Alert archive / Mississippi / Tornado Warnings in 2021
Tornado Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this tornado warning at Mar 17, 2021, 5:55 PM CDT for 4 counties in Mississippi. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 17, 2021, 5:55 PM CDT (22:55 UTC)
- Expired
- Mar 17, 2021, 6:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Chickasaw County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS
The radar
The Columbus AFB radar (KGWX), 38 km from the middle of the area, began a volume at 22:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 11:36 AM CDT | Tornado Watch | SPC | 7 hr |
| Mar 17, 12:57 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 143 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
- 18 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1466 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
559
WFUS54 KMEG 172255
TORMEG
MSC017-057-081-095-172330-
/O.NEW.KMEG.TO.W.0004.210317T2255Z-210317T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
555 PM CDT Wed Mar 17 2021
The National Weather Service in Memphis has issued a
* Tornado Warning for...
Northeastern Chickasaw County in northeastern Mississippi...
Southwestern Itawamba County in northeastern Mississippi...
Southeastern Lee County in northeastern Mississippi...
Northwestern Monroe County in northeastern Mississippi...
* Until 630 PM CDT.
* At 554 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located over Okolona, moving northeast at
45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Fulton, Verona, Okolona, Tombigbee State Park, Shannon,
Plantersville, Mantachie, New Wren, New Salem, Evergreen,
Nettleton, Abney, Cardsville, Tilden, Egypt, Mooreville,
Ballardsville, Wren, Bigbee and Dorsey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter or an interior room on the
lowest floor of a sturdy building. Avoid windows. If you are
outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3400 8891 3436 8852 3416 8830 3386 8876
TIME...MOT...LOC 2254Z 227DEG 37KT 3399 8877
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$3 follow-up statements
046
WWUS54 KMEG 172302
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
602 PM CDT Wed Mar 17 2021
MSC017-057-081-095-172330-
/O.CON.KMEG.TO.W.0004.000000T0000Z-210317T2330Z/
Chickasaw MS-Itawamba MS-Lee MS-Monroe MS-
602 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHEASTERN CHICKASAW...SOUTHWESTERN ITAWAMBA...SOUTHEASTERN LEE AND
NORTHWESTERN MONROE COUNTIES...
At 602 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located near Shannon, or near Okolona, moving
northeast at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Fulton, Okolona, Shannon, New Wren, New Salem, Evergreen, Nettleton,
Abney, Cardsville, Tilden, Wren, Bigbee, Dorsey, Leotis, Jacinto and
Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter or an interior room on the
lowest floor of a sturdy building. Avoid windows. If you are
outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3405 8881 3430 8845 3416 8830 3391 8868
TIME...MOT...LOC 2302Z 227DEG 37KT 3405 8869
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$220
WWUS54 KMEG 172319
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
619 PM CDT Wed Mar 17 2021
MSC017-172328-
/O.CAN.KMEG.TO.W.0004.000000T0000Z-210317T2330Z/
Chickasaw MS-
619 PM CDT Wed Mar 17 2021
...THE TORNADO WARNING FOR NORTHEASTERN CHICKASAW COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 700 PM CDT for northeastern
Mississippi. A Tornado Watch also remains in effect until 700 PM CDT
for northeastern Mississippi.
LAT...LON 3413 8868 3429 8844 3416 8830 3395 8862
TIME...MOT...LOC 2318Z 227DEG 37KT 3417 8854
$$
MSC057-081-095-172330-
/O.CON.KMEG.TO.W.0004.000000T0000Z-210317T2330Z/
Itawamba MS-Lee MS-Monroe MS-
619 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHWESTERN ITAWAMBA...SOUTHEASTERN LEE AND NORTHWESTERN MONROE
COUNTIES...
At 618 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located over Evergreen, or near Tombigbee
State Park, moving northeast at 45 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Fulton, Shannon, New Wren, New Salem, Evergreen, Nettleton, Abney,
Cardsville, Tilden, Wren, Bigbee, Jacinto and Richmond.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter or an interior room on the
lowest floor of a sturdy building. Avoid windows. If you are
outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3413 8868 3429 8844 3416 8830 3395 8862
TIME...MOT...LOC 2318Z 227DEG 37KT 3417 8854
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$422
WWUS54 KMEG 172322
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
622 PM CDT Wed Mar 17 2021
MSC057-081-095-172331-
/O.EXP.KMEG.TO.W.0004.000000T0000Z-210317T2330Z/
Itawamba MS-Lee MS-Monroe MS-
622 PM CDT Wed Mar 17 2021
...THE TORNADO WARNING FOR SOUTHWESTERN ITAWAMBA...SOUTHEASTERN LEE
AND NORTHWESTERN MONROE COUNTIES WILL EXPIRE AT 630 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 700 PM CDT for northeastern
Mississippi. A Tornado Watch also remains in effect until 700 PM CDT
for northeastern Mississippi.
Remember, a Severe Thunderstorm Warning still remains in effect for
portions of Monroe, Itawamba, and Lee Counties until 630 PM CDT.
LAT...LON 3413 8868 3429 8844 3416 8830 3395 8862
TIME...MOT...LOC 2321Z 227DEG 37KT 3418 8852
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:38 AM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Lafayette, Pontotoc, Yalobusha | 37 min |
| Mar 17, 5:24 AM CDT | Severe Thunderstorm Warning | MEG | Panola, Tate | 20 min |
| Mar 17, 6:35 AM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Panola, Quitman, Tallahatchie, Tunica | 40 min |
| Mar 17, 6:49 AM CDT | Severe Thunderstorm Warning | MEG | Marshall | 14 min |
| Mar 17, 7:12 AM CDT | Severe Thunderstorm Warning | MEG | Lafayette, Marshall, Panola, Quitman, Tallahatchie, Tate and 1 more | 48 min |
| Mar 17, 8:24 AM CDT | Areal Flood Advisory | MEG | Benton, DeSoto, Marshall, Tate, Tunica | 2 hr |
| Mar 17, 9:04 AM CDT | Flash Flood Warning | MEG | Alcorn, Benton, DeSoto, Marshall, Tate, Tippah | 3 hr |
| Mar 17, 10:29 AM CDT | Flash Flood Warning | MEG | Alcorn, Prentiss, Tishomingo | 3 hr |
| Mar 17, 3:18 PM CDT | Tornado Warning | MEG | Itawamba, Prentiss, Tishomingo | 27 min |
| Mar 17, 4:17 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Lafayette, Pontotoc, Union | 28 min |
| Mar 17, 4:28 PM CDT | Areal Flood Advisory | MEG | Itawamba, Prentiss, Tishomingo | 5 hr |
| Mar 17, 4:43 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Lafayette, Marshall, Union | 32 min |
| Mar 17, 4:52 PM CDT | Flash Flood Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 4 hr |
| Mar 17, 4:56 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Pontotoc, Prentiss, Union | 49 min |
| Mar 17, 4:58 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw, Pontotoc | 20 min |
| Mar 17, 5:45 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 45 min |
| Mar 17, 5:55 PM CDT | Flash Flood Warning | MEG | Calhoun, Chickasaw | 4 hr |
| Mar 17, 6:28 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Monroe | 47 min |
| Mar 17, 6:33 PM CDT | Special Weather Statement | MEG | Lafayette, Marshall, Yalobusha | 42 min |
Nearby
Tornado Warnings in Mississippi, 2021Every tornado warning in 2021Tornadoes in 2021
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; radar from the NEXRAD Level II archive.