Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 27, NWS Twin Cities, MN

May 19, 2007Blue Earth County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 19, 2007, 6:03 PM CDT for Blue Earth County, Minnesota. It was in force for 57 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
May 19, 2007, 6:03 PM CDT (23:03 UTC)
Expired
May 19, 2007, 7:00 PM CDT
In force
57 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Blue Earth County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 104 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 2007-05-19Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2007-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 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
1356 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
176 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 192303
SVRMPX
MNC013-200000-
/O.NEW.KMPX.SV.W.0027.070519T2303Z-070520T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
603 PM CDT SAT MAY 19 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 700 PM CDT

* AT 600 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL.  THIS STORM WAS LOCATED NEAR
  MAPLETON...OR ABOUT 18 MILES SOUTH OF MANKATO...AND MOVING EAST 
AT   15 MPH. THIS STORM HAS PRODUCED NICKEL SIZE HAIL NEAR VERNON 
CENTER.

* LOCATIONS IMPACTED INCLUDE...
  PEMBERTON...

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 4400 9409 4386 9408 4386 9378 4403 9378

$$

MB
2 follow-up statements
000 
WWUS53 KMPX 192312
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
610 PM CDT SAT MAY 19 2007

MNC013-200000-
/O.CON.KMPX.SV.W.0027.000000T0000Z-070520T0000Z/
BLUE EARTH MN-
610 PM CDT SAT MAY 19 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR BLUE EARTH COUNTY...

AT 609 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL.  THIS STORM WAS
LOCATED NEAR MAPLETON...OR ABOUT OVER MAPLETON...AND MOVING EAST AT 
15 MPH. AN ADDITIONAL STORM WAS ALSO FOUND JUST SOUTHWEST OF VERNON 
CENTER AND NORTHWEST OF AMBOY. LARGE HAIL IS ALSO POSSIBLE WITH THIS 
STORM AS IT MOVES EAST.

OTHER LOCATIONS IN THE WARNING INCLUDE VERNON CENTER...PEMBERTON...
MAPLETON...GOOD THUNDER AND AMBOY.

LAT...LON 4400 9423 4386 9423 4386 9378 4403 9378

$$

MDB
000 
WWUS53 KMPX 200000
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
659 PM CDT SAT MAY 19 2007

MNC013-200009-
/O.EXP.KMPX.SV.W.0027.000000T0000Z-070520T0000Z/
BLUE EARTH MN-
659 PM CDT SAT MAY 19 2007

...THE SEVERE THUNDERSTORM WARNING FOR BLUE EARTH COUNTY EXPIRES AT
700 PM CDT...

SEVERE THUNDERSTORMS HAVE WEAKENED BELOW SEVERE LIMITS. HEAVY 
RAINFALL WILL CONTINUE ACROSS SOUTHERN BLUE EARTH COUNTY ALONG WITH 
DANGEROUS LIGHTNING...THROUGH 8 PM.

LAT...LON 4400 9423 4386 9423 4386 9378 4403 9378

$$

MDB

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 6:19 PM CDTFlash Flood WarningMPXBlue Earth116 min
May 19, 6:47 PM CDTSevere Thunderstorm WarningMPXWaseca43 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007

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.