Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 40, NWS Twin Cities, MN

June 22, 201510 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 22, 2015, 6:00 AM CDT for 10 counties in Minnesota. It was in force for 45 min. 2 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 22, 2015, 6:00 AM CDT (11:00 UTC)
Expired: Jun 22, 2015, 6:45 AM CDT
In force: 45 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Freeborn County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Rice County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 10:59 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 22, 6:10 AM CDT	TSTM WND DMG	Vernon Center, MN	REPORT OF NUMEROUS TREES DOWN...A ROOF TORN OFF OF A COMMERCIAL BUILDING...AND POWER OUTAGES.
Jun 22, 6:41 AM CDT	TSTM WND GST 60	N Mankato, MN	GUST OF AT LEAST 60 MPH IN NORTH MANKATO REPORTED VIA TWITTER.

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 22, 2:25 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 11.0 hours before the alert went out and 110 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: 10 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 2425 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

010 
WUUS53 KMPX 221100
SVRMPX
MNC013-015-043-047-079-091-103-131-161-165-221145-
/O.NEW.KMPX.SV.W.0040.150622T1100Z-150622T1145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
600 AM CDT MON JUN 22 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHEASTERN WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHEASTERN BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...
  WESTERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
  WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...
  NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHWESTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 645 AM CDT

* AT 559 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR LAFAYETTE TO NEAR LEWISVILLE TO NEAR EAST
  CHAIN...MOVING EAST AT 70 MPH.

  HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  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...
  AMBOY AND VERNON CENTER AROUND 605 AM CDT.
  BLUE EARTH...ELMORE AND GOOD THUNDER AROUND 610 AM CDT.
  MAPLETON AND FROST AROUND 615 AM CDT.
  MINNESOTA LAKE AND BRICELYN AROUND 620 AM CDT.
  PEMBERTON AROUND 625 AM CDT.
  LE CENTER...MANSFIELD AND WALDORF AROUND 630 AM CDT.
  WASECA...MONTGOMERY...NEW RICHLAND...ALDEN AND EMMONS AROUND 635 AM
  CDT.
  ALBERT LEA AND TWIN LAKES AROUND 640 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
NORSELAND...KLOSSNER...MATAWAN...ALMA CITY...KILKENNY...BRUSH
CREEK...GUCKEEN...GREENLAND...EAST CHAIN AND LAKE JEFFERSON.

THIS INCLUDES INTERSTATE 90 BETWEEN MILE MARKERS 108 AND 156.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD 
WIND DAMAGE ACROSS SOUTHWESTERN MINNESOTA. SEEK SHELTER NOW INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
 
&&

LAT...LON 4351 9433 4444 9445 4443 9340 4385 9341
      4385 9340 4350 9338
TIME...MOT...LOC 1059Z 261DEG 61KT 4442 9443 4388 9433 4352 9433 

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

LS

1 follow-up statement

187 
WWUS53 KMPX 221121
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
621 AM CDT MON JUN 22 2015

MNC013-015-043-047-079-091-103-131-161-165-221145-
/O.CON.KMPX.SV.W.0040.000000T0000Z-150622T1145Z/
MARTIN MN-BLUE EARTH MN-FARIBAULT MN-WATONWAN MN-BROWN MN-
FREEBORN MN-WASECA MN-NICOLLET MN-RICE MN-LE SUEUR MN-
621 AM CDT MON JUN 22 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM CDT
FOR EASTERN MARTIN...BLUE EARTH...FARIBAULT...NORTHEASTERN
WATONWAN...SOUTHEASTERN BROWN...WESTERN FREEBORN...WASECA...
NICOLLET...SOUTHWESTERN RICE AND LE SUEUR COUNTIES...

AT 620 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR RUSH RIVER TO NEAR MAPLETON TO FROST...MOVING
EAST AT 70 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE 
         HOMES...ROOFS AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
MANKATO...ALBERT LEA...NEW ULM...NORTH MANKATO...ST. PETER...
WASECA...BLUE EARTH...MONTGOMERY...LAKE CRYSTAL...LE CENTER...EAGLE
LAKE AND WELLS.

THIS INCLUDES INTERSTATE 90 BETWEEN MILE MARKERS 108 AND 156.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD 
WIND DAMAGE ACROSS SOUTHWESTERN MINNESOTA. SEEK SHELTER NOW INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
 
&&

LAT...LON 4351 9433 4444 9445 4443 9340 4385 9341
      4385 9340 4350 9338
TIME...MOT...LOC 1120Z 261DEG 61KT 4447 9399 4393 9389 4357 9389 

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

LS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 3:38 AM CDT	Special Weather Statement	MPX	Kanabec	22 min
Jun 22, 3:51 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec	24 min
Jun 22, 4:21 AM CDT	Special Weather Statement	MPX	Redwood	39 min
Jun 22, 4:24 AM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Faribault, Freeborn, Waseca, Watonwan	36 min
Jun 22, 4:56 AM CDT	Special Weather Statement	MPX	Yellow Medicine	34 min
Jun 22, 5:10 AM CDT	Special Weather Statement	MPX	Freeborn, Steele, Waseca	50 min
Jun 22, 5:19 AM CDT	Severe Thunderstorm Warning	MPX	Waseca	26 min
Jun 22, 5:23 AM CDT	Special Weather Statement	MPX	Redwood	112 min
Jun 22, 5:23 AM CDT	Severe Thunderstorm Warning	MPX	Martin, Watonwan	52 min
Jun 22, 5:34 AM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Redwood	41 min
Jun 22, 5:40 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele, Waseca	50 min
Jun 22, 6:20 AM CDT	Special Weather Statement	MPX	Dakota	25 min
Jun 22, 6:22 AM CDT	High Wind Warning	MPX	Blue Earth, Brown, Faribault, Freeborn, Le Sueur, Martin and 6 more	5 hr
Jun 22, 6:23 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	22 min
Jun 22, 6:31 AM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Le Sueur, Rice, Steele, Waseca	59 min
Jun 22, 7:13 AM CDT	Special Weather Statement	MPX	Le Sueur	47 min
Jun 22, 7:16 AM CDT	Wind Advisory	MPX	Anoka, Carver, Chippewa, Dakota, Goodhue, Hennepin and 14 more	4 hr
Jun 22, 7:22 AM CDT	Special Weather Statement	MPX	Freeborn, Steele, Waseca	23 min
Jun 22, 8:12 AM CDT	Special Weather Statement	MPX	Chisago	33 min
Jun 22, 8:29 AM CDT	Special Weather Statement	MPX	Ramsey	31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015 Every severe thunderstorm warning in 2015

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.