Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 216, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Dec 11, 2021, 3:59 AM CST for 4 counties in Mississippi. It was in force for 31 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
- Dec 11, 2021, 3:59 AM CST (09:59 UTC)
- Expired
- Dec 11, 2021, 4:30 AM CST
- In force
- 31 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lafayette County, MS, Lee County, MS, Pontotoc County, MS, Union County, MS
The radar
The Columbus AFB radar (KGWX), 83 km from the middle of the area, began a volume at 10:03 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 |
|---|---|---|---|
| Dec 10, 6:21 PM CST | Tornado Watch | SPC | 10 hr |
| Dec 10, 10:44 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 11, 3:41 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 10.0 hours before the alert went out and 100 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
- 1725 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 759 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 398 m²/s²
- 0-3 km storm-relative helicity
- 420 m²/s²
- Significant tornado parameter
- 4.8
- Supercell composite
- 16.2
The text
As transmitted.
280
WUUS54 KMEG 110959
SVRMEG
MSC071-081-115-145-111030-
/O.NEW.KMEG.SV.W.0216.211211T0959Z-211211T1030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
359 AM CST Sat Dec 11 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Southeastern Lafayette County in northwestern Mississippi...
Pontotoc County in northeastern Mississippi...
Southeastern Union County in northeastern Mississippi...
Northwestern Lee County in northeastern Mississippi...
* Until 430 AM CST.
* At 359 AM CST, a severe thunderstorm was located near Tula, or 14
miles west of Pontotoc, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Tupelo, Pontotoc, Trace State Park, Ecru, New Harmony, Randolph,
Furrs, Denmark, Sherman, Thaxton, Algoma, Toccopola, Blue Springs,
Hortontown, Esperanza, Endville, Cherry Creek, Branyan, Ellistown
and Delay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for northeastern
and northwestern Mississippi. A Tornado Watch also remains in effect
until 1100 AM CST for northeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 500 AM CST for northeastern
and northwestern Mississippi. A Tornado Watch also remains in effect
until 1100 AM CST for northeastern Mississippi.
&&
LAT...LON 3416 8925 3416 8931 3431 8937 3450 8880
3424 8870 3414 8925
TIME...MOT...LOC 0959Z 252DEG 41KT 3425 8926
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SWB2 follow-up statements
711
WWUS54 KMEG 111019
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
419 AM CST Sat Dec 11 2021
MSC071-081-115-145-111030-
/O.CON.KMEG.SV.W.0216.000000T0000Z-211211T1030Z/
Lafayette MS-Pontotoc MS-Union MS-Lee MS-
419 AM CST Sat Dec 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM CST
FOR EAST CENTRAL LAFAYETTE...PONTOTOC...SOUTHEASTERN UNION AND
NORTHWESTERN LEE COUNTIES...
At 419 AM CST, a severe thunderstorm was located near Ecru, or near
Pontotoc, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Tupelo, Pontotoc, Trace State Park, Ecru, New Harmony, Randolph,
Furrs, Sherman, Thaxton, Algoma, Toccopola, Blue Springs, Hortontown,
Esperanza, Endville, Cherry Creek, Branyan, Ellistown, Jug Fork and
Flowerdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 500 AM CST for northeastern
and northwestern Mississippi. A Tornado Watch also remains in effect
until 1100 AM CST for northeastern Mississippi.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3415 8923 3433 8930 3450 8880 3424 8870
TIME...MOT...LOC 1019Z 252DEG 41KT 3432 8899
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SWB715
WWUS54 KMEG 111027
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
427 AM CST Sat Dec 11 2021
MSC071-081-115-145-111037-
/O.EXP.KMEG.SV.W.0216.000000T0000Z-211211T1030Z/
Lafayette MS-Pontotoc MS-Union MS-Lee MS-
427 AM CST Sat Dec 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LAFAYETTE...
PONTOTOC...SOUTHEASTERN UNION AND NORTHWESTERN LEE COUNTIES WILL
EXPIRE AT 430 AM CST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 500 AM CST for northeastern
and northwestern Mississippi. A Tornado Watch also remains in effect
until 1100 AM CST for northeastern Mississippi.
LAT...LON 3415 8923 3433 8930 3450 8880 3424 8870
TIME...MOT...LOC 1027Z 252DEG 41KT 3435 8889
$$
SWBThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 10:46 PM CST | Severe Thunderstorm Warning | MEG | Tunica | 44 min |
| Dec 10, 11:25 PM CST | Severe Thunderstorm Warning | MEG | DeSoto | 9 min |
| Dec 10, 11:48 PM CST | Severe Thunderstorm Warning | MEG | DeSoto, Marshall | 42 min |
| Dec 11, 12:46 AM CST | Severe Thunderstorm Warning | MEG | Tunica | 44 min |
| Dec 11, 12:48 AM CST | Severe Thunderstorm Warning | MEG | DeSoto, Tunica | 42 min |
| Dec 11, 2:12 AM CST | Areal Flood Advisory | MEG | DeSoto, Tunica | 3 hr |
| Dec 11, 2:41 AM CST | Severe Thunderstorm Warning | MEG | Benton, Marshall | 49 min |
| Dec 11, 2:44 AM CST | Areal Flood Advisory | MEG | DeSoto | 2 hr |
| Dec 11, 2:51 AM CST | Flash Flood Warning | MEG | DeSoto | 2 hr |
| Dec 11, 2:55 AM CST | Severe Thunderstorm Warning | MEG | Panola, Tallahatchie, Yalobusha | 50 min |
| Dec 11, 3:03 AM CST | Severe Thunderstorm Warning | MEG | Alcorn, Benton, Tippah | 42 min |
| Dec 11, 3:19 AM CST | Areal Flood Advisory | MEG | Benton, Marshall, Tippah | 3 hr |
| Dec 11, 4:03 AM CST | Flash Flood Warning | MEG | Calhoun, Lafayette, Lee, Pontotoc, Prentiss, Tallahatchie and 3 more | 2 hr |
| Dec 11, 4:07 AM CST | Special Weather Statement | MEG | Alcorn | 23 min |
| Dec 11, 4:21 AM CST | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 39 min |
| Dec 11, 4:25 AM CST | Tornado Warning | MEG | Itawamba, Prentiss, Tishomingo | 35 min |
| Dec 11, 4:55 AM CST | Areal Flood Advisory | MEG | Alcorn, Prentiss, Tippah, Tishomingo | 3 hr |
| Dec 11, 4:58 AM CST | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 47 min |
| Dec 11, 5:12 AM CST | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 33 min |
| Dec 11, 5:56 AM CST | Special Weather Statement | MEG | Monroe | 79 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.