Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 105, NWS Twin Cities, MN

May 9, 2004Le Sueur County, Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 9, 2004, 8:33 PM CDT for Le Sueur County, Rice County, Minnesota. It was in force for 57 min. 6 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: May 9, 2004, 8:33 PM CDT (01:33 UTC)
Expired: May 9, 2004, 9:30 PM CDT
In force: 57 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Le Sueur County, MN, Rice County, MN

What was reported inside it

Time	Report	Where
May 9, 8:33 PM CDT	HAIL 1	5 N Kilkenny, MN
May 9, 8:35 PM CDT	HAIL 0.75	Montgomery, MN
May 9, 8:41 PM CDT	HAIL 0.75	5 S Montgomery, MN
May 9, 9:00 PM CDT	HAIL 0.75	Dundas, MN
May 9, 9:05 PM CDT	HAIL 0.75	7 Nw Faribault, MN
May 9, 9:23 PM CDT	HAIL 0.75	4 E Faribault, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 9, 3:55 PM CDT	Tornado Watch	SPC	5 hr
May 9, 7:20 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.6 hours before the alert went out and 391 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: 903 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1798 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -12 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.

796 
WUUS53 KMPX 100133
SVRMPX
MNC079-131-100230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
830 PM CDT SUN MAY 9 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 930 PM CDT

* AT 828 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS
  NEAR MONTGOMERY...OR ABOUT 20 MILES NORTHWEST OF FARIBAULT. THE 
  STORM WAS MOVING EAST AT 25 MPH...WHILE OTHER STORMS WERE 
  INTENSIFYING SOUTH OF LE CENTER...AND MAY ALSO BECOME SEVERE.

* LOCATIONS IMPACTED INCLUDE...
  FARIBAULT.
  MONTGOMERY.
  KILKENNY.
  SHIELDSVILLE.

REMAIN IN SHELTER AS DAMAGING WINDS AND LARGE HAIL ARE POSSIBLE.

LAT...LON 4454 9362 4426 9381 4421 9306 4447 9309

$$
TDK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:13 PM CDT	Severe Thunderstorm Warning	MPX	Scott	47 min
May 9, 7:35 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Nicollet, Sibley	55 min
May 9, 8:22 PM CDT	Severe Thunderstorm Warning	MPX	Brown	53 min
May 9, 9:01 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Nicollet	44 min
May 9, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	65 min
May 9, 9:34 PM CDT	Severe Thunderstorm Warning	MPX	Rice	41 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2004 Every severe thunderstorm warning in 2004

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.