Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 252, NWS Twin Cities, MN

August 3, 2005Le Sueur County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2005, 10:40 PM CDT for Le Sueur County, Minnesota. It was in force for 65 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
Aug 3, 2005, 10:40 PM CDT (03:40 UTC)
Expired
Aug 3, 2005, 11:45 PM CDT
In force
65 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Le Sueur County, MN

The radar

The Minneapolis radar (KMPX), 52 km from the middle of the area, began a volume at 03:42 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
Aug 3, 11:00 PM CDTTSTM WND DMGLe Center, MNPOWER LINES DOWN
Aug 3, 11:15 PM CDTTSTM WND DMGMontgomery, MNONE TO ONE AND ONE HALF INCH TREE LIMBS SEVERED.

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 00:00Z, 3.7 hours before the alert went out and 51 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 00:00Z on 2005-08-04Temperature 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 00:00Z on 2005-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
1345 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KMPX 040341
SVRMPX
MNC079-040445-
/O.NEW.KMPX.SV.W.0252.050804T0340Z-050804T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1040 PM CDT WED AUG 3 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 1145 PM CDT

* AT 1037 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 10 MILES
  NORTHWEST OF LE CENTER TO 12 MILES SOUTHWEST OF LE CENTER...AND    
  MOVING EAST NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LE CENTER...
  LE SUEUR...
  CLEVELAND...

THESE STORMS HAVE A HISTORY OF DOWNING TREES AND POWER LINES IN 
NICOLLET COUNTY. TAKE COVER IF YOU ARE IN THE PATH OF THESE STORMS

LAT...LON 4448 9389 4426 9398 4428 9355 4453 9357

$$

KAT
1 follow-up statement
000 
WWUS53 KMPX 040442
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1141 PM CDT WED AUG 3 2005

MNC079-040456-
/O.EXP.KMPX.SV.W.0252.000000T0000Z-050804T0445Z/
LE SUEUR MN-
1141 PM CDT WED AUG 3 2005

...THE SEVERE THUNDERSTORM WARNING FOR LE SUEUR COUNTY WILL EXPIRE AT
1145 PM CDT...

THE STORM THAT PROMPTED THE WARNING FOR LE SUEUR COUNTY HAS MOVED 
NORTH AND EAST OF THE AREA. THEREFORE...THE SEVERE THUNDERSTORM 
WARNING WILL BE ALLOWED TO EXPIRE. PRIOR TO MOVING OUT OF THE 
COUNTY...POWER POLES WERE DOWNED IN LE CENTER AT 1100 PM.

LAT...LON 4448 9389 4426 9398 4428 9355 4453 9357

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:25 PM CDTSevere Thunderstorm WarningMPXRedwood, Yellow Medicine65 min
Aug 3, 9:26 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Redwood, Renville, Sibley64 min
Aug 3, 9:36 PM CDTSevere Thunderstorm WarningMPXWatonwan54 min
Aug 3, 10:15 PM CDTSevere Thunderstorm WarningMPXBlue Earth60 min
Aug 3, 10:24 PM CDTSevere Thunderstorm WarningMPXNicollet, Sibley66 min
Aug 3, 10:43 PM CDTSevere Thunderstorm WarningMPXFaribault, Martin38 min
Aug 3, 10:59 PM CDTSevere Thunderstorm WarningMPXScott61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005Every severe thunderstorm warning in 2005

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.