Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 52, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1990, 8:02 PM CST for Leflore County, Mississippi. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Feb 15, 1990, 8:02 PM CST (02:02 UTC)
- Expired
- Feb 15, 1990, 8:30 PM CST
- In force
- 28 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Leflore County, MS
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
Jackson, MS (KJAN), launched 00:00Z, 2.0 hours before the alert went out and 138 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
- 1079 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 686 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KJAN 160202
SVRJAN
MSC083-160230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
802 PM CST THU FEB 15 1990
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH CENTRAL MISSISSIPPI
...SOUTHERN LEFLORE
AT 800 PM CST...A SEVERE THUNDERSTORM WAS INDICATED OVER SOUTHERN
LEFLORE COUNTY NEAR MORGAN CITY. PEA SIZED HAIL HAS BEEN RECENTLY
REPORTED WITH THIS STORM. MOVEMENT WAS STILL NORTHEAST AT 60 MILES
AN HOUR.
A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<What 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
Local storm report, Feb 15, 6:13 PM CST, 1 hour 49 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
610 PM CST THU FEB 15 1990
LATE REPORT
310 PM CST...15 PECAN TREES DOWN AND AWNING BLOWEN OFF HOUSE 4 MILES
SOUTH OF MERIDIAN. LAU%DERDALE COUNTY.Special weather statement, Feb 15, 6:22 PM CST, 1 hour 40 minutes before
MSZALL-160100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 615 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 FOR NORTHERN MISSISSIPPI TILL MIDNIGHT... AT 610 PM CST...LARGE AREAS OF RAIN CONTINUED OVER CENTRAL AND NORTHWEST MISSISSIPPI. THERE WERE SCATTERED EMBEDDED THUNDERSTORMS WITHIN THESE AREAS OF RAIN...AND THE STRONGEST STORM WAS MOVING ACROSS SUNFLOWER COUNTY APPROACHING RULEVILLE AND DODDSVILLE. THIS STORM HAS BEEN TORNADIC IN THE PAST...AND RADAR INDICATES IT MAY STILL BE TORNADIC. THERE HAVE BEEN NUMEROUS REPORTS OF FUNNEL CLOUDS FROM SOUTHERN SUN- FLOWER COUNTY ACROSS LEFLORE COUNTY SINCE 5 PM. THERE HAVE BEEN NO KNOWN CONFIRMED TORNADOES IN THIS AREA AT THIS TIME. NICKEL SIZE HAIL HAS BEEN REPORTED DURING THE PAST HALF HOUR IN STONEVILLE. THE INDIVIDUAL STORMS CONTINUE MOVING NORTHEAST AROUND 45 MPH...BUT THE LINE OF STORMS IN NORTHWEST MISSISSIPPI IS MOVING EAST AT 20 MPH. THE RAIN AREA OVER CENTRAL MISSISSIPPI HAS BEEN SHRINKING AND BECOMING LESS INTENSE. HOWEVER...THERE ARE STILL EMBEDDED THUNDERSTORMS IN THIS RAIN A<REA WHICH MAY PRODUCE LOCALLY HEAVY RAIN. THIS AREA IS MOVING NORTHEAST SLOWLY BUT IS DECREASING IN AREAL COVERAGE.
Special weather statement, Feb 15, 6:46 PM CST, 1 hour 16 minutes before
MSZALL-160100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 640 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 FOR NORTHERN MISSISSIPPI TILL MIDNIGHT... AT 635 PM CST...A LINE OF STRONG THUNDERSTORMS WAS INDICATED ACROSS NORTHWEST MISSISSIPPI FROM MAYERSVILLE TO BATESVILLE. THIS LINE IS MOVING EAST AROUND 20 MPH. THE STRONGEST STORM WITHIN THIS LINE WAS MOVING ACROSS LEFLORE COUNTY JUST NORTH OF GREENWOOD. THIS STORM HAS HAD A TORNADIC HISTORY. OTHER STRONG STORMS WITHIN THIS LINE WERE INDICATED NEAR HOLLENDALE AND NEAR DARNELL LOUISIANA. THESE STORMS PROBABLY CONTAIN HAIL. IN ADVANCE OF THIS LINE...STRONG WIND GUSTS ARE POSSIBLE. THE STORMS WILL ALSO PRODUCE HEAVY RAIN. ELSEWHERE ACROSS MISSISIPPI...AN AREA OF RAIN AND EMBEDDED THUNDERSTORMS WAS INDICATED ACROSS SOUTH CENTRAL AND EAST CENwTRAL MISSISSIPPI. THIS AREA HAS BEEN SHRINKING IN AREAL COVERAGE...BUT ISOLATED STRONG STORMS WITHIN THIS AREA MAY PRODUCE LOCALLY HEAVY RAIN. THE AREA IS DRIFTING EAST.
