Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 56, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1990, 10:18 PM CST for Lauderdale County, Mississippi. It was in force for 27 min.
The area
The counties it named.
The facts
- Issued
- Feb 15, 1990, 10:18 PM CST (04:18 UTC)
- Expired
- Feb 15, 1990, 10:45 PM CST
- In force
- 27 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Lauderdale 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, 4.3 hours before the alert went out and 134 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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
Special weather statement, Feb 15, 8:20 PM CST, 1 hour 58 minutes before
MSZALL-160300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 815 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 MUCH OF NORTHERN MISSISSIPPI TILL MIDNIGHT... AT 800 PM CST...A LINE OF STRONG THUNDERSTORMS WAS INDICATED ACROSS NORTHWEST MISSISSIPPI FROM ROLLING FORK TO TUPELO. THIS LINE IS MOVING EAST AROUND 20 MPH WITH INDIVIDUAL STORMS MOVING NORTHEAST AT 60 MPH. THESE STORMS HAVE BEEN ASSOCIATED WITH VERY HEAVY RAIN..STRONG WIND..AND DAMAGING HAIL. THE STRONGEST IN THE LINE WAS LOCATED NEAR BELZONI. A LINE OF STRONG THUNDERSTORMS WAS ALSO LOCATED ACROSS EAST AND SOUTHEAST MISSISSIPPI FROM MACON SOUTWESTWARD TO TYLERTOWN. THE STORMS WERE MOVING NORTHEAST ABOUT 60 MPH AND THE LINE WAS MOVING TO THE EAST ABOUT 20 MPH. THE STRONGEST STORMS WERE LOCATED NEAR BAY SPRINGS AND TYLERTOWN. AN AREA OF THUNDERSTORMS WAS ALSO INDICATED OVER SOUTHWEST MISSISSIPPI. THESE STORMS ARE MOVING INTO A WARM..MOIST AREA AND MAY CONTINUE TO STRENGHTEN. THEY WERE LOCATED IN AN AREA FROM PORT GIBSON TO HAZELHURST TO MCCOMB AND WERE MOVING NORTHEAST ABOUT 60 MPH.
Special weather statement, Feb 15, 8:43 PM CST, 1 hour 35 minutes before
MSZALL-160330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 835 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 REMAINS IN EFFECT FOR NORTHEAST MISSISSIPPI UNTIL MIDNIGHT... ...TORNADO WATCH 40 HAS BEEN CANCELLED FOR THE AREA NORTHWEST OF A LINE FROM GREENVILLE TO OXFORD TO RIPLEY... AT 825 PM CST...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM ROLLING FORK TO TUPELO. THESE STORMS HAD DECREASED SLIGHTLY IN INTENSITY OVER THE PAST 30 MINUTES. THE STORMS WERE MOVING TO THE NORTHEAST AT 60 MPH WITH THE STRONGEST ONES FROM HOLLANDALE TO LAKE PROVIDENCE LOUISIANA AND NEAR GREENWOOD. LINE MOVEMENT WAS TO THE EAST ABOUT 20 MPH. ANOTHER LINE OF THUNDERSTORMS WAS INDICATED FROM BATON ROUGE LOUISIANA NORTHEAST TO DEKALB. THUNDERSTORM MOVEMENT WAS NORTHEAST AT 60 MPH WHILE THE LINE MOVED TO THE EAST AT 20 MPH. AN AREA OF THUNDERSTORMS WAS INDICATED OVER MISSISSIPPI SOUTHWEST OF A LINE FROM PORT GIBSON TO MCCOMB. THESE WERE MOVING TO THE NORTHEAST AT 60 MPH. THUNDERSTORMS WILL CONTINUE OVER THE REGION THROUGH TONIGHT AS A COLD FRONT APPROACHES FROM ARKANSAS. RESIDENTS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS IN THEIR AREA.
Special weather statement, Feb 15, 9:18 PM CST, 1 hour before
MSZALL-160400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 910 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 REMAINS IN EFFECT SOUTHEAST OF A LINE FROM GREENVILLE TO OXFORD TO RIPLEY... AT 900 PM CST...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM PONCHATOULA LOUISIANA TO MERIDIAN. THESE STORMS HAD INTENSIFIED OVER THE PAST HOUR AS THEY MOVED INTO WARM AIR OVER SOUTHERN LOUISIANA AND MISSISSIPPI. THE STRONGEST STORM WAS LOCATED IN SOUTHERN MARION COUNTY NEAR SANDY HOOK AND COULD PRODUCE SEVERE WEATHER AS IT DEVELOPS. THE LINE OF THUNDERSTORMS OVER NORTHWEST MISSISSIPPI WAS LOCATED FROM HOLLY BLUFF TO BELZONI TO NEAR TUPELO. THE STRONGEST THUNDERSTORM IN THIS LINE WAS LOCATED OVER BELZONI. SCATTERED THUNDERSTORMS CONTINUED OVER SOUTHWEST MISSISSIPPI. STRONG THUNDERSTORMS OVER THE STATE MAY P/RODUCE HEAVY RAIN..STRONG WIND AND DANGEROUS HAIL. RESIDENTS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER.
