Alert archive / Minnesota / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 8, NWS Twin Cities, MN

April 12, 2022Blue Earth County, Le Sueur County, Nicollet County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 12, 2022, 7:42 PM CDT for Blue Earth County, Le Sueur County, Nicollet County, Minnesota. It was in force for 48 min. 6 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: Apr 12, 2022, 7:42 PM CDT (00:42 UTC)
Expired: Apr 12, 2022, 8:30 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Blue Earth County, MN, Le Sueur County, MN, Nicollet County, MN

The radar

The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 00:43 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
Apr 12, 7:52 PM CDT	HAIL 0.75	2 E Skyline, MN
Apr 12, 7:55 PM CDT	HAIL 1.25	Mankato, MN	PICTURE VIA TWITTER.
Apr 12, 8:00 PM CDT	HAIL 1	Skyline, MN	PICTURE VIA TWITTER.
Apr 12, 8:05 PM CDT	HAIL 1	1 Ese North Mankato, MN
Apr 12, 8:05 PM CDT	HAIL 1.75	2 Ne Mankato, MN
Apr 12, 8:07 PM CDT	HAIL 1.25	1 Nne Skyline, MN	REPORT FROM MPING: HALF DOLLAR (1.25 IN.).

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
Apr 12, 5:11 PM CDT	Tornado Watch	SPC	7 hr
Apr 12, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.7 hours before the alert went out and 83 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 710 m²/s²
0-3 km storm-relative helicity: 827 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

014 
WUUS53 KMPX 130042
SVRMPX
MNC013-079-103-130130-
/O.NEW.KMPX.SV.W.0008.220413T0042Z-220413T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
742 PM CDT Tue Apr 12 2022

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southern Le Sueur County in south central Minnesota...
  Northern Blue Earth County in south central Minnesota...
  Southeastern Nicollet County in south central Minnesota...

* Until 830 PM CDT.

* At 742 PM CDT, a severe thunderstorm was located near Lake Crystal,
  or 8 miles southwest of Mankato, moving northeast at 40 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Trained weather spotters.

  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.

* This severe thunderstorm will be near...
  Mankato around 750 PM CDT.
  Eagle Lake around 800 PM CDT.

Other locations in the path of this severe thunderstorm include
Madison Lake, Kasota, St. Peter and Cleveland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Minnesota.

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

&&

LAT...LON 4400 9397 4403 9430 4440 9405 4434 9361
TIME...MOT...LOC 0042Z 216DEG 35KT 4408 9412 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Borghoff

3 follow-up statements

606 
WWUS53 KMPX 130055 RRA
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
755 PM CDT Tue Apr 12 2022

MNC013-079-103-130130-
/O.CON.KMPX.SV.W.0008.000000T0000Z-220413T0130Z/
Le Sueur MN-Blue Earth MN-Nicollet MN-
755 PM CDT Tue Apr 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHERN LE SUEUR...NORTHEASTERN BLUE EARTH AND SOUTHEASTERN
NICOLLET COUNTIES...

At 755 PM CDT, severe thunderstorms were located along a line
extending from 5 miles east of Lake Crystal to Eagle Lake, moving
northeast at 40 mph.

HAZARD...Ping pong 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.

These severe storms will be near...
  Eagle Lake and Madison Lake around 800 PM CDT.

Other locations in the path of these severe thunderstorms include St.
Peter, Kasota and Cleveland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Minnesota.

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

&&

LAT...LON 4411 9386 4408 9418 4440 9405 4434 9361
TIME...MOT...LOC 0055Z 227DEG 34KT 4412 9411 4417 9385 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Borghoff

949 
WWUS53 KMPX 130104
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
804 PM CDT Tue Apr 12 2022

MNC013-079-103-130130-
/O.CON.KMPX.SV.W.0008.000000T0000Z-220413T0130Z/
Le Sueur MN-Blue Earth MN-Nicollet MN-
804 PM CDT Tue Apr 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHERN LE SUEUR...NORTHEASTERN BLUE EARTH AND SOUTHEASTERN
NICOLLET COUNTIES...

At 804 PM CDT, severe thunderstorms were located along a line
extending from near Mankato to near Madison Lake, moving northeast at
30 mph.

HAZARD...Two inch 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.

These severe storms will be near...
  Madison Lake around 810 PM CDT.

Other locations in the path of these severe thunderstorms include St.
Peter, Kasota and Cleveland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Minnesota.

These are dangerous storms. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4432 9363 4419 9381 4415 9411 4439 9395
      4434 9361
TIME...MOT...LOC 0104Z 218DEG 28KT 4418 9403 4422 9385 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Borghoff

671 
WWUS53 KMPX 130117
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
817 PM CDT Tue Apr 12 2022

MNC013-103-130126-
/O.CAN.KMPX.SV.W.0008.000000T0000Z-220413T0130Z/
Blue Earth MN-Nicollet MN-
817 PM CDT Tue Apr 12 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BLUE EARTH AND
SOUTHEASTERN NICOLLET COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
south central Minnesota.

LAT...LON 4435 9365 4434 9362 4433 9362 4426 9372
      4424 9378 4424 9400 4438 9385
TIME...MOT...LOC 0116Z 225DEG 39KT 4427 9388 4431 9366 

$$

MNC079-130130-
/O.CON.KMPX.SV.W.0008.000000T0000Z-220413T0130Z/
Le Sueur MN-
817 PM CDT Tue Apr 12 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHERN LE SUEUR COUNTY...

At 816 PM CDT, severe thunderstorms were located along a line
extending from near Cleveland to 6 miles southeast of Le Center,
moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

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

These severe thunderstorms will remain over mainly rural areas of
southern Le Sueur County, including the following locations... Lake
Jefferson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These are dangerous storms. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4435 9365 4434 9362 4433 9362 4426 9372
      4424 9378 4424 9400 4438 9385
TIME...MOT...LOC 0116Z 225DEG 39KT 4427 9388 4431 9366 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Borghoff

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 7:14 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	46 min
Apr 12, 7:22 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Renville, Sibley	38 min
Apr 12, 7:39 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Yellow Medicine	31 min
Apr 12, 7:44 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Steele	30 min
Apr 12, 7:48 PM CDT	Special Weather Statement	MPX	McLeod	27 min
Apr 12, 7:50 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	25 min
Apr 12, 7:54 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Waseca	36 min
Apr 12, 8:30 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	20 min
Apr 12, 8:39 PM CDT	Severe Thunderstorm Warning	MPX	Martin	34 min
Apr 12, 8:58 PM CDT	Special Weather Statement	MPX	McLeod	32 min
Apr 12, 9:06 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Martin	54 min
Apr 12, 9:14 PM CDT	Special Weather Statement	MPX	Sibley	31 min
Apr 12, 9:23 PM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Sibley	37 min
Apr 12, 9:35 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Scott	25 min
Apr 12, 9:42 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	63 min
Apr 12, 9:53 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Ramsey	37 min
Apr 12, 10:37 PM CDT	Special Weather Statement	MPX	Wright	38 min
Apr 13, 4:01 AM CDT	Wind Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 32 more	39 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2022 Every severe thunderstorm warning in 2022

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.