Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 81, NWS Twin Cities, MN

May 8, 2002Dakota County, Goodhue County, Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2002, 3:42 PM CDT for Dakota County, Goodhue County, Rice County, Minnesota. It was in force for 48 min. 4 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 8, 2002, 3:42 PM CDT (20:42 UTC)
Expired: May 8, 2002, 4:30 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Dakota County, MN, Goodhue County, MN, Rice County, MN

The radar

The Minneapolis radar (KMPX), 56 km from the middle of the area, began a volume at 20:43 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

Time	Report	Where
May 8, 3:43 PM CDT	Hail 0.88	Castle Rock, MN
May 8, 3:58 PM CDT	Hail 0.75	Northfield, MN
May 8, 4:08 PM CDT	Hail 1.25	Nerstrand, MN
May 8, 4:10 PM CDT	Hail 1	Stanton, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.7 hours before the alert went out and 57 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: 565 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 393 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 082042
SVRMSP
MNC037-049-131-082130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
342 PM CDT WED MAY 8 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAKOTA COUNTY IN EAST CENTRAL MINNESOTA
  GOODHUE COUNTY IN SOUTHEAST MINNESOTA
  RICE COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 430 PM CDT

* AT 342 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL 3 MILES NORTH OF FARIBAULT...MOVING NORTHEAST AT 45 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  CANNON FALLS.
  DUNDAS.
  FARIBAULT.
  HAMPTON.
  NORTHFIELD.
  RANDOLPH.
  VERMILLION.

THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM
WINDOWS.

LAT...LON 4436 9342 4423 9324 4453 9275 4471 9299

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 11:50 AM CDT	Severe Thunderstorm Warning	MPX	Redwood	55 min
May 8, 12:07 PM CDT	Flash Flood Warning	MPX	Brown, Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine	3 hr
May 8, 12:17 PM CDT	Flash Flood Warning	MPX	Brown, Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine	3 hr
May 8, 2:15 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	45 min
May 8, 2:48 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	42 min
May 8, 2:54 PM CDT	Severe Thunderstorm Warning	MPX	Scott	36 min
May 8, 2:59 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	31 min
May 8, 3:04 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	41 min
May 8, 4:28 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 min
May 8, 5:16 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	29 min
May 8, 5:24 PM CDT	Tornado Warning	MPX	Goodhue	36 min
May 8, 5:45 PM CDT	Severe Thunderstorm Warning	MPX	Carver	30 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.