Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 19, NWS North Platte, NE

July 4, 2001Lincoln County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 4, 2001, 9:10 PM CDT for Lincoln 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 the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 4, 2001, 9:10 PM CDT (02:10 UTC)
Expired: Jul 4, 2001, 9:45 PM CDT
In force: 35 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Lincoln County, NE

The radar

The North Platte radar (KLNX), 102 km from the middle of the area, began a volume at 02:11 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
Jul 4, 6:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.2 hours before the alert went out and 41 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: 2575 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1657 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 310 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 17.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 050212
TORLBF

NEC111-050245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
910 PM CDT WED JUL 4 2001

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL LINCOLN COUNTY IN SOUTHWEST NEBRASKA

* UNTIL 945 PM CDT

* AT 900 PM CDT...LAW ENFORCEMENT OFFICIALS REPORTED A FUNNEL
  CLOUD 2 MILES WEST OF SUTHERLAND...OR ABOUT 20 MILES  WEST OF NORTH
  PLATTE...MOVING SOUTH AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE...
  OVER FARM AND RANGELANDS OF WEST CENTRAL LINCOLN COUNTY BETWEEN
  SUTHERLAND AND WALLACE.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4124 10103 4118 10125 4099 10125 4098 10087
$$

SPRINGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:02 PM CDT	Tornado Warning	LBF	McPherson	58 min
Jul 4, 7:51 PM CDT	Tornado Warning	LBF	Arthur	54 min
Jul 4, 7:59 PM CDT	Severe Thunderstorm Warning	LBF	McPherson	31 min
Jul 4, 8:06 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	54 min
Jul 4, 8:22 PM CDT	Severe Thunderstorm Warning	LBF	Keith	53 min
Jul 4, 8:43 PM CDT	Tornado Warning	LBF	Lincoln	32 min
Jul 4, 9:13 PM CDT	Severe Thunderstorm Warning	LBF	Keith	62 min
Jul 4, 9:18 PM CDT	Severe Thunderstorm Warning	LBF	Chase, Perkins	57 min
Jul 4, 9:50 PM CDT	Severe Thunderstorm Warning	LBF	Chase	55 min
Jul 5, 12:40 AM CDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	65 min

Nearby

Tornado Warnings in Nebraska, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.