Alert archive / Nebraska / Tornado Warnings in 1998

Tornado Warning 31, NWS North Platte, NE

July 2, 1998Garden County, Nebraska

NWS North Platte, NE issued this tornado warning at Jul 2, 1998, 9:47 PM MDT for Garden County, Nebraska. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 2, 1998, 9:47 PM MDT (03:47 UTC)
Expired: Jul 2, 1998, 10:50 PM MDT
In force: 63 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Garden County, NE

The radar

The North Platte radar (KLNX), 151 km from the middle of the area, began a volume at 03:51 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 2, 10:00 PM MDT	Thunderstorm Wind	Oshkosh, NE	Thunderstorm winds caused extensive tree damage.

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, 3.8 hours before the alert went out and 155 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: 2041 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1697 m above ground
0-6 km bulk shear: 148 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 297 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 17.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 030343 RRA
TORLBF
NEC069-030450-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1047 PM CDT (947 PM MDT) THU JUL 2 1998

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  GARDEN COUNTY IN THE NEBRASKA PANHANDLE

* UNTIL 1050 PM MDT (1150 PM CDT)

* AT 945 PM MDT... SPOTTERS REPORTED A TORNADO 31 MILES NORTHEAST
  OF SIDNEY OR 7 MILES WEST NORTHWEST OF OSHKOSH MOVING EAST AT 40
  MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  OSHKOSH                      BY 955 PM MDT
  LEWELLEN                     BY 1010 PM MDT

THIS IS A DANGEROUS SITUATION! ACT QUICKLY! IT MAY SAVE YOUR LIFE!
MOVE TO A BASEMENT IF POSSIBLE. OTHERWIS<E...GO TO A SMALL INTERIOR
ROOM ON THE LOWEST FLOOR.  STAY AWAY FROM WINDOWS AND DOORS.

TLW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 9:39 PM MDT	Severe Thunderstorm Warning	LBF	Garden	66 min
Jul 2, 10:39 PM MDT	Severe Thunderstorm Warning	LBF	Sheridan	61 min
Jul 2, 10:51 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, Garden, Grant	59 min
Jul 2, 11:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	61 min
Jul 3, 12:15 AM MDT	Severe Thunderstorm Warning	LBF	Blaine, Loup	45 min
Jul 3, 12:20 AM MDT	Severe Thunderstorm Warning	LBF	Hooker	50 min
Jul 3, 12:44 AM MDT	Severe Thunderstorm Warning	LBF	Thomas	66 min
Jul 3, 1:04 AM MDT	Severe Thunderstorm Warning	LBF	Loup	46 min
Jul 3, 1:15 AM MDT	Severe Thunderstorm Warning	LBF	Brown	65 min
Jul 3, 1:18 AM MDT	Severe Thunderstorm Warning	LBF	Logan	32 min
Jul 3, 1:58 AM MDT	Severe Thunderstorm Warning	LBF	Loup, Rock	62 min
Jul 3, 2:30 AM MDT	Severe Thunderstorm Warning	LBF	Garfield	65 min
Jul 3, 2:59 AM MDT	Severe Thunderstorm Warning	LBF	Holt, Wheeler	51 min

Nearby

Tornado Warnings in Nebraska, 1998 Every tornado warning in 1998 Tornadoes in 1998

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.