Alert archive / Nebraska / Tornado Warnings in 1998

Tornado Warning 68, NWS Omaha, NE

June 29, 1998Burt County, Nebraska

NWS Omaha, NE issued this tornado warning at Jun 29, 1998, 11:57 AM CDT for Burt County, Nebraska. It was in force for 48 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, 11:57 AM CDT (16:57 UTC)
Expired: Jun 29, 1998, 12:45 PM CDT
In force: 48 min
Issued by: NWS Omaha, NE
Area: Whole counties

County Burt County, NE

The radar

The Omaha radar (KOAX), 59 km from the middle of the area, began a volume at 17:01 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

Time	Report	Where	Remark
Jun 29, 12:12 PM CDT	Hail 0.75	Decatur, 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.

Issued	Product	Office	Lasted
Jun 29, 11:15 AM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 5.0 hours before the alert went out and 59 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 291657 RRA
TOROMA
NEC021-291745-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1157 AM CDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* TORNADO WARNING FOR...
  BURT COUNTY IN EAST CENTRAL NEBRASKA

* UNTIL 1245 PM CDT

* AT 1155 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A POSSIBLE TORNADO 33 MILES SOUTH SOUTHWEST OF SIOUX CITY OR 8
  MILES NORTH NORTHWEST OF LYONS MOVING EAST SOUTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LYONS                        AT 1155 AM CDT
  DECATUR                      AT 1205 PM CDT
  TEKAMAH                      AT 1215 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.

ZAPOTOCNY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 9:48 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	32 min
Jun 28, 11:21 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee	49 min
Jun 28, 11:51 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	49 min
Jun 28, 11:55 PM CDT	Flash Flood Warning	OAX	Richardson	6 hr
Jun 29, 12:22 AM CDT	Severe Thunderstorm Warning	OAX	Gage	48 min
Jun 29, 9:51 AM CDT	Severe Thunderstorm Warning	OAX	Knox	64 min
Jun 29, 10:31 AM CDT	Tornado Warning	OAX	Knox	34 min
Jun 29, 10:42 AM CDT	Tornado Warning	OAX	Cedar, Pierce	48 min
Jun 29, 11:05 AM CDT	Tornado Warning	OAX	Wayne	50 min
Jun 29, 11:29 AM CDT	Tornado Warning	OAX	Cuming, Thurston	46 min
Jun 29, 3:25 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Seward	50 min
Jun 29, 3:39 PM CDT	Tornado Warning	OAX	Seward	51 min
Jun 29, 4:08 PM CDT	Tornado Warning	OAX	Lancaster, Saline	62 min
Jun 29, 4:39 PM CDT	Severe Thunderstorm Warning	OAX	Gage	61 min
Jun 29, 4:56 PM CDT	Severe Thunderstorm Warning	OAX	Otoe	49 min
Jun 29, 5:06 PM CDT	Severe Thunderstorm Warning	OAX	Johnson	49 min

Nearby

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