Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 17, NWS Twin Cities, MN

June 6, 20204 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 6, 2020, 9:03 PM CDT for 4 counties in Minnesota. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 6, 2020, 9:03 PM CDT (02:03 UTC)
Expired
Jun 6, 2020, 9:45 PM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Brown County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN

The radar

The Minneapolis radar (KMPX), 107 km from the middle of the area, began a volume at 02:03 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.1 hours before the alert went out and 105 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2020-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2020-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939Sfc1 km3 kmRMLM
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
1903 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

522 
WUUS53 KMPX 070203
SVRMPX
MNC015-103-127-129-070245-
/O.NEW.KMPX.SV.W.0017.200607T0203Z-200607T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
903 PM CDT Sat Jun 6 2020

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Redwood County in southwestern Minnesota...
  North central Brown County in south central Minnesota...
  Southeastern Renville County in central Minnesota...
  Northwestern Nicollet County in south central Minnesota...

* Until 945 PM CDT.

* At 902 PM CDT, a severe thunderstorm was located over Redwood
  Falls, moving east at 45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Redwood Falls, Fairfax, Morgan, Franklin, Morton, Clements, North
  Redwood and Redwood Falls Airport.

This includes U.S. Highway 71 between mile markers 64 and 86.
 
This includes  Jackpot Junction Casino.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4436 9517 4456 9523 4470 9464 4461 9462
      4446 9463 4445 9460 4442 9459 4442 9473
TIME...MOT...LOC 0202Z 254DEG 40KT 4450 9509 

HAIL...<.75IN
WIND...70MPH
 
$$

TDH
2 follow-up statements
230 
WWUS53 KMPX 070224
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
924 PM CDT Sat Jun 6 2020

MNC015-103-127-129-070245-
/O.CON.KMPX.SV.W.0017.000000T0000Z-200607T0245Z/
Redwood MN-Brown MN-Renville MN-Nicollet MN-
924 PM CDT Sat Jun 6 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR EAST CENTRAL REDWOOD...NORTH CENTRAL BROWN...SOUTHEASTERN
RENVILLE AND NORTHWESTERN NICOLLET COUNTIES...

At 924 PM CDT, a severe thunderstorm was located near Franklin, or 14
miles east of Redwood Falls, moving east at 40 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Fairfax, Morgan, Franklin and Morton. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4438 9502 4452 9499 4463 9495 4470 9464
      4461 9462 4446 9463 4445 9460 4442 9459
      4442 9473
TIME...MOT...LOC 0224Z 254DEG 34KT 4455 9482 

HAIL...<.75IN
WIND...70MPH
 
$$

TDH
359 
WWUS53 KMPX 070238
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
938 PM CDT Sat Jun 6 2020

MNC015-103-127-129-070248-
/O.EXP.KMPX.SV.W.0017.000000T0000Z-200607T0245Z/
Redwood MN-Brown MN-Renville MN-Nicollet MN-
938 PM CDT Sat Jun 6 2020

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL REDWOOD...NORTH
CENTRAL BROWN...SOUTHEASTERN RENVILLE AND NORTHWESTERN NICOLLET
COUNTIES WILL EXPIRE AT 945 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 4438 9502 4452 9499 4463 9495 4470 9464
      4461 9462 4446 9463 4445 9460 4442 9459
      4442 9473
TIME...MOT...LOC 0238Z 254DEG 40KT 4458 9466 

$$

TDH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 7:36 PM CDTSpecial Weather StatementMPXRamsey39 min
Jun 7, 1:30 AM CDTSpecial Weather StatementMPXBenton, Morrison, Todd60 min
Jun 7, 1:32 AM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns28 min
Jun 7, 2:00 AM CDTSevere Thunderstorm WarningMPXBenton, Morrison46 min
Jun 7, 2:03 AM CDTSevere Thunderstorm WarningMPXBenton, Isanti, Mille Lacs, Morrison, Sherburne57 min
Jun 7, 2:56 AM CDTSpecial Weather StatementMPXChisago, Isanti, Kanabec, Mille Lacs64 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2020Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.