Alert archive / Nebraska / Tornado Warnings in 2000

Tornado Warning 12, NWS North Platte, NE

May 29, 2000Custer County, Nebraska

NWS North Platte, NE issued this tornado warning at May 29, 2000, 8:52 PM CDT for Custer County, Nebraska. It was in force for 38 min. 2 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: May 29, 2000, 8:52 PM CDT (01:52 UTC)
Expired: May 29, 2000, 9:30 PM CDT
In force: 38 min
Issued by: NWS North Platte, NE
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Custer County, NE

The radar

The North Platte radar (KLNX), 100 km from the middle of the area, began a volume at 01:55 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.

What was reported inside it

Time	Report	Where	Remark
May 29, 9:15 PM CDT	Thunderstorm Wind	Oconto, NE	Large tree limbs down
May 29, 9:40 PM CDT	Thunderstorm Wind	Mason City, NE	Large tree limbs down

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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.9 hours before the alert went out and 67 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: 1075 J/kg
Mixed-layer CIN: -144 J/kg
Mixed-layer LCL: 3109 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 300153
TORLBF
NEC041-300230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
852 PM CDT MON MAY 29 2000

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

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

* UNTIL 930 PM CDT. THIS TORNADO WARNING REPLACES THE SEVERE THUDNERSTORM
  WARNING PREVIOUSLY ISSUED FOR SOUTHERN CUSTER COUNTY.

* AT 850 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO 7 MILES SOUTH OF
  CALLAWAY...OR ABOUT 19 MILES SOUTHWEST OF BROKEN BOW...MOVING EAST
  AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE...
  NEAR OCONTO AROUND 900 PM CDT
  14 MILES SOUTH OF BERWYN AROUND 915 PM CDT
  11 MILES SOUTH OF ANSLEY AROUND 925 PM CDT
  7 MILES SOUTH OF MASON CITY AROUND 930 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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TUESDAY MORNING FOR NORTHWESTERN NEBRASKA.

LAT...LON 4138 10019 4107 10018 4107 9925 4139 9927

NNNN

$$
CDC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 7:05 PM CDT	Severe Thunderstorm Warning	LBF	Keith	40 min
May 29, 7:30 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	45 min
May 29, 7:50 PM CDT	Tornado Warning	LBF	Lincoln	25 min
May 29, 8:00 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer	45 min
May 29, 8:14 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	46 min
May 29, 8:27 PM CDT	Severe Thunderstorm Warning	LBF	Custer	63 min
May 29, 8:45 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Custer, Loup	60 min
May 29, 9:06 PM CDT	Severe Thunderstorm Warning	LBF	Holt	54 min
May 29, 9:33 PM CDT	Severe Thunderstorm Warning	LBF	Custer	27 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.