Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 340, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Oct 4, 1998, 6:50 PM CDT for Cass County, Otoe County, Nebraska. It was in force for 35 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
- Oct 4, 1998, 6:50 PM CDT (23:50 UTC)
- Expired
- Oct 4, 1998, 7:25 PM CDT
- In force
- 35 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Cass County, NE, Otoe County, NE
The radar
The Omaha radar (KOAX), 63 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.8 hours before the alert went out and 63 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 557 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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
Local storm report, Oct 4, 1:01 PM CDT, 5 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
101 PM CDT SUN OCT 04 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1110 AM ELKHORN NE 1.25 INCH HAIL
10/04/98 DOUGLAS
1114 AM UEHLING NE 1.75 INCH HAIL
10/04/98 DODGE
1125 AM 3 WSW BENNINGTON NE 1 INCH HAIL
10/04/98 DOUGLAS
1130 AM 3 W ELKHORN NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM DOUGLAS NE 1 INCH HAIL
10/04/98 OTOE
ZAPOTOCNYLocal storm report, Oct 4, 1:01 PM CDT, 5 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
101 PM CDT SUN OCT 04 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1110 AM ELKHORN NE 1.25 INCH HAIL
10/04/98 DOUGLAS
1114 AM UEHLING NE 1.75 INCH HAIL
10/04/98 DODGE
1125 AM 3 WSW BENNINGTON NE 1 INCH HAIL
10/04/98 DOUGLAS
1130 AM 3 W ELKHORN NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM DOUGLAS NE 1 INCH HAIL
10/04/98 OTOE
ZAPOTOCNYLocal storm report, Oct 4, 1:39 PM CDT, 5 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED 3W ELKHORN REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
139 PM CDT SUN OCT 04 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1110 AM ELKHORN NE 1.25 INCH HAIL
10/04/98 DOUGLAS
1114 AM UEHLING NE 1.75 INCH HAIL
10/04/98 DODGE
1125 AM 3 WSW BENNINGTON NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM 3 W ELKHORN NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM DOUGLAS NE 1 INCH HAIL
10/04/98 OTOE
ZAPOTOCNYLocal storm report, Oct 4, 1:39 PM CDT, 5 hours 11 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED 3W ELKHORN REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
139 PM CDT SUN OCT 04 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1110 AM ELKHORN NE 1.25 INCH HAIL
10/04/98 DOUGLAS
1114 AM UEHLING NE 1.75 INCH HAIL
10/04/98 DODGE
1125 AM 3 WSW BENNINGTON NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM 3 W ELKHORN NE 1 INCH HAIL
10/04/98 DOUGLAS
1230 PM DOUGLAS NE 1 INCH HAIL
10/04/98 OTOE
ZAPOTOCNYSpecial weather statement, Oct 4, 4:30 PM CDT, 2 hours 20 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-051200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 430 PM CDT SUN OCT 4 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTERS ARE LIKELY TO BE REQUIRED OVER EASTERN NEBRASKA AND SOUTHWEST IOWA INTO THE NIGHT. DISCUSSION... A STRONG STORM CIRCULATION OVER THE CENTRAL AND SOUTHERN PLAINS HAS RECEIVED FURTHER SUPPORT THIS AFTERNOON FROM THE JET STREAM FROM THE SOUTHWEST. THERE IS A THREAT FOR MORE SEVERE WEATHER ACROSS EASTERN NEBRASKA THIS EVENING...POSSIBLY SPREADING INTO SOUTHWEST IOWA AS THE EVENING PROGRESSES. BRASKA AND SOUTHWEST IOWA ALSO. IN ADDITION TO THE THREAT OF SEVERE WEATHER...THE THUNDERSTORMS COULD CAUSE SOME LOCAL FLOODING FROM HEAVY RAINS...ESPECIALLY IN SOUTHEAST NEBRASKA WHERE HEAVIER RAINS HAVE OCCURRED PERIODICALLY OVER THE LAST COUPLE OF WEEKS. THE PRIMARY SEVERE WEATHER THREAT...BESIDES THE RAIN...IS FOR LARGE HAIL...BUT DAMAGING WINDS AND EVEN TORNADOES ARE POSSIBLE. POWERS
Special weather statement, Oct 4, 4:30 PM CDT, 2 hours 20 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-051200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 430 PM CDT SUN OCT 4 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTERS ARE LIKELY TO BE REQUIRED OVER EASTERN NEBRASKA AND SOUTHWEST IOWA INTO THE NIGHT. DISCUSSION... A STRONG STORM CIRCULATION OVER THE CENTRAL AND SOUTHERN PLAINS HAS RECEIVED FURTHER SUPPORT THIS AFTERNOON FROM THE JET STREAM FROM THE SOUTHWEST. THERE IS A THREAT FOR MORE SEVERE WEATHER ACROSS EASTERN NEBRASKA THIS EVENING...POSSIBLY SPREADING INTO SOUTHWEST IOWA AS THE EVENING PROGRESSES. BRASKA AND SOUTHWEST IOWA ALSO. IN ADDITION TO THE THREAT OF SEVERE WEATHER...THE THUNDERSTORMS COULD CAUSE SOME LOCAL FLOODING FROM HEAVY RAINS...ESPECIALLY IN SOUTHEAST NEBRASKA WHERE HEAVIER RAINS HAVE OCCURRED PERIODICALLY OVER THE LAST COUPLE OF WEEKS. THE PRIMARY SEVERE WEATHER THREAT...BESIDES THE RAIN...IS FOR LARGE HAIL...BUT DAMAGING WINDS AND EVEN TORNADOES ARE POSSIBLE. POWERS
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 7:48 AM CDT | Severe Thunderstorm Warning | OAX | Madison, Platte | 47 min |
| Oct 4, 8:07 AM CDT | Severe Thunderstorm Warning | OAX | Pierce, Wayne | 33 min |
| Oct 4, 10:50 AM CDT | Severe Thunderstorm Warning | OAX | Cass, Otoe | 35 min |
| Oct 4, 10:58 AM CDT | Severe Thunderstorm Warning | OAX | Burt, Dodge | 32 min |
| Oct 4, 11:20 AM CDT | Severe Thunderstorm Warning | OAX | Douglas, Washington | 35 min |
| Oct 4, 11:34 AM CDT | Severe Thunderstorm Warning | OAX | Burt | 36 min |
| Oct 4, 11:46 AM CDT | Severe Thunderstorm Warning | OAX | Douglas, Sarpy | 34 min |
| Oct 4, 11:46 AM CDT | Severe Thunderstorm Warning | OAX | Cass | 34 min |
| Oct 4, 12:21 PM CDT | Severe Thunderstorm Warning | OAX | Otoe | 34 min |
| Oct 4, 12:30 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Sarpy | 30 min |
| Oct 4, 12:45 PM CDT | Severe Thunderstorm Warning | OAX | Washington | 35 min |
| Oct 4, 12:45 PM CDT | Severe Thunderstorm Warning | OAX | Douglas | 35 min |
| Oct 4, 2:50 PM CDT | Severe Thunderstorm Warning | OAX | Seward | 35 min |
| Oct 4, 2:57 PM CDT | Severe Thunderstorm Warning | OAX | Boone | 33 min |
| Oct 4, 3:06 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 34 min |
| Oct 4, 4:30 PM CDT | Tornado Warning | OAX | Jefferson, Saline | 50 min |
| Oct 4, 5:23 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster, Saline | 47 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.