Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 96, NWS Twin Cities, MN

July 1, 20117 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 1, 2011, 5:13 PM CDT for 7 counties in Minnesota. It was in force for 62 min. 26 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: Jul 1, 2011, 5:13 PM CDT (22:13 UTC)
Expired: Jul 1, 2011, 6:15 PM CDT
In force: 62 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 75.0 mph

Counties Kandiyohi County, MN, McLeod County, MN, Meeker County, MN, Renville County, MN, Sibley County, MN, Stearns County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 88 km from the middle of the area, began a volume at 22:13 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
Jul 1, 5:15 PM CDT	HAIL 2	2 S Dassel, MN
Jul 1, 5:17 PM CDT	HAIL 4.25	4 Sw Dassel, MN	VIA SPOTTER NETWORK
Jul 1, 5:18 PM CDT	HAIL 0.75	Cosmos, MN	DIME SIZE HAIL REPORTED FOR SEVERAL MINUTES.
Jul 1, 5:25 PM CDT	TSTM WND DMG	2 Ne Hector, MN	TWO FOOT TREES DOWN.
Jul 1, 5:25 PM CDT	TSTM WND DMG	4 Sw Brownton, MN	SEMI-TRAILER ROLLED INTO DITCH ON COUNTY ROAD 15...THREE MILES SOUTH OF INTERSECTION OF STATE ROAD 212 AND COUNTY ROAD 15. DRIVER INJURED.
Jul 1, 5:30 PM CDT	TSTM WND DMG	Brownton, MN	UPPER THIRD OF LARGE TREE TOPPLED ONTO MINI-VAN...CRUSHING SEVERELY. EIGHT YEAR OLD GIRL WITH MULTIPLE INJURIES ADMITTED TO LOCAL HOSPITAL.
Jul 1, 5:30 PM CDT	TSTM WND DMG	S Hutchinson, MN	ONE AND A HALF INCH DIAMETER BRANCHES DOWN. HIGHWAY 15.
Jul 1, 5:34 PM CDT	TSTM WND GST 58	Hutchinson, MN	REPORTED AT HUTCHINSON AIRPORT
Jul 1, 5:39 PM CDT	HAIL 1	Annandale, MN
Jul 1, 5:40 PM CDT	TSTM WND DMG	14 S Hutchinson, MN	SEMI TRAILER BLOWN OVER.
Jul 1, 5:40 PM CDT	TSTM WND DMG	Hutchinson, MN	2 INCH TO 4 INCH DIAMETER BRANCHES DOWN. MAIN STREET.
Jul 1, 5:40 PM CDT	HAIL 1	Dassel, MN
Jul 1, 5:40 PM CDT	HAIL 1.25	Hutchinson, MN	MAIN STREET
Jul 1, 5:40 PM CDT	HAIL 1.75	Darwin, MN
Jul 1, 5:40 PM CDT	HAIL 2	4 S Dassel, MN
Jul 1, 5:41 PM CDT	HAIL 1	Grove City, MN
Jul 1, 5:46 PM CDT	TSTM WND DMG	14 S Hutchinson, MN	SEMI BLOWN OFF THE ROAD INTO THE DITCH.
Jul 1, 5:55 PM CDT	TSTM WND DMG	Hutchinson, MN	CROW RIVER VET HOSPITAL ON HIGHWAY 7 ROOF OFF. POWER POLE DOWN. ADDRESS IS 890 SOUTH GRADE ROAD. ESTIMATED TIME.
Jul 1, 6:00 PM CDT	TSTM WND DMG	1 S Cosmos, MN	SEVERAL LARGE TREES DOWN...A FEW HOMES DAMAGED.
Jul 1, 6:00 PM CDT	TSTM WND DMG	3 Nw Silver Lake, MN	BIG TREES DOWN. 24 INCH TREE SPLIT OFF.
Jul 1, 6:00 PM CDT	TSTM WND DMG	6 Sw Litchfield, MN	24 INCH DIAMETER TREE UPROOTED.
Jul 1, 6:00 PM CDT	TSTM WND DMG	Darwin, MN	24 INCH TREE DOWN
Jul 1, 6:00 PM CDT	TSTM WND DMG	Kingston, MN	ESTIMATED 70 MPH WIND GUSTS TOOK OUT SEVERAL LARGE TREE LIMBS AND UPROOTED A TREE.
Jul 1, 6:06 PM CDT	HAIL 1	1 N South Haven, MN
Jul 1, 6:17 PM CDT	TSTM WND DMG	Hutchinson, MN	MANY LARGE TREES DOWNED. ROOF DAMAGE TO HOME RESIDENCE.
Jul 1, 6:25 PM CDT	TSTM WND DMG	Annandale, MN	MULTIPLE REPORTS OF DOWNED TREES BLOCKING ROADS. POWER LINES DOWN OVER ROADS.

