Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 130, NWS Twin Cities, MN

September 20, 20145 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2014, 4:11 PM CDT for 5 counties in Minnesota. It was in force for 49 min. 6 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: Sep 20, 2014, 4:11 PM CDT (21:11 UTC)
Expired: Sep 20, 2014, 5:00 PM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Minneapolis radar (KMPX), 81 km from the middle of the area, began a volume at 21:14 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
Sep 20, 4:15 PM CDT	TSTM WND DMG	Atwater, MN	TOP HALF OF A LARGE PEAR TREE WAS SNAPPED OFF BY STRONG WINDS. ALSO HAD PEA SIZE HAIL.
Sep 20, 4:44 PM CDT	TSTM WND GST 60	1 W Hutchinson, MN
Sep 20, 4:44 PM CDT	HAIL 0.75	Hutchinson, MN
Sep 20, 4:45 PM CDT	TSTM WND DMG	Hutchinson, MN	TREES SNAPPED OR UPROOTED. NUMEROUS TREES DOWN THROUGHOUT THE CITY.
Sep 20, 4:46 PM CDT	TSTM WND DMG	3 Ne Hutchinson, MN	3 TO 6 INCH TREE BRANCH BROKE OFF.
Sep 20, 5:05 PM CDT	TSTM WND DMG	Biscay, MN	7 TO 8 INCH TREE BRANCH DOWN.

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
Sep 20, 1:26 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.2 hours before the alert went out and 79 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: 295 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 1113 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

716 
WUUS53 KMPX 202111
SVRMPX
MNC067-085-093-129-171-202200-
/O.NEW.KMPX.SV.W.0130.140920T2111Z-140920T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
411 PM CDT SAT SEP 20 2014

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...
  NORTHEASTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
  SOUTHWESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...

* UNTIL 500 PM CDT

* AT 409 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM PAYNESVILLE TO 12 MILES SOUTHWEST OF LITCHFIELD TO
  13 MILES SOUTH OF WILLMAR...AND MOVING SOUTHEAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  LITCHFIELD AROUND 420 PM CDT.
  HUTCHINSON AROUND 430 PM CDT.
  LAKE MARION REGIONAL PARK AROUND 440 PM CDT.
  GLENCOE AROUND 450 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE CORVUSO...COSMOS...CEDAR MILLS...
WATKINS...GREENLEAF...LAKESIDE...HUTCHINSON...DARWIN AND KINGSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4508 9484 4533 9476 4532 9439 4528 9438
      4528 9427 4515 9401 4472 9401 4472 9463
      4500 9523
TIME...MOT...LOC 2111Z 305DEG 45KT 4536 9462 4500 9469
          4494 9511

HAIL...0.75IN
WIND...60MPH

$$

3 follow-up statements

627 
WWUS53 KMPX 202124
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
424 PM CDT SAT SEP 20 2014

MNC067-085-093-129-171-202200-
/O.CON.KMPX.SV.W.0130.000000T0000Z-140920T2200Z/
KANDIYOHI MN-MCLEOD MN-MEEKER MN-RENVILLE MN-WRIGHT MN-
424 PM CDT SAT SEP 20 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT...NORTHEASTERN RENVILLE...MEEKER...MCLEOD AND SOUTHEASTERN
KANDIYOHI COUNTIES UNTIL 500 PM CDT...

AT 422 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 13 MILES EAST OF LAKE KORONIS REGIONAL PARK TO 9 MILES
NORTHWEST OF HUTCHINSON TO 8 MILES NORTHEAST OF OLIVIA...AND MOVING
SOUTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL BE NEAR...
  HUTCHINSON AROUND 435 PM CDT.
  LAKE MARION REGIONAL PARK AROUND 445 PM CDT.
  GLENCOE AROUND 450 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE DARWIN...LAKESIDE...KINGSTON...
DASSEL...COKATO...BISCAY...SMITH LAKE...STEWART AND SILVER LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4491 9503 4509 9472 4532 9461 4532 9441
      4528 9438 4528 9427 4515 9401 4472 9401
      4472 9463
TIME...MOT...LOC 2123Z 303DEG 44KT 4531 9444 4496 9451
          4487 9492

HAIL...0.75IN
WIND...60MPH

$$

911 
WWUS53 KMPX 202134
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
434 PM CDT SAT SEP 20 2014

MNC067-202144-
/O.CAN.KMPX.SV.W.0130.000000T0000Z-140920T2200Z/
KANDIYOHI MN-
434 PM CDT SAT SEP 20 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN KANDIYOHI COUNTY
IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4528 9438 4528 9427 4515 9401 4472 9401
      4472 9463 4484 9489 4490 9482 4489 9476
      4493 9476 4503 9462 4532 9441
TIME...MOT...LOC 2134Z 303DEG 44KT 4523 9428 4488 9436
          4479 9477

$$

MNC085-093-129-171-202200-
/O.CON.KMPX.SV.W.0130.000000T0000Z-140920T2200Z/
MCLEOD MN-MEEKER MN-RENVILLE MN-WRIGHT MN-
434 PM CDT SAT SEP 20 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT...NORTHEASTERN RENVILLE...MEEKER AND MCLEOD COUNTIES UNTIL 500
PM CDT...

AT 432 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 14 MILES NORTHEAST OF LITCHFIELD TO HUTCHINSON TO 10
MILES EAST OF OLIVIA...AND MOVING SOUTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LAKE MARION REGIONAL PARK AROUND 445 PM CDT.
  GLENCOE AROUND 450 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE COKATO...BISCAY...SMITH
LAKE...STEWART...SILVER LAKE...BUFFALO LAKE...SUMTER...WINSTED...
HOWARD LAKE AND BROWNTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4528 9438 4528 9427 4515 9401 4472 9401
      4472 9463 4484 9489 4490 9482 4489 9476
      4493 9476 4503 9462 4532 9441
TIME...MOT...LOC 2134Z 303DEG 44KT 4523 9428 4488 9436
          4479 9477

HAIL...0.75IN
WIND...60MPH

$$

377 
WWUS53 KMPX 202146
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
446 PM CDT SAT SEP 20 2014

MNC085-093-129-171-202200-
/O.CON.KMPX.SV.W.0130.000000T0000Z-140920T2200Z/
MCLEOD MN-MEEKER MN-RENVILLE MN-WRIGHT MN-
446 PM CDT SAT SEP 20 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WRIGHT...NORTHEASTERN RENVILLE...SOUTHEASTERN MEEKER AND MCLEOD
COUNTIES UNTIL 500 PM CDT...

AT 443 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES SOUTHWEST OF MAPLE LAKE TO 6 MILES NORTHEAST
OF LAKE MARION REGIONAL PARK TO 15 MILES WEST OF LAKE MARION REGIONAL
PARK...AND MOVING SOUTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF MCLEOD...
NORTHEASTERN RENVILLE...SOUTHEASTERN MEEKER AND SOUTHWESTERN WRIGHT
COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...GLENCOE AIRPORT...
WINSTED...PLATO AND LESTER PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4515 9401 4472 9401 4472 9463 4479 9472
      4492 9447 4528 9427
TIME...MOT...LOC 2147Z 303DEG 44KT 4515 9412 4480 9420
          4471 9461

HAIL...0.75IN
WIND...60MPH

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 19, 10:58 PM CDT	Special Weather Statement	MPX	Faribault, Freeborn	47 min
Sep 20, 2:14 PM CDT	Special Weather Statement	MPX	Douglas, Stevens	61 min
Sep 20, 2:57 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Kandiyohi, Pope, Stearns, Stevens, Swift	48 min
Sep 20, 3:19 PM CDT	Special Weather Statement	MPX	Morrison, Todd	56 min
Sep 20, 3:36 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Renville, Stearns	39 min
Sep 20, 4:56 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Scott, Sibley, Wright	49 min
Sep 20, 4:57 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Redwood, Renville, Sibley	48 min
Sep 20, 5:06 PM CDT	Special Weather Statement	MPX	Anoka, Chisago, Isanti, Kanabec, Mille Lacs, Sherburne and 1 more	54 min
Sep 20, 5:08 PM CDT	Special Weather Statement	MPX	Waseca	37 min
Sep 20, 5:33 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Le Sueur, Rice, Scott	42 min
Sep 20, 5:41 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault, Freeborn, Le Sueur, Nicollet, Waseca and 1 more	49 min
Sep 20, 5:43 PM CDT	Severe Thunderstorm Warning	MPX	Steele, Waseca	32 min
Sep 20, 6:02 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	43 min
Sep 20, 6:13 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014 Every severe thunderstorm warning in 2014

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.