Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 20, NWS Omaha, NE

August 3, 1997Saline County, Seward County, Nebraska

NWS Omaha, NE issued this tornado warning at Aug 3, 1997, 7:06 PM CDT for Saline County, Seward County, Nebraska. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 3, 1997, 7:06 PM CDT (00:06 UTC)
Expired
Aug 3, 1997, 7:35 PM CDT
In force
29 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Saline County, NE, Seward County, NE

The radar

The Omaha radar (KOAX), 95 km from the middle of the area, began a volume at 00:06 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.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.1 hours before the alert went out and 95 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 1997-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4133 joules per kilogram.LCLEL10008507005003002001001 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 1997-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
4133 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1275 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 040007 RRA
TOROMA
NEC151-159-040035-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
706 PM CDT SUN AUG 3 1997

* TORNADO WARNING FOR
  SOUTHERN SEWARD COUNTY - IN SOUTHEASTERN NEBRASKA
  NORTHERN SALINE COUNTY - IN SOUTHEASTERN NEBRASKA

* UNTIL 735 PM CDT
 
* SOME LOCATIONS AFFECTED
  MILFORD
  FRIEND
  DORCHESTER

* AT 704 PM CDT STORM SPOTTERS REPORTED A FUNNEL CLOUD  5 TO 10
MILES SOUTHWEST OF SEWARD.  MOVEMENT OF THE THUNDERSTORM PRODUSING
THIS FUNNEL CLOUD WAS SOUTHEAST AT 10 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.

&
GW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 7:58 PM CDTSevere Thunderstorm WarningOAXLancaster47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.