Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 5, NWS Twin Cities, MN

April 6, 2006Scott County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 6, 2006, 4:37 PM CDT for Scott County, Sibley County, Minnesota. It was in force for 23 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
Apr 6, 2006, 4:37 PM CDT (21:37 UTC)
Expired
Apr 6, 2006, 5:00 PM CDT
In force
23 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Scott County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 37 km from the middle of the area, began a volume at 21:37 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.6 hours before the alert went out and 35 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 2006-04-06Temperature 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 2006-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 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
988 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 062138
SVRMPX
MNC139-143-062200-
/O.NEW.KMPX.SV.W.0005.060406T2137Z-060406T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
437 PM CDT THU APR 6 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 500 PM CDT

* AT 433 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED OVER SCOTT
  COUNTY...OR ABOUT 19 MILES NORTH OF ST PETER...AND MOVING NORTH AT
  10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BLAKELY...
  GREEN ISLE...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4455 9396 4455 9390 4455 9390 4455 9377
      4467 9378 4467 9390 4471 9390 4471 9398

$$
RAH/LS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 3:26 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville34 min
Apr 6, 4:01 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle44 min
Apr 6, 4:20 PM CDTSevere Thunderstorm WarningMPXCarver40 min
Apr 6, 4:26 PM CDTSevere Thunderstorm WarningMPXMcLeod64 min
Apr 6, 5:01 PM CDTSevere Thunderstorm WarningMPXCarver59 min
Apr 6, 6:24 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey62 min
Apr 6, 6:37 PM CDTFlash Flood WarningMPXHennepin, Ramsey113 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2006Every severe thunderstorm warning in 2006

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.