Special weather statement, Feb 15, 6:47 PM CST, 1 hour 15 minutes before
MSZALL-160100- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 640 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 FOR NORTHERN MISSISSIPPI TILL MIDNIGHT... AT 635 PM CST...A LINE OF STRONG THUNDERSTORMS WAS INDICATED ACROSS NORTHWEST MISSISSIPPI FROM MAYERSVILLE TO BATESVILLE. THIS LINE IS MOVING EAST AROUND 20 MPH. THE STRONGEST STORM WITHIN THIS LINE WAS MOVING ACROSS LEFLORE COUNTY JUST NORTH OF GREENWOOD. THIS STORM HAS HAD A TORNADIC HISTORY. OTHER STRONG STORMS WITHIN THIS LINE WERE INDICATED NEAR HOLLENDALE AND NEAR DARNELL LOUISIANA. THESE STORMS PROBABLY CONTAIN HAIL. IN ADVANCE OF THIS LINE...STRONG WIND GUSTS ARE POSSIBLE. THE STORMS WILL ALSO PRODUCE HEAVY RAIN. ELSEWHERE ACROSS MISSISIPPI...AN AREA OF RAIN AND EMBEDDED THUNDERSTORMS WAS INDICATED ACROSS SOUTH CEyNTRAL AND EAST CENTRAL MISSISSIPPI. THIS AREA HAS BEEN SHRINKING IN AREAL COVERAGE...BUT ISOLATED STRONG STORMS WITHIN THIS AREA MAY PRODUCE LOCALLY HEAVY RAIN. THE AREA IS DRIFTING EAST.
Special weather statement, Feb 15, 7:19 PM CST, 43 minutes before
MSZ009-012-ALZ008-013-160300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 710 PM CST THU FEB 15 1990 TORNADO WATCH NUMBER 38 CONTINUES IN EFFECT FOR EXTREME WEST CENTRAL ALABAMA UNTIL 800 PM CST. TORNADO WATCH NUMBER 39 CONTINUES IN EFFECT FOR EAST CENTRAL MISSISSIPPI UNTIL 1000 PM CST. TORNADO WATCH NUMBER 40 CONTINUES IN EFFECT UNTIL MIDNIGHT FOR NORTH CENTRAL MISSISSIPPI. FLASH FLOOD WARNINGS ARE IN EFFECT FOR THE FOLLOWING COUNTIES UNTIL THE TIMES INDICATED...LAUDERDALE UNTIL 845 PM...JASPER UNTIL 1100 PM...SUMTER COUNTY ALABAMA UNTIL 1145 PM...NOXUBEE UNTIL 1245 AM...NESHOBA UNTIL 100 AM...KEMPER UNTIL 100 AM... AT 700 PM CST RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS EXTENDED FROM NEAR BAY SPRINGS MISSISSIPPI TO NEAR MACON MISSISSIPPI. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 10 MPH. THE INDIVIDUAL STORMS WERE MOVING NORTHEAST AT 40 MPH. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGINZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IA AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
Special weather statement, Feb 15, 7:25 PM CST, 37 minutes before
MSZALL-160200- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 725 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 FOR NORTHERN MISSISSIPPI TILL MIDNIGHT... AT 715 PM CST...A LINE OF STRONG THUNDERSTORMS WAS INDICATED ACROSS WEST AND NORTH CENTRAL MISSISSIPPI FROM ROLLING FORK TO OXFORD. THIS LINE IS MOVING EAST AROUND 20 MPH...BUT INDIVIDUAL STORMS ARE MOVING NORTHEAST AT 60 MPH. THE STRONGEST STORM WITHIN THIS LINE WAS MOVING ACROSS YALOBUSHA COUNTY