Alert archive / Nebraska / Tornado Warnings in 1991
Tornado Warning 1, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Apr 26, 1991, 6:16 PM CDT for Knox County, Pierce County, Nebraska. It was in force for 29 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
- Apr 26, 1991, 6:16 PM CDT (23:16 UTC)
- Expired
- Apr 26, 1991, 6:45 PM CDT
- In force
- 29 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
Counties Knox County, NE, Pierce County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 26, 6:40 PM CDT | Thunderstorm Wind 52 | Pierce, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 11.3 hours before the alert went out and 170 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
- 21 J/kg
- Mixed-layer CIN
- -435 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 531 m²/s²
- 0-3 km storm-relative helicity
- 672 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOFK 262315 TOROFK NEC107-139-262345- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORFOLK NE 616 PM CDT FRI APR 26 1991 THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST NEBRASKA ...EASTERN KNOX COUNTY...WESTERN PIERCE COUNTY AT 615 PM A TORNADO WAS REPORTED ON THE GROUND JUST 6 MILES SOUTH AND 3 MILES WEST OF PLAINVIEW. THIS TORNADO WAS MOVING RAPIDLY TO THE NORTH AT 40 MPH. PERSONS IN AND AROUND PLAINVIEW SHOULD TAKE COVER IMMEDIATELY. IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE SHELTER IN A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITUREC. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 1:20 PM CDT | Severe Thunderstorm Warning | LBF | Keya Paha | 30 min |
| Apr 26, 3:49 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Loup | 26 min |
| Apr 26, 4:40 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 40 min |
| Apr 26, 5:13 PM CDT | Severe Thunderstorm Warning | LBF | Boyd | 27 min |
| Apr 26, 5:27 PM CDT | Severe Thunderstorm Warning | LBF | Cedar, Knox | 63 min |
| Apr 26, 6:12 PM CDT | Severe Thunderstorm Warning | LBF | Madison | 48 min |
| Apr 26, 6:12 PM CDT | Severe Thunderstorm Warning | LBF | Cedar, Knox, Pierce | 48 min |
Nearby
Tornado Warnings in Nebraska, 1991Every tornado warning in 1991Tornadoes in 1991
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.