Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 78, NWS Twin Cities, MN

May 8, 2002Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2002, 2:54 PM CDT for Scott County, Minnesota. It was in force for 36 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, 2002, 2:54 PM CDT (19:54 UTC)
Expired
May 8, 2002, 3:30 PM CDT
In force
36 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Scott County, MN

The radar

The Minneapolis radar (KMPX), 25 km from the middle of the area, began a volume at 19:58 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.9 hours before the alert went out and 25 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2002-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2002-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 401 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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 081954
SVRMSP
MNC139-082030-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SCOTT COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 330 PM CDT

* AT 254 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL 10 MILES SOUTH OF JORDAN...OR ABOUT 3 MILES WEST OF NEW
  PRAGUE...MOVING NORTHEAST AT 45 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  JORDAN.
  PRIOR LAKE.
  SHAKOPEE.

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

LAT...LON 4455 9382 4455 9351 4467 9333 4480 9346

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 11:50 AM CDTSevere Thunderstorm WarningMPXRedwood55 min
May 8, 12:07 PM CDTFlash Flood WarningMPXBrown, Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine3 hr
May 8, 12:17 PM CDTFlash Flood WarningMPXBrown, Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine3 hr
May 8, 2:15 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet45 min
May 8, 2:48 PM CDTSevere Thunderstorm WarningMPXWaseca42 min
May 8, 2:59 PM CDTSevere Thunderstorm WarningMPXLe Sueur31 min
May 8, 3:04 PM CDTSevere Thunderstorm WarningMPXDakota, Rice41 min
May 8, 3:42 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Rice48 min
May 8, 4:28 PM CDTSevere Thunderstorm WarningMPXGoodhue47 min
May 8, 5:16 PM CDTSevere Thunderstorm WarningMPXGoodhue29 min
May 8, 5:24 PM CDTTornado WarningMPXGoodhue36 min
May 8, 5:45 PM CDTSevere Thunderstorm WarningMPXCarver30 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2002Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.