Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 141, NWS La Crosse, WI

June 28, 2017Crawford County, Grant County, Wisconsin; Clayton County, Iowa

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 28, 2017, 5:11 PM CDT for Crawford County, Grant County, Wisconsin; Clayton County, Iowa. It was in force for 64 min. 5 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 28, 2017, 5:11 PM CDT (22:11 UTC)
Expired: Jun 28, 2017, 6:15 PM CDT
In force: 64 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Clayton County, IA, Crawford County, WI, Grant County, WI

The radar

The La Crosse radar (KARX), 92 km from the middle of the area, began a volume at 22:16 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 28, 5:23 PM CDT	TSTM WND DMG	4 Sse Giard, IA	POWER LINES DOWN. 20-24 INCH TREE DOWN.
Jun 28, 5:45 PM CDT	TSTM WND GST 58	1 N Lancaster, WI
Jun 28, 5:54 PM CDT	TSTM WND GST 63	3 Ne Lancaster, WI	ON COUNTY RD A.
Jun 28, 6:00 PM CDT	TSTM WND DMG	1 W Livingston, WI	ROOF BLOWN OFF BARN. VIA SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.
Jun 28, 6:03 PM CDT	TSTM WND GST 78	3 Nw Livingston, 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
Jun 28, 2:53 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.2 hours before the alert went out and 160 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: 134 J/kg
Mixed-layer CIN: -204 J/kg
Mixed-layer LCL: 1152 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted.

356 
WUUS53 KARX 282211
SVRARX
IAC043-WIC023-043-282315-
/O.NEW.KARX.SV.W.0141.170628T2211Z-170628T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
511 PM CDT WED JUN 28 2017

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  North central Clayton County in northeastern Iowa...
  Grant County in southwestern Wisconsin...
  Southern Crawford County in southwestern Wisconsin...

* Until 615 PM CDT

* At 510 PM CDT, a severe thunderstorm was located over McGregor, or
  near Prairie Du Chien, moving east at 40 mph.

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

  SOURCE...Emergency management reported 60 mph winds in 
           Farmersburg. 
           
  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near...
  Bloomington around 530 PM CDT. 
  Lancaster and Boscobel around 545 PM CDT. 
  Fennimore around 550 PM CDT. 

Other locations impacted by this severe thunderstorm include Preston,
Bridgeport, Arthur, Montfort and Wauzeka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until 1000 PM CDT for northeastern
Iowa...and southwestern Wisconsin.

LAT...LON 4284 9143 4307 9135 4308 9126 4308 9118
      4309 9118 4319 9043 4277 9043
TIME...MOT...LOC 2210Z 271DEG 36KT 4301 9119 

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

JAM

3 follow-up statements

671 
WWUS53 KARX 282225
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
525 PM CDT WED JUN 28 2017

IAC043-WIC023-043-282315-
/O.CON.KARX.SV.W.0141.000000T0000Z-170628T2315Z/
Clayton IA-Grant WI-Crawford WI-
525 PM CDT WED JUN 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTH CENTRAL CLAYTON...GRANT AND SOUTHERN CRAWFORD COUNTIES...

At 523 PM CDT, a severe thunderstorm was located 7 miles east of
Prairie Du Chien, moving east at 40 mph.

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

SOURCE...Emergency management reported numerous trees down near 
         Farmersburg at 453 PM. 

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

This severe storm will be near...
  Lancaster and Boscobel around 545 PM CDT. 
  Fennimore around 550 PM CDT. 

Other locations impacted by this severe thunderstorm include Preston,
Bridgeport, Arthur, Montfort and Wauzeka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 1000 PM CDT for northeastern
Iowa...and southwestern Wisconsin.

LAT...LON 4284 9136 4307 9132 4308 9126 4308 9118
      4309 9118 4319 9043 4277 9043
TIME...MOT...LOC 2223Z 271DEG 36KT 4301 9101 

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

JAM

038 
WWUS53 KARX 282251
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
551 PM CDT WED JUN 28 2017

IAC043-282259-
/O.CAN.KARX.SV.W.0141.000000T0000Z-170628T2315Z/
Clayton IA-
551 PM CDT WED JUN 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CLAYTON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 1000 PM CDT for northeastern
Iowa...and southwestern Wisconsin.

