Alert archive / Nebraska / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 271, NWS Sioux Falls, SD

June 8, 2004Dakota County, Nebraska

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 8, 2004, 4:28 PM CDT for Dakota County, Nebraska. It was in force for 32 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
Jun 8, 2004, 4:28 PM CDT (21:28 UTC)
Expired
Jun 8, 2004, 5:00 PM CDT
In force
32 min
Issued by
NWS Sioux Falls, SD
Area
Counties, with a storm outline in the text

County Dakota County, NE

The radar

The Omaha radar (KOAX), 120 km from the middle of the area, began a volume at 21:31 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

Omaha, NE (KOAX), launched 12:00Z, 9.5 hours before the alert went out and 120 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, Omaha, NE at 12:00Z on 2004-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1844 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2004-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 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
1844 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
253 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 KFSD 082128
SVRFSD
NEC043-082200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHEL WEAVICE SIOUX FALLS SD
428SP 
D2 TUE JUN 8 2004

THE 
AITNEL WEATHER SERVICE IN SIOU  NASLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAKOTA COUNTY IN NORTHEAST NEBRASKA

* UNTIL 500 PM CDT

* AT 422 PM CDT...NATIONAL WEATHAR SERVICE DOPPLER RADAR INDACAT DNA
  SEVERE THUNDERSTORMDCRPTBRE OF PRODUCING NICKEL SIZC EA LI  THIS
  STORM WAS LOCATED NEAR HUBBARD...OR ABOUT 13 MILES SOUTHWEST OF
  SIOUX CITY...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILLOBM WEAR...
  SOUTH SIOUX CITYOAXOCND 450 PM CDT

THIS STOTMIW LL PRODUCE LARGE HAIL. GOHIIS.DG A STURDY BUILDING AND
STAY AWAY FROM WINDOWS.

LAT...LON 4229 9672 4229 9638 4236 9644 4248 9641
          4251 9655 4252 9671

$$

08

0

Nearby

Severe Thunderstorm Warnings in Nebraska, 2004Every severe thunderstorm warning in 2004

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.