Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Twin Cities, MN

April 5, 20214 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 5, 2021, 9:54 PM CDT for 4 counties in Minnesota. It was in force for 36 min. 3 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 5, 2021, 9:54 PM CDT (02:54 UTC)
Expired: Apr 5, 2021, 10:30 PM CDT
In force: 36 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Carver County, MN, McLeod County, MN, Meeker County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 49 km from the middle of the area, began a volume at 02:56 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 5, 10:14 PM CDT	HAIL 1	4 Wnw Winsted, MN	PHONED IN REPORT.
Apr 5, 10:27 PM CDT	HAIL 1	5 Nne Silver Lake, MN
Apr 5, 10:30 PM CDT	HAIL 1	Winsted, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.9 hours before the alert went out and 47 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: 1134 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 2481 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 256 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

177 
WUUS53 KMPX 060254
SVRMPX
MNC019-085-093-171-060330-
/O.NEW.KMPX.SV.W.0008.210406T0254Z-210406T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
954 PM CDT Mon Apr 5 2021

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southwestern Wright County in central Minnesota...
  Southeastern Meeker County in central Minnesota...
  Northeastern McLeod County in central Minnesota...
  Northwestern Carver County in east central Minnesota...

* Until 1030 PM CDT.

* At 954 PM CDT, a severe thunderstorm was located near Dassel, or 9
  miles northeast of Hutchinson, moving east at 35 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.

* This severe thunderstorm will be near...
  Cokato around 1005 PM CDT.
  Winsted and Howard Lake around 1015 PM CDT.
  Montrose around 1025 PM CDT.
  Watertown around 1030 PM CDT.

Other locations impacted by this severe thunderstorm include Waverly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4494 9439 4505 9440 4510 9382 4492 9380
TIME...MOT...LOC 0254Z 265DEG 30KT 4501 9429 

HAIL...1.00IN
WIND...60MPH
 
$$

TDH

2 follow-up statements

705 
WWUS53 KMPX 060315
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1015 PM CDT Mon Apr 5 2021

MNC019-085-093-171-060330-
/O.CON.KMPX.SV.W.0008.000000T0000Z-210406T0330Z/
Wright MN-Meeker MN-McLeod MN-Carver MN-
1015 PM CDT Mon Apr 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHWESTERN WRIGHT...SOUTHEASTERN MEEKER...NORTHEASTERN MCLEOD
AND NORTHWESTERN CARVER COUNTIES...

At 1014 PM CDT, a severe thunderstorm was located over Howard Lake, 
or 14 miles southwest of Buffalo, moving east at 35 mph. Quarter 
sized hail was reported northwest of Winsted.

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.

This severe storm will be near...
  Montrose around 1025 PM CDT.
  Watertown around 1030 PM CDT.

Other locations impacted by this severe thunderstorm include Waverly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4494 9439 4505 9440 4510 9382 4492 9380
TIME...MOT...LOC 0314Z 265DEG 30KT 4502 9405 

HAIL...1.00IN
WIND...60MPH
 
$$

TDH

007 
WWUS53 KMPX 060323
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1023 PM CDT Mon Apr 5 2021

MNC019-085-093-171-060333-
/O.EXP.KMPX.SV.W.0008.000000T0000Z-210406T0330Z/
Wright MN-Meeker MN-McLeod MN-Carver MN-
1023 PM CDT Mon Apr 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WRIGHT...
SOUTHEASTERN MEEKER...NORTHEASTERN MCLEOD AND NORTHWESTERN CARVER
COUNTIES WILL EXPIRE AT 1030 PM CDT...
    
The severe thunderstorm which prompted the warning remains strong 
and another warning will be issued.

LAT...LON 4494 9439 4505 9440 4510 9382 4492 9380
TIME...MOT...LOC 0323Z 265DEG 30KT 4502 9397 

$$

TDH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 7:37 PM CDT	Special Weather Statement	MPX	Renville	38 min
Apr 5, 7:40 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	50 min
Apr 5, 8:19 PM CDT	Special Weather Statement	MPX	Kandiyohi, Meeker	41 min
Apr 5, 8:26 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti, Sherburne, Wright	49 min
Apr 5, 8:59 PM CDT	Special Weather Statement	MPX	Redwood	46 min
Apr 5, 9:00 PM CDT	Special Weather Statement	MPX	Meeker	45 min
Apr 5, 9:10 PM CDT	Special Weather Statement	MPX	Sherburne	35 min
Apr 5, 9:16 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Stearns, Wright	29 min
Apr 5, 9:20 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	25 min
Apr 5, 9:30 PM CDT	Special Weather Statement	MPX	Renville	30 min
Apr 5, 9:45 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	45 min
Apr 5, 9:48 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs	31 min
Apr 5, 10:07 PM CDT	Special Weather Statement	MPX	Kanabec	8 min
Apr 5, 10:10 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	20 min
Apr 5, 10:27 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Wright	33 min
Apr 5, 10:34 PM CDT	Special Weather Statement	MPX	Kanabec	26 min
Apr 5, 10:37 PM CDT	Special Weather Statement	MPX	Wright	23 min
Apr 5, 10:59 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Hennepin, Wright	46 min
Apr 5, 11:03 PM CDT	Special Weather Statement	MPX	Hennepin, Ramsey, Scott	42 min
Apr 5, 11:36 PM CDT	Special Weather Statement	MPX	Anoka	39 min
Apr 5, 11:45 PM CDT	Special Weather Statement	MPX	Anoka	45 min
Apr 5, 11:49 PM CDT	Special Weather Statement	MPX	Dakota, Washington	41 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every severe thunderstorm warning in 2021

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.