Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 6, NWS Hastings, NE

June 11, 1997Sherman County, Nebraska

NWS Hastings, NE issued this tornado warning at Jun 11, 1997, 7:47 PM CDT for Sherman County, Nebraska. It was in force for 28 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
Jun 11, 1997, 7:47 PM CDT (00:47 UTC)
Expired
Jun 11, 1997, 8:15 PM CDT
In force
28 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 00:48 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
Jun 11, 8:08 PM CDTHail 1.75Ashton, 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.

IssuedProductOfficeLasted
Jun 11, 3:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 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 1997-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 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 1997-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
47 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
2573 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

433 
WFUS1 KGRI 120047 RRA
TORGRI
NEC163-120115-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
747 PM CDT WED JUN 11 1997
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL NEBRASKA
 
   ...SOUTHEASTERN SHERMAN COUNTY
 
AT 745 PM WEATHER SERVICE RADAR INDICATED A TORNADO 3 MILES NORTHEAST OF
ROCKVILLE OR 30 MILES NORTHWEST OF GRAND ISLAND. A TORNADO WAS REPORTED
3 MILES NORTHWEST OF ROCKVILLE AT 739 PM BY THE ROCKVILLE FIRE
DEPARTMENT. PERSONS IN ROCKVILLE AND AREAS SOUTHEAST NEED TO BE IN THEIR
STORM SHELTERS AT THIS TIME. THE STORM IS MOVING SOUTHEAST AT 25 MPH.
 
PERSONS IN THE WARNED AREA SHOULD TAKE SHELTER IN A BASEMENT IF
AVAILABLE.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.  CARS AND MOBILE HOMES SHOULD BE ABANDONED.
 
 
 
&

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this tornado warning went out at Jun 11, 2:54 PM CDT, 4 hours 53 minutes earlier.

Area forecast discussion, Jun 11, 2:54 PM CDT, 4 hours 53 minutes before
CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
253 PM CDT WED JUN 11 1997

TSTMS AND TEMPS MAIN CHALLENGES.

LONE SVR STORM CURRENTLY RUMBLING ACROSS ERN CWA IN AREA OF SFC MSTR
CONVG INVOF H7 S/W CLEARLY EVIDENT ON PROFILERS. ALSO SHOWN IS LFQ
OF H3 JET ON PROFILERS.  WV IMGRY SHOWS SECONDARY S/W HAS CAUGHT UP
WITH REMNANT CONVECTION FROM THIS MORNING/INITIAL S/W.  THIS HAS
INTENSIFIED STORMS ATTM.  AT CURRENT MOVMENT...THESE SHOULD BE OUT OF
AREA BY ISSUANCE TIME.

FARTHER WEST...CLEARING HAS OCCURRED WITH TEMPS NEAR 80. WRN EDGE OF
MSTR AXIS EXTENDS ACROSS WC NEBR INTO WRN KS INTO LOW VCNTY OF VTN.
ADAP CONTINUES TO INDCT BEST MSTR CONVG OVER NW NEBR/SW SDAK
AND INTO NW KS. WHILE SOME STORMS COULD FORM ALONG MSTR GRAD/TROF...
NO UPPER SHORT WAVE EVIDENT ON PROFS OR WV IMGRY.  THE LOW IS PROGGED
TO MOVE SOUTHEAST AND DROP A WIND SHIFT SOUTH WITH IT OVERNIGHT.
ANY THAT DO FORM COULD BE SVR AS PER SWODY1.  COULD BE MORE LATE TNGT
ALONG SFC BNDRY SO WILL NOT ATTEMPT TO TIME PCPN OVERNIGHT .

WHILE FWC GUIDANCE CONTINUES TO HIT TSTMS PROBS HARD THRU PERIOD...
WILL STAY WELL BLO NUMBERS.  ONE JET MAX HEADING NE ACROSS NEVADA
ATTM MAY COME INTO PLAY TOMORROW...HWVR WITH SFC BNDRY SOUTH OF FA...
BETTER CHANCES SHUD BE THU NGT.

WITH NEW UPPER LOW OVER SW US...SERIES OF WAVES EJECTING OUT OF IT...
AM NOT CONFIDENT IN MODELS DEPICTION OF THESE FEATURES FOR LATTER
PDS OF FCST.   WILL CONTINUE BLANKET POPS THU NGT INTO FRIDAY.

TEMPWISE...
PREFER ETA WITH MOVMNT OF SFC LOW TAKING IT FARTHER SOUTH BY THURS.
THEREFORE...WILL GO WITH COOLER FAN READINGS FOR MAXES THURSDAY.
FWC/FAN COMPRMS LOOKS IN ORDER FOR REMAINING PDS.

GRI BB 060/076/058/075 6133
ODX BB 059/076/057/075 6133
LXN BB 057/077/056/078 6133
HBR BB 062/080/060/079 5233
BEL BB 064/083/062/080 4333

DROZD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:06 PM CDTSevere Thunderstorm WarningGIDFurnas54 min
Jun 11, 7:15 PM CDTSevere Thunderstorm WarningGIDGosper45 min
Jun 11, 7:25 PM CDTTornado WarningGIDFurnas35 min
Jun 11, 7:33 PM CDTTornado WarningGIDHoward42 min
Jun 11, 7:55 PM CDTSevere Thunderstorm WarningGIDHarlan65 min
Jun 11, 8:05 PM CDTTornado WarningGIDHall25 min
Jun 11, 8:18 PM CDTSevere Thunderstorm WarningGIDHoward42 min
Jun 11, 8:23 PM CDTTornado WarningGIDHall37 min
Jun 11, 8:47 PM CDTSevere Thunderstorm WarningGIDFranklin43 min
Jun 11, 8:51 PM CDTSevere Thunderstorm WarningGIDWebster39 min
Jun 11, 8:58 PM CDTTornado WarningGIDHall, Hamilton47 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.