Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 243, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 29, 1998, 5:06 PM CDT for Johnson County, Nebraska. It was in force for 49 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 29, 1998, 5:06 PM CDT (22:06 UTC)
- Expired
- Jun 29, 1998, 5:55 PM CDT
- In force
- 49 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Johnson County, NE
The radar
The Omaha radar (KOAX), 103 km from the middle of the area, began a volume at 22:08 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 3:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.1 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
- 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
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 29, 1:25 PM CDT, 3 hours 41 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-292000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 125 PM CDT MON JUN 29 1998 .2..TORNADO WATCH 699 HAS BEEN CANCELLED... THE THREAT FOR SEVERE WEATHER HAS SHIFTED INTO IOWA...OUT OF THE AREA COVERED BY TORNADO WATCH 699...HOWEVER...TORNADO WATCH 700 CONTINUES FOR PARTS OF SOUTHWEST IOWA UNTIL 5PM CDT. ZAPOTOCNY
Special weather statement, Jun 29, 1:25 PM CDT, 3 hours 41 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-292000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 125 PM CDT MON JUN 29 1998 .2..TORNADO WATCH 699 HAS BEEN CANCELLED... THE THREAT FOR SEVERE WEATHER HAS SHIFTED INTO IOWA...OUT OF THE AREA COVERED BY TORNADO WATCH 699...HOWEVER...TORNADO WATCH 700 CONTINUES FOR PARTS OF SOUTHWEST IOWA UNTIL 5PM CDT. 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, 11:57 AM CDT | Tornado Warning | OAX | Burt | 48 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, 12:03 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 47 min |
| Jun 29, 12:30 PM CDT | Severe Thunderstorm Warning | OAX | Harrison | 60 min |
| Jun 29, 12:45 PM CDT | Tornado Warning | OAX | Shelby | 35 min |
| Jun 29, 4:46 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 34 min |
| Jun 29, 5:36 PM CDT | Severe Thunderstorm Warning | OAX | Page | 49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.