Alert archive / Mississippi / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 59, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 21, 1993, 7:43 AM CST for Claiborne County, Warren County, Mississippi. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Feb 21, 1993, 7:43 AM CST (13:43 UTC)
- Expired
- Feb 21, 1993, 8:15 AM CST
- In force
- 32 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Claiborne County, MS, Warren County, MS
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 1.7 hours before the alert went out and 77 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
- 24 J/kg
- Mixed-layer CIN
- -260 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 508 m²/s²
- 0-3 km storm-relative helicity
- 622 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 21, 3:25 AM CST, 4 hours 18 minutes before
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</html>Special weather statement, Feb 21, 5:13 AM CST, 2 hours 30 minutes before
MSZ001-002-004>007-211140 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 505 AM CST SUN FEB 21 1993 SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A LINE FROM GREENVILLE TO GRENADA TO AMORY. AT 5 AM CST STRONG THUNDERSTORMS WERE OVER EASTERN ARKANSAS...MOVING TO THE EAST AT AROUND 50 MILES AN HOUR. AT THIS MOVEMENT...THE STORMS WILL CROSS THE RIVER INTO THE MISSISSIPPI DELTA WITHIN THE HOUR. SEVERAL WARNINGS HAVE ALREADY BEEN ISSUED FOR SOME ARKANSAS COUNTIES THIS MORNING. PERSONS IN THE WATCH AREA IN NORTH MISSISSIPPI SHOULD REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATEJR STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 5:32 AM CST, 2 hours 11 minutes before
MSZ001-002-004>007-211225 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 525 AM CST SUN FEB 21 1993 SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A LINE FROM GREENVILLE TO GRENADA TO AMORY. AT 525 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY SCATTERED OVER THE WESTERN HALF OF MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE LOCATED IN THE DELTA AND NORTHEAST LOUISIANA. THE STRONGEST THUNDERSTORM IN MISSISSIPPI WAS 10 MILES SOUTHWEST OF HOLLANDALE. SEVERAL WARNINGS HAVE ALREADY BEEN ISSUED FOR SOME ARKANSAS COUNTIES THIS MORNING. PERSONS IN THE WATCHf AREA IN NORTH MISSISSIPPI SHOULD REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 6:40 AM CST, 1 hour 3 minutes before
MSZALL-211325 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 625 AM CST SUN FEB 21 1993 SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A LINE FROM GREENVILLE TO GRENADA TO AMORY. AT 625 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY SCATTERED OVER CENTRAL MISSISSIPPI AND THE DELTA. THE HEAVIEST THUNDERSTORMS WERE 30 MILES SOUTHWEST OF JACKSON AND 30 MILES NORTH OF GREENVILLE. MOVEMENT WAS NORTHEAST AT 50 MILES AN HOUR. PERSONS IN THE WATCH AREA IN NORTH MISSISSIPPI SHOULD REMAIN ALERT FOR THREATENING WEATHER AND LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Feb 21, 7:43 AM CST, 0 minutes before
MSZALL-211430 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 730 AM CST SUN FEB 21 1993 ...SEVERE THUNDERSTORM WATCH NUMBER 31 REMAINS IN EFFECT FOR MUCH OF NORTH MISSISSIPPI UNTIL 10 AM CST. THE WATCH AREA IS ALONG AND NORTH OF A LINE FROM GREENVILLE TO GRENADA TO AMORY... ...TORNADO WATCH NUMBER 32 REMAINS IN EFFECT FOR CENTRAL AND SOUTH MISSISSIPPI UNTIL NOON CST... AT 725 AM...THUNDERSTORMS...SEVERAL WITH VERY HEAVY RAIN WERE WIDELY SCATTERED OVER CENTRAL MISSISSIPPI AND THE DELTA. THE STRONGEST THUNDERSTORM IN MISSISSIPPI WAS JUST SOUTH OF FOREST. ANOTHER STRONG THUNDERSTORM WITH VERY HEAVY RAINFALL WAS LOCATED IN NORTHEAST LOUISIANA...JUST WEST OF@ THE MISSISSIPPI RIVER. THIS STORM WAS 20 MILES SOUTHWEST OF VICKSBURG MISSISSIPPI. MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 8:01 AM CST | Severe Thunderstorm Warning | JAN | Hinds | 44 min |
| Feb 21, 8:58 AM CST | Severe Thunderstorm Warning | JAN | Copiah | 32 min |
| Feb 21, 9:11 AM CST | Tornado Warning | JAN | Copiah | 34 min |
| Feb 21, 9:59 AM CST | Tornado Warning | JAN | Simpson, Smith | 31 min |
| Feb 21, 11:45 AM CST | Tornado Warning | JAN | Clarke, Jasper | 60 min |
| Feb 21, 12:27 PM CST | Tornado Warning | JAN | Choctaw | 48 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1993Every severe thunderstorm warning in 1993
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.