Alert archive / Nebraska / Tornado Warnings in 1998
Tornado Warning 74, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Jul 6, 1998, 6:11 PM CDT for Colfax County, Platte County, Nebraska. It was in force for 64 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
- Jul 6, 1998, 6:11 PM CDT (23:11 UTC)
- Expired
- Jul 6, 1998, 7:15 PM CDT
- In force
- 64 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Colfax County, NE, Platte County, NE
The radar
The Omaha radar (KOAX), 83 km from the middle of the area, began a volume at 23:15 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 |
|---|---|---|---|
| Jul 6, 6:30 PM CDT | Thunderstorm Wind 61 | Creston, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 6, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 5:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.2 hours before the alert went out and 83 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
- 1215 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 979 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- -19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
795 WFUS1 KOMA 062312 RRA TOROMA NEC037-141-070015- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 611 PM CDT MON JUL 6 1998 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN PLATTE COUNTY IN NORTHEASTERN NEBRASKA COLFAX COUNTY IN NORTHEASTERN NEBRASKA * UNTIL 715 PM CDT * AT 610 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO 19 MILES NORTH OF COLUMBUS OR 3 MILES WEST NORTHWEST OF CRESTON MOVING EAST SOUTHEAST AT 35 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... CRESTON AROUND 612 PM CDT LEIGH AROUND 625 PM CDT CLARKSON AROUND 630 PM CDT PEOPLE IN THE PATH OF THIS TORNADO SHOULD TAKE COVER IMMEDIATELY TO SAVE YOUR LIVES. MOVE TO A STURDY BUILDING...A BASEMENT IF POSSIBLE AND COVER YOUR HEAD FOR PROTECTION FROM FLYING DEBRIS. BCM
What forecasters said that day
The local office's own words before this tornado 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, Jul 6, 4:45 PM CDT, 1 hour 26 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-071200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 445 PM CDT MON JUL 6 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION WILL BE REQUIRED ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA THIS EVENING. DISCUSSION... SEVERE THUNDERSTORMS WERE MOVING INTO NORTHEAST NEBRASKA LATE THIS AFTERNOON WITH A LINE OF STORMS DEVELOPING INTO CENTRAL NEBRASKA. THIS STORM COMPLEX WILL CONTINUE TO MOVE EAST DURING THE EVENING AND IS EXPECTED TO REACH EAST CENTRAL AND SOUTHEAST NEBRASKA AND SOUTHWEST IOWA BETWEEN 7 AND 10 PM. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT WITH ISOLATED TORNADOES POSSIBLE. VERY HEAVY RAIN IS ALSO LIKELY WITH THESE STORMS AND SINCE THE GROUND IS ALREADY SATURATED FROM RAINFALL OVER THE PAST TWO DAYS SMALLER STREAMS AND CRE@EKS WILL TEND TO FLOOD QUICKLY. FOBERT
Special weather statement, Jul 6, 4:45 PM CDT, 1 hour 26 minutes before
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-088>093- IAZ043-055-056-069-079-080-090-091-071200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 445 PM CDT MON JUL 6 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER ACTIVATION WILL BE REQUIRED ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA THIS EVENING. DISCUSSION... SEVERE THUNDERSTORMS WERE MOVING INTO NORTHEAST NEBRASKA LATE THIS AFTERNOON WITH A LINE OF STORMS DEVELOPING INTO CENTRAL NEBRASKA. THIS STORM COMPLEX WILL CONTINUE TO MOVE EAST DURING THE EVENING AND IS EXPECTED TO REACH EAST CENTRAL AND SOUTHEAST NEBRASKA AND SOUTHWEST IOWA BETWEEN 7 AND 10 PM. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT WITH ISOLATED TORNADOES POSSIBLE. VERY HEAVY RAIN IS ALSO LIKELY WITH THESE STORMS AND SINCE THE GROUND IS ALREADY SATURATED FROM RAINFALL OVER THE PAST TWO DAYS SMALLER STREAMS AND CRE@EKS WILL TEND TO FLOOD QUICKLY. FOBERT
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 10:20 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 60 min |
| Jul 5, 10:28 PM CDT | Flash Flood Warning | OAX | Washington | 6 hr |
| Jul 5, 11:20 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 45 min |
| Jul 5, 11:32 PM CDT | Severe Thunderstorm Warning | OAX | Antelope | 48 min |
| Jul 6, 3:51 PM CDT | Severe Thunderstorm Warning | OAX | Knox | 64 min |
| Jul 6, 4:27 PM CDT | Severe Thunderstorm Warning | OAX | Antelope | 63 min |
| Jul 6, 4:30 PM CDT | Severe Thunderstorm Warning | OAX | Cedar | 65 min |
| Jul 6, 4:45 PM CDT | Tornado Warning | OAX | Antelope, Knox, Pierce | 60 min |
| Jul 6, 5:07 PM CDT | Tornado Warning | OAX | Cedar | 63 min |
| Jul 6, 5:19 PM CDT | Severe Thunderstorm Warning | OAX | Boone, Madison | 61 min |
| Jul 6, 5:19 PM CDT | Severe Thunderstorm Warning | OAX | Pierce, Wayne | 61 min |
| Jul 6, 5:26 PM CDT | Severe Thunderstorm Warning | OAX | Stanton | 79 min |
| Jul 6, 5:58 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Thurston | 67 min |
| Jul 6, 5:58 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Thurston | 62 min |
| Jul 6, 6:16 PM CDT | Severe Thunderstorm Warning | OAX | Burt | 64 min |
| Jul 6, 6:37 PM CDT | Severe Thunderstorm Warning | OAX | Dodge | 63 min |
| Jul 6, 6:59 PM CDT | Severe Thunderstorm Warning | OAX | Washington | 61 min |
Nearby
Tornado Warnings in Nebraska, 1998Every tornado warning in 1998Tornadoes 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.