Alert archive / Missouri / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 45, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at May 20, 1990, 11:44 PM CDT for Texas County, Wright County, Missouri. It was in force for 61 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
- May 20, 1990, 11:44 PM CDT (04:44 UTC)
- Expired
- May 21, 1990, 12:45 AM CDT
- In force
- 61 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
Counties Texas County, MO, Wright County, MO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 21, 12:38 AM CDT | Hail 2.75 | Texas, MO |
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
Springfield, MO (KUMN), launched 00:00Z, 4.7 hours before the alert went out and 147 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 210444
SVRSGF
MOC215-229-210545-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1144 PM CDT SUN MAY 20 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1245 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE SOUTH CENTRAL PART OF MISSOURI
TEXAS...
IN THE SOUTHWEST PART OF MISSOURI
WRIGHT...
AT 1150 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 40 MILES EAST
OF SPRINGFIELD NEAR HARTVILLE MISSOURI.
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 BUSINESS.
THIS IS A DANGEROUS STORM...PREPARE FOR DAMAGING WINDS...LARGE HAIL
AND DEADLY LIGHTNING.
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 21, 12:20 AM CDT | Severe Thunderstorm Warning | SGF | Barry, McDonald, Newton, Stone | 55 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.