Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 6, NWS La Crosse, WI

June 28, 2020Winona County, Minnesota

NWS La Crosse, WI issued this tornado warning at Jun 28, 2020, 8:41 PM CDT for Winona County, Minnesota. It was in force for 34 min. 3 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, 2020, 8:41 PM CDT (01:41 UTC)
Expired: Jun 28, 2020, 9:15 PM CDT
In force: 34 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

County Winona County, MN

The radar

The La Crosse radar (KARX), 48 km from the middle of the area, began a volume at 01:44 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, 8:45 PM CDT	TORNADO	3 Se Stockton, MN	PRELIMINARY REPORT.
Jun 28, 8:53 PM CDT	FUNNEL CLOUD	2 Ese Stockton, MN	WALL CLOUD WITH A FUNNEL.
Jun 28, 8:54 PM CDT	TORNADO	2 Ene Stockton, MN	2ND TORNADO FROM JUNE 28TH DOCUMENTED. LASTED APPROX 2 MINUTES AND WAS LOW END EF0.

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, 5:14 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.7 hours before the alert went out and 175 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: 40 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 944 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

070 
WFUS53 KARX 290141
TORARX
MNC169-290215-
/O.NEW.KARX.TO.W.0006.200629T0141Z-200629T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
841 PM CDT Sun Jun 28 2020

The National Weather Service in La Crosse has issued a

* Tornado Warning for...
  Central Winona County in southeastern Minnesota...

* Until 915 PM CDT.

* At 840 PM CDT, a confirmed tornado was located near Stockton, or 
  near Winona, moving east at 10 mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Weather spotters confirmed tornado.

  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.

* The tornado will be near...
  Goodview around 845 PM CDT.
  Winona around 850 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Pickwick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4396 9181 4402 9184 4408 9167 4398 9159
TIME...MOT...LOC 0140Z 259DEG 10KT 4400 9174 

TORNADO...OBSERVED
HAIL...1.00IN

$$

JAM

2 follow-up statements

158 
WWUS53 KARX 290145
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
845 PM CDT Sun Jun 28 2020

MNC169-290215-
/O.CON.KARX.TO.W.0006.000000T0000Z-200629T0215Z/
Winona MN-
845 PM CDT Sun Jun 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR CENTRAL
WINONA COUNTY...
    
At 844 PM CDT, a confirmed tornado was located near Stockton, moving 
east at 15 mph.

HAZARD...Damaging tornado and quarter size hail.

SOURCE...Weather spotters confirmed tornado.

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 tornado will be near...
  Winona around 850 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Pickwick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4398 9176 4402 9177 4408 9167 4398 9159
TIME...MOT...LOC 0144Z 265DEG 11KT 4399 9171 

TORNADO...OBSERVED
HAIL...1.00IN

$$

JAM

846 
WWUS53 KARX 290208
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
908 PM CDT Sun Jun 28 2020

MNC169-290217-
/O.EXP.KARX.TO.W.0006.000000T0000Z-200629T0215Z/
Winona MN-
908 PM CDT Sun Jun 28 2020

...THE TORNADO WARNING FOR CENTRAL WINONA COUNTY WILL EXPIRE AT 915
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 southeastern
Minnesota.

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

LAT...LON 4398 9176 4402 9177 4408 9167 4398 9159
TIME...MOT...LOC 0207Z 259DEG 10KT 4400 9163 

$$

JAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 7:26 PM CDT	Severe Thunderstorm Warning	ARX	Winona	79 min
Jun 28, 7:30 PM CDT	Special Weather Statement	ARX	Wabasha	75 min
Jun 29, 1:57 PM CDT	Special Weather Statement	ARX	Wabasha	63 min

Nearby

Tornado Warnings in Minnesota, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.