Special weather statement, Feb 15, 9:38 PM CST, 40 minutes before
MSZALL-160400- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 935 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 42 HAS BEEN ISSUED FOR EAST CENTRAL AND SOUTH EAST MISSISSIPPI UNTIL 4 AM... ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 REMAINS IN EFFECT SOUTHEAST OF A LINE FROM GREENVILLE TO OXFORD TO RIPLEY... AT 925 PM...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM PONTOTOC TO HOLLY BLUFF AND EXTENDED INTO NORTHEAST LOUISIANA. THE LINE WAS MOVING EAST AT 15 MPH WHILE STORM MOVEMENT WAS NORTHEAST AT 60 MPH. A LINE OF STRONG THUNDERSTORMS FROM INDEPENDENCE LOUISIANA TO MERIDIAN WAS ALSO MOVING EAST AT 15 MPH. STORMS HAD INTENSIFIED OVER THE PAST 30 MINUTES AND WERE MOVING NORTHEAST AT 60 MPH. THE STRONGEST STORMS WERE NEAR HATTIESBURG..SANDY HOOKS AND ENON LOUISIANA. SCATTERED THUNDERSTORMS CONTINOUED OVER SOUTHWEST MISSISSIPPI. STRONG THUNDERSTORMS OVER THE STATE MAY PRODUCE HEAVY RAIN..STRONG WIND AND DANGEROUS HAIL. RESIDENTS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER.
Special weather statement, Feb 15, 9:39 PM CST, 39 minutes before
MSZALL-160400- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY ...CORRECTED NATIONAL WEATHER SERVICE JACKSON MS 935 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 42 HAS BEEN ISSUED FOR EAST CENTRAL AND SOUTH EAST MISSISSIPPI UNTIL 4 AM... ...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI UNTIL 1000 PM... ...TORNADO WATCH NUMBER 40 REMAINS IN EFFECT SOUTHEAST OF A LINE FROM GREENVILLE TO OXFORD TO RIPLEY... AT 925 PM...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM PONTOTOC TO HOLLY BLUFF AND EXTENDED INTO NORTHEAST LOUISIANA. THE LINE WAS MOVING EAST AT 15 MPH WHILE STORM MOVEMENT WAS NORTHEAST AT 60 MPH. A LINE OF STRONG THUNDERSTORMS FROM INDEPENDENCE LOUISIANA TO MERIDIAN WAS ALSO MOVING EAST AT 15 MPH. STORMS HAD INTENSIFIED OVER THE PAST 30 MINUTES AND WERE MOVING NORTHEAST AT 60 MPH. THE STRONGEST STORMS WERE NEAR LAUREL..SANDY HOOKS AND ENON LOUISIANA. SCATTERED THUNDERSRTORMS CONTINUED OVER SOUTHWEST MISSISSIPPI. STRONG THUNDERSTORMS OVER THE STATE MAY PRODUCE HEAVY RAIN..STRONG WIND AND DANGEROUS HAIL. RESIDENTS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO TAKE SHELTER.
Special weather statement, Feb 15, 10:07 PM CST, 11 minutes before
MSZALL-160500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1000 PM CST THU FEB 15 1990 ...TORNADO WATCH NUMBER 42 HAS BEEN ISSUED FOR EAST CENTRAL AND SOUTH EAST MISSISSIPPI UNTIL 4 AM... ...TORNADO WATCH NUMBER 39 HAS EXPIRED AND IS NO LONGER IN EFFECT... ...TORNADO WATCH NUMBER 40 REMAINS IN EFFECT SOUTHEAST OF A LINE FROM GREENVILLE TO OXFORD TO RIPLEY... AT 1000 PM...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM ENON LOUISIANA TO NEAR MERIDIAN. A SEVERE THUNDERSTORM WAS INDICATED NEAR POPLARVILLE AND WAS MOVING NORTHEAST AT 60 MPH. STRONG STORMS WERE ALSO LOCATED NEAR HATTIESBURG AND LAUREL. HEAVY RAIN..HAIL AND DAMAGING WIND ARE POSSIBLE WITH THESE STORMS. A LINE OF THUNDERSTORMS CONTINUED OVER NORTHWEST MISSISSIPPI. THESE WERE LOCATED FROM NEAR HOLLY BLUFF TO TUPELO AND HAD BEGUN TO WEAKEN. HOWEVER...THESE STORMS COULD INTENSIFY AS THE LINE DRIFTS EASTWARD. RESIDENTS IN THE VICINITY OF THUNDERSTORMSp SHOULD ALERT AND SEEK SHELTER WHEN NECESSARY.
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, 8:02 PM CST | Severe Thunderstorm Warning | JAN | Leflore | 28 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, 10:49 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 |
| Feb 15, 10:23 PM CST | Severe Thunderstorm Warning | JAN | Sumter | 52 min |
| Feb 16, 4:28 AM CST | Flash Flood Warning | JAN | Choctaw, Sumter | 4 hr |
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.