Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 67, NWS Twin Cities, MN

June 9, 2018Freeborn County, Steele County, Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 9, 2018, 11:33 AM CDT for Freeborn County, Steele County, Waseca County, 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 9, 2018, 11:33 AM CDT (16:33 UTC)
Expired: Jun 9, 2018, 12:15 PM CDT
In force: 42 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Freeborn County, MN, Steele County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 16:36 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 12:00Z, 4.6 hours before the alert went out and 112 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: 395 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

432 
WUUS53 KMPX 091633
SVRMPX
MNC047-147-161-091715-
/O.NEW.KMPX.SV.W.0067.180609T1633Z-180609T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1133 AM CDT SAT JUN 9 2018

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  North central Freeborn County in south central Minnesota...
  Southern Steele County in south central Minnesota...
  Southeastern Waseca County in south central Minnesota...

* Until 1215 PM CDT

* At 1133 AM CDT, a severe thunderstorm was located near Hartland, or
  11 miles north of Albert Lea, moving northeast at 25 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. 

* This severe thunderstorm will be near,
  Ellendale and Geneva around 1150 AM CDT. 

Other locations impacted by this severe thunderstorm include Steele
Center, Hope and Lemond.

This includes Interstate 35 between mile markers 21 and 36.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4381 9355 4405 9332 4388 9308 4373 9346
TIME...MOT...LOC 1633Z 228DEG 20KT 4382 9342 

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

SPD

2 follow-up statements

647 
WWUS53 KMPX 091655
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1155 AM CDT SAT JUN 9 2018

MNC161-091705-
/O.CAN.KMPX.SV.W.0067.000000T0000Z-180609T1715Z/
Waseca MN-
1155 AM CDT SAT JUN 9 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASECA COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

LAT...LON 4381 9345 4395 9329 4385 9316 4382 9323
      4375 9340
TIME...MOT...LOC 1655Z 240DEG 14KT 4382 9332 

$$

MNC047-147-091715-
/O.CON.KMPX.SV.W.0067.000000T0000Z-180609T1715Z/
Freeborn MN-Steele MN-
1155 AM CDT SAT JUN 9 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT
FOR NORTH CENTRAL FREEBORN AND SOUTH CENTRAL STEELE COUNTIES...

At 1155 AM CDT, Doppler radar indicated a severe thunderstorm capable
of producing large hail up to ping pong ball size. This storm was
located over Geneva, or 11 miles north of Albert Lea, moving
northeast at 15 mph.

This severe storm will be near...
  Ellendale and Geneva around 1205 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4381 9345 4395 9329 4385 9316 4382 9323
      4375 9340
TIME...MOT...LOC 1655Z 240DEG 14KT 4382 9332 

$$

SPD

011 
WWUS53 KMPX 091714
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1214 PM CDT SAT JUN 9 2018

MNC047-147-091723-
/O.EXP.KMPX.SV.W.0067.000000T0000Z-180609T1715Z/
Freeborn MN-Steele MN-
1214 PM CDT SAT JUN 9 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL FREEBORN AND
SOUTH CENTRAL STEELE COUNTIES WILL EXPIRE AT 1215 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.

LAT...LON 4381 9345 4395 9329 4385 9316 4382 9323
      4375 9340
TIME...MOT...LOC 1713Z 228DEG 20KT 4382 9333 

$$

SPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 6:18 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott	27 min
Jun 9, 7:45 AM CDT	Special Weather Statement	MPX	Chippewa	30 min
Jun 9, 9:07 AM CDT	Special Weather Statement	MPX	Redwood, Yellow Medicine	68 min
Jun 9, 9:09 AM CDT	Special Weather Statement	MPX	Renville	66 min
Jun 9, 9:20 AM CDT	Special Weather Statement	MPX	Scott	55 min
Jun 9, 10:05 AM CDT	Flash Flood Warning	MPX	Carver	3 hr
Jun 9, 10:42 AM CDT	Special Weather Statement	MPX	Nicollet	48 min
Jun 9, 10:54 AM CDT	Flash Flood Watch	MPX	Blue Earth, Brown, Faribault, Freeborn, Le Sueur, Martin and 5 more	8 hr
Jun 9, 10:55 AM CDT	Special Weather Statement	MPX	Blue Earth, Waseca	65 min
Jun 9, 11:22 AM CDT	Special Weather Statement	MPX	Steele	23 min
Jun 9, 11:28 AM CDT	Special Weather Statement	MPX	Le Sueur	47 min
Jun 9, 12:04 PM CDT	Special Weather Statement	MPX	Scott	41 min
Jun 9, 12:16 PM CDT	Special Weather Statement	MPX	Steele	44 min
Jun 9, 1:49 PM CDT	Special Weather Statement	MPX	Faribault	26 min
Jun 9, 4:42 PM CDT	River Flood Warning	MPX	Brown	58 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018 Every severe thunderstorm warning in 2018

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.