Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 1, NWS Hastings, NE

May 6, 1997Sherman County, Nebraska

NWS Hastings, NE issued this tornado warning at May 6, 1997, 10:29 PM CDT for Sherman County, Nebraska. It was in force for 31 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
May 6, 1997, 10:29 PM CDT (03:29 UTC)
Expired
May 6, 1997, 11:00 PM CDT
In force
31 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Sherman County, NE

The radar

The Grand Island radar (KUEX), 110 km from the middle of the area, began a volume at 03:31 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
May 6, 10:55 PM CDTHail 0.75Loup City, 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.5 hours before the alert went out and 136 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 1997-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 447 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 1997-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
447 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
2513 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRI 070330 RRA
TORGRI
NEC163-070400-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1029 PM CDT TUE MAY 6 1997
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1100 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NEBRASKA
 
   ...SHERMAN COUNTY
 
PERSONS IN LOUP CITY SHOULD TAKE COVER NOW. RADAR INDICATED A POSSIBLE
TORNADO 10 MILES NORTHWEST OF LOUP CITY...JUST SOUTH OF ARCADIA...OR 50
MILES NORTHWEST OF GRAND ISLAND.  THE STORM WAS MOVING SOUTHEAST AT 30
MPH AND SHOULD PASS NEAR LOUP CITY BETWEEN 1040 AND 1050 PM.
TAKE COVER NOW.
 
 
IN ADDITION TO THE THREAT OF TORNADOES...LARGE HAIL AND DAMAGING
WINDS ARPE LIKELY WITH THIS STORM.  TAKE COVER NOW.
 
DROZD

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 9:50 PM CDTSevere Thunderstorm WarningGIDValley40 min
May 6, 10:38 PM CDTSevere Thunderstorm WarningGIDValley22 min
May 6, 11:05 PM CDTSevere Thunderstorm WarningGIDSherman40 min
May 6, 11:20 PM CDTSevere Thunderstorm WarningGIDHall, Howard55 min
May 7, 12:16 AM CDTSevere Thunderstorm WarningGIDHall, Howard44 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; radar from the NEXRAD Level II archive.