Alert archive / Nebraska / Tornado Warnings in 1990

Tornado Warning 26, NWS Hastings, NE

June 12, 1990Howard County, Merrick County, Nebraska

NWS Hastings, NE issued this tornado warning at Jun 12, 1990, 10:51 PM CDT for Howard County, Merrick County, Nebraska. It was in force for 39 min. 2 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
Jun 12, 1990, 10:51 PM CDT (03:51 UTC)
Expired
Jun 12, 1990, 11:30 PM CDT
In force
39 min
Issued by
NWS Hastings, NE
Area
Whole counties

Counties Howard County, NE, Merrick County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jun 12, 11:15 PM CDTThunderstorm Wind 52Merrick, NE
Jun 12, 11:30 PM CDTTornado F1Merrick, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.9 hours before the alert went out and 160 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, Omaha, NE at 00:00Z on 1990-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Omaha, NE at 00:00Z on 1990-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 227 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3586 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
227 m²/s²
0-3 km storm-relative helicity
349 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRI 130351
TORGRI
NEC093-121-130430-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GRAND ISLAND NE
1051 PM CDT TUE JUN 12 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 1130 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF NEBRASKA
      EASTERN HOWARD...WESTERN MERRICK

AT 1045 RADAR INDICATED AND FIRE PERSONNEL IN CAIRO NEBRASKA
REPORTED A TORNADO ON THE GROUND 8 MILES NORTHEAST OF CAIRO...
OR 9 MILES NORTHEAST OF GRAND ISLAND NEBRASKA...MOVING TO THE
EAST NORTHEAST AT 40MPH.
PEOPLE IN SL LIBORY AND ARCHER SHOULD SEEK SHELTER IMMEDIATLY.

IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER IN A BASEMENT
OR BELOW GROUND.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR.  ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING.

IN ADDITION TO THE THREAT OF A TORNADO...LARGE HAIL...VERY HEAVY
RAIN AND DANGEROUS LIGsHTNING ARE LIKLEY WITH THIS STORM.

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.

In the hours before

Local storm report, Jun 12, 10:25 PM CDT, 26 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
1025 PM CDT TUE JUN 12 1990

CIVIL DEFENSE AT LOUP CITY...IN SHERMAN COUNTY NEBRASKA...HAD A REPORT
FROM A SPOTTER 10 MILES SOUTH OF LOUP CITY OF HAILC MARBLE TO GOLFBALL
SIZE IN DRIFTS...NO SIZE OF DRIFTS.  REPORT WAS AT 1023 PM.
DGS
Local storm report, Jun 12, 10:31 PM CDT, 20 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GRAND ISLAND NE
1031 PM CDT TUE JUN 12 1990

1030 PM CDT STORM SPOTTER AT ROCKVILLE IN SOUTHEAST SHERMAN COUNTY
NEBRASKA REPORTED HAIL MARBLE TO NEAR GOLFBALL SIZE COKVERING THE
GROUND.  VERY HEAVY RAIN BUT NO AMOUNT YET MEASURED.
DGS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:20 PM CDTSevere Thunderstorm WarningGIDBuffalo, Hall25 min
Jun 12, 8:21 PM CDTTornado WarningGIDMerrick, Nance39 min
Jun 12, 9:08 PM CDTSevere Thunderstorm WarningGIDDawson22 min
Jun 12, 9:36 PM CDTSevere Thunderstorm WarningGIDGreeley, Howard, Sherman54 min
Jun 12, 9:42 PM CDTTornado WarningGIDBuffalo, Dawson33 min
Jun 12, 10:02 PM CDTTornado WarningGIDBuffalo, Howard, Sherman43 min
Jun 12, 10:22 PM CDTTornado WarningGIDNance53 min
Jun 12, 10:41 PM CDTSevere Thunderstorm WarningGIDHoward34 min
Jun 12, 11:10 PM CDTTornado WarningGIDMerrick35 min

Nearby

Tornado Warnings in Nebraska, 1990Every tornado warning in 1990Tornadoes in 1990

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.