Alert archive / Mississippi / Tornado Warnings in 1991
Tornado Warning 28, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Jun 22, 1991, 3:42 PM CDT for Leflore County, Mississippi. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 22, 1991, 3:42 PM CDT (20:42 UTC)
- Expired
- Jun 22, 1991, 4:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Leflore County, MS
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 8.7 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
- 935 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 704 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 222044 TORJAN MSC083-222115- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON MS 342 PM CDT SAT JUN 22 1991 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL MISSISSIPPI ...EASTERN LEFLORE COUNTY AT 340 PM CDT...SHERIFF'S OFFICE IN GREENWOOD REPORTS A TORNADO ON THE GROUND 2 MILES SOUTH OF GREENWOOD. THIS STORM WAS MOVING TO THE EAST AT 15 MILES AN HOUR. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS IN AN INTERIOR ROOM ON THE LOWEST FLOOR. GET UNDER STURDY FURNITURE. USE PILLOWS OR CUSHIONS TO COVER YOUR HEAD. <
What forecasters said that day
The local office's own words before this tornado 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, Jun 22, 11:33 AM CDT, 4 hours 9 minutes before
MSZALL-221930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1132 AM CDT SAT JUN 22 1991 ...THUNDERSTORMS TO BE ACTIVE ACROSS MISSISSIPPI TODAY... LATE THIS MORNING...A CLUSTER OF THUNDERSTORMS CONTINUED TO MOVE SLOWLY EASTWARD OVER NORTHEAST MISSISSIPPI...WHILE SHOWERS WERE RAPIDLY DEVELOPING OVER SOUTHWEST MISSISSIPPI AND LOUISIANA. THIS IS JUST THE BEGINNING OF WHAT PROMISES TO BE A DAY OF WIDESPREAD THUNDERSTORM ACTIVITY OVER MISSISSIPPI. THE ATMOSPHERE REMAINS VERY UNSTABLE AND AFTERNOON HEATING EASILY TRIGGERS THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS. IN ADDITION TO THE AFTERNOON HEATING...A COUPLE OF UPPER-LEVEL DISTURBANCES WERE ALSO GETTING INTO THE ACT. ONE DISTURBANCE WAS MOVING ACROSS NORTHEAST MISSISSIPPI...WHILE A SECOND ONE WAS APPROACHING FROM EASTERN TEXAS. A WEAK COLD FRONT WILL MOVE INTO NORTHERN MISSISSIPPI DURING THE DAY SUNDAY. THUNDERSTORMS THAT RUMBLE ACROSS MISSISSIPPI THIS AFTERNOON WILL NOT BE YOUR TYPICAL SUMMERTIME THUNDERSTORMS. THE ATMOSPHERE IS MORE UNSTABLE THAN NORMAL FOR LATE JUNE...ESPECIALLY OVER THE GULF COAST STATES. CONSEQUENTLY...THE THUNDERSTORMS WILL BE A LITTLE MORE INTENSE THAN THE TYPICAL AFTERNOON SUMMERTIME THUNDERSTORMS. SOME OF THE STORMS WILL LIKELY PRODUCE LARGE HAIL...BRIEF DAMAGING WINDS...TORRENTIAL RAINFALL...AND FREQUENT LIGHTNING. THE FACT THAT IT IS SATURDAY...AND A LOT OF PEOPLE WILL BE OUTSIDE...THE THREAT OF FREQUENT LIGHTNING IS A MAJOR CONCERN. IF YOU ARE CLOSE ENOUGH TO HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. IF YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING...YOUR LIFE IS IN DANGER. DON`T TAKE CHANCES. GET INSIDE WHEN THREATENING WEATHER APPROACHES YOUR AREA. BOATERS WILL NEED TO BE EXTRA CAUTIOUS AS WELL. SOME OF THE THUNDERSTORMS THIS AFTERNOON WILL LIKELY PRODUCE WIND GUSTS IN THE NEIGHBORHOOD OF 50 MILES AN HOUR. THIS CAN EASILY CAPSIZE A GOOD MANY BOATS. SEEK SAFE HARBOR WHEN YOU FIRST SPOT SIGNS OF THREATENING WEATHER. AGAIN...THE MAIN THREAT FROM TODAY`S THUNDERSTORMS WILL BE HAIL...BRIEF DAMAGING WIND GUSTS...AND LIGHTNING. PLAY IT SAFE AND GET INSIDE WHEN THUNDERSTORMS THREATEN YOUR AREA TODAY.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:59 PM CDT | Severe Thunderstorm Warning | JAN | Tallahatchie | 31 min |
| Jun 22, 4:10 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Holmes | 50 min |
| Jun 22, 4:31 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 59 min |
| Jun 22, 5:09 PM CDT | Flash Flood Warning | JAN | Holmes, Humphreys | 2 hr |
| Jun 22, 5:30 PM CDT | Severe Thunderstorm Warning | JAN | Sunflower | 60 min |
| Jun 22, 5:58 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Jones | 62 min |
| Jun 22, 6:13 PM CDT | Severe Thunderstorm Warning | JAN | Washington | 62 min |
Nearby
Tornado Warnings in Mississippi, 1991Every tornado warning in 1991Tornadoes in 1991
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.