Alert archive / Nebraska / Tornado Warnings in 2002

Tornado Warning 5, NWS North Platte, NE

June 7, 2002Keith County, Nebraska

NWS North Platte, NE issued this tornado warning at Jun 7, 2002, 6:44 PM MDT for Keith County, Nebraska. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 7, 2002, 6:44 PM MDT (00:44 UTC)
Expired: Jun 7, 2002, 7:15 PM MDT
In force: 31 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Keith County, NE

The radar

The North Platte radar (KLNX), 107 km from the middle of the area, began a volume at 00:46 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
Jun 7, 7:00 PM MDT	Thunderstorm Wind 52 E	Paxton, 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
Jun 7, 4:30 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.7 hours before the alert went out and 74 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: 942 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 3335 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLBF 080044
TORLBF
NEC101-080115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
642 PM MDT FRI JUN 7 2002

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA

* UNTIL 715 PM MDT...

* AT 631 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG       
  ROTATION 8 MILES NORTH OF PAXTON...OR ABOUT 15 MILES WEST OF       
  SUTHERLAND...MOVING SOUTHWEST AT 20 MPH.  A TORNADOES WERE         
  SPOTTED NEAR SUTHERLAND AND PAXTON ALONG INTERSTATE 80

* THE TORNADO IS EXPECTED TO BE...
  ALONG INTERSTATE 80 OVER EASTERN KEITH COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
FRIDAY EVENING FOR WESTERN NEBRASKA.

LAT...LON 4138 10163 4103 10165 4107 10133 4132 10127
          4132 10134 4134 10139

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 6:32 PM MDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln, McPherson	58 min
Jun 7, 6:52 PM MDT	Tornado Warning	LBF	Lincoln	23 min
Jun 7, 7:10 PM MDT	Severe Thunderstorm Warning	LBF	Custer	50 min
Jun 7, 7:14 PM MDT	Severe Thunderstorm Warning	LBF	Garden, Sheridan	46 min
Jun 7, 7:15 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	60 min
Jun 7, 7:27 PM MDT	Severe Thunderstorm Warning	LBF	McPherson	63 min
Jun 7, 7:37 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	53 min
Jun 7, 8:03 PM MDT	Severe Thunderstorm Warning	LBF	Holt	57 min
Jun 7, 8:55 PM MDT	Severe Thunderstorm Warning	LBF	Custer	65 min
Jun 7, 9:11 PM MDT	Severe Thunderstorm Warning	LBF	Blaine	49 min
Jun 8, 1:20 AM MDT	Severe Thunderstorm Warning	LBF	Boyd, Holt	55 min

Nearby

Tornado Warnings in Nebraska, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.