Alert archive / Nebraska / Tornado Warnings in 1998
Tornado Warning 9, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at May 20, 1998, 8:11 PM MDT for Deuel County, Garden County, Nebraska. It was in force for 64 min. 2 reports 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
- May 20, 1998, 8:11 PM MDT (02:11 UTC)
- Expired
- May 20, 1998, 9:15 PM MDT
- In force
- 64 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Deuel County, NE, Garden County, NE
The radar
The North Platte radar (KLNX), 160 km from the middle of the area, began a volume at 02:14 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 |
|---|---|---|---|
| May 20, 9:00 PM MDT | Hail 0.75 | Oshkosh, NE | |
| May 20, 9:20 PM MDT | Hail 1 | Oshkosh, 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.2 hours before the alert went out and 147 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
- 606 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 1739 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 210208 RRA TORLBF NEC049-069-210315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 911 PM CDT (811 PM MDT) WED MAY 20 1998 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN DEUEL COUNTY IN THE NEBRASKA PANHANDLE EXTREME SOUTHWESTERN GARDEN COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 915 PM MDT (1015 PM CDT) * AT 809 PM MDT... NORTH PLATTE DOPPLER RADAR INDICATED A TORNADO 18 MILES NORTHEAST OF SIDNEY OR 10 MILES SOUTH SOUTHWEST OF LISCO MOVING EAST SOUTHEAST AT 15 MPH. * THE TORNADO IS EXPECTED TO REMAIN IN RURAL AREAS SOUTH OF LISCO AND SOUTHWEST OF OSHKOSH. THIS IS A DANGEROUS SITUATION! ACT QUIHCKLY! IT MAY SAVE YOUR LIFE! MOVE TO A BASEMENT IF POSSIBLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND DOORS. BOWMAN
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 9:14 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 61 min |
| May 20, 9:28 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 62 min |
| May 20, 9:52 PM MDT | Severe Thunderstorm Warning | LBF | Deuel | 63 min |
| May 21, 4:26 AM MDT | Severe Thunderstorm Warning | LBF | Chase | 64 min |
| May 21, 4:33 AM MDT | Severe Thunderstorm Warning | LBF | Perkins | 62 min |
| May 21, 5:36 AM MDT | Severe Thunderstorm Warning | LBF | Perkins | 64 min |
| May 21, 6:15 AM MDT | Severe Thunderstorm Warning | LBF | Hayes | 50 min |
| May 21, 6:29 AM MDT | Severe Thunderstorm Warning | LBF | Keith | 46 min |
| May 21, 6:36 AM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 64 min |
| May 21, 6:40 AM MDT | Severe Thunderstorm Warning | LBF | Perkins | 50 min |
| May 21, 6:44 AM MDT | Severe Thunderstorm Warning | LBF | Frontier | 66 min |
| May 21, 7:27 AM MDT | Severe Thunderstorm Warning | LBF | Frontier | 63 min |
| May 21, 7:38 AM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 62 min |
| May 21, 8:28 AM MDT | Severe Thunderstorm Warning | LBF | Frontier | 32 min |
| May 21, 1:19 PM MDT | Severe Thunderstorm Warning | LBF | Arthur | 66 min |
| May 21, 1:33 PM MDT | Severe Thunderstorm Warning | LBF | Grant, Hooker | 62 min |
| May 21, 2:09 PM MDT | Severe Thunderstorm Warning | LBF | McPherson | 66 min |
| May 21, 2:57 PM MDT | Severe Thunderstorm Warning | LBF | Hooker, McPherson, Thomas | 63 min |
| May 21, 3:03 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln | 62 min |
| May 21, 5:38 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 62 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.