Alert archive / Nebraska / Tornado Warnings in 1989
Tornado Warning 1, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at May 21, 1989, 7:39 PM CDT for McPherson County, Nebraska. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- May 21, 1989, 7:39 PM CDT (00:39 UTC)
- Expired
- May 21, 1989, 8:15 PM CDT
- In force
- 36 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County McPherson County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.7 hours before the alert went out and 62 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
- 1285 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 1630 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLBF 220039
TORLBF
NEC117-220115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
739 PM CDT SUN MAY 21 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE NORTH CENTRAL PART OF NEBRASKA
MCPHERSON
AT 730 PM CDT A TORNADO WAS OBSERVED BY THE TRYON FIRE DEPARTMENT
3 MILES NORTHWEST OF TRYON NEBRASKA WHICH IS 30 MILES NORTH
OF NORTH PLATTE NEBRASKA. THIS STORM SHOULD BE MOVING SOUTHEAST
AT 20 MPH.
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE TO BE IS IN
A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...FIND SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
REPORTS OF TORNADOS OR TORNADO DAMAGE SHOULD BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.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, May 21, 5:07 PM CDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 5 PM CDT SUN MAY 21 1989 ...A LINE OF THUNDERSTORMS DEVELOPING OVER WEST CENTRAL AND NORTH CENTRAL NEBRASKA... AT 5PM CDT A LINE OF THUNDERSTORMS...SOME HEAVY...EXTENDED FROM NEAR HYANNIS WHICH IS 45 MILES EAST OF ALLIANCE...NORTHEAST TO 30 MILES EAST OF VALINTINE. THE HEAVIEST STORM WAS JUST SOUTH OF HYANNIS AND WAS MOVING EAST AT 20 MPH. THESE STORMS COULD PRODUCE HAIL...STRONG WINDS...BRIEF HEAVY RAIN AND DANGEROUS LIGHTNING. CARPER MOVE TO A PLACE OF SAFTY IF NECESSARY. OTHER THUNDERSTORMS AND SHOWERS WERE SCATTERED ACROSS SOUTHWEST NEBRASKA MAINLY PRODUCING SHOWERS OF RAIN AND OCASSIONALLY SMALL HAIL. MEYER
Special weather statement, May 21, 5:08 PM CDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE NORTH PLATTE NE 5 PM CDT SUN MAY 21 1989 ...A LINE OF THUNDERSTORMS DEVELOPING OVER WEST CENTRAL AND NORTH CENTRAL NEBRASKA... AT 5PM CDT A LINE OF THUNDERSTORMS...SOME HEAVY...EXTENDED FROM NEAR HYANNIS WHICH IS 45 MILES EAST OF ALLIANCE...NORTHEAST TO 30 MILES EAST OF VALINTINE. THE HEAVIEST STORM WAS JUST SOUTH OF HYANNIS AND WAS MOVING EAST AT 20 MPH. THESE STORMS COULD PRODUCE HAIL...STRONG WINDS...BRIEF HEAVY RAIN AND DANGEROUS LIGHTNING. CARPER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:04 PM CDT | Severe Thunderstorm Warning | LBF | McPherson | 56 min |
| May 21, 8:00 PM CDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 30 min |
| May 21, 8:11 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 64 min |
| May 21, 8:36 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 39 min |
| May 21, 9:00 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 15 min |
| May 21, 9:27 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 33 min |
| May 21, 9:41 PM CDT | Severe Thunderstorm Warning | LBF | Boyd | 34 min |
| May 21, 10:02 PM CDT | Tornado Warning | LBF | Lincoln | 28 min |
Nearby
Tornado Warnings in Nebraska, 1989Every tornado warning in 1989Tornadoes in 1989
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.