Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 3, NWS Sioux Falls, SD

June 9, 2003Dakota County, Nebraska

NWS Sioux Falls, SD issued this tornado warning at Jun 9, 2003, 8:10 PM CDT for Dakota County, Nebraska. It was in force for 35 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 9, 2003, 8:10 PM CDT (01:10 UTC)
Expired: Jun 9, 2003, 8:45 PM CDT
In force: 35 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), 123 km from the middle of the area, began a volume at 01:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 9, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 9, 6:50 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 1.2 hours before the alert went out and 123 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: 223 J/kg
Mixed-layer CIN: -235 J/kg
Mixed-layer LCL: 2359 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

445 
WFUS53 KFSD 100110
TORFSD
NEC043-100145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
809 PM CDT MON JUN 9 2003

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  DAKOTA COUNTY IN NORTHEAST NEBRASKA

* UNTIL 845 PM CDT

* AT 809 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A THUNDERSTORM WITH A DEVELOPING TORNADO SOUTH OF                  
  HUBBARD...OR ABOUT 8 MILES WEST OF DAKOTA CITY...MOVING EAST AT 10 
  MPH.

* SOME LOCATIONS AFFECTED...
RURAL DAKOTA COUNTY THROUGH 820 PM CDT

A TRAINED WEATHER SPOTTER REPORTED A FUNNEL CLOUD BETWEEN HUBBARD 
AND HOMER.

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT.

LAT...LON 4250 9671 4228 9672 4229 9640 4248 9645

$$

08

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 7:03 PM CDT	Severe Thunderstorm Warning	FSD	Dakota	42 min
Jun 9, 7:14 PM CDT	Severe Thunderstorm Warning	FSD	Dixon	31 min
Jun 9, 7:35 PM CDT	Flash Flood Warning	FSD	Dixon	3 hr
Jun 9, 7:47 PM CDT	Severe Thunderstorm Warning	FSD	Dakota	58 min
Jun 9, 8:20 PM CDT	Severe Thunderstorm Warning	FSD	Dixon	25 min
Jun 9, 8:38 PM CDT	Flash Flood Warning	FSD	Dakota	3 hr
Jun 9, 8:46 PM CDT	Severe Thunderstorm Warning	FSD	Dakota	59 min
Jun 9, 9:55 PM CDT	Severe Thunderstorm Warning	FSD	Dixon	50 min

Nearby

Tornado Warnings in Nebraska, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.