Alert archive / Nebraska / Tornado Warnings in 1988

Tornado Warning 2, NWS Hastings, NE

July 7, 1988Polk County, Nebraska

NWS Hastings, NE issued this tornado warning at Jul 7, 1988, 3:09 PM CDT for Polk County, Nebraska. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jul 7, 1988, 3:09 PM CDT (20:09 UTC)
Expired
Jul 7, 1988, 3:40 PM CDT
In force
31 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Polk County, NE

The radar

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

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 8.2 hours before the alert went out and 101 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 12:00Z on 1988-07-07Temperature 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 12:00Z on 1988-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3625 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
65 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 072009
TORGRI
NEC143-185-072045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE GRAND ISLAND NE
309 PM CDT THU JUL 7 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF NEBRASKA
      POLK...

   IN THE EAST CENTRAL PART OF NEBRASKA
      NORTHWEST YORK...

AT 300 PM A POSSIBLE TORNADO WAS INDICATED BY RADAR JUST SOUTH OF
POLK MOVING TO THE NORTHEAST AT 25MPH.  THIS WARNING INCLUDES THE
CITY OF POLK AND STROMSBURG.

IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER IN A BASEMENT
OR BELOW GROUND.  OTHERWISE GO TO A SMALL INTER3IOR ROOM ON THE
LOWEST FLOOR.  ABANDON CARS AND MOBILE HOMES FOR A REINFORCED
BUILDING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:09 PM CDTTornado WarningGIDYork36 min
Jul 7, 3:38 PM CDTSevere Thunderstorm WarningGIDClay, Hamilton, Nuckolls67 min
Jul 7, 4:10 PM CDTSevere Thunderstorm WarningGIDHamilton, Merrick, Polk65 min
Jul 7, 4:53 PM CDTFlash Flood WarningGIDAdams, Hall, Hamilton3 hr
Jul 7, 4:53 PM CDTFlash Flood WarningGIDMerrick3 hr

Nearby

Tornado Warnings in Nebraska, 1988Every tornado warning in 1988Tornadoes in 1988

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.