Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 8, NWS Omaha, NE

June 20, 1997Dodge County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 20, 1997, 11:22 PM CDT for Dodge County, Nebraska. It was in force for 48 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
Jun 20, 1997, 11:22 PM CDT (04:22 UTC)
Expired
Jun 21, 1997, 12:10 AM CDT
In force
48 min
Issued by
NWS Omaha, NE
Area
Whole counties

County Dodge County, NE

The radar

The Omaha radar (KOAX), 37 km from the middle of the area, began a volume at 04:23 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 20, 8:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 4.4 hours before the alert went out and 37 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 1997-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5994 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 1997-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.193958Sfc1 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
5994 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1151 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
4.8
Supercell composite
25.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 210422 RRA
TOROMA
NEC053-210510-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1122 PM CDT FRI JUN 20 1997

* TORNADO WARNING FOR
  DODGE COUNTY - IN EAST CENTRAL NEBRASKA

* UNTIL 1210 AM CDT
 
* THE FOLLOWING LOCATION IS IN THE PATH OF THIS TORNADO
  NORTH BEND                   BY AROUND 1140 PM CDT

* AT 1111 PM CDT...A DEVELOPING TORNADO WAS INDICATED BY DOPPLER
  RADAR 23 MILES EAST OF COLUMBUS OR 7 MILES WEST NORTHWEST OF NORTH
  BEND MOVING EAST NORTHEAST AT 30 MPH.
 
TAKE COVER IN A REINFORCED BUILDING ON THE LOWEST FLOOR IMMEDIATELY.
STAY AWAY FROM WINDOWS.  DAMAGE REPORTS OR OBSERVED SEVERE WEATHER
SHOULD BE GIVEN TO A LAW ENFORCEMENT AGENCY FORD RELAY TO THE NATIONAL
WEATHER SERVICE.


FOBERT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:08 PM CDTSevere Thunderstorm WarningOAXDodge, Saunders47 min
Jun 20, 7:31 PM CDTSevere Thunderstorm WarningOAXButler, Colfax49 min
Jun 20, 7:35 PM CDTSevere Thunderstorm WarningOAXBurt, Washington50 min
Jun 20, 7:54 PM CDTSevere Thunderstorm WarningOAXDodge, Saunders46 min
Jun 20, 8:25 PM CDTSevere Thunderstorm WarningOAXBurt50 min
Jun 20, 8:35 PM CDTSevere Thunderstorm WarningOAXThurston50 min
Jun 20, 8:43 PM CDTSevere Thunderstorm WarningOAXCuming, Dodge47 min
Jun 20, 8:48 PM CDTSevere Thunderstorm WarningOAXBoone62 min
Jun 20, 9:12 PM CDTSevere Thunderstorm WarningOAXAntelope63 min
Jun 20, 9:24 PM CDTSevere Thunderstorm WarningOAXCuming, Stanton51 min
Jun 20, 9:40 PM CDTSevere Thunderstorm WarningOAXMadison, Pierce50 min
Jun 20, 10:09 PM CDTTornado WarningOAXCuming51 min
Jun 20, 10:56 PM CDTSevere Thunderstorm WarningOAXBurt64 min
Jun 20, 11:42 PM CDTSevere Thunderstorm WarningOAXButler, Seward58 min
Jun 20, 11:48 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Lancaster, Saline62 min
Jun 21, 12:08 AM CDTFlash Flood WarningOAXBurt, Cuming, Dodge6 hr
Jun 21, 12:17 AM CDTSevere Thunderstorm WarningOAXSaunders63 min
Jun 21, 1:05 AM CDTSevere Thunderstorm WarningOAXCass, Sarpy60 min
Jun 21, 1:11 AM CDTTornado WarningOAXSarpy34 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.