Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 125, NWS Twin Cities, MN

June 19, 2002McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 19, 2002, 11:35 PM CDT for McLeod County, Minnesota. It was in force for 40 min. 3 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: Jun 19, 2002, 11:35 PM CDT (04:35 UTC)
Expired: Jun 20, 2002, 12:15 AM CDT
In force: 40 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County McLeod County, MN

The radar

The Minneapolis radar (KMPX), 49 km from the middle of the area, began a volume at 04:37 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
Jun 19, 11:36 PM CDT	Hail 0.75	Glencoe, MN
Jun 19, 11:40 PM CDT	Hail 0.75	Plato, MN
Jun 19, 11:53 PM CDT	Hail 0.75	Lester Prairie, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 19, 8:00 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.6 hours before the alert went out and 46 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: 2056 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 1172 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 340 m²/s²
0-3 km storm-relative helicity: 424 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 200435
SVRMSP
MNC085-200515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1135 PM CDT WED JUN 19 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCLEOD COUNTY IN CENTRAL MINNESOTA

* UNTIL 1215 AM CDT

* AT 1135 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL 4 MILES SOUTHWEST OF GLENCOE...OR ABOUT 13 MILES SOUTHEAST OF
  HUTCHINSON...MOVING NORTHEAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  BISCAY.
  GLENCOE.
  LESTER PRAIRIE.
  PLATO.

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

LAT...LON 4480 9433 4473 9423 4473 9402 4498 9402

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 7:02 PM CDT	Tornado Warning	MPX	Swift	28 min
Jun 19, 7:07 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	23 min
Jun 19, 7:15 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	45 min
Jun 19, 7:18 PM CDT	Severe Thunderstorm Warning	MPX	Pope	42 min
Jun 19, 7:59 PM CDT	Tornado Warning	MPX	Stearns	31 min
Jun 19, 8:31 PM CDT	Tornado Warning	MPX	Stearns	29 min
Jun 19, 8:34 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	56 min
Jun 19, 9:08 PM CDT	Tornado Warning	MPX	Benton, Stearns	37 min
Jun 19, 10:55 PM CDT	Severe Thunderstorm Warning	MPX	Wright	35 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.