Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 121, NWS Twin Cities, MN

June 12, 20084 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 12, 2008, 10:51 PM CDT for 4 counties in Minnesota. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 12, 2008, 10:51 PM CDT (03:51 UTC)
Expired: Jun 12, 2008, 11:15 PM CDT
In force: 24 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Benton County, MN, Mille Lacs County, MN, Morrison County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 128 km from the middle of the area, began a volume at 03:52 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.9 hours before the alert went out and 127 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: 84 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 2006 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: -3 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 
WUUS53 KMPX 130351
SVRMPX
MNC009-095-097-141-130415-
/O.NEW.KMPX.SV.W.0121.080613T0351Z-080613T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1051 PM CDT THU JUN 12 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN MORRISON COUNTY IN CENTRAL MINNESOTA...
  MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
  SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  EASTERN BENTON COUNTY IN CENTRAL MINNESOTA...

* UNTIL 1115 PM CDT

* AT 1048 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
  STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES NORTHWEST   
  OF LASTRUP TO 4 MILES NORTHWEST OF RUM RIVER TO 6 MILES SOUTHEAST   
  OF SANTIAGO...AND MOVING NORTHEAST AT 55 MPH.  THESE STORMS HAVE A
  HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE.

* SOME LOCATIONS INCLUDE...
  FORESTON...
  ZIMMERMAN...
  HILLMAN...
  MILACA...
  PRINCETON...
  ONAMIA...
  VINELAND...
  WAHKON...
  ISLE...

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

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

LAT...LON 4622 9344 4598 9347 4598 9351 4566 9350
      4531 9354 4537 9390 4611 9427 4617 9398
      4617 9384 4621 9382 4626 9363 4625 9352
TIME...MOT...LOC 0351Z 240DEG 48KT 4620 9415 4586 9382
          4548 9371

$$

LS

1 follow-up statement

000 
WWUS53 KMPX 130405
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1105 PM CDT THU JUN 12 2008

MNC009-095-097-141-130415-
/O.CON.KMPX.SV.W.0121.000000T0000Z-080613T0415Z/
MORRISON MN-MILLE LACS MN-SHERBURNE MN-BENTON MN-
1105 PM CDT THU JUN 12 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR EASTERN BENTON...EASTERN SHERBURNE...MILLE LACS AND EASTERN
MORRISON COUNTIES...

AT 1101 PM CDT...RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.  THE MOST DANGEROUS PART OF THE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 11 MILES NORTH OF HARDING TO 10 MILES SOUTH OF ONAMIA
TO 3 MILES SOUTHEAST OF PRINCETON...AND MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SANTIAGO...RUM RIVER...
MORRILL...LITTLE ROCK...GLENDORADO...BAYVIEW...ZIMMERMAN...WAHKON...
VINELAND AND RONNEBY.

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

LAT...LON 4622 9344 4599 9348 4598 9351 4562 9350
      4531 9354 4536 9380 4611 9427 4617 9398
      4617 9384 4621 9382 4626 9363
TIME...MOT...LOC 0405Z 240DEG 48KT 4629 9392 4595 9359
          4557 9348

$$

LS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 7:14 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	32 min
Jun 12, 8:16 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	44 min
Jun 12, 8:52 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Renville, Swift, Yellow Medicine	38 min
Jun 12, 9:26 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Pope, Stearns, Swift	49 min
Jun 12, 9:47 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Douglas, Kandiyohi, McLeod, Meeker, Morrison and 6 more	58 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.