Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 39, NWS Twin Cities, MN

June 12, 2013Blue Earth County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 12, 2013, 3:45 PM CDT for Blue Earth County, Minnesota. It was in force for 45 min. 3 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 12, 2013, 3:45 PM CDT (20:45 UTC)
Expired
Jun 12, 2013, 4:30 PM CDT
In force
45 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Blue Earth County, MN

The radar

The Minneapolis radar (KMPX), 108 km from the middle of the area, began a volume at 20:46 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 12, 3:55 PM CDTTSTM WND DMGS Vernon Center, MNTEN INCH TREES DOWN ON THE SOUTH SIDE OF VERNON CENTER.
Jun 12, 4:20 PM CDTTSTM WND DMGW Mapleton, MNFOUR INCH BRANCHES DOWN NEAR COUNTY ROAD 30 ON WEST SIDE OF TOWN.
Jun 12, 4:35 PM CDTHAIL 13 Wnw Minnesota Lake, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 107 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 12:00Z on 2013-06-12Temperature 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 12:00Z on 2013-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
912 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
52 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.

954 
WUUS53 KMPX 122045
SVRMPX
MNC013-122130-
/O.NEW.KMPX.SV.W.0039.130612T2045Z-130612T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
345 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 430 PM CDT

* AT 342 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES EAST OF
  MADELIA...AND MOVING EAST AT 20 MPH.

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

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  VERNON CENTER...AMBOY...GOOD THUNDER...MAPLETON AND PEMBERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4393 9433 4410 9427 4406 9377 4385 9377
      4385 9411
TIME...MOT...LOC 2045Z 285DEG 17KT 4399 9417

HAIL...1.00IN
WIND...60MPH

$$

JRB
3 follow-up statements
710 
WWUS53 KMPX 122102
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
402 PM CDT WED JUN 12 2013

MNC013-122130-
/O.CON.KMPX.SV.W.0039.000000T0000Z-130612T2130Z/
BLUE EARTH MN-
402 PM CDT WED JUN 12 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN BLUE
EARTH COUNTY UNTIL 430 PM CDT...

AT 400 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 14 MILES SOUTH OF
MANKATO...AND MOVING EAST AT 25 MPH.

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

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
         DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
GOOD THUNDER...MAPLETON AND PEMBERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4395 9421 4410 9427 4406 9377 4385 9377
      4385 9411
TIME...MOT...LOC 2101Z 286DEG 22KT 4397 9407

HAIL...1.00IN
WIND...60MPH

$$
686 
WWUS53 KMPX 122109
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
409 PM CDT WED JUN 12 2013

MNC013-122130-
/O.CON.KMPX.SV.W.0039.000000T0000Z-130612T2130Z/
BLUE EARTH MN-
409 PM CDT WED JUN 12 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN BLUE
EARTH COUNTY UNTIL 430 PM CDT...

AT 404 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 15 MILES SOUTH OF
MANKATO...AND MOVING EAST AT 35 MPH.

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

SOURCE...RADAR INDICATED. AT 355 PM...TEN INCH DIAMETER TREES WERE   
         BLOWN DOWN ON THE SOUTHSIDE OF VERNON CENTER. 

IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
         DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
MAPLETON AND PEMBERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4395 9421 4410 9427 4406 9377 4385 9377
      4385 9411
TIME...MOT...LOC 2107Z 287DEG 30KT 4395 9398

HAIL...1.00IN
WIND...60MPH

$$
335 
WWUS53 KMPX 122117
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
417 PM CDT WED JUN 12 2013

MNC013-122130-
/O.CON.KMPX.SV.W.0039.000000T0000Z-130612T2130Z/
BLUE EARTH MN-
417 PM CDT WED JUN 12 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BLUE EARTH COUNTY UNTIL 430 PM CDT...

AT 413 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 17 MILES SOUTH OF
MANKATO...AND MOVING EAST AT 35 MPH.

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

SOURCE...RADAR INDICATED. THIS STORM HAS A HISTORY OF WIND DAMAGE.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
PEMBERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4395 9409 4406 9408 4402 9377 4385 9377
      4385 9411
TIME...MOT...LOC 2117Z 287DEG 30KT 4392 9387

HAIL...1.00IN
WIND...60MPH

$$

JRB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 5:39 AM CDTSpecial Weather StatementMPXLac qui Parle66 min
Jun 12, 6:02 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine58 min
Jun 12, 8:07 AM CDTAreal Flood AdvisoryMPXCarver, Dakota, Hennepin, McLeod, Scott, Sibley3 hr
Jun 12, 8:20 AM CDTSpecial Weather StatementMPXRice40 min
Jun 12, 9:06 AM CDTSpecial Weather StatementMPXGoodhue39 min
Jun 12, 10:54 AM CDTAreal Flood AdvisoryMPXCarver, Scott, Sibley3 hr
Jun 12, 4:11 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn, Waseca49 min
Jun 12, 4:54 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn66 min
Jun 12, 5:58 PM CDTSevere Thunderstorm WarningMPXFreeborn32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2013Every severe thunderstorm warning in 2013

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.