Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 90, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 19, 1996, 2:28 PM CDT for Knox County, Nebraska. It was in force for 62 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 19, 1996, 2:28 PM CDT (19:28 UTC)
- Expired
- Jun 19, 1996, 3:30 PM CDT
- In force
- 62 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Knox County, NE
The radar
The Sioux Falls radar (KFSD), 142 km from the middle of the area, began a volume at 19:27 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 19, 3:30 PM CDT | Tornado F0 | Verdigre, 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 nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 7.5 hours before the alert went out and 193 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
- 1611 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.2
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 19, 12:08 PM CDT, 2 hours 20 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-201200- SPECIAL WEATHER STATEMENT...RETRANSMITTED NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1140 AM CDT WED JUN 19 1996 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND INTO TONIGHT ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF THE AREA. SOUTHEAST WINDS WILL CONTINUE TO PUMP WARM AND UNSTABLE AIR INTO THE AREA. A COLD FRONT WILL BE MOVING ACROSS NEBRASKA THROUGH THURSDAY MORNING. ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ARE POSSIBLE AFTER 4 PM CDT. HOWEVER...WARM AIR ALOFT MAY INHIBIT THUNDERSTORM DEVELOPMENT ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA DURING THE AFTERNOON HOURS. THE MOST LIKELY TIME FOR SEVERE WEATHER IS BETWEEN 7 PM AND 2 AM CDT...WHEN THUNDERSTORMS MAY MOVE IN FROM THE WEST OR NORTHWEST. THE THREAT SHOULD BE ON THE DECREASE LATE TONIGHT. HEAVY RAIN IS POSSIBLE... ESPECIALLY IN NORTHEAST NEBRASKA. MILLER
Special weather statement, Jun 19, 1:41 PM CDT, 47 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-201200- SPECIAL WEATHER STATEMENT...UPDATED NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 140 PM CDT WED JUN 19 1996 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION WILL LIKELY BE NEEDED IN NORTHEAST NEBRASKA THIS AFTERNOON. SPOTTER ACTIVATION MAY BE NEEDED FROM LATE THIS AFTERNOON INTO THE EVENING OVER THE REST OF EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF THE AREA. SOUTHEAST WINDS WILL CONTINUE TO PUMP WARM AND UNSTABLE AIR INTO THE REGION. A COLD FRONT WILL BE MOVING ACROSS NEBRASKA THROUGH THURSDAY MORNING. SEVERE THUNDERSTORMS ARE POSSIBLE OVER NORTHEAST NEBRASKA THIS AFTERNOON AND EARLY THIS EVENING...MAINLY WEST OF A LINE FROM SIOUX CITY TO COLUMBUS. ONCE STORMS DEVELOP...THEY SHOULD RAPIDLY BECOME SEVERE. THUNDERSTORMS MAY MOVE INTO THE REST OF EASTERN NEBRASKA AND SOUTHWEST IOWA THIS EVENING AND TONIGHT. IN ADDITION TO THE THREAT OF SEVERE WEATHER...AREAS OF HEAVY RAIN ARE POSSIBLE. MILLER
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 3:21 PM CDT | Tornado Warning | OAX | Antelope, Knox | 54 min |
| Jun 19, 3:53 PM CDT | Tornado Warning | OAX | Antelope | 52 min |
| Jun 19, 4:21 PM CDT | Tornado Warning | OAX | Madison, Pierce | 54 min |
| Jun 19, 4:58 PM CDT | Tornado Warning | OAX | Stanton, Wayne | 47 min |
| Jun 19, 5:16 PM CDT | Tornado Warning | OAX | Madison | 14 min |
| Jun 19, 5:23 PM CDT | Severe Thunderstorm Warning | OAX | Stanton | 52 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1996Every severe thunderstorm warning in 1996
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.