Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 75, NWS Twin Cities, MN

May 8, 2002Redwood County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 8, 2002, 11:50 AM CDT for Redwood County, Minnesota. It was in force for 55 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, 11:50 AM CDT (16:50 UTC)
Expired
May 8, 2002, 12:45 PM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Redwood County, MN

The radar

The Sioux Falls radar (KFSD), 136 km from the middle of the area, began a volume at 16:50 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, 4.8 hours before the alert went out and 151 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 081650
SVRMSP
MNC127-081745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1149 AM CDT WED MAY 8 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 1245 PM CDT

* AT 1149 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL 5 MILES SOUTHWEST OF REVERE...OR ABOUT 11 MILES SOUTHEAST OF
  TRACY...MOVING NORTHEAST AT 35 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  LAMBERTON.
  REDWOOD FALLS.
  WABASSO.
  WALNUT GROVE.

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

LAT...LON 4415 9559 4406 9537 4451 9493 4463 9525

The office that day

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

IssuedProductOfficeCountiesLasted
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, 2:54 PM CDTSevere Thunderstorm WarningMPXScott36 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.