Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 219, NWS Twin Cities, MN

July 17, 2005Freeborn County, Steele County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2005, 9:41 PM CDT for Freeborn County, Steele County, Minnesota. It was in force for 34 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
Jul 17, 2005, 9:41 PM CDT (02:41 UTC)
Expired
Jul 17, 2005, 10:15 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Freeborn County, MN, Steele County, MN

The radar

The Minneapolis radar (KMPX), 107 km from the middle of the area, began a volume at 02:44 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, 2.7 hours before the alert went out and 108 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 2005-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2721 joules per kilogram.LCLLFCEL10008507005003002001001 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 2005-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
2721 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 180242
SVRMPX
MNC047-147-180330-
/O.NEW.KMPX.SV.W.0219.050718T0241Z-050718T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES-CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE DULUTH MN
941 PM CDT SUN JUL 17 2005

THE NATIONAL WEATHER SERVICE IN TWIN CITIES-CHANHASSEN MN HAS ISSUED
A

* SEVERE THUNDERSTORM WARNING FOR...
  STEELE COUNTY IN SOUTH CENTRAL MINNESOTA
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 1030 PM CDT

* AT 940 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM 6 MILES EAST OF MEDFORD TO GENEVA TO 6 MILES
  SOUTH OF CONGER...OR ALONG A LINE EXTENDING FROM 50 MILES NORTH OF
  NORTHWOOD TO 28 MILES NORTH OF NORTHWOOD TO 8 MILES NORTH OF LAKE
  MILLS...AND MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  TWIN LAKES BY 950 PM CDT
  HOLLANDALE BY 955 PM CDT
  HAYWARD BY 1005 PM CDT
  GLENVILLE BY 1010 PM CDT
  MYRTLE BY 1025 PM CDT

LAT...LON 4417 9337 4384 9340 4354 9361 4352 9308
      4418 9307

$$

BERDES
1 follow-up statement
000 
WWUS53 KMPX 180315
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES-CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE DULUTH MN
1014 PM CDT SUN JUL 17 2005

MNC047-147-180324-
/O.CAN.KMPX.SV.W.0219.000000T0000Z-050718T0330Z/
STEELE MN-FREEBORN MN-
1014 PM CDT SUN JUL 17 2005

...THE SEVERE THUNDERSTORM WARNING FOR FREEBORN AND STEELE COUNTIES
IS CANCELLED...

THE THUNDERSTORM THAT PROMPTED THE WARNING IS NO LONGER SEVERE. 
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4417 9337 4384 9340 4354 9361 4352 9308
      4418 9307

$$

KFM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:47 PM CDTSevere Thunderstorm WarningMPXSteele, Waseca58 min
Jul 17, 9:28 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Washington34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.