Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 28, NWS Twin Cities, MN

June 11, 2021Douglas County, Pope County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2021, 6:09 AM CDT for Douglas County, Pope County, Minnesota. It was in force for 51 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: Jun 11, 2021, 6:09 AM CDT (11:09 UTC)
Expired: Jun 11, 2021, 7:00 AM CDT
In force: 51 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Douglas County, MN, Pope County, MN

The radar

The Minneapolis radar (KMPX), 180 km from the middle of the area, began a volume at 11:13 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, 6:20 AM CDT	TSTM WND GST 52	2 Ssw Evansville, MN	MNDOT RWIS MEASUREMENT ALONG I-94 AT THE EVANSVILLE EXIT.
Jun 11, 6:38 AM CDT	TSTM WND GST 53	2 Ssw Alexandria, MN	MEASURED AT THE ALEXANDRIA AIRPORT. DISPATCH REPORTED SOME TREE LIMBS DOWN IN ALEXANDRIA, WITH A FEW ON POWER LINES.
Jun 11, 6:40 AM CDT	TSTM WND GST 59	8 Ssw Starbuck, MN	MNDOT SENSOR MEASURED WIND GUST OF 59 MPH.

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, 11.2 hours before the alert went out and 177 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: 1246 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 2436 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted.

564 
WUUS53 KMPX 111109
SVRMPX
MNC041-121-111200-
/O.NEW.KMPX.SV.W.0028.210611T1109Z-210611T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
609 AM CDT Fri Jun 11 2021

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Douglas County in west central Minnesota...
  Northwestern Pope County in west central Minnesota...

* Until 700 AM CDT.

* At 608 AM CDT, severe thunderstorms were located along a line
  extending from near Ashby to near Barrett to 5 miles north of
  Donnelly, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Evansville around 625 AM CDT.

Other locations in the path of these severe thunderstorms include
Brandon, Kensington, Lowry, Carlos and Alexandria.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4611 9515 4575 9514 4567 9536 4541 9569
      4541 9574 4610 9577
TIME...MOT...LOC 1108Z 263DEG 36KT 4609 9589 4598 9587 4577 9601 

HAIL...<.75IN
WIND...60MPH
 
$$

BPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 5:50 AM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	55 min
Jun 11, 5:55 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Stevens, Swift	50 min
Jun 11, 6:36 AM CDT	Special Weather Statement	MPX	Chippewa, Swift, Yellow Medicine	39 min
Jun 11, 6:54 AM CDT	Special Weather Statement	MPX	Douglas, Pope, Todd	66 min
Jun 11, 7:22 AM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Yellow Medicine	38 min
Jun 11, 7:49 AM CDT	Special Weather Statement	MPX	Benton, Meeker, Stearns	56 min
Jun 11, 7:53 AM CDT	Special Weather Statement	MPX	Brown, McLeod, Redwood, Renville	67 min
Jun 11, 8:32 AM CDT	Special Weather Statement	MPX	Martin, Watonwan	58 min
Jun 11, 9:15 AM CDT	Special Weather Statement	MPX	Blue Earth, Faribault	60 min
Jun 11, 10:29 AM CDT	Special Weather Statement	MPX	Freeborn, Rice, Steele, Waseca	46 min
Jun 11, 11:04 AM CDT	Special Weather Statement	MPX	Goodhue	56 min
Jun 11, 11:41 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	34 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.