Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 76, NWS Twin Cities, MN

May 8, 2004Goodhue County, Steele County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2004, 1:21 AM CDT for Goodhue County, Steele County, Minnesota. It was in force for 39 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 8, 2004, 1:21 AM CDT (06:21 UTC)
Expired: May 8, 2004, 2:00 AM CDT
In force: 39 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Goodhue County, MN, Steele County, MN

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 06:23 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 7, 10:20 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 6.4 hours before the alert went out and 91 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2481 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 375 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.

884 
WUUS53 KMPX 080621
SVRMPX
MNC049-147-080700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
121 AM CDT SAT MAY 8 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 200 AM CDT

* AT 113 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 12 MILES
  SOUTHWEST OF KENYON...OR ABOUT OVER OWATONNA...AND MOVING EAST AT
  40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BELLECHESTER.
  GOODHUE.
  KENYON.
  PINE ISLAND.
  WANAMINGO.
  ZUMBROTA.

LAT...LON 4416 9316 4420 9304 4429 9303 4449 9230
          4446 9226 4445 9243 4437 9244 4437 9255
          4421 9256 4418 9304 4409 9306 4408 9312

$$

MARGRAF

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 12:16 AM CDT	Severe Thunderstorm Warning	MPX	Martin, Watonwan	44 min
May 8, 12:36 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Waseca	39 min
May 8, 1:03 AM CDT	Severe Thunderstorm Warning	MPX	Faribault	42 min
May 8, 1:38 AM CDT	Severe Thunderstorm Warning	MPX	Martin	37 min
May 8, 1:38 AM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn	52 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.