Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 19, NWS Goodland, KS

August 21, 1997Dundy County, Hitchcock County, Nebraska

NWS Goodland, KS issued this tornado warning at Aug 21, 1997, 7:13 PM MDT for Dundy County, Hitchcock County, Nebraska. It was in force for 47 min. 3 reports 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 21, 1997, 7:13 PM MDT (01:13 UTC)
Expired
Aug 21, 1997, 8:00 PM MDT
In force
47 min
Issued by
NWS Goodland, KS
Area
Whole counties

Counties Dundy County, NE, Hitchcock County, NE

What was reported inside it

TimeReportWhereRemark
Aug 21, 7:25 PM MDTTornado F1Benkelman, NEWeak tornado moving south southeast blew out windows and tore down tree branches. One inch hail was observed 2 miles east of tornado.
Aug 21, 7:45 PM MDTHail 4Benkelman, NEHail up to grapefruit size damaged vehicles, roofs, and siding and destroyed windows and windshields. The hail was accompanied by strong winds. At 1840 MST, 1.25 inch diameter hail was reported 16 miles north of Benkelman and winds broke 4 branches up to 3 i
Aug 21, 8:00 PM MDTThunderstorm Wind 61Max, NETree branches up to 8 inches in diameter downed. Hail up to 2 inches in diameter fell at Max between 1848 and 1853 MST.

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 21, 6:00 PM MDTTornado WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.2 hours before the alert went out and 124 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 00:00Z on 1997-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2266 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 00:00Z on 1997-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.19395878Sfc1 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
2266 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1174 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
301 m²/s²
Significant tornado parameter
3.0
Supercell composite
15.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGLD 220114 RRA
TORGLD
NEC057-087-220200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
713 PM MDT (813 PM CDT) THU AUG 21 1997

* TORNADO WARNING FOR
  EASTERN DUNDY COUNTY IN SOUTHWESTERN NEBRASKA
  WESTERN HITCHCOCK COUNTY IN SOUTHWESTERN NEBRASKA

* UNTIL 800 PM MDT (900 PM CDT)
 
* SOME LOCATIONS AFFECTED
  9 MILES NORTH OF MAX                    AROUND 720 PM MDT
  MAX                                     AROUND 740 PM MDT
  STRATTON                                AROUND 840 PM CDT
  8 MILES SOUTH OF STRATTON               AROUND 855 PM CDT

* AT 711 PM MDT (811 PM CDT)...GOODLAND DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 17 MILES SOUTHEAST OF IMPERIAL OR 614 MILES NORTH
  OF MAX MOVING SOUTH AT 30 MPH.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

VJN

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 21, 7:46 PM MDTSevere Thunderstorm WarningGLDRed Willow49 min
Aug 21, 7:57 PM MDTSevere Thunderstorm WarningGLDDundy, Hitchcock48 min

Nearby

Tornado Warnings in Nebraska, 1997Every tornado warning in 1997Tornadoes in 1997

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.