Alert archive / Minnesota / Tornado Warnings in 2019

Tornado Warning 18, NWS Twin Cities, MN

July 5, 2019Le Sueur County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 5, 2019, 6:01 PM CDT for Le Sueur County, Minnesota. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 5, 2019, 6:01 PM CDT (23:01 UTC)
Expired
Jul 5, 2019, 6:30 PM CDT
In force
29 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Le Sueur County, MN

The radar

The Minneapolis radar (KMPX), 43 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 42 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, Minneapolis, MN at 12:00Z on 2019-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 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, Minneapolis, MN at 12:00Z on 2019-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -54 square meters per square second.193958Sfc1 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
13 J/kg
Mixed-layer CIN
-275 J/kg
Mixed-layer LCL
1065 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-54 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

134 
WFUS53 KMPX 052301
TORMPX
MNC079-052330-
/O.NEW.KMPX.TO.W.0018.190705T2301Z-190705T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
601 PM CDT Fri Jul 5 2019

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  North central Le Sueur County in south central Minnesota...

* Until 630 PM CDT.
    
* At 601 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Henderson, or 26 miles north of Mankato, moving
  southeast at 20 mph.

  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 tornadic thunderstorm will remain over mainly rural areas of
  north central Le Sueur County.

This includes U.S. Highway 169 between mile markers 81 and 84.
 
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 4451 9389 4453 9389 4455 9387 4455 9378
      4451 9367 4442 9376
TIME...MOT...LOC 2301Z 305DEG 16KT 4454 9387 

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

$$

JLT
2 follow-up statements
618 
WWUS53 KMPX 052321
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
621 PM CDT Fri Jul 5 2019

MNC079-052330-
/O.CON.KMPX.TO.W.0018.000000T0000Z-190705T2330Z/
Le Sueur MN-
621 PM CDT Fri Jul 5 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR NORTH
CENTRAL LE SUEUR COUNTY...
    
At 621 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Le Sueur, or 24 miles northeast of Mankato, moving
southeast at 15 mph.

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 tornadic thunderstorm will remain over mainly rural areas of
north central Le Sueur County.

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 4451 9389 4453 9389 4455 9387 4455 9378
      4451 9367 4442 9376
TIME...MOT...LOC 2321Z 307DEG 15KT 4449 9378 

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

$$

JLT
868 
WWUS53 KMPX 052328
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
628 PM CDT Fri Jul 5 2019

MNC079-052338-
/O.EXP.KMPX.TO.W.0018.000000T0000Z-190705T2330Z/
Le Sueur MN-
628 PM CDT Fri Jul 5 2019

...THE TORNADO WARNING FOR NORTH CENTRAL LE SUEUR COUNTY WILL EXPIRE
AT 630 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with this thunderstorm.

LAT...LON 4451 9389 4453 9389 4455 9387 4455 9378
      4451 9367 4442 9376
TIME...MOT...LOC 2328Z 305DEG 16KT 4448 9376 

$$

JLT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 1:09 PM CDTSpecial Weather StatementMPXYellow Medicine66 min
Jul 5, 4:23 PM CDTTornado WarningMPXRedwood, Renville26 min
Jul 5, 4:37 PM CDTSevere Thunderstorm WarningMPXMcLeod, Sibley38 min
Jul 5, 5:13 PM CDTSevere Thunderstorm WarningMPXSibley47 min
Jul 5, 5:39 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Scott, Sibley51 min
Jul 5, 5:45 PM CDTTornado WarningMPXScott, Sibley30 min
Jul 5, 6:30 PM CDTSpecial Weather StatementMPXLe Sueur45 min

Nearby

Tornado Warnings in Minnesota, 2019Every tornado warning in 2019Tornadoes in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.