Alert archive / Nebraska / Tornado Warnings in 2000

Tornado Warning 31, NWS North Platte, NE

July 24, 2000Brown County, Keya Paha County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 24, 2000, 7:26 PM CDT for Brown County, Keya Paha County, Nebraska. It was in force for 64 min. 5 reports 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 24, 2000, 7:26 PM CDT (00:26 UTC)
Expired: Jul 24, 2000, 8:30 PM CDT
In force: 64 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Brown County, NE, Keya Paha County, NE

The radar

The North Platte radar (KLNX), 110 km from the middle of the area, began a volume at 00:27 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.

What was reported inside it

Time	Report	Where	Remark
Jul 24, 7:47 PM CDT	Tornado F1	Johnstown, NE
Jul 24, 8:00 PM CDT	Hail 1	Springview, NE
Jul 24, 8:07 PM CDT	Hail 2.75	Johnstown, NE
Jul 24, 8:12 PM CDT	Tornado F1	Wood Lake, NE	A tornado touched down 7 miles northwest of Johnstown and was intermittently on the ground producing tree damage in Brown county. The tornado continued to touch down intermittently and grew to a width of a quarter mile near the Brown and Cherry county line. Th
Jul 24, 8:20 PM CDT	Hail 2	Johnstown, 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 24, 5:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.4 hours before the alert went out and 197 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: 2383 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 2608 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 250027
TORLBF

NEC017-103-250130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
726 PM CDT MON JUL 24 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA
  NORTHERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA

* UNTIL 830 PM CDT

* AT 722 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A POSSIBLE TORNADO 19 MILES NORTH OF JOHNSTOWN...OR ABOUT 18 MILES
  WEST OF   SPRINGVIEW...MOVING SOUTH AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE...
  2 MILES EAST OF JOHNSTOWN AROUND 805 PM CDT
  7 MILES WEST OF AINSWORTH AROUND 815 PM CDT

THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY...IT MAY SAVE YOUR
LIFE.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING
FOR NORTH CENTRAL NEB:RASKA.

LAT...LON 4307 9985 4308 10021 4247 10016 4247 9972
$$

TLK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 8:14 PM CDT	Tornado Warning	LBF	Brown, Cherry	61 min
Jul 24, 9:05 PM CDT	Tornado Warning	LBF	Blaine	55 min
Jul 24, 9:14 PM CDT	Tornado Warning	LBF	Brown, Cherry	31 min
Jul 24, 9:34 PM CDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	56 min
Jul 24, 9:47 PM CDT	Tornado Warning	LBF	Custer	58 min
Jul 24, 9:58 PM CDT	Tornado Warning	LBF	Blaine	62 min
Jul 24, 10:11 PM CDT	Severe Thunderstorm Warning	LBF	Garfield	49 min
Jul 24, 10:39 PM CDT	Tornado Warning	LBF	Custer	66 min
Jul 24, 11:45 PM CDT	Severe Thunderstorm Warning	LBF	Custer	30 min

Nearby

Tornado Warnings in Nebraska, 2000 Every tornado warning in 2000 Tornadoes in 2000

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; radar from the NEXRAD Level II archive.