Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 189, NWS Twin Cities, MN

June 19, 20127 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 2012, 3:19 AM CDT for 7 counties in Minnesota. It was in force for 41 min. 8 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 19, 2012, 3:19 AM CDT (08:19 UTC)
Expired
Jun 19, 2012, 4:00 AM CDT
In force
41 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

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

The radar

The Minneapolis radar (KMPX), 52 km from the middle of the area, began a volume at 08:18 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

TimeReportWhereRemark
Jun 19, 3:21 AM CDTHAIL 0.88Winthrop, MNREPORTED BY POLICE DEPARTMENT
Jun 19, 3:30 AM CDTHAIL 1Gaylord, MNENOUGH HAIL TO MAKE THE GROUND WHITE
Jun 19, 3:45 AM CDTHAIL 0.75Le Center, MNPENNY SIZED HAIL AND WINDS APPROXIMATELY 30 MPH.
Jun 19, 3:52 AM CDTTSTM WND GST 664 Ene Henderson, MNMNDOT ROAD SENSOR
Jun 19, 3:55 AM CDTTSTM WND DMGBelle Plaine, MN50 TO 60 TREES DOWN. POWER LINES DOWN.
Jun 19, 3:55 AM CDTTSTM WND GST 83Belle Plaine, MN
Jun 19, 3:55 AM CDTHAIL 1Belle Plaine, MN
Jun 19, 3:55 AM CDTHAIL 1Le Sueur, MN

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.

IssuedProductOfficeLasted
Jun 18, 10:08 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 8.3 hours before the alert went out and 50 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2012-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2012-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
2661 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

166 
WUUS53 KMPX 190819
SVRMPX
MNC015-079-085-103-131-139-143-190900-
/O.NEW.KMPX.SV.W.0189.120619T0819Z-120619T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
319 AM CDT TUE JUN 19 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHWESTERN MCLEOD COUNTY IN CENTRAL MINNESOTA...
  NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA...
  EXTREME NORTHWESTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHWESTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
  SIBLEY COUNTY IN CENTRAL MINNESOTA...

* UNTIL 400 AM CDT

* AT 318 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BROWNTON
  TO LAFAYETTE TO COURTLAND...AND MOVING EAST AT 60 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  NEW ULM...
  GAYLORD...
  ST PETER...
  LE SUEUR...
  WINTHROP...
  LAFAYETTE...
  KLOSSNER...
  COURTLAND...
  NEW AUBURN...
  NICOLLET...
  NORSELAND...
  ARLINGTON...
  RUSH RIVER...
  KASOTA...

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 4426 9452 4447 9449 4471 9452 4465 9376
      4463 9376 4465 9375 4465 9372 4452 9352
      4423 9354
TIME...MOT...LOC 0819Z 277DEG 52KT 4468 9439 4448 9436
          4426 9439
WIND...HAIL 60MPH 1.25IN

$$
2 follow-up statements
704 
WWUS53 KMPX 190831
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
331 AM CDT TUE JUN 19 2012

MNC015-085-190846-
/O.CAN.KMPX.SV.W.0189.000000T0000Z-120619T0900Z/
BROWN MN-MCLEOD MN-
331 AM CDT TUE JUN 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MCLEOD AND EAST
CENTRAL BROWN COUNTIES IS CANCELLED...

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

LAT...LON 4425 9434 4447 9423 4468 9424 4465 9376
      4463 9376 4465 9375 4465 9372 4452 9352
      4423 9354
TIME...MOT...LOC 0831Z 277DEG 52KT 4466 9415 4446 9412
          4427 9420

$$

MNC079-103-139-143-190900-
/O.CON.KMPX.SV.W.0189.000000T0000Z-120619T0900Z/
LE SUEUR MN-NICOLLET MN-SCOTT MN-SIBLEY MN-
331 AM CDT TUE JUN 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
SIBLEY...SOUTHWESTERN SCOTT...EASTERN NICOLLET AND LE SUEUR COUNTIES
UNTIL 400 AM CDT...

