Alert archive / Nebraska / Tornado Warnings in 1998

Tornado Warning 67, NWS Omaha, NE

June 29, 1998Cuming County, Thurston County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 29, 1998, 11:29 AM CDT for Cuming County, Thurston County, Nebraska. It was in force for 46 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 29, 1998, 11:29 AM CDT (16:29 UTC)
Expired
Jun 29, 1998, 12:15 PM CDT
In force
46 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Cuming County, NE, Thurston County, NE

The radar

The Omaha radar (KOAX), 83 km from the middle of the area, began a volume at 16:28 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 29, 11:45 AM CDTThunderstorm Wind 65Pender, 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 29, 11:15 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 4.5 hours before the alert went out and 83 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 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2006 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, Omaha, NE at 12:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
2006 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 291629 RRA
TOROMA
NEC039-173-291715-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1129 AM CDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  THURSTON COUNTY IN NORTHEASTERN NEBRASKA
  NORTHERN CUMING COUNTY IN NORTHEASTERN NEBRASKA

* UNTIL 1215 PM CDT

* AT 1126 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A POSSIBLE TORNADO 22 MILES EAST NORTHEAST OF NORFOLK OR 15 MILES
  WEST OF PENDER MOVING EAST SOUTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  PENDER                       AT 1135 AM CDT
  WISNER                       AT 1140 AM CDT
  BANCROFT                     AT 1145 AM CDT
  ROSALIE                      AT 1150 AM CDT

IF YOU ARE IN THE WARNED AREA...TAKE SHELTER IN A BASEMENT IF ONE
IS AVAILABLE.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.  CARS AND MOBILE HOMES SHOULD BE ABANDONED.

SMITHd

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

Special weather statement, Jun 29, 5:45 AM CDT, 5 hours 44 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-301200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
545 AM CDT MON JUN 29 1998

...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA...

SPOTTER ACTION...
STORM SPOTTER ACTIVATION MAY BE NEEDED IN EASTERN NEBRASKA AND
SOUTHWEST IOWA TODAY INTO THIS EVENING.

DISCUSSION...
A WARM FRONT ACROSS NORTHERN KANSAS INTO NORTHERN MISSOURI WILL MOVE
SLOWLY NORTH TODAY. IN ADDITION A COOL FRONT WILL MOVE ACROSS THE AREA
LATER THIS AFTERNOON INTO TONIGHT FROM THE NORTHWEST.

MOIST AND UNSTABLE AIR INTERACTING WITH THESE FRONTS WILL RESULT IN
AREAS OF THUNDERSTORM DEVELOPMENT. DUE TO HIGH INSTABILITY IN THE
ATMOSPHERE ALONG WITH LOW LEVEL WIND SHEAR...SOME OF THE THUNDERSTORMS
MAY TURN SEVERE WITH LARGE HAIL...DAMAGING WINDS AND ISOLATED
TORNADOES. HEAVY RAINFALL IS ALSO A THREAT DUE TO THE HIGH ATMOSPHERIC
WATERj CONTENT.

GW
Special weather statement, Jun 29, 5:45 AM CDT, 5 hours 44 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-301200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
545 AM CDT MON JUN 29 1998

...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA...

SPOTTER ACTION...
STORM SPOTTER ACTIVATION MAY BE NEEDED IN EASTERN NEBRASKA AND
SOUTHWEST IOWA TODAY INTO THIS EVENING.

DISCUSSION...
A WARM FRONT ACROSS NORTHERN KANSAS INTO NORTHERN MISSOURI WILL MOVE
SLOWLY NORTH TODAY. IN ADDITION A COOL FRONT WILL MOVE ACROSS THE AREA
LATER THIS AFTERNOON INTO TONIGHT FROM THE NORTHWEST.

MOIST AND UNSTABLE AIR INTERACTING WITH THESE FRONTS WILL RESULT IN
AREAS OF THUNDERSTORM DEVELOPMENT. DUE TO HIGH INSTABILITY IN THE
ATMOSPHERE ALONG WITH LOW LEVEL WIND SHEAR...SOME OF THE THUNDERSTORMS
MAY TURN SEVERE WITH LARGE HAIL...DAMAGING WINDS AND ISOLATED
TORNADOES. HEAVY RAINFALL IS ALSO A THREAT DUE TO THE HIGH ATMOSPHERIC
WATERj CONTENT.

GW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 9:48 PM CDTSevere Thunderstorm WarningOAXRichardson32 min
Jun 28, 11:21 PM CDTSevere Thunderstorm WarningOAXPawnee49 min
Jun 28, 11:51 PM CDTSevere Thunderstorm WarningOAXRichardson49 min
Jun 28, 11:55 PM CDTFlash Flood WarningOAXRichardson6 hr
Jun 29, 12:22 AM CDTSevere Thunderstorm WarningOAXGage48 min
Jun 29, 9:51 AM CDTSevere Thunderstorm WarningOAXKnox64 min
Jun 29, 10:31 AM CDTTornado WarningOAXKnox34 min
Jun 29, 10:42 AM CDTTornado WarningOAXCedar, Pierce48 min
Jun 29, 11:05 AM CDTTornado WarningOAXWayne50 min
Jun 29, 11:57 AM CDTTornado WarningOAXBurt48 min
Jun 29, 3:25 PM CDTSevere Thunderstorm WarningOAXButler, Seward50 min
Jun 29, 3:39 PM CDTTornado WarningOAXSeward51 min
Jun 29, 4:08 PM CDTTornado WarningOAXLancaster, Saline62 min
Jun 29, 4:39 PM CDTSevere Thunderstorm WarningOAXGage61 min
Jun 29, 4:56 PM CDTSevere Thunderstorm WarningOAXOtoe49 min
Jun 29, 5:06 PM CDTSevere Thunderstorm WarningOAXJohnson49 min

Nearby

Tornado Warnings in Nebraska, 1998Every tornado warning in 1998Tornadoes in 1998

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.