Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 99, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 9:09 PM CDT for Itawamba County, Lee County, Monroe County, Mississippi. It was in force for 51 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 9, 2021, 9:09 PM CDT (02:09 UTC)
- Expired
- Apr 9, 2021, 10:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 80.0 mph
Counties Itawamba County, MS, Lee County, MS, Monroe County, MS
The radar
The Columbus AFB radar (KGWX), 17 km from the middle of the area, began a volume at 02:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 9:15 PM CDT | TSTM WND DMG | Nettleton, MS | LARGE TREE DOWN IN NETTLETON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 2.2 hours before the alert went out and 169 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2032 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 326 m²/s²
- 0-3 km storm-relative helicity
- 590 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
496
WUUS54 KMEG 100209
SVRMEG
MSC057-081-095-100300-
/O.NEW.KMEG.SV.W.0099.210410T0209Z-210410T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
909 PM CDT Fri Apr 9 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Itawamba County in northeastern Mississippi...
Southern Lee County in northeastern Mississippi...
Monroe County in northeastern Mississippi...
* Until 1000 PM CDT.
* At 909 PM CDT, severe thunderstorms were located along a line
extending from near Verona to near New Wren to near Pala Alto,
moving east at 50 mph.
These are very dangerous storms.
HAZARD...80 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
* Locations impacted include...
Tupelo, Amory, Aberdeen, Fulton, Verona, Tombigbee State Park,
Shannon, Plantersville, Mantachie, Smithville, Tremont, Prairie,
New Salem, New Wren, Evergreen, Clay, Nettleton, Hatley, Gattman
and Abney.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across Monroe County Mississippi. SEEK SHELTER NOW
inside a sturdy structure and stay away from windows!
&&
LAT...LON 3368 8872 3407 8872 3408 8875 3423 8878
3440 8816 3375 8825 3374 8833 3369 8836
3369 8839 3367 8842
TIME...MOT...LOC 0209Z 249DEG 45KT 3416 8869 3395 8855 3372 8873
HAIL...<.75IN
WIND...80MPH
$$1 follow-up statement
312
WWUS54 KMEG 100251
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
951 PM CDT Fri Apr 9 2021
MSC057-081-095-100301-
/O.EXP.KMEG.SV.W.0099.000000T0000Z-210410T0300Z/
Itawamba MS-Lee MS-Monroe MS-
951 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR ITAWAMBA...SOUTHERN LEE AND
MONROE COUNTIES WILL EXPIRE AT 1000 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Mississippi.
LAT...LON 3368 8872 3407 8872 3408 8875 3423 8878
3440 8816 3375 8825 3374 8833 3369 8836
3369 8839 3367 8842
TIME...MOT...LOC 0251Z 249DEG 45KT 3434 8812 3413 8798 3390 8816
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 7:14 PM CDT | Tornado Warning | MEG | Lee, Pontotoc, Union | 31 min |
| Apr 9, 7:38 PM CDT | Special Weather Statement | MEG | Calhoun, Lafayette, Marshall, Yalobusha | 52 min |
| Apr 9, 7:45 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Pontotoc, Prentiss, Union | 45 min |
| Apr 9, 7:54 PM CDT | Flash Flood Warning | MEG | Lee, Pontotoc, Union | 5 hr |
| Apr 9, 8:01 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn, Tishomingo | 44 min |
| Apr 9, 8:09 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Prentiss, Tishomingo | 25 min |
| Apr 9, 8:13 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Lee, Pontotoc | 47 min |
| Apr 9, 8:31 PM CDT | Areal Flood Advisory | MEG | Itawamba, Lee, Prentiss | 3 hr |
| Apr 9, 8:38 PM CDT | Areal Flood Advisory | MEG | Alcorn, Tippah, Tishomingo | 3 hr |
| Apr 9, 8:38 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Monroe | 52 min |
| Apr 9, 8:55 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 50 min |
| Apr 9, 9:04 PM CDT | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Lee, Pontotoc | 3 hr |
| Apr 9, 9:08 PM CDT | Areal Flood Advisory | MEG | Lee, Pontotoc | 28 min |
| Apr 9, 9:36 PM CDT | Flash Flood Warning | MEG | Lee, Pontotoc | 3 hr |
| Apr 10, 4:32 AM CDT | River Flood Warning | MEG | Lee | 8 hr |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.