Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 12, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Mar 17, 2021, 3:38 AM CDT for 4 counties in Mississippi. It was in force for 37 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, 3:38 AM CDT (08:38 UTC)
- Expired
- Mar 17, 2021, 4:15 AM CDT
- In force
- 37 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Calhoun County, MS, Lafayette County, MS, Pontotoc County, MS, Yalobusha County, MS
The radar
The Columbus AFB radar (KGWX), 95 km from the middle of the area, began a volume at 08:38 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 nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 8.6 hours before the alert went out and 108 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
- 2044 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
014
WUUS54 KMEG 170838
SVRMEG
MSC013-071-115-161-170915-
/O.NEW.KMEG.SV.W.0012.210317T0838Z-210317T0915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
338 AM CDT Wed Mar 17 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Southeastern Lafayette County in northwestern Mississippi...
Southeastern Yalobusha County in northwestern Mississippi...
Northern Calhoun County in northeastern Mississippi...
Southwestern Pontotoc County in northeastern Mississippi...
* Until 415 AM CDT.
* At 337 AM CDT, a severe thunderstorm was located 8 miles west of
Bruce, or 14 miles southeast of Water Valley, moving northeast at
55 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...
Bruce, Pittsboro, Randolph, Banner, Tula, Denmark, Paris, Thaxton,
Algoma, Toccopola, Big Creek, Robbs, Reid, Ellard, Pannell, Delay,
Tyson, Retreat, Wallfield and Benwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3383 8951 3387 8951 3387 8954 3402 8966
3439 8929 3415 8897 3407 8908 3407 8914
3403 8914 3379 8948
TIME...MOT...LOC 0837Z 218DEG 47KT 3400 8949
HAIL...1.00IN
WIND...60MPH
$$
SGW2 follow-up statements
268
WWUS54 KMEG 170857
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
357 AM CDT Wed Mar 17 2021
MSC161-170906-
/O.CAN.KMEG.SV.W.0012.000000T0000Z-210317T0915Z/
Yalobusha MS-
357 AM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN YALOBUSHA COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3389 8934 3411 8951 3415 8951 3439 8929
3415 8897 3407 8908 3407 8914 3403 8914
TIME...MOT...LOC 0856Z 223DEG 40KT 3413 8931
$$
MSC013-071-115-170915-
/O.CON.KMEG.SV.W.0012.000000T0000Z-210317T0915Z/
Lafayette MS-Calhoun MS-Pontotoc MS-
357 AM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT
FOR SOUTHEASTERN LAFAYETTE...NORTHERN CALHOUN AND SOUTHWESTERN
PONTOTOC COUNTIES...
At 356 AM CDT, a severe thunderstorm was located near Banner, or 18
miles east of Water Valley, moving northeast 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...
Bruce, Pittsboro, Banner, Tula, Denmark, Randolph, Paris, Thaxton,
Algoma, Toccopola, Robbs, Reid, Ellard, Pannell, Delay, Shepherd,
Matthews, Lafayette Springs, Sarepta and Wallfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3389 8934 3411 8951 3415 8951 3439 8929
3415 8897 3407 8908 3407 8914 3403 8914
TIME...MOT...LOC 0856Z 223DEG 40KT 3413 8931
HAIL...1.00IN
WIND...60MPH
$$
SGW814
WWUS54 KMEG 170906
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
406 AM CDT Wed Mar 17 2021
MSC013-071-115-170915-
/O.EXP.KMEG.SV.W.0012.000000T0000Z-210317T0915Z/
Lafayette MS-Calhoun MS-Pontotoc MS-
406 AM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAFAYETTE...
NORTHERN CALHOUN AND SOUTHWESTERN PONTOTOC COUNTIES WILL EXPIRE AT
415 AM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
is still possible with this thunderstorm.
LAT...LON 3389 8934 3411 8951 3415 8951 3439 8929
3415 8897 3407 8908 3407 8914 3403 8914
TIME...MOT...LOC 0905Z 218DEG 47KT 3420 8925
$$
SGWThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 5:55 PM CDT | Tornado Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 35 min |
| 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
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.