NEAR COFFEYVILLE. THIS STORM HAS HAD A TORNADIC HISTORY. OTHER STRONG STORMS WITHIN THIS LINE WERE INDICATED NEAR ROLLING FORK AND ITTA BENA. THESE STORMS PROBABLY CONTAIN HAIL. < AHEAD OF THIS LINE OF STORMS...STRONG GUSTY WINDS ARE POSSIBLE. HEAVY RAIN WILL ALSO ACCOMPANY THE STRONGEST STORMS. ELSEWHERE ACROSS MISSISIPPI...AN AREA OF SHOWERS AND THUNDERSTORMS WAS WAS INDICATED ACROSS SOUTH CENTRAL AND EAST CENTRAL MISSISSIPPI. THIS AREA HAS BEEN NARROWING INTO A BAND AND WEAKENING. HOWEVER...ISOLATED STRONG STORMS WITHIN THIS BAND MAY PRODUCE LOCALLY HEAVY RAIN. THIS BAND OF SHOWERS WAS MOVING SLOWLY EAST.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 6:05 PM CST | Tornado Warning | JAN | Sunflower, Washington | 25 min |
| Feb 15, 6:24 PM CST | Tornado Warning | JAN | Leflore | 36 min |
| Feb 15, 6:47 PM CST | Tornado Warning | JAN | Grenada, Tallahatchie | 28 min |
| Feb 15, 6:49 PM CST | Flash Flood Warning | JAN | Noxubee | 6 hr |
| Feb 15, 6:55 PM CST | Flash Flood Warning | JAN | Neshoba | 6 hr |
| Feb 15, 6:58 PM CST | Flash Flood Warning | JAN | Kemper | 6 hr |
| Feb 15, 7:11 PM CST | Tornado Warning | JAN | Yalobusha | 34 min |
| Feb 15, 7:14 PM CST | Severe Thunderstorm Warning | JAN | Issaquena | 31 min |
| Feb 15, 7:28 PM CST | Flash Flood Warning | JAN | Newton | 6 hr |
| Feb 15, 7:33 PM CST | Severe Thunderstorm Warning | JAN | Humphreys, Sharkey | 27 min |
| Feb 15, 8:40 PM CST | Flash Flood Warning | JAN | Lauderdale | 4 hr |
| Feb 15, 8:54 PM CST | Severe Thunderstorm Warning | JAN | Jones | 51 min |
| Feb 15, 10:04 PM CST | Severe Thunderstorm Warning | JAN | Clarke | 26 min |
| Feb 15, 10:12 PM CST | Severe Thunderstorm Warning | JAN | Jones | 48 min |
| Feb 15, 10:18 PM CST | Severe Thunderstorm Warning | JAN | Lauderdale | 27 min |
| Feb 15, 10:49 PM CST | Severe Thunderstorm Warning | JAN | Lauderdale | 26 min |
| Feb 15, 11:07 PM CST | Severe Thunderstorm Warning | JAN | Wayne | 53 min |
| Feb 16, 12:04 AM CST | Severe Thunderstorm Warning | JAN | Jasper | 26 min |
| Feb 16, 12:12 AM CST | Severe Thunderstorm Warning | JAN | Covington | 33 min |
| Feb 16, 12:14 AM CST | Severe Thunderstorm Warning | JAN | Jones | 31 min |
| Feb 16, 12:29 AM CST | Severe Thunderstorm Warning | JAN | Jefferson Davis | 31 min |
| Feb 16, 12:30 AM CST | Severe Thunderstorm Warning | JAN | Jasper | 45 min |
| Feb 16, 12:37 AM CST | Tornado Warning | JAN | Covington, Jefferson Davis | 13 min |
| Feb 16, 12:52 AM CST | Severe Thunderstorm Warning | JAN | Clarke | 53 min |
| Feb 16, 5:05 AM CST | Severe Thunderstorm Warning | JAN | Lamar, Marion | 25 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 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.