Alert archive / Missouri / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 46, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at May 21, 1990, 12:20 AM CDT for 4 counties in Missouri. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- May 21, 1990, 12:20 AM CDT (05:20 UTC)
- Expired
- May 21, 1990, 1:15 AM CDT
- In force
- 55 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
Counties Barry County, MO, McDonald County, MO, Newton County, MO, Stone County, MO
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
Springfield, MO (KUMN), launched 00:00Z, 5.3 hours before the alert went out and 24 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
- 2299 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1348 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 7.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSGF 210520
SVRSGF
MOC009-119-145-209-097-210615-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1220 AM CDT MON MAY 21 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 115 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE SOUTHWEST PART OF MISSOURI
BARRY...MCDONALD...NEWTON...STONE...JASPER
AT 1215 PM CDT RADAR INDICATED SEVERE THUNDERSTORMS REDEVELOPING
ACROSS EXTREME SOUTHWEST MISSOURI FROM NEAR JOPLIN TO 30 MILES
SOUTH OF JOPLIN TO 40 MILES SOUTH OF SPRINGFIELD. THESE STORMS HAD
LARGE HAIL AND DAMAGING WINDS AND WILL MOVE THROUGH NEOSHO...JOPLIN
...CASSVILLE DURING THE NEXT HOUR.
FLASH FLOODING CAN BE EXPECTED ON LOW LYING AREAS AND SMALL
STREAMS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM
ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS1.
BAREISThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 8:27 PM CDT | Severe Thunderstorm Warning | SGF | Dade, Jasper, Lawrence, Newton | 63 min |
| May 20, 9:22 PM CDT | Severe Thunderstorm Warning | SGF | Jasper, Lawrence | 68 min |
| May 20, 9:22 PM CDT | Severe Thunderstorm Warning | SGF | Christian, Greene | 68 min |
| May 20, 10:02 PM CDT | Severe Thunderstorm Warning | SGF | Stone | 58 min |
| May 20, 10:02 PM CDT | Severe Thunderstorm Warning | SGF | Webster | 58 min |
| May 20, 10:02 PM CDT | Severe Thunderstorm Warning | SGF | Newton | 58 min |
| May 20, 10:36 PM CDT | Tornado Warning | SGF | Christian, Greene, Webster | 54 min |
| May 20, 10:59 PM CDT | Tornado Warning | SGF | Stone | 46 min |
| May 20, 11:11 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Newton | 64 min |
| May 20, 11:44 PM CDT | Severe Thunderstorm Warning | SGF | Texas, Wright | 61 min |
| May 21, 12:20 AM CDT | Severe Thunderstorm Warning | SGF | Jasper | 55 min |
| May 21, 12:45 AM CDT | Severe Thunderstorm Warning | SGF | Shannon, Texas | 60 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.