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
Jul 1, 2:08 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.2 hours before the alert went out and 85 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: 3970 J/kg
Mixed-layer CIN: -245 J/kg
Mixed-layer LCL: 1089 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.7

Open this sounding in Storm Lab

The text

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

557 
WUUS53 KMPX 012213
SVRMPX
MNC067-085-093-129-143-145-171-012315-
/O.NEW.KMPX.SV.W.0096.110701T2213Z-110701T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
513 PM CDT FRI JUL 1 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN KANDIYOHI COUNTY IN CENTRAL MINNESOTA...
  MCLEOD COUNTY IN CENTRAL MINNESOTA...
  MEEKER COUNTY IN CENTRAL MINNESOTA...
  EASTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
  NORTHWESTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...
  SOUTHEASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  WESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...

* UNTIL 615 PM CDT

* AT 509 PM CDT...TRAINED SPOTTERS REPORTED A LINE OF SEVERE
  THUNDERSTORMS WITH HALF DOLLAR SIZE HAIL AND DESTRUCTIVE WINDS IN
  EXCESS OF 75 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM SVEA TO THORPE TO 6 MILES NORTHWEST OF FAIRFAX...AND MOVING
  NORTHEAST AT 50 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  WILLMAR...
  LITCHFIELD...
  HUTCHINSON...
  THORPE...
  LAKE LILLIAN...
  SVEA...
  PRIAM...
  FAIRFAX...
  BLOMKEST...
  FRANKLIN...
  HECTOR...
  COSMOS...
  KANDIYOHI...
  BUFFALO LAKE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

&&

LAT...LON 4505 9525 4543 9442 4530 9407 4479 9405
      4463 9443 4449 9483 4452 9489 4486 9489
TIME...MOT...LOC 2213Z 233DEG 42KT 4508 9500 4493 9474
          4463 9475
WIND...HAIL 75MPH 1.25IN

$$

JLT

3 follow-up statements

138 
WWUS53 KMPX 012221
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
521 PM CDT FRI JUL 1 2011

MNC067-085-093-129-143-145-171-012315-
/O.CON.KMPX.SV.W.0096.000000T0000Z-110701T2315Z/
KANDIYOHI MN-MCLEOD MN-MEEKER MN-RENVILLE MN-SIBLEY MN-STEARNS MN-
WRIGHT MN-
521 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WRIGHT...SOUTHEASTERN STEARNS...NORTHWESTERN SIBLEY...EASTERN
RENVILLE...MEEKER...MCLEOD AND SOUTHERN KANDIYOHI COUNTIES UNTIL 615
PM CDT...

AT 518 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING HALF DOLLAR SIZE HAIL...AND DESTRUCTIVE WINDS
IN EXCESS OF 75 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WILLMAR TO ATWATER TO CORVUSO TO BUFFALO LAKE...MOVING
NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  LITCHFIELD...HUTCHINSON...LAKESIDE...STEWART...GROVE CITY...CEDAR
  MILLS...BROWNTON...MANANNAH...DARWIN...BISCAY...GLENCOE...EDEN
  VALLEY...DASSEL...SILVER LAKE AND WATKINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF 
THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN 
UPROOT TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND 
WINDOWS. EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL 
IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. 
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
PORTIONS OF SOUTHWEST MINNESOTA. SEEK SHELTER NOW INSIDE A STURDY 
STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4505 9525 4543 9442 4530 9407 4479 9405
      4463 9443 4449 9483 4452 9489 4486 9489
TIME...MOT...LOC 2221Z 217DEG 44KT 4516 9498 4515 9477
          4497 9460 4471 9458
WIND...HAIL 75MPH 1.25IN

$$

JLT

747 
WWUS53 KMPX 012234
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
534 PM CDT FRI JUL 1 2011

MNC067-085-093-129-143-145-171-012315-
/O.CON.KMPX.SV.W.0096.000000T0000Z-110701T2315Z/
KANDIYOHI MN-MCLEOD MN-MEEKER MN-RENVILLE MN-SIBLEY MN-STEARNS MN-
WRIGHT MN-
534 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WRIGHT...SOUTHEASTERN STEARNS...NORTHWESTERN SIBLEY...EASTERN
RENVILLE...MEEKER...MCLEOD AND SOUTHERN KANDIYOHI COUNTIES UNTIL 615
PM CDT...

