Alert archive / Mississippi / Tornado Warnings in 2017
Tornado Warning 82, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Jun 21, 2017, 7:31 AM CDT for Hancock County, Mississippi; Saint Tammany Parish, Louisiana. It was in force for 29 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
- Jun 21, 2017, 7:31 AM CDT (12:31 UTC)
- Expired
- Jun 21, 2017, 8:00 AM CDT
- In force
- 29 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Saint Tammany Parish, LA, Hancock County, MS
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 20, 10:24 PM CDT | Tornado Watch | SPC | 12 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 0.5 hours before the alert went out and 9 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
- 262 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 465 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 485 m²/s²
- 0-3 km storm-relative helicity
- 506 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.3
The text
As transmitted.
796
WFUS54 KLIX 211231
TORLIX
LAC103-MSC045-211300-
/O.NEW.KLIX.TO.W.0082.170621T1231Z-170621T1300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
731 AM CDT WED JUN 21 2017
The National Weather Service in New Orleans has issued a
* Tornado Warning for...
Southeastern St. Tammany Parish in southeastern Louisiana...
Southwestern Hancock County in southern Mississippi...
* Until 800 AM CDT
* At 730 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Pearlington, or 11 miles west of Waveland, moving
northwest at 25 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 dangerous storm will be near...
Stennis Space Center around 750 AM CDT.
Pearl River around 800 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to 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 3013 8960 3012 8961 3014 8964 3015 8963
3016 8965 3043 8986 3047 8954 3021 8944
TIME...MOT...LOC 1230Z 153DEG 23KT 3024 8958
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$2 follow-up statements
959
WWUS54 KLIX 211249
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
749 AM CDT WED JUN 21 2017
LAC103-MSC045-211300-
/O.CON.KLIX.TO.W.0082.000000T0000Z-170621T1300Z/
St. Tammany LA-Hancock MS-
749 AM CDT WED JUN 21 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 AM CDT FOR EAST
CENTRAL ST. TAMMANY PARISH IN SOUTHEASTERN LOUISIANA AND WEST CENTRAL
HANCOCK COUNTIES...
At 748 AM CDT, a severe thunderstorm capable of producing a tornado
was located near the Pearl River west of Stennis Space Center, or 9
miles northeast of Slidell, moving northwest at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
east central St. Tammany Parish in southeastern Louisiana and west
central Hancock Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 3035 8957 3032 8968 3044 8977 3046 8962
TIME...MOT...LOC 1248Z 152DEG 28KT 3037 8965
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
TD185
WWUS54 KLIX 211301
SVSLIX
Severe Weather Statement
National