Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 221, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Dec 29, 2021, 4:58 PM CST for Prentiss County, Tishomingo County, Mississippi. It was in force for 14 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 29, 2021, 4:58 PM CST (22:58 UTC)
- Expired
- Dec 29, 2021, 5:12 PM CST
- In force
- 14 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Prentiss County, MS, Tishomingo County, MS
The radar
The Columbus AFB radar (KGWX), 107 km from the middle of the area, began a volume at 22:57 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 29, 12:05 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 11.0 hours before the alert went out and 161 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
- 1900 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
166
WUUS54 KMEG 292258
SVRMEG
MSC117-141-292330-
/O.NEW.KMEG.SV.W.0221.211229T2258Z-211229T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
458 PM CST Wed Dec 29 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Central Tishomingo County in northeastern Mississippi...
Northeastern Prentiss County in northeastern Mississippi...
* Until 530 PM CST.
* At 457 PM CST, severe thunderstorms were located along a line
extending from near Walnut Grove to near Midway, moving east at 55
mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Iuka, J P Coleman State Park, Burnsville, Midway, Paden, Bacon
Springs, Oldham, Hazard Switch, Walker Siding, Holcut, Blythe
Crossing and Holts Spur.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi...and western Tennessee.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi...and western Tennessee.
&&
LAT...LON 3469 8812 3462 8842 3500 8825 3500 8820
3496 8818 3492 8815 3490 8813 3489 8810
TIME...MOT...LOC 2257Z 249DEG 47KT 3499 8810 3476 8826
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$1 follow-up statement
770
WWUS54 KMEG 292312
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
512 PM CST Wed Dec 29 2021
MSC117-141-292321-
/O.CAN.KMEG.SV.W.0221.000000T0000Z-211229T2330Z/
Tishomingo MS-Prentiss MS-
512 PM CST Wed Dec 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL TISHOMINGO AND
NORTHEASTERN PRENTISS COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled. However heavy rain is still possible with these
thunderstorms.
A Tornado Watch remains in effect until 700 PM CST for northeastern
Mississippi...and western Tennessee.
LAT...LON 3469 8812 3462 8842 3500 8825 3500 8820
3496 8818 3492 8815 3490 8813 3489 8810
TIME...MOT...LOC 2309Z 249DEG 47KT 3505 8791 3482 8807
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 9:46 PM CST | Areal Flood Advisory | MEG | Chickasaw, Itawamba, Monroe | 3 hr |
| Dec 28, 10:22 PM CST | Special Weather Statement | MEG | Monroe | 38 min |
| Dec 28, 10:37 PM CST | Flash Flood Warning | MEG | Monroe | 3 hr |
| Dec 29, 9:00 AM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Lee, Pontotoc, Yalobusha | 3 hr |
| Dec 29, 9:17 AM CST | Flash Flood Warning | MEG | Calhoun, Yalobusha | 3 hr |
| Dec 29, 12:14 PM CST | Areal Flood Warning | MEG | Calhoun, Chickasaw, Lee, Pontotoc, Yalobusha | 3 hr |
| Dec 29, 1:59 PM CST | Special Weather Statement | MEG | DeSoto | 31 min |
| Dec 29, 4:36 PM CST | Special Weather Statement | MEG | Calhoun | 24 min |
| Dec 29, 4:53 PM CST | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 52 min |
| Dec 29, 5:02 PM CST | Areal Flood Advisory | MEG | Prentiss | 2 hr |
| Dec 29, 5:06 PM CST | Tornado Warning | MEG | Calhoun, Chickasaw | 39 min |
| Dec 29, 5:29 PM CST | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Monroe | 46 min |
| Dec 29, 5:42 PM CST | Areal Flood Advisory | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 3 hr |
| Dec 29, 5:53 PM CST | Severe Thunderstorm Warning | MEG | Monroe | 37 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.