Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 11, NWS Twin Cities, MN

June 2, 20204 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 2, 2020, 5:42 PM CDT for 4 counties in Minnesota. It was in force for 48 min. 1 report 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, 5:42 PM CDT (22:42 UTC)
Expired: Jun 2, 2020, 6:30 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Blue Earth County, MN, Faribault County, MN, Martin County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 122 km from the middle of the area, began a volume at 22:41 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, 6:07 PM CDT	HAIL 1	Granada, MN	DELAYED REPORT - TREE BRANCHES ALSO DOWN ACROSS TOWN. TIME ESTIMATED FROM RADAR.

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, 10.7 hours before the alert went out and 121 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.

857 
WUUS53 KMPX 022242
SVRMPX
MNC013-043-091-165-022330-
/O.NEW.KMPX.SV.W.0011.200602T2242Z-200602T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
542 PM CDT Tue Jun 2 2020

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northern Faribault County in south central Minnesota...
  Northeastern Martin County in south central Minnesota...
  Southern Blue Earth County in south central Minnesota...
  Southeastern Watonwan County in south central Minnesota...

* Until 630 PM CDT.

* At 542 PM CDT, severe thunderstorms were located along a line
  extending from near Lake Crystal to near Trimont, moving east at 45
  mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Fairmont, Blue Earth, Mapleton, Winnebago, Truman, Minnesota Lake,
  Amboy, Vernon Center, Lewisville, Easton, Delavan and Granada.

This includes the following highways...
 Interstate 90 between mile markers 96 and 134.
 U.S. Highway 169 between mile markers 11 and 38.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4369 9472 4408 9430 4386 9377 4385 9376
      4385 9373 4384 9371 4363 9381
TIME...MOT...LOC 2242Z 272DEG 37KT 4406 9430 4376 9479 

HAIL...1.75IN
WIND...60MPH
 
$$

JRB

1 follow-up statement

238 
WWUS53 KMPX 022305
SVSMPX

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

MNC013-043-091-165-022330-
/O.CON.KMPX.SV.W.0011.000000T0000Z-200602T2330Z/
Faribault MN-Martin MN-Blue Earth MN-Watonwan MN-
605 PM CDT Tue Jun 2 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHERN FARIBAULT...NORTHEASTERN MARTIN...SOUTHERN BLUE EARTH
AND SOUTHEASTERN WATONWAN COUNTIES...

At 605 PM CDT, severe thunderstorms were located along a line
extending from near Good Thunder to 6 miles southwest of Winnebago,
moving east at 45 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Fairmont, Blue Earth, Mapleton, Winnebago, Truman, Minnesota Lake,
Amboy, Vernon Center, Lewisville, Easton, Delavan and Granada.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4369 9472 4408 9430 4386 9377 4385 9376
      4385 9373 4384 9371 4363 9381
TIME...MOT...LOC 2305Z 269DEG 39KT 4405 9402 4372 9429 

HAIL...1.25IN
WIND...60MPH
 
$$

JRB

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, 5:09 PM CDT	Tornado Warning Tornado observed	MPX	Blue Earth	36 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, 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

Severe Thunderstorm Warnings in Minnesota, 2020 Every severe thunderstorm warning 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.