Alert archive / Nebraska / Tornado Warnings in 2001

Tornado Warning 16, NWS North Platte, NE

July 4, 2001McPherson County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 4, 2001, 7:02 PM CDT for McPherson County, Nebraska. It was in force for 58 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: Jul 4, 2001, 7:02 PM CDT (00:02 UTC)
Expired: Jul 4, 2001, 8:00 PM CDT
In force: 58 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County McPherson County, NE

What was reported inside it

Time	Report	Where	Remark
Jul 4, 7:25 PM CDT	Hail 1.75	Tryon, NE

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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, 0.0 hours before the alert went out and 78 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 050004
TORLBF

NEC117-050100-

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

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA

* UNTIL 800 PM CDT

* AT 656 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO OVER EXTREME NORTHWESTERN
  MCPHERSON COUNTY...OR ABOUT 19 MILES NORTHWEST OF TRYON...MOVING
  SOUTH AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE...
  OVER FARM AND RANGELANDS EAST OF WHITE WATER LAKE.   

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

LAT...LON 4173 10107 4173 10138 4140 10137 4142 x10104

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 9:10 PM CDT	Tornado Warning	LBF	Lincoln	35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.