Alert archive / Nebraska / Tornado Warnings in 1999
Tornado Warning 13, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Jun 3, 1999, 11:40 PM MDT for Cherry County, Nebraska. It was in force for 65 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
- Jun 3, 1999, 11:40 PM MDT (05:40 UTC)
- Expired
- Jun 4, 1999, 12:45 AM MDT
- In force
- 65 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Cherry County, NE
The radar
The North Platte radar (KLNX), 79 km from the middle of the area, began a volume at 05:39 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 |
|---|---|---|---|
| Jun 4, 12:44 AM MDT | Tornado F0 | Crookston, NE | Spotter reported brief tornado touch down over open rangeland. |
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 |
|---|---|---|---|
| Jun 3, 10:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.7 hours before the alert went out and 163 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
- 2027 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 12.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBF 040539 RRA TORLBF NEC031-040645- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 1240 AM CDT (1140 PM MDT) FRI JUN 4 1999 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA * UNTIL 145 AM CDT * AT 1238 AM CDT... NORTH PLATTE DOPPLER RADAR INDICATED A TORNADO 22 MILES WEST OF VALENTINE OR 8 MILES NORTH OF MERRITT RESERVOIR... MOVING NORTHEAST AT 10 MPH. THE TORNADO IS EXPECTED TO REMAIN IN RURAL AREAS TO THE NORTH OF MERRITT RESERVOIR. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! KAR
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 49 min |
| Jun 3, 6:43 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 47 min |
| Jun 3, 6:58 PM MDT | Tornado Warning | LBF | Cherry | 47 min |
| Jun 3, 7:17 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 33 min |
| Jun 3, 7:47 PM MDT | Tornado Warning | LBF | Cherry | 48 min |
| Jun 3, 8:28 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 62 min |
| Jun 3, 8:37 PM MDT | Tornado Warning | LBF | Cherry | 48 min |
| Jun 3, 8:58 PM MDT | Severe Thunderstorm Warning | LBF | Garfield | 32 min |
| Jun 3, 9:27 PM MDT | Tornado Warning | LBF | Cherry | 33 min |
| Jun 3, 9:31 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 49 min |
| Jun 3, 10:05 PM MDT | Tornado Warning | LBF | Cherry | 30 min |
| Jun 3, 10:16 PM MDT | Severe Thunderstorm Warning | LBF | Wheeler | 49 min |
| Jun 3, 10:26 PM MDT | Tornado Warning | LBF | Garfield | 49 min |
| Jun 3, 10:37 PM MDT | Tornado Warning | LBF | Cherry | 63 min |
| Jun 3, 10:38 PM MDT | Tornado Warning | LBF | Wheeler | 47 min |
| Jun 3, 11:20 PM MDT | Tornado Warning | LBF | Garfield | 50 min |
| Jun 3, 11:30 PM MDT | Tornado Warning | LBF | Wheeler | 45 min |
| Jun 4, 12:18 AM MDT | Severe Thunderstorm Warning | LBF | Wheeler | 47 min |
| Jun 4, 12:47 AM MDT | Tornado Warning | LBF | Cherry | 63 min |
| Jun 4, 5:07 PM MDT | Severe Thunderstorm Warning | LBF | Perkins | 63 min |
| Jun 4, 5:18 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 47 min |
| Jun 4, 5:50 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Garden, Keith | 65 min |
Nearby
Tornado Warnings in Nebraska, 1999Every tornado warning in 1999Tornadoes in 1999
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.