AT 532 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING HALF DOLLAR SIZE HAIL...AND DESTRUCTIVE
HURRICANE FORCE WINDS IN EXCESS OF 80 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM SPICER TO GROVE CITY TO 7 MILES NORTH OF
HUTCHINSON TO BROWNTON...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  BROWNTON...DARWIN...DASSEL...BISCAY...SILVER LAKE...COKATO...
  MANANNAH...GLENCOE...HOWARD LAKE...EDEN VALLEY...WATKINS...SOUTH
  HAVEN...KIMBALL...FAIRHAVEN AND ANNANDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
RENVILLE AND REDWOOD COUNTIES. THIS IS AN EXTREMELY DANGEROUS 
SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS!

&&

LAT...LON 4505 9525 4543 9442 4530 9407 4479 9405
      4463 9443 4449 9483 4452 9489 4486 9489
TIME...MOT...LOC 2233Z 243DEG 47KT 4522 9484 4518 9461
          4499 9435 4474 9439
WIND...HAIL 80MPH 1.25IN

$$

JLT

178 
WWUS53 KMPX 012241
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
541 PM CDT FRI JUL 1 2011

MNC067-085-093-129-143-145-171-012315-
/O.CON.KMPX.SV.W.0096.000000T0000Z-110701T2315Z/
KANDIYOHI MN-MCLEOD MN-MEEKER MN-RENVILLE MN-SIBLEY MN-STEARNS MN-
WRIGHT MN-
541 PM CDT FRI JUL 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WRIGHT...SOUTHEASTERN STEARNS...NORTHWESTERN SIBLEY...EASTERN
RENVILLE...MEEKER...MCLEOD AND SOUTHERN KANDIYOHI COUNTIES UNTIL 615
PM CDT...

AT 536 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING GOLF BALL SIZE HAIL...AND DESTRUCTIVE
HURRICANE FORCE WINDS IN EXCESS OF 80 MPH.  THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 5 MILES SOUTH OF HAWICK TO 6 MILES NORTH
OF LITCHFIELD TO 5 MILES SOUTH OF DASSEL TO BROWNTON...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  BISCAY...COKATO...SILVER LAKE...MANANNAH...GLENCOE...EDEN VALLEY...
  HOWARD LAKE...WATKINS...KIMBALL...SOUTH HAVEN...FAIRHAVEN...
  ANNANDALE...ST NICHOLAS...STOCKHOLM AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS AND HAIL...WHICH
WILL UPROOT TREES...DOWN POWER LINES...AND PRODUCE WIDESPREAD DAMAGE
TO BUILDINGS AND VEHICLES. EVACUATE MOBILE HOMES AS THEY MAY BE
OVERTURNED. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY
FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE. 
THIS IS AN EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4505 9525 4543 9442 4530 9407 4479 9405
      4463 9443 4449 9483 4452 9489 4486 9489
TIME...MOT...LOC 2240Z 243DEG 47KT 4526 9472 4522 9449
          4503 9423 4478 9428
WIND...HAIL 80MPH 1.75IN

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 4:05 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville, Yellow Medicine	55 min
Jul 1, 4:31 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	59 min
Jul 1, 4:37 PM CDT	Tornado Warning	MPX	Redwood, Renville	23 min
Jul 1, 4:53 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Redwood, Renville, Sibley	67 min
Jul 1, 4:57 PM CDT	Tornado Warning	MPX	Redwood, Renville	33 min
Jul 1, 4:59 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison, Stearns	61 min
Jul 1, 5:27 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti, Sherburne, Wright	48 min
Jul 1, 5:38 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Kanabec, Mille Lacs, Morrison	67 min
Jul 1, 5:52 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Benton, Hennepin, Isanti, Meeker, Mille Lacs and 3 more	53 min
Jul 1, 6:02 PM CDT	Special Weather Statement	MPX	Carver, Hennepin, Scott	43 min
Jul 1, 6:16 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison, Stearns	29 min
Jul 1, 6:20 PM CDT	Tornado Warning	MPX	Benton, Sherburne, Stearns	25 min
Jul 1, 6:27 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti, Kanabec, Mille Lacs	63 min
Jul 1, 6:42 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Benton, Chisago, Hennepin, Isanti, Kanabec and 5 more	63 min
Jul 1, 6:42 PM CDT	Severe Thunderstorm Warning	MPX	Martin	33 min
Jul 1, 6:56 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet	34 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011 Every severe thunderstorm warning in 2011

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.