Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 91, NWS Twin Cities, MN

May 28, 2002Carver County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 28, 2002, 1:13 PM CDT for Carver County, Sibley County, Minnesota. It was in force for 47 min. 1 report 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 28, 2002, 1:13 PM CDT (18:13 UTC)
Expired: May 28, 2002, 2:00 PM CDT
In force: 47 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Carver County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 36 km from the middle of the area, began a volume at 18:14 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	Remark
May 28, 1:30 PM CDT	Hail 0.75	Green Isle, 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, 6.2 hours before the alert went out and 34 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: 60 J/kg
Mixed-layer CIN: -193 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 69 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 281813
SVRMSP
MNC019-143-281900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
114 PM CDT TUE MAY 28 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CARVER COUNTY IN EAST CENTRAL MINNESOTA
  EASTERN SIBLEY COUNTY IN CENTRAL MINNESOTA

* UNTIL 200 PM CDT

* AT 112 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL NEAR ARLINGTON...OR ABOUT 20 MILES SOUTHWEST OF CHASKA. 
  IT WAS MOVING NORTHEAST AT 20 MPH. ONE INCH HAIL IS POSSIBLE.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  COLOGNE.
  GREEN ISLE.
  HAMBURG.
  NORWOOD/YOUNG AMERICA.
  WACONIA.

THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 4463 9412 4449 9403 4482 9369 4494 9390
          4474 9403

&

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 2:05 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Watonwan	25 min
May 28, 1:45 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Waseca	45 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.