Alert archive / Mississippi / Tornado Warnings in 2021
Tornado Warning 64, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Sep 15, 2021, 6:22 AM CDT for Saint Tammany Parish, Louisiana; Hancock County, Pearl River County, Mississippi. It was in force for 23 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
- Sep 15, 2021, 6:22 AM CDT (11:22 UTC)
- Expired
- Sep 15, 2021, 6:45 AM CDT
- In force
- 23 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Saint Tammany Parish, LA, Hancock County, MS, Pearl River County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.4 hours before the alert went out and 19 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
- 136 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 589 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
955
WFUS54 KLIX 151122
TORLIX
LAC103-MSC045-109-151145-
/O.NEW.KLIX.TO.W.0064.210915T1122Z-210915T1145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
622 AM CDT Wed Sep 15 2021
The National Weather Service in New Orleans has issued a
* Tornado Warning for...
East central St. Tammany Parish in southeastern Louisiana...
West central Hancock County in southern Mississippi...
Southern Pearl River County in southern Mississippi...
* Until 645 AM CDT.
* At 621 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Stennis Space Center, or 11 miles south of
Picayune, moving northwest at 15 mph.
HAZARD...Tornado.
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.
* This tornadic thunderstorm will remain over mainly rural areas of
east central St. Tammany Parish, west central Hancock and southern
Pearl River Counties.
This includes the following Interstates...
Interstate 59 in Louisiana between mile markers 10 and 11.
Interstate 59 in Mississippi between mile markers 1 and 3.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement 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 3034 8954 3031 8963 3047 8974 3054 8960
TIME...MOT...LOC 1121Z 149DEG 13KT 3037 8962
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$1 follow-up statement
461
WWUS54 KLIX 151136
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
636 AM CDT Wed Sep 15 2021
LAC103-MSC045-109-151146-
/O.EXP.KLIX.TO.W.0064.000000T0000Z-210915T1145Z/
St. Tammany LA-Hancock MS-Pearl River MS-
636 AM CDT Wed Sep 15 2021
...THE TORNADO WARNING FOR EAST CENTRAL ST. TAMMANY PARISH...WEST
CENTRAL HANCOCK AND SOUTHERN PEARL RIVER COUNTIES WILL EXPIRE AT 645
AM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
LAT...LON 3034 8954 3031 8963 3047 8974 3054 8960
TIME...MOT...LOC 1136Z 149DEG 13KT 3041 8965
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 10:20 PM CDT | Special Weather Statement | LIX | Terrebonne | 55 min |
| Sep 14, 10:38 PM CDT | Tornado Warning | LIX | Terrebonne | 37 min |
| Sep 15, 2:33 AM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 117 min |
| Sep 15, 3:12 AM CDT | Areal Flood Advisory | LIX | Tangipahoa | 2 hr |
| Sep 15, 3:29 AM CDT | Tornado Warning | LIX | Plaquemines, Saint Bernard | 31 min |
| Sep 15, 4:09 AM CDT | Tornado Warning | LIX | Orleans, Saint Bernard | 13 min |
| Sep 15, 4:32 AM CDT | Special Marine Warning | LIX | 58 min | |
| Sep 15, 5:21 AM CDT | Flash Flood Warning | LIX | Saint Tammany, Tangipahoa, Washington | 3 hr |
| Sep 15, 7:14 AM CDT | Special Marine Warning | LIX | 91 min | |
| Sep 15, 7:45 AM CDT | Flash Flood Warning | LIX | Washington | 3 hr |
| Sep 15, 7:55 AM CDT | River Flood Warning | LIX | Saint Tammany | 4 days |
| Sep 15, 7:55 AM CDT | River Flood Warning | LIX | Saint Tammany | 49 hr |
| Sep 15, 8:18 AM CDT | Flash Flood Warning | LIX | Orleans, Saint Tammany, Washington | 5 hr |
| Sep 15, 8:28 AM CDT | Special Marine Warning | LIX | 62 min | |
| Sep 15, 8:37 AM CDT | River Flood Warning | LIX | Tangipahoa | 28 hr |
| Sep 15, 8:50 AM CDT | Special Marine Warning | LIX | 55 min | |
| Sep 15, 8:59 AM CDT | River Flood Warning | LIX | East Baton Rouge | 28 hr |
| Sep 15, 9:02 AM CDT | River Flood Warning | LIX | Saint Tammany | 6 days |
| Sep 15, 9:04 AM CDT | River Flood Warning | LIX | Saint Helena | 4 days |
| Sep 15, 9:08 AM CDT | River Flood Warning | LIX | Saint Tammany, Washington | 5 days |
| Sep 15, 9:08 AM CDT | River Flood Warning | LIX | Saint Tammany | 7 days |
| Sep 15, 9:59 AM CDT | Special Marine Warning | LIX | 61 min | |
| Sep 15, 3:39 PM CDT | River Flood Warning | LIX | Livingston | 42 hr |
| Sep 15, 3:39 PM CDT | River Flood Warning | LIX | Washington | 21 hr |
| Sep 15, 6:13 PM CDT | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge | 3 hr |
| Sep 15, 6:19 AM CDT | Areal Flood Advisory | LIX | Hancock, Harrison, Pearl River | 45 min |
| Sep 15, 7:04 AM CDT | Flash Flood Warning | LIX | Hancock, Pearl River | 3 hr |
| Sep 15, 8:11 AM CDT | Flash Flood Warning | LIX | Harrison | 5 hr |
| Sep 15, 8:22 AM CDT | Flash Flood Warning | LIX | Jackson | 6 hr |
| Sep 15, 8:37 AM CDT | River Flood Warning | LIX | Pike | 37 hr |
| Sep 15, 8:52 AM CDT | River Flood Warning | LIX | Hancock | 28 hr |
| Sep 15, 8:52 AM CDT | River Flood Warning | LIX | Harrison | 43 hr |
| Sep 15, 9:02 AM CDT | River Flood Warning | LIX | Pike, Walthall | 46 hr |
Nearby
Tornado Warnings in Mississippi, 2021Tornado Warnings in Louisiana, 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.