Alert archive / Nebraska / Tornado Warnings in 2002

Tornado Warning 14, NWS North Platte, NE

August 24, 2002Deuel County, Garden County, Nebraska

NWS North Platte, NE issued this tornado warning at Aug 24, 2002, 2:12 PM MDT for Deuel County, Garden County, Nebraska. It was in force for 33 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
Aug 24, 2002, 2:12 PM MDT (20:12 UTC)
Expired
Aug 24, 2002, 2:45 PM MDT
In force
33 min
Issued by
NWS North Platte, NE
Area
Counties, with a storm outline in the text

Counties Deuel County, NE, Garden County, NE

The radar

The North Platte radar (KLNX), 160 km from the middle of the area, began a volume at 20:13 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

TimeReportWhereRemark
Aug 24, 2:28 PM MDTHail 2.5Chappell, NEHail broke several windows at two farmsteads.

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.

IssuedProductOfficeLasted
Aug 24, 1:15 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.2 hours before the alert went out and 147 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2002-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2002-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
396 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
916 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 7:07 PM MDTSevere Thunderstorm WarningLBFBrown53 min
Aug 23, 7:49 PM MDTSevere Thunderstorm WarningLBFCherry, Sheridan56 min
Aug 23, 9:08 PM MDTSevere Thunderstorm WarningLBFBlaine37 min
Aug 23, 9:58 PM MDTSevere Thunderstorm WarningLBFCherry62 min
Aug 23, 11:22 PM MDTSevere Thunderstorm WarningLBFBrown, Rock38 min
Aug 23, 11:44 PM MDTSevere Thunderstorm WarningLBFKeya Paha46 min
Aug 24, 12:06 AM MDTSevere Thunderstorm WarningLBFHolt, Rock54 min
Aug 24, 12:28 AM MDTSevere Thunderstorm WarningLBFBoyd, Holt62 min
Aug 24, 1:32 AM MDTSevere Thunderstorm WarningLBFHolt43 min
Aug 24, 2:01 PM MDTSevere Thunderstorm WarningLBFGarden59 min
Aug 24, 2:45 PM MDTTornado WarningLBFDeuel30 min
Aug 24, 3:16 PM MDTTornado WarningLBFDeuel14 min
Aug 24, 3:41 PM MDTTornado WarningLBFPerkins49 min
Aug 24, 4:09 PM MDTSevere Thunderstorm WarningLBFDeuel51 min
Aug 24, 4:28 PM MDTTornado WarningLBFChase62 min
Aug 24, 5:20 PM MDTSevere Thunderstorm WarningLBFCuster55 min

Nearby

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