Tornado Warnings in Wisconsin, 2017Every tornado warning in 2017Tornadoes 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.