Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 27, NWS Twin Cities, MN

June 21, 2020Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 21, 2020, 5:12 PM CDT for Faribault County, Minnesota. It was in force for 33 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 21, 2020, 5:12 PM CDT (22:12 UTC)
Expired: Jun 21, 2020, 5:45 PM CDT
In force: 33 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Faribault County, MN

The radar

The Minneapolis radar (KMPX), 131 km from the middle of the area, began a volume at 22:14 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 21, 5:14 PM CDT	HAIL 1.25	2 N Blue Earth, 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 21, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 131 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: 44 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 1247 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

245 
WUUS53 KMPX 212212
SVRMPX
MNC043-212245-
/O.NEW.KMPX.SV.W.0027.200621T2212Z-200621T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
512 PM CDT Sun Jun 21 2020

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Central Faribault County in south central Minnesota...

* Until 545 PM CDT.

* At 512 PM CDT, a severe thunderstorm was located over Blue Earth,
  or 19 miles east of Fairmont, moving east at 50 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Blue Earth, Wells, Minnesota Lake, Easton, Frost, Delavan, Brush
  Creek, Walters and Baroda.

This includes the following highways...
 Interstate 90 between mile markers 118 and 142.
 U.S. Highway 169 between mile markers 6 and 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

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

&&

LAT...LON 4357 9414 4374 9416 4385 9378 4384 9365
      4360 9365
TIME...MOT...LOC 2212Z 250DEG 43KT 4363 9408 

HAIL...1.25IN
WIND...<50MPH
 
$$

ETA

1 follow-up statement

088 
WWUS53 KMPX 212233
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
533 PM CDT Sun Jun 21 2020

MNC043-212245-
/O.CON.KMPX.SV.W.0027.000000T0000Z-200621T2245Z/
Faribault MN-
533 PM CDT Sun Jun 21 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHEASTERN FARIBAULT COUNTY...

At 532 PM CDT, a severe thunderstorm was located over Wells, or 19
miles west of Albert Lea, moving east at 50 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Wells, Minnesota Lake, Easton, Brush Creek, Walters and Baroda. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 4364 9393 4378 9401 4385 9378 4384 9365
      4360 9365 4358 9391
TIME...MOT...LOC 2232Z 250DEG 43KT 4372 9376 

HAIL...1.25IN
WIND...<50MPH
 
$$

ETA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 10:45 PM CDT	Special Weather Statement	MPX	Lac qui Parle	30 min
Jun 21, 2:26 PM CDT	Special Weather Statement	MPX	Brown	34 min
Jun 21, 2:42 PM CDT	Special Weather Statement	MPX	Scott	33 min
Jun 21, 2:54 PM CDT	Special Weather Statement	MPX	Nicollet	36 min
Jun 21, 3:02 PM CDT	Special Weather Statement	MPX	Brown	73 min
Jun 21, 3:16 PM CDT	Special Weather Statement	MPX	Sibley	44 min
Jun 21, 3:41 PM CDT	Special Weather Statement	MPX	Scott	49 min
Jun 21, 3:59 PM CDT	Severe Thunderstorm Warning	MPX	Martin, Watonwan	46 min
Jun 21, 4:14 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	20 min
Jun 21, 4:28 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Watonwan	32 min
Jun 21, 5:15 PM CDT	Special Weather Statement	MPX	Martin	45 min
Jun 21, 5:20 PM CDT	Special Weather Statement	MPX	Waseca	40 min
Jun 21, 5:52 PM CDT	Special Weather Statement	MPX	Faribault	38 min
Jun 21, 5:57 PM CDT	Special Weather Statement	MPX	Blue Earth, Watonwan	33 min
Jun 21, 6:07 PM CDT	Special Weather Statement	MPX	Freeborn	38 min
Jun 21, 6:44 PM CDT	Special Weather Statement	MPX	Freeborn	31 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.