Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 3, NWS Twin Cities, MN

June 2, 2020Blue Earth County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 2, 2020, 5:09 PM CDT for Blue Earth County, Minnesota. It was in force for 36 min. 4 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 2, 2020, 5:09 PM CDT (22:09 UTC)
Expired: Jun 2, 2020, 5:45 PM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Observed
Hail: 3.0 in

County Blue Earth County, MN

The radar

The Minneapolis radar (KMPX), 103 km from the middle of the area, began a volume at 22:11 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 2, 5:09 PM CDT	HAIL 2.5	3 Nne Garden City, MN	DELAYED REPORT FROM TRAINED SPOTTER. NOTED HAIL DAMAGE TO VEGETATION.
Jun 2, 5:27 PM CDT	TORNADO	5 N Mapleton, MN
Jun 2, 5:50 PM CDT	TSTM WND DMG	2 S Pemberton, MN	REPORT OF DOWNED TREE BRANCHES ACROSS THE ROAD. SOME LARGER THAN 12 INCH IN DIAMETER.
Jun 2, 5:50 PM CDT	HAIL 1	2 S Pemberton, MN

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 2, 4:39 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 102 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: 55 J/kg
Mixed-layer CIN: -557 J/kg
Mixed-layer LCL: 2144 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

202 
WFUS53 KMPX 022209
TORMPX
MNC013-022245-
/O.NEW.KMPX.TO.W.0003.200602T2209Z-200602T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
509 PM CDT Tue Jun 2 2020

The National Weather Service in The Twin Cities has issued a

* Tornado Warning for...
  Southern Blue Earth County in south central Minnesota...

* Until 545 PM CDT.

* At 509 PM CDT, a confirmed tornado was located over Good Thunder,
  or 9 miles southwest of Mankato, moving southeast at 30 mph.

  HAZARD...Damaging tornado and hail up to three inches in diameter.

  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...
  Mapleton around 530 PM CDT.
  Pemberton around 540 PM CDT.

Other locations impacted by this tornadic thunderstorm include Garden
City.

This includes U.S. Highway 169 between mile markers 35 and 46.
 
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 4400 9424 4413 9417 4405 9377 4385 9377
      4385 9379
TIME...MOT...LOC 2209Z 300DEG 25KT 4404 9408 

TORNADO...OBSERVED
HAIL...3.00IN

$$

Dye

1 follow-up statement

656 
WWUS53 KMPX 022230
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
530 PM CDT Tue Jun 2 2020

MNC013-022245-
/O.CON.KMPX.TO.W.0003.000000T0000Z-200602T2245Z/
Blue Earth MN-
530 PM CDT Tue Jun 2 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
SOUTHEASTERN BLUE EARTH COUNTY...
    
At 529 PM CDT, a confirmed tornado was located northeast of 
Mapleton, or 15 miles southeast of Mankato, moving southeast at 30 
mph.

HAZARD...Damaging tornado and three inch 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 tornadic thunderstorm will remain over mainly rural areas of
southeastern Blue Earth County.

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 4399 9409 4410 9400 4405 9377 4385 9377
      4385 9379
TIME...MOT...LOC 2229Z 297DEG 28KT 4396 9386 

TORNADO...OBSERVED
HAIL...3.00IN

$$

Dye

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 2, 12:07 PM CDT	Special Weather Statement	MPX	Douglas	23 min
Jun 2, 12:29 PM CDT	Special Weather Statement	MPX	Douglas	46 min
Jun 2, 1:09 PM CDT	Special Weather Statement	MPX	Morrison	36 min
Jun 2, 1:39 PM CDT	Special Weather Statement	MPX	Benton, Mille Lacs, Pope, Stearns, Swift	36 min
Jun 2, 2:12 PM CDT	Special Weather Statement	MPX	Benton, Pope, Stearns, Swift	33 min
Jun 2, 2:45 PM CDT	Special Weather Statement	MPX	Benton, Chippewa, Isanti, Kandiyohi, Lac qui Parle, Sherburne and 2 more	30 min
Jun 2, 3:14 PM CDT	Special Weather Statement	MPX	Chippewa, Chisago, Isanti, Kandiyohi, Sherburne, Stearns and 1 more	46 min
Jun 2, 3:41 PM CDT	Special Weather Statement	MPX	Anoka, Hennepin, Ramsey, Washington	64 min
Jun 2, 4:23 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet	37 min
Jun 2, 4:48 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Nicollet	27 min
Jun 2, 5:14 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Martin, Watonwan	31 min
Jun 2, 5:39 PM CDT	Tornado Warning Tornado observed	MPX	Blue Earth, Waseca	51 min
Jun 2, 5:42 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Martin, Watonwan	48 min
Jun 2, 6:18 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	42 min
Jun 2, 6:19 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	56 min
Jun 2, 6:32 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	58 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.