LAT...LON 4282 9108 4283 9108 4283 9110 4288 9110
      4290 9112 4291 9114 4294 9115 4296 9114
      4298 9116 4304 9118 4309 9118 4319 9043
      4277 9043
TIME...MOT...LOC 2249Z 275DEG 43KT 4295 9064 

$$

WIC023-043-282315-
/O.CON.KARX.SV.W.0141.000000T0000Z-170628T2315Z/
Grant WI-Crawford WI-
551 PM CDT WED JUN 28 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR GRANT AND SOUTHERN CRAWFORD COUNTIES...

At 549 PM CDT, a severe thunderstorm was located over Fennimore, or 
7 miles northeast of Lancaster, moving east at 50 mph. A tornado 
warning remains in effect 

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

SOURCE...Trained weather spotters reported wind gusts to 58 mph 1 
         mile north of Lancaster. 

IMPACT...Expect damage to roofs, siding, and trees. 

this severe thunderstorm will remain over mainly rural areas of Grant
and southern Crawford Counties, including the following locations:
Preston, Bridgeport, Arthur, Montfort and Wauzeka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 1000 PM CDT for northeastern
Iowa...and southwestern Wisconsin.

LAT...LON 4282 9108 4283 9108 4283 9110 4288 9110
      4290 9112 4291 9114 4294 9115 4296 9114
      4298 9116 4304 9118 4309 9118 4319 9043
      4277 9043
TIME...MOT...LOC 2249Z 275DEG 43KT 4295 9064 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

JAM

208 
WWUS53 KARX 282312
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
612 PM CDT WED JUN 28 2017

WIC023-043-282322-
/O.EXP.KARX.SV.W.0141.000000T0000Z-170628T2315Z/
Grant WI-Crawford WI-
612 PM CDT WED JUN 28 2017

...THE SEVERE THUNDERSTORM WARNING FOR GRANT AND SOUTHERN CRAWFORD
COUNTIES WILL EXPIRE AT 615 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A tornado watch remains in effect until 1000 PM CDT for southwestern 
Wisconsin.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
La Crosse.

LAT...LON 4282 9108 4283 9108 4283 9110 4288 9110
      4290 9112 4291 9114 4294 9115 4296 9114
      4298 9116 4304 9118 4309 9118 4319 9043
      4277 9043
TIME...MOT...LOC 2312Z 271DEG 36KT 4295 9034 

$$

JAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 4:34 PM CDT	Special Weather Statement	ARX	Crawford, Grant	56 min
Jun 28, 4:44 PM CDT	Special Weather Statement	ARX	Buffalo, Clark, Jackson, Taylor, Trempealeau	61 min
Jun 28, 5:09 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	51 min
Jun 28, 5:36 PM CDT	Severe Thunderstorm Warning	ARX	Grant	54 min
Jun 28, 5:40 PM CDT	Tornado Warning	ARX	Grant	35 min
Jun 28, 5:57 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	78 min
Jun 28, 6:28 PM CDT	Special Weather Statement	ARX	Grant	62 min
Jun 28, 6:31 PM CDT	Special Weather Statement	ARX	Grant	59 min
Jun 28, 3:02 PM CDT	Special Weather Statement	ARX	Chickasaw, Floyd, Winneshiek	43 min
Jun 28, 3:38 PM CDT	Special Weather Statement	ARX	Allamakee, Chickasaw, Clayton, Fayette, Floyd	52 min
Jun 28, 3:52 PM CDT	Severe Thunderstorm Warning	ARX	Chickasaw, Fayette, Winneshiek	38 min
Jun 28, 4:49 PM CDT	Tornado Warning	ARX	Clayton	26 min
Jun 28, 5:51 PM CDT	Flash Flood Warning	ARX	Clayton, Fayette	3 hr
Jun 28, 6:04 PM CDT	Special Weather Statement	ARX	Clayton	26 min
Jun 28, 6:19 PM CDT	Severe Thunderstorm Warning	ARX	Clayton	26 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2017 Severe Thunderstorm Warnings in Iowa, 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.