Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 54, NWS Twin Cities, MN

June 11, 20174 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2017, 6:50 AM CDT for 4 counties in Minnesota. It was in force for 55 min. 12 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: Jun 11, 2017, 6:50 AM CDT (11:50 UTC)
Expired: Jun 11, 2017, 7:45 AM CDT
In force: 55 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 70.0 mph

Counties Kandiyohi County, MN, Meeker County, MN, Redwood County, MN, Renville County, MN

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 11:53 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 11, 7:10 AM CDT	TSTM WND DMG	Pennock, MN	CORRECTED EVENT TIME. 8 TO 10 INCH TREES DOWN ON ROAD.
Jun 11, 7:10 AM CDT	TSTM WND GST 65	Pennock, MN	ESTIMATED 60 TO 70 MPH GUST.
Jun 11, 7:10 AM CDT	HAIL 1.25	Pennock, MN
Jun 11, 7:13 AM CDT	TSTM WND GST 51	2 W Olivia, MN	AWOS STATION OVL, OLIVIA AP.
Jun 11, 7:20 AM CDT	TSTM WND GST 50	1 Nnw Willmar, MN	KWLM RADIO.
Jun 11, 7:20 AM CDT	HAIL 0.75	1 Nnw Willmar, MN	KWLM RADIO.
Jun 11, 7:25 AM CDT	TSTM WND DMG	Pennock, MN	8 TO 10 INCH TREES DOWN ON ROAD.
Jun 11, 7:28 AM CDT	TSTM WND DMG	Lake Lillian, MN	POWER LINES DOWN.
Jun 11, 7:32 AM CDT	TSTM WND DMG	Grove City, MN	TREE BRANCHES DOWN.
Jun 11, 7:45 AM CDT	TSTM WND DMG	6 Nw Blomkest, MN	GROVE BLOWN DOWN AND GRAIN BIN DOWN. TIME ESTIMATED.
Jun 11, 7:45 AM CDT	TSTM WND DMG	Spicer, MN	NUMEROUS TREES DOWN IN TOWN. TIME ESTIMATED.
Jun 11, 7:47 AM CDT	TSTM WND DMG	Raymond, MN	NUMEROUS TREES DOWN. TIME ESTIMATED.

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 11, 2:37 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 11, 6:28 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 11.8 hours before the alert went out and 99 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: 1841 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1879 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

As transmitted.

701 
WUUS53 KMPX 111150
SVRMPX
MNC067-093-127-129-111245-
/O.NEW.KMPX.SV.W.0054.170611T1150Z-170611T1245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
650 AM CDT SUN JUN 11 2017

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Western Meeker County in central Minnesota...
  Northeastern Redwood County in southwestern Minnesota...
  Kandiyohi County in central Minnesota...
  Renville County in central Minnesota...

* Until 745 AM CDT

* At 648 AM CDT, severe thunderstorms were located along a line
  extending from near Benson to Maynard to near Minnesota Falls to
  Milroy, moving east at 60 mph.

  HAZARD...70 mph wind gusts and quarter size hail. 

  SOURCE...Trained weather spotters measured 71 mph winds along 
           with downed powerlines. 

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings. 

* Severe thunderstorms will be near,
  Renville, Raymond and Prinsburg around 705 AM CDT. 
  Willmar, Redwood Falls and Olivia around 715 AM CDT. 
  New London, Spicer, Bird Island and Morton around 720 AM CDT. 
  Franklin around 725 AM CDT. 
  Hector and Cosmos around 730 AM CDT. 
  Fairfax, Buffalo Lake and Grove City around 735 AM CDT. 

Other locations impacted by these severe thunderstorms include
Bechyn, Delhi, Willmar Airport, Blomkest, Lake Lillian, Green Lake,
Cedar Mills, Litchfield Airport, Kandiyohi and Redwood Falls Airport.

This includes the following highways...
 U.S. Highway 12 between mile markers 64 and 101.
 U.S. Highway 212 between mile markers 63 and 101.
 U.S. Highway 8 in Minnesota near mile marker 6.
 U.S. Highway 71 between mile markers 70 and 144.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4490 9525 4541 9525 4541 9477 4533 9476
      4533 9457 4499 9447 4498 9450 4472 9450
      4471 9463 4448 9463 4447 9481 4449 9486
      4447 9487 4445 9518 4489 9530
TIME...MOT...LOC 1148Z 269DEG 50KT 4524 9560 4491 9551 4483 9549 4444
9558

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

jrb

2 follow-up statements

350 
WWUS53 KMPX 111214
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
714 AM CDT SUN JUN 11 2017

MNC067-093-127-129-111245-
/O.CON.KMPX.SV.W.0054.000000T0000Z-170611T1245Z/
Meeker MN-Redwood MN-Kandiyohi MN-Renville MN-
714 AM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM CDT
FOR WESTERN MEEKER...NORTHEASTERN REDWOOD...KANDIYOHI AND RENVILLE
COUNTIES...