AT 328 AM CDT...NATIONAL WEATHER SERVICE 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 NEW AUBURN TO 6 MILES WEST OF NORSELAND TO NICOLLET...
MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  ST PETER...LE SUEUR...ARLINGTON...NORSELAND...RUSH RIVER...
  KASOTA...HENDERSON...CLEVELAND...ST HENRY...BELLE PLAINE...LE
  CENTER...MONTGOMERY...NEW PRAGUE...KILKENNY AND NEW ROME.

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 4425 9434 4447 9423 4468 9424 4465 9376
      4463 9376 4465 9375 4465 9372 4452 9352
      4423 9354
TIME...MOT...LOC 0831Z 277DEG 52KT 4466 9415 4446 9412
          4427 9420
WIND...HAIL 60MPH 1.00IN

$$
178 
WWUS53 KMPX 190846
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
346 AM CDT TUE JUN 19 2012

MNC079-103-139-143-190900-
/O.CON.KMPX.SV.W.0189.000000T0000Z-120619T0900Z/
LE SUEUR MN-NICOLLET MN-SCOTT MN-SIBLEY MN-
346 AM CDT TUE JUN 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
SIBLEY...SOUTHWESTERN SCOTT...EASTERN NICOLLET AND LE SUEUR COUNTIES
UNTIL 400 AM CDT...

AT 341 AM CDT...NATIONAL WEATHER SERVICE 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 GREEN ISLE TO LE SUEUR TO KASOTA...MOVING EAST AT 60
MPH.

IN ADDITION...AT 330 AM QUARTER SIZE HAIL WAS REPORTED IN GAYLORD 
WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
  ST HENRY...BELLE PLAINE...LE CENTER...MONTGOMERY...NEW PRAGUE...
  KILKENNY AND HEIDELBERG.

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 4425 9412 4445 9402 4467 9405 4465 9377
      4463 9376 4465 9375 4465 9372 4452 9352
      4423 9354
TIME...MOT...LOC 0846Z 277DEG 52KT 4463 9385 4443 9382
          4424 9390
WIND...HAIL 60MPH 1.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 11:47 PM CDTSpecial Weather StatementMPXLac qui Parle, Yellow Medicine43 min
Jun 19, 1:11 AM CDTSpecial Weather StatementMPXKandiyohi49 min
Jun 19, 2:00 AM CDTSevere Thunderstorm WarningMPXRedwood60 min
Jun 19, 2:07 AM CDTSpecial Weather StatementMPXChippewa38 min
Jun 19, 2:20 AM CDTSevere Thunderstorm WarningMPXRedwood, Renville, Yellow Medicine40 min
Jun 19, 2:43 AM CDTSpecial Weather StatementMPXHennepin, Ramsey, Washington62 min
Jun 19, 2:44 AM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Redwood, Renville, Sibley46 min
Jun 19, 3:30 AM CDTSpecial Weather StatementMPXCarver, Dakota, Goodhue, Le Sueur, Rice, Scott45 min
Jun 19, 3:50 AM CDTSevere Thunderstorm WarningMPXCarver, Dakota, Hennepin, Ramsey, Scott, Wright40 min
Jun 19, 3:55 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Le Sueur, Rice, Scott50 min
Jun 19, 4:26 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Ramsey, Washington64 min
Jun 19, 4:38 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue52 min
Jun 19, 5:53 AM CDTSpecial Weather StatementMPXRamsey, Washington37 min
Jun 19, 6:11 AM CDTSevere Thunderstorm WarningMPXDakota, Ramsey, Washington34 min
Jun 19, 11:57 AM CDTRiver Flood WarningMPXWright9 days
Jun 19, 12:25 PM CDTRiver Flood WatchMPXTodd25 hr
Jun 19, 12:25 PM CDTRiver Flood WatchMPXHennepin, Wright10 hr
Jun 19, 6:44 PM CDTSpecial Weather StatementMPXDouglas46 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every 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.