Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 178, NWS Twin Cities, MN

June 17, 20125 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2012, 11:22 PM CDT for 5 counties in Minnesota. It was in force for 38 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 17, 2012, 11:22 PM CDT (04:22 UTC)
Expired: Jun 18, 2012, 12:00 AM CDT
In force: 38 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Le Sueur County, MN, Nicollet County, MN, Rice County, MN, Scott County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 44 km from the middle of the area, began a volume at 04:25 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 17, 11:40 PM CDT	TSTM WND GST 58	9 S Prior Lake, MN	MEASURED BY ANEMOMETER AT INTERSECTION OF COUNTY ROAD 8 AND 27.
Jun 18, 12:03 AM CDT	TSTM WND GST 60	1 W New Market, MN	ESTIMATED 60 MPH WIND GUST AT INTERSECTION OF COUNTY RD 2 AND 27.

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 17, 7:57 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.4 hours before the alert went out and 44 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1837 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 492 m²/s²
0-3 km storm-relative helicity: 747 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

141 
WUUS53 KMPX 180422
SVRMPX
MNC079-103-131-139-143-180500-
/O.NEW.KMPX.SV.W.0178.120618T0422Z-120618T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1122 PM CDT SUN JUN 17 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHEASTERN NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
  WESTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
  EASTERN SIBLEY COUNTY IN CENTRAL MINNESOTA...

* UNTIL MIDNIGHT CDT

* AT 1120 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM HAMBURG
  TO HENDERSON TO 7 MILES EAST OF LAFAYETTE...AND MOVING SOUTHEAST AT
  40 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  LE SUEUR...
  ST PETER...
  GREEN ISLE...
  RUSH RIVER...
  HENDERSON...
  NORSELAND...
  BELLE PLAINE...
  JORDAN...
  ST HENRY...
  LE CENTER...
  KASOTA...
  NEW PRAGUE...
  CLEVELAND...
  MONTGOMERY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4424 9377 4424 9397 4442 9445 4455 9406
      4472 9400 4472 9389 4468 9388 4468 9377
      4463 9376 4470 9366 4456 9327 4447 9329
      4447 9327 4428 9334 4419 9360 4419 9376
TIME...MOT...LOC 0423Z 297DEG 34KT 4468 9388 4451 9394
          4441 9422
WIND...HAIL 60MPH 1.00IN

$$

JRB

2 follow-up statements

343 
WWUS53 KMPX 180433
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1133 PM CDT SUN JUN 17 2012

MNC079-103-131-139-143-180500-
/O.CON.KMPX.SV.W.0178.000000T0000Z-120618T0500Z/
LE SUEUR MN-NICOLLET MN-RICE MN-SCOTT MN-SIBLEY MN-
1133 PM CDT SUN JUN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
SIBLEY...SOUTHERN SCOTT...WESTERN RICE...NORTHEASTERN NICOLLET AND LE
SUEUR COUNTIES UNTIL MIDNIGHT CDT...

AT 1130 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BELLE PLAINE TO LE SUEUR TO 6 MILES SOUTHWEST OF
NORSELAND...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  ST PETER...BELLE PLAINE...JORDAN...ST HENRY...LE CENTER...KASOTA...
  CLEVELAND...NEW PRAGUE...MONTGOMERY...VESELI...KILKENNY...
  LONSDALE...WEBSTER...ELYSIAN AND NEW MARKET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4424 9377 4424 9397 4437 9429 4450 9397
      4468 9388 4468 9377 4463 9376 4470 9366
      4456 9327 4447 9329 4447 9327 4428 9334
      4419 9360 4419 9376
TIME...MOT...LOC 0433Z 297DEG 34KT 4463 9376 4446 9382
          4437 9410
WIND...HAIL 60MPH 1.00IN

$$

JRB

373 
WWUS53 KMPX 180444
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1144 PM CDT SUN JUN 17 2012

MNC139-143-180459-
/O.CAN.KMPX.SV.W.0178.000000T0000Z-120618T0500Z/
SCOTT MN-SIBLEY MN-
1144 PM CDT SUN JUN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SIBLEY AND
SOUTHERN SCOTT COUNTIES IS CANCELLED...

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

LAT...LON 4424 9377 4424 9397 4433 9419 4445 9381
      4452 9372 4452 9329 4429 9338 4420 9369
      4419 9376
TIME...MOT...LOC 0444Z 297DEG 34KT 4458 9363 4441 9369
          4432 9397

$$

MNC079-103-131-180500-
/O.CON.KMPX.SV.W.0178.000000T0000Z-120618T0500Z/
LE SUEUR MN-NICOLLET MN-RICE MN-
1144 PM CDT SUN JUN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
RICE...EAST CENTRAL NICOLLET AND LE SUEUR COUNTIES UNTIL MIDNIGHT
CDT...