At 713 AM CDT, severe thunderstorms were located along a line
extending from near New London to near Lake Lillian to 6 miles
southwest of Thorpe to near Morton, moving east at 60 mph.

HAZARD...70 mph wind gusts and quarter size hail. 

SOURCE...Trained weather spotters damage and 70 mph winds with this 
         storm. 

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings. 

These severe storms will be near...
  Cosmos around 725 AM CDT. 
  Fairfax around 730 AM CDT. 

Other locations impacted by these severe thunderstorms include
Bechyn, Delhi, Willmar Airport, Blomkest, Lake Lillian, Green Lake,
Cedar Mills, Litchfield Airport, Kandiyohi and Redwood Falls Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4490 9525 4541 9525 4541 9477 4533 9476
      4533 9457 4499 9447 4498 9450 4472 9450
      4471 9463 4448 9463 4447 9481 4449 9486
      4447 9487 4445 9518 4489 9530
TIME...MOT...LOC 1213Z 269DEG 53KT 4528 9501 4495 9493 4487 9491 4448
9500

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

jrb

470 
WWUS53 KMPX 111236
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
736 AM CDT SUN JUN 11 2017

MNC067-093-127-129-111245-
/O.CON.KMPX.SV.W.0054.000000T0000Z-170611T1245Z/
Meeker MN-Redwood MN-Kandiyohi MN-Renville MN-
736 AM CDT SUN JUN 11 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM CDT
FOR WESTERN MEEKER...EAST CENTRAL REDWOOD...EASTERN KANDIYOHI AND
EASTERN RENVILLE COUNTIES...

At 735 AM CDT, severe thunderstorms were located along a line
extending from near Manannah to Cedar Mills to near Hutchinson
Airport to near St George, moving east at 60 mph.

HAZARD...Golf ball size hail and 70 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 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings. 

these severe thunderstorms will remain over mainly rural areas of
western Meeker...east central Redwood...eastern Kandiyohi and eastern
Renville Counties, including the following locations: Litchfield
Airport, Kandiyohi, Redwood Falls Airport, Strout, Thorpe, Corvuso,
Regal, Lake Lillian, Greenleaf and Green Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4541 9514 4541 9477 4533 9476 4533 9457
      4499 9447 4498 9450 4472 9450 4471 9463
      4448 9463 4447 9481 4449 9486 4447 9487
      4445 9518 4476 9497 4501 9490
TIME...MOT...LOC 1235Z 269DEG 50KT 4528 9458 4495 9450 4487 9448 4448
9457

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...70MPH
 
$$

jrb

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 5:56 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift, Yellow Medicine	49 min
Jun 11, 6:09 AM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Swift	36 min
Jun 11, 6:24 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Swift	66 min
Jun 11, 6:27 AM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	48 min
Jun 11, 7:05 AM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	55 min
Jun 11, 7:21 AM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Sibley, Wright	54 min
Jun 11, 7:34 AM CDT	Tornado Warning	MPX	Kandiyohi, Meeker	26 min
Jun 11, 7:38 AM CDT	Severe Thunderstorm Warning	MPX	Stearns, Wright	52 min
Jun 11, 7:50 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Wright	55 min
Jun 11, 7:56 AM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Pope, Stevens, Swift, Yellow Medicine	109 min
Jun 11, 8:00 AM CDT	Special Weather Statement	MPX	Brown	45 min
Jun 11, 8:05 AM CDT	Special Weather Statement	MPX	Benton, Morrison, Sherburne	40 min
Jun 11, 8:10 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, McLeod, Scott, Sibley	50 min
Jun 11, 8:24 AM CDT	Special Weather Statement	MPX	Nicollet	51 min
Jun 11, 8:27 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Dakota, Hennepin, Ramsey, Scott	48 min
Jun 11, 8:38 AM CDT	Special Weather Statement	MPX	Chisago, Isanti	67 min
Jun 11, 8:50 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	40 min
Jun 11, 9:00 AM CDT	Special Weather Statement	MPX	Goodhue, Le Sueur, Rice	60 min
Jun 11, 9:02 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Washington	28 min
Jun 11, 9:37 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	38 min
Jun 11, 9:41 AM CDT	Special Weather Statement	MPX	Benton, Douglas, Morrison, Pope, Stearns, Todd	109 min
Jun 11, 4:08 PM CDT	Special Weather Statement	MPX	Wright	37 min
Jun 11, 4:27 PM CDT	Special Weather Statement	MPX	Isanti	33 min
Jun 11, 5:11 PM CDT	Special Weather Statement	MPX	Wright	34 min
Jun 11, 5:57 PM CDT	Special Weather Statement	MPX	Ramsey	33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2017 Every severe thunderstorm warning in 2017

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.