Alert archive / Nebraska / Tornado Warnings in 1998

Tornado Warning 50, NWS Omaha, NE

June 23, 1998Cuming County, Stanton County, Wayne County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 23, 1998, 7:45 PM CDT for Cuming County, Stanton County, Wayne County, Nebraska. It was in force for 45 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 23, 1998, 7:45 PM CDT (00:45 UTC)
Expired
Jun 23, 1998, 8:30 PM CDT
In force
45 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Cuming County, NE, Stanton County, NE, Wayne County, NE

The radar

The Omaha radar (KOAX), 95 km from the middle of the area, began a volume at 00:48 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 23, 7:15 PM CDTTornado WatchSPC6 hr
Jun 23, 7:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 313 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, N. Platte/Lee Bi, NE at 00:00Z on 1998-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1938 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, N. Platte/Lee Bi, NE at 00:00Z on 1998-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
1938 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1197 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 240045 RRA
TOROMA
NEC039-167-179-240130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
745 PM CDT TUE JUN 23 1998

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  WAYNE COUNTY IN NORTHEASTERN NEBRASKA
  STANTON COUNTY IN NORTHEASTERN NEBRASKA
  WESTERN CUMING COUNTY IN NORTHEASTERN NEBRASKA

* UNTIL 830 PM CDT

* AT 741 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A DEVELOPING TORNADO 12 MILES EAST OF NORFOLK OR 9 MILES WEST
  SOUTHWEST OF ALTONA MOVING NORTHEAST AT 30 MPH.  A TORNADO WAS
  ALSO REPORTED ON THE GROUND 3 MILES SOUTH LEIGH MOVING NORTHEAST AT
  25 MPH.  ANOTHER TORNADO WAS REPORTED 10 MILES SOUTH OF HIGHWAY 91
  IN COLFAX COUNTY.

* THE TORNADO IS EXPECTED TO BE NEAR...
  WINSIDE                      AT 755 PM CDT
  ALTONA                       AT 755 PM 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.

&
MEAD

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 23, 5:05 PM CDT, 2 hours 40 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093-
IAZ043-055-056-069-079-080-090-091-241200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
505 PM CDT TUE JUN 23 1998

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

SPOTTER ACTION...
STORM SPOTTER ACTIVATION MAY BE REQUIRED TONIGHT IN EASTERN NEBRASKA
AND SOUTHWEST IOWA.

DISCUSSION...
THERE IS A CHANCE FOR THUNDERSTORMS TONIGHT IN EASTERN NEBRASKA AND
SOUTHWEST IOWA AS VERY MOIST AND UNSTABLE AIR CONTINUES TO MOVE ACROSS
THE REGION AS A WARM FRONT FROM SOUTH CENTRAL NEBRASKA THROUGH NORTHEAST
KANSAS AND NORTH MISSOURI LIFTS NORTH.

DUE TO THE DEGREE OF INSTABILITY AND WIND SHEAR CONSIDERATIONS...SOME
OF THESE STORMS COULD TURN SEVERE WITH LARGE HAIL...DAMAGING WINDS AND
ISOLATED TORNADOES.

IN ADDITION TO THE THREAT OF SEVERE WEATHER...DUE TO THE VERY MOIST
NATURE OF THE ATMOSPHERE...THE THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY
RAINS.

GW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 7:01 PM CDTTornado WarningOAXColfax, Platte34 min
Jun 23, 7:24 PM CDTTornado WarningOAXThurston51 min
Jun 23, 7:28 PM CDTSevere Thunderstorm WarningOAXCuming, Wayne62 min
Jun 23, 7:30 PM CDTSevere Thunderstorm WarningOAXKnox65 min
Jun 23, 7:32 PM CDTSevere Thunderstorm WarningOAXSaline48 min
Jun 23, 7:37 PM CDTTornado WarningOAXColfax, Platte33 min
Jun 23, 7:56 PM CDTTornado WarningOAXDodge49 min
Jun 23, 8:07 PM CDTTornado WarningOAXCuming48 min
Jun 23, 8:19 PM CDTSevere Thunderstorm WarningOAXPlatte66 min
Jun 23, 8:24 PM CDTSevere Thunderstorm WarningOAXButler, Saline, Seward61 min
Jun 23, 8:26 PM CDTTornado WarningOAXBurt, Washington49 min
Jun 23, 8:31 PM CDTSevere Thunderstorm WarningOAXCedar49 min
Jun 23, 8:43 PM CDTTornado WarningOAXDodge32 min
Jun 23, 8:48 PM CDTSevere Thunderstorm WarningOAXLancaster, Saunders62 min
Jun 23, 8:53 PM CDTSevere Thunderstorm WarningOAXCuming47 min
Jun 23, 9:09 PM CDTTornado WarningOAXPlatte36 min
Jun 23, 9:14 PM CDTSevere Thunderstorm WarningOAXBurt, Dodge, Washington61 min
Jun 23, 9:19 PM CDTFlash Flood WarningOAXCuming, Dodge5 hr
Jun 23, 9:22 PM CDTSevere Thunderstorm WarningOAXColfax48 min
Jun 23, 9:39 PM CDTSevere Thunderstorm WarningOAXCuming, Stanton61 min
Jun 23, 9:53 PM CDTFlash Flood WarningOAXBurt6 hr
Jun 23, 10:05 PM CDTTornado WarningOAXWashington35 min
Jun 23, 10:11 PM CDTSevere Thunderstorm WarningOAXBurt64 min
Jun 23, 10:21 PM CDTTornado WarningOAXBurt29 min
Jun 23, 10:26 PM CDTSevere Thunderstorm WarningOAXCedar34 min
Jun 23, 10:35 PM CDTSevere Thunderstorm WarningOAXGage45 min
Jun 24, 12:37 AM CDTSevere Thunderstorm WarningOAXPawnee48 min
Jun 24, 1:04 AM CDTSevere Thunderstorm WarningOAXRichardson36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.