AT 1139 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BELLE PLAINE TO LE CENTER TO ST PETER...MOVING
SOUTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  LE CENTER...KASOTA...CLEVELAND...MONTGOMERY...VESELI...KILKENNY...
  LONSDALE...ELYSIAN...HEIDELBERG AND GREENLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4424 9377 4424 9397 4433 9419 4445 9381
      4452 9372 4452 9329 4429 9338 4420 9369
      4419 9376
TIME...MOT...LOC 0444Z 297DEG 34KT 4458 9363 4441 9369
          4432 9397
WIND...HAIL 60MPH 1.00IN


$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:06 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Swift	39 min
Jun 17, 7:12 PM CDT	Tornado Warning	MPX	Chippewa, Swift	48 min
Jun 17, 7:15 PM CDT	Tornado Warning	MPX	Pope, Swift	26 min
Jun 17, 7:21 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Pope, Stevens, Swift	39 min
Jun 17, 7:53 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Pope, Stevens, Swift	67 min
Jun 17, 7:58 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Swift	47 min
Jun 17, 8:06 PM CDT	Tornado Warning	MPX	Chippewa, Kandiyohi, Swift	24 min
Jun 17, 8:25 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle, Swift	35 min
Jun 17, 8:33 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	42 min
Jun 17, 8:36 PM CDT	Areal Flood Advisory	MPX	Chippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Stearns and 2 more	3 hr
Jun 17, 8:45 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Swift, Yellow Medicine	45 min
Jun 17, 8:56 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Sherburne, Stearns, Wright	49 min
Jun 17, 9:06 PM CDT	Tornado Warning	MPX	Kandiyohi, McLeod, Meeker	24 min
Jun 17, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Renville	65 min
Jun 17, 9:25 PM CDT	Tornado Warning	MPX	Carver, McLeod, Meeker, Wright	35 min
Jun 17, 9:28 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	47 min
Jun 17, 9:45 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Meeker, Sherburne, Stearns, Wright	45 min
Jun 17, 9:50 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Meeker, Sibley, Wright	40 min
Jun 17, 10:08 PM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Dakota, Hennepin, McLeod, Meeker and 6 more	3 hr
Jun 17, 10:24 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Le Sueur, McLeod, Scott, Sibley and 1 more	51 min
Jun 17, 10:24 PM CDT	Tornado Warning	MPX	Renville	36 min
Jun 17, 10:30 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	30 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville, Sibley	49 min
Jun 17, 10:50 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	40 min
Jun 17, 10:57 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	33 min
Jun 17, 11:10 PM CDT	Special Weather Statement	MPX	Dakota, Ramsey, Scott	50 min
Jun 17, 11:28 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Scott, Washington	32 min
Jun 17, 11:32 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	43 min
Jun 17, 11:44 PM CDT	Flash Flood Warning	MPX	Dakota, Goodhue, Rice	6 hr
Jun 17, 11:50 PM CDT	Tornado Warning	MPX	Le Sueur	25 min
Jun 17, 11:53 PM CDT	Special Weather Statement	MPX	Meeker	52 min
Jun 17, 11:58 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice	47 min
Jun 18, 12:20 AM CDT	Special Weather Statement	MPX	McLeod	40 min
Jun 18, 12:25 AM CDT	Special Weather Statement	MPX	Scott	50 min
Jun 18, 12:26 AM CDT	Special Weather Statement	MPX	Goodhue	49 min
Jun 18, 12:45 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	45 min
Jun 18, 12:46 AM CDT	Flash Flood Warning	MPX	Dakota, Le Sueur, Rice, Scott	4 hr
Jun 18, 1:05 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	40 min
Jun 18, 1:27 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice	33 min
Jun 18, 1:30 AM CDT	Special Weather Statement	MPX	Scott	30 min
Jun 18, 5:33 AM CDT	Areal Flood Warning	MPX	Dakota, Goodhue, Rice	6 hr
Jun 18, 11:17 AM CDT	River Flood Warning	MPX	Carver	10 days
Jun 18, 11:33 AM CDT	Areal Flood Warning	MPX	Dakota, Goodhue	18 hr
Jun 18, 4:31 PM CDT	Flash Flood Watch	MPX	Anoka, Benton, Carver, Chippewa, Chisago, Dakota and 24 more	56 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.