Alert archive / Nebraska / Tornado Warnings in 2003

Tornado Warning 17, NWS North Platte, NE

June 9, 2003Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 9, 2003, 6:52 PM CDT for Custer County, Nebraska. It was in force for 38 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, 6:52 PM CDT (23:52 UTC)
Expired: Jun 9, 2003, 7:30 PM CDT
In force: 38 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Custer County, NE

The radar

The North Platte radar (KLNX), 105 km from the middle of the area, began a volume at 23:55 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, 4:50 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.9 hours before the alert went out and 100 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: 343 J/kg
Mixed-layer CIN: -293 J/kg
Mixed-layer LCL: 1527 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

471 
WFUS53 KLBF 092352
TORLBF
NEC041-100030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
650 PM CDT MON JUN 9 2003

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CUSTER COUNTY IN CENTRAL NEBRASKA

* UNTIL 730 PM CDT

* AT 650 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG
  ROTATION 6 MILES WEST OF SARGENT...OR ABOUT 11 MILES SOUTHWEST OF
  TAYLOR...MOVING EAST AT 30 MPH. THIS STORM IS CAPABLE OF PRODUCING
  A TORNADO AT ANY TIME.

* THE DEVELOPING TORNADO WILL BE NEAR...
  OVER SARGENT AROUND 700 PM CDT
  7 MILES NORTH OF COMSTOCK AROUND 710 PM CDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY EVENING FOR
NORTH CENTRAL NEBRASKA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
1000 PM CDT MONDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4172 9968 4108 9965 4110 9923 4173 9925

$$

DP/TLK

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 5:11 PM CDT	Severe Thunderstorm Warning	LBF	Keya Paha	64 min
Jun 9, 5:47 PM CDT	Severe Thunderstorm Warning	LBF	Custer	58 min
Jun 9, 5:54 PM CDT	Severe Thunderstorm Warning	LBF	Boyd	51 min
Jun 9, 6:02 PM CDT	Tornado Warning	LBF	Keya Paha	43 min
Jun 9, 6:18 PM CDT	Tornado Warning	LBF	Holt, Keya Paha, Rock	57 min
Jun 9, 6:38 PM CDT	Tornado Warning	LBF	Holt	52 min
Jun 9, 6:45 PM CDT	Severe Thunderstorm Warning	LBF	Custer	45 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.