Alert archive / Mississippi / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 49, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1993, 6:46 PM CST for Issaquena County, Mississippi. It was in force for 29 min.
The area
The counties it named.
The facts
- Issued
- Feb 15, 1993, 6:46 PM CST (00:46 UTC)
- Expired
- Feb 15, 1993, 7:15 PM CST
- In force
- 29 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Issaquena County, MS
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 0.8 hours before the alert went out and 97 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
- 188 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 490 m²/s²
- 0-3 km storm-relative helicity
- 694 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 160048 COR SVRJAN MSC055-160115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE JACKSON MS 646 PM CST MON FEB 15 1993 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN WEST CENTRAL MISSISSIPPI ...ISSAQUENA COUNTY AT 640 PM CST RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 10 MILES SOUTHWEST OF LAKE PROVIDENCE LOUISIANA...MOVING NORTHEAST 40 MPH. 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
Special weather statement, Feb 15, 2:28 PM CST, 4 hours 18 minutes before
MSZALL-160000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 215 PM CST MON FEB 15 1993 ...THUNDERSTORMS POISED TO THE WEST...SOME SEVERE FOR TONIGHT... STRONG TO SEVERE THUNDERSTORMS HAVE ERUPTED FROM NORTHWEST LOUISIANA BACK INTO CENTRAL TEXAS THIS AFTERNOON. THESE STORMS ARE MARCHING EASTWARD AT BETWEEN 40 AND 50 MPH MEANING THAT THEY COULD REACH THE MISSISSIPPI RIVER BETWEEN 4 AND 6 PM CST. A TORNADO WATCH IS ALSO IN EFFECT FOR MOST OF THE NORTHWEST HALF OF LOUISIANA AT THIS TIME. A DEEPENING LOW PRESSURE CENTER NEAR WACO, TX WILL ACCELERATE NORTHEAST REACHING NEAR MEMPHIS BY MIDNIGHT. STRONG SOUTHERLY WINDS GUSTING UP TO 35 OR 40 MPH ARE LIKELY TO IMPACT THE WESTERN HALF OF MISSISSIPPI SHORTLY AND A WIND ADVISORY REMAINS IN EFFECT FOR THOSE AREAS. INCREASING WARM MOIST AIR FROM THE GULF OF MEXICO WILL FUEL THE THUNDER- STORMS AS THEY RACE ACROSS THE MAGNOLIA STATE TONIGHT. < RESIDENTS OF MAINLY CENTRAL AND SOUTH MISSISSIPPI SHOULD KEEP TUNED TO THE LATEST WEATHER INFORMATION THROUGH TONIGHT. CHECK YOUR SAFETY PLANS AND BE READY TO SEEK SHELTER IN A STURDY BUILDING ON THE LOWEST FLOOR AWAY FROM WINDOWS. THIS IS BECOMING A DANGEROUS WEATHER SITUATION AND YOUR RESPONSE TO APPROACHING SEVERE STORMS COULD SAVE YOUR LIFE... SECONDS CAN BE THE DIFFERENCE.
Special weather statement, Feb 15, 6:39 PM CST, 7 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-160130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
630 PM CST MON FEB 15 1993
... STRONG THUNDERSTORMS OVER PORTIONS OF CENTRAL MISSISSIPPI ...
... THREAT OF SEVERE THUNDERSTORMS AND TORNADOES CONTINUES FOR
MUCH OF MISSISSIPPI ...
AT 625 PM CST...RADAR INDICATED STRONG THUNDERSTORMS OVER CENTRAL
MISSISSIPPI...MOSTLY BETWEEN VICKSBURG...YAZOO CITY...CANTON AND
EDINBURG. OTHER STRONG THUNDERSTORMS...CURRENTLY INTENSIFYING...WERE
OVER NORTHEAST LOUISIANA...NEAR LAKE PROVIDENCE AND OAK GROVE...
AND WERE PREPARING TO ENTER WEST-CENTRAL MISSISSIPPI.
THE THUNDERSTORMS WERE MOVING NORTHEAST AT BETWEEN 55 AND 60 MPH.
<<
TORNADO WATCHES COVER A LARGE PART OF MISSISSIPPI UNTIL 11 PM CST
TONIGHT. THIS INCLUDES MUCH OF THE STATE SOUTH OF A COLUMBUS TO
GREENVILLE LINE.
IF YOU ARE IN MISSISSIPPI TONIGHT...ESPECIALLY IN AREAS COVERED
BY TORNADO WATCHES...YOU SHOULD EXPECT SEVERE WEATHER TO OCCUR.
ALSO...KEEP IN MIND THAT WEATHER CONDITIONS ARE CURRENTLY
CONDUCIVE TO THE FORMATION OF ISOLATED TORNADOES AS WELL.Special weather statement, Feb 15, 6:41 PM CST, 5 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-160130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
625 PM CST MON FEB 15 1993
... STRONG THUNDERSTORMS OVER PORTIONS OF CENTRAL MISSISSIPPI ...
... THREAT OF SEVERE THUNDERSTORMS AND TORNADOES CONTINUES FOR
MUCH OF MISSISSIPPI ...
AT 625 PM CST...RADAR INDICATED STRONG THUNDERSTORMS OVER CENTRAL
MISSISSIPPI...MOSTLY BETWEEN VICKSBURG...YAZOO CITY...CANTON AND
EDINBURG. OTHER STRONG THUNDERSTORMS...CURRENTLY INTENSIFYING...WERE
OVER NORTHEAST LOUISIANA...NEAR LAKE PROVIDENCE AND OAK GROVE...
AND WERE PREPARING TO ENTER WEST-CENTRAL MISSISSIPPI.
THE THUNDERSTORMS WERE MOVING NORTHEAST AT BETWEEN 55 AND 60 MPH.
<<
TORNADO WATCHES COVER A LARGE PART OF MISSISSIPPI UNTIL 11 PM CST
TONIGHT. THIS INCLUDES MUCH OF THE STATE SOUTH OF A COLUMBUS TO
GREENVILLE LINE.
IF YOU ARE IN MISSISSIPPI TONIGHT...ESPECIALLY IN AREAS COVERED
BY TORNADO WATCHES...YOU SHOULD EXPECT SEVERE WEATHER TO OCCUR.
ALSO...KEEP IN MIND THAT WEATHER CONDITIONS ARE CURRENTLY
CONDUCIVE TO THE FORMATION OF ISOLATED TORNADOES.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 | Severe Thunderstorm Warning | JAN | Leake | 25 min |
| Feb 15, 6:05 PM CST | Severe Thunderstorm Warning | JAN | Warren | 25 min |
| Feb 15, 6:06 PM CST | Tornado Warning | JAN | Neshoba | 69 min |
| Feb 15, 6:14 PM CST | Tornado Warning | JAN | Winston | 61 min |
| Feb 15, 6:44 PM CST | Severe Thunderstorm Warning | JAN | Leake, Madison | 46 min |
| Feb 15, 7:03 PM CST | Severe Thunderstorm Warning | JAN | Sharkey | 27 min |
| Feb 15, 7:21 PM CST | Severe Thunderstorm Warning | JAN | Humphreys, Yazoo | 39 min |
| Feb 15, 7:25 PM CST | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey | 35 min |
| Feb 15, 8:01 PM CST | Severe Thunderstorm Warning | JAN | Yazoo | 29 min |
| Feb 15, 8:34 PM CST | Severe Thunderstorm Warning | JAN | Warren, Yazoo | 26 min |
| Feb 15, 8:55 PM CST | Flash Flood Warning | JAN | Issaquena, Sharkey, Yazoo | 6 hr |
| Feb 15, 8:55 PM CST | Flash Flood Warning | JAN | Warren | 6 hr |
| Feb 15, 9:02 PM CST | Severe Thunderstorm Warning | JAN | Warren | 28 min |
| Feb 15, 9:08 PM CST | Severe Thunderstorm Warning | JAN | Madison | 52 min |
| Feb 15, 9:50 PM CST | Tornado Warning | JAN | Leake | 25 min |
| Feb 15, 10:06 PM CST | Tornado Warning | JAN | Neshoba | 69 min |
| Feb 15, 10:13 PM CST | Tornado Warning | JAN | Leake | 17 min |
| Feb 15, 10:29 PM CST | Severe Thunderstorm Warning | JAN | Hinds | 31 min |
| Feb 15, 10:50 PM CST | Tornado Warning | JAN | Kemper | 55 min |
| Feb 16, 12:26 AM CST | Severe Thunderstorm Warning | JAN | Simpson | 34 min |
| Feb 16, 12:33 AM CST | Tornado Warning | JAN | Lauderdale | 42 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.