Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 190, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 23, 1998, 6:49 PM CDT for Thurston County, Wayne County, Nebraska. It was in force for 31 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 23, 1998, 6:49 PM CDT (23:49 UTC)
- Expired
- Jun 23, 1998, 7:20 PM CDT
- In force
- 31 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Thurston County, NE, Wayne County, NE
The radar
The Omaha radar (KOAX), 103 km from the middle of the area, began a volume at 23:51 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 23, 7:15 PM CDT | Tornado F0 | Macy, NE | Tornado touched down in Missouri river bluffs. |
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 nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.8 hours before the alert went out and 103 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.
- Mixed-layer CAPE
- 407 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 1041 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, 1 hour 44 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-241200- 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 6:38 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Platte, Stanton | 62 min |
| Jun 23, 6:56 PM CDT | Tornado Warning | OAX | Cuming, Thurston | 34 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1998Every severe thunderstorm warning 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.