Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 28, NWS Twin Cities, MN

May 19, 2007Waseca County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 19, 2007, 6:47 PM CDT for Waseca County, Minnesota. It was in force for 43 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, 6:47 PM CDT (23:47 UTC)
Expired
May 19, 2007, 7:30 PM CDT
In force
43 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Waseca County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.8 hours before the alert went out and 88 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 192347
SVRMPX
MNC161-200030-
/O.NEW.KMPX.SV.W.0028.070519T2347Z-070520T0030Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASECA COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 730 PM CDT

* AT 643 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL.  THIS STORM WAS LOCATED 6 MILES
  NORTH OF WASECA...AND MOVING EAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WASECA...
  NEW RICHLAND...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4420 9360 4386 9370 4385 9342 4420 9341

$$

MDB
2 follow-up statements
000 
WWUS53 KMPX 200009
SVSMPX

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

MNC161-200030-
/O.CON.KMPX.SV.W.0028.000000T0000Z-070520T0030Z/
WASECA MN-
709 PM CDT SAT MAY 19 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WASECA COUNTY...

AT 708 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL.  THIS STORM WAS
LOCATED NEAR WASECA...OR ABOUT 9 MILES SOUTH OF MORRISTOWN...AND
MOVING EAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE WASECA.

LAT...LON 4420 9360 4402 9358 4399 9342 4420 9341

$$

MDB
000 
WWUS53 KMPX 200027
SVSMPX

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

MNC161-200036-
/O.EXP.KMPX.SV.W.0028.000000T0000Z-070520T0030Z/
WASECA MN-
726 PM CDT SAT MAY 19 2007

...THE SEVERE THUNDERSTORM WARNING FOR WASECA COUNTY EXPIRES AT 730
PM CDT...

THUNDERSTORMS ARE WEAKENING BELOW SEVERE LIMITS. HOWEVER... 
THUNDERSTORMS WILL CONTINUE THROUGH 815 PM WITH HEAVY 
RAIN...DANGEROUS LIGHTNING...AND POSSIBLE SMALL HAIL.

LAT...LON 4420 9360 4402 9358 4399 9342 4420 9341

$$

MDB

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 6:03 PM CDTSevere Thunderstorm WarningMPXBlue Earth57 min
May 19, 6:19 PM CDTFlash Flood WarningMPXBlue Earth116 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.