Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 210, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 1998, 8:47 PM CDT for Jefferson County, Nebraska. It was in force for 48 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 24, 1998, 8:47 PM CDT (01:47 UTC)
- Expired
- Jun 24, 1998, 9:35 PM CDT
- In force
- 48 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Jefferson County, NE
The radar
The Grand Island radar (KUEX), 111 km from the middle of the area, began a volume at 01:46 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 24, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.8 hours before the alert went out and 184 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
- 2285 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1842 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.2
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 24, 5:13 PM CDT, 3 hours 34 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-251200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 513 PM CDT WED JUN 24 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING OR TONIGHT IN EASTERN NEBRASKA AND SOUTHWEST IOWA. DISCUSSION... LATE THIS AFTERNOON...AN AREA OF LOW PRESSURE WAS OVER CENTRAL NEBRASKA WITH A WARM FRONT EXTENDING EAST ACROSS NORTHEASTERN NEBRASKA AND WESTERN IOWA. A DRYLINE ALSO EXTENDED SOUTH FROM THE SURFACE LOW INTO CENTRAL KANSAS. THUNDERSTORMS HAVE DEVELOPED OVER NORTH CENTRAL NEBRASKA THIS AFTERNOON AND ARE EXPECTED TO MOVE NORTHEAST ALONG THE WARM FRONT TONIGHT. THEREFORE...THE GREATEST RISK OF SEVERE WEATHER WILL BE OVER THE NORTHEASTERN PART OF THE OUTLOOK AREA...GENERALLY NORTH OF A NORFOLK TO PENDER TO ONAWA IOWA LINE. FARTHER SOUTH ALONG THE DRYLINE...WARM TEMPERATURES IN THE UPPER LEVELS OF THE ATMOSPHERE ARE EXPECTED TO LIMIT THUNDERSTORM ACTIVITY. HOWEVER...IF THUNDERSTORMS ARE ABLE TO DEVELOP...THEY WILL HAVE A GOOD CHANCE OF BECOMING SEVERE. LARGE HAIL AND DAMAGING WINDS WILL BE THE GREATEST THREAT FROM THESE STORMS...BUT A FEW TORNADOES WILL BE POSSIBLE...ESPECIALLY WITH STORMS MOVING ALONG THE WARM FRONT. MEAD
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 7:46 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Knox | 64 min |
| Jun 24, 7:53 PM CDT | Tornado Warning | OAX | Knox | 62 min |
| Jun 24, 9:46 PM CDT | Severe Thunderstorm Warning | OAX | Butler | 49 min |
| Jun 24, 9:56 PM CDT | Severe Thunderstorm Warning | OAX | Dodge, Saunders | 64 min |
| Jun 24, 10:06 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Washington | 64 min |
| Jun 24, 10:40 PM CDT | Severe Thunderstorm Warning | OAX | Pawnee, Richardson | 65 min |
| Jun 24, 10:52 PM CDT | Severe Thunderstorm Warning | OAX | Nemaha | 63 min |
| Jun 24, 11:53 PM CDT | Flash Flood Warning | OAX | Dodge | 4 hr |
| Jun 25, 12:49 AM CDT | Severe Thunderstorm Warning | OAX | Burt | 36 min |
| Jun 25, 12:54 AM CDT | Severe Thunderstorm Warning | OAX | Richardson | 46 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.