Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 18, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Jun 1, 1990, 4:05 PM MDT for Grant County, Nebraska. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jun 1, 1990, 4:05 PM MDT (22:05 UTC)
- Expired
- Jun 1, 1990, 5:00 PM MDT
- In force
- 55 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Grant 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 12:00Z, 10.1 hours before the alert went out and 129 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
- 1619 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLBF 012205
SVRLBF
NEC075-012300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
405 PM MDT FRI JUN 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 500 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE NORTH CENTRAL PART OF NEBRASKA
GRANT
AT 404 PM MDT RADAR INDICATES AN SEVERE THUNDERSTORM
22 MILES SOUTH OF HYANNIS NEBRASKA OR 60 MILES NORTHWEST
OF NORTH PLATTE. MOVING NORTH AT 20 MILES AN HOUR.
IF YOU ARE IN THE AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY
HEAVY RAIN...AND DEADLY LIGHTNING.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL GREATER THAN 3/4 INCH IN DIAMETER...DEADLY LIGHTNING
AND VERY HEAVY RAIN THAT CAN FLOOD A LOW LYING AREA QUICKLY.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEV ERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
HETZKEF ISSUERWhat forecasters said that day
The local office's own words before this severe thunderstorm 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, Jun 1, 3:16 PM MDT, 49 minutes before
NEZ006-012210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 310 PM MDT FRI JUN 1 1990 ...TORNADO WATCH IN EFFECT WESTERN AND CENTRAL NEBRASKA UNTIL 9 PM MDT. AT 310 PM MDT INTENSE THUNDERSTORMS WERE MOVING INTO SOUTHWEST GRANT COUNTY. THIS IS 75 MILES NORTHWEST OF NORTH PLATTE NEBRASKA. THESE THUNDERSTORMS MAY PRODUCE HEAVY RAIN, HAIL, GUSTY SURFACE WINDS, AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING NORTHNORTHEAST AT 20 MPH. SMALLFIELD
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 2:34 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 56 min |
| Jun 1, 3:33 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 57 min |
| Jun 1, 3:39 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Grant | 66 min |
| Jun 1, 5:00 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 60 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990
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.