Alert archive / Minnesota / Tornado Warnings in 2009

Tornado Warning 12, NWS Twin Cities, MN

June 21, 2009Blue Earth County, Faribault County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 21, 2009, 6:55 PM CDT for Blue Earth County, Faribault County, Minnesota. It was in force for 35 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 21, 2009, 6:55 PM CDT (23:55 UTC)
Expired
Jun 21, 2009, 7:30 PM CDT
In force
35 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Blue Earth County, MN, Faribault County, MN

The radar

The Minneapolis radar (KMPX), 122 km from the middle of the area, began a volume at 23:57 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 21, 7:04 PM CDTTORNADO1 Sw Easton, MN
Jun 21, 7:30 PM CDTTORNADO2 N Easton, MNTOUCHED DOWN SOME DEBRIS.

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 21, 3:17 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.9 hours before the alert went out and 122 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 2009-06-21Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2009-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
1779 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
37 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.

000 
WFUS53 KMPX 212355
TORMPX
MNC013-043-220030-
/O.NEW.KMPX.TO.W.0012.090621T2355Z-090622T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
655 PM CDT SUN JUN 21 2009

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  NORTHERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 654 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 4
  MILES SOUTHEAST OF DELAVAN. RADAR SHOWED THE SEVERE STORM MOVING
  NORTHEAST AT 15 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  EASTON...
  BRUSH CREEK...
  WELLS...
  MINNESOTA LAKE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTH CENTRAL MINNESOTA.

&&

LAT...LON 4392 9387 4373 9366 4361 9402 4372 9422
TIME...MOT...LOC 2355Z 235DEG 13KT 4374 9396

$$
3 follow-up statements
000 
WWUS53 KMPX 220002
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
702 PM CDT SUN JUN 21 2009

MNC013-043-220030-
/O.CON.KMPX.TO.W.0012.000000T0000Z-090622T0030Z/
BLUE EARTH MN-FARIBAULT MN-
702 PM CDT SUN JUN 21 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHERN
FARIBAULT AND SOUTHEASTERN BLUE EARTH COUNTIES...

AT 702 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION.  THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 3 MILES
SOUTHWEST OF EASTON...OR ABOUT 4 MILES SOUTHEAST OF DELAVAN...AND
MOVING NORTHEAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE...EASTON...EASTON...BRUSH
CREEK...MINNESOTA LAKE AND WELLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTH CENTRAL MINNESOTA.

&&

LAT...LON 4392 9387 4373 9366 4361 9402 4372 9422
TIME...MOT...LOC 0002Z 235DEG 11KT 4374 9396

$$

JLT
000 
WWUS53 KMPX 220006
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
706 PM CDT SUN JUN 21 2009

MNC013-043-220030-
/O.CON.KMPX.TO.W.0012.000000T0000Z-090622T0030Z/
BLUE EARTH MN-FARIBAULT MN-
706 PM CDT SUN JUN 21 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHEASTERN FARIBAULT AND SOUTHEASTERN BLUE EARTH COUNTIES...

AT 704 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO ONE MILE 
SOUTHWEST OF EASTON. 

AT 706 PM CDT... THE TORNADIC SEVERE THUNDERSTORM WAS LOCATED 1 MILES
WEST OF EASTON...OR ABOUT 4 MILES EAST OF DELAVAN...AND MOVING 
NORTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE...EASTON...MINNESOTA LAKE AND
WELLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTH CENTRAL MINNESOTA.

&&

LAT...LON 4365 9398 4381 9406 4392 9387 4373 9366
TIME...MOT...LOC 0005Z 235DEG 11KT 4375 9395

$$

JLT
000 
WWUS53 KMPX 220018
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
718 PM CDT SUN JUN 21 2009

MNC013-043-220030-
/O.CON.KMPX.TO.W.0012.000000T0000Z-090622T0030Z/
BLUE EARTH MN-FARIBAULT MN-
718 PM CDT SUN JUN 21 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHEASTERN FARIBAULT AND SOUTHEASTERN BLUE EARTH COUNTIES...

AT 718 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION.  THE MOST DANGEROUS PART OF THE STORM WAS LOCATED NEAR
EASTON...OR ABOUT 5 MILES EAST OF DELAVAN...AND MOVING NORTHEAST AT 
10 MPH. A TORNADO WAS REPORTED WITH THIS STORM SOUTHWEST OF EASTON 
AT 704 PM. 

OTHER LOCATIONS IN THE WARNING INCLUDE...MINNESOTA LAKE AND WELLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTH CENTRAL MINNESOTA.

&&

LAT...LON 4370 9393 4385 9400 4392 9387 4373 9366
TIME...MOT...LOC 0017Z 235DEG 10KT 4378 9393

$$

JLT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 6:48 PM CDTSpecial Weather StatementMPXFaribault42 min
Jun 21, 6:51 PM CDTSpecial Weather StatementMPXRedwood39 min

Nearby

Tornado Warnings in Minnesota, 2009Every tornado warning in 2009Tornadoes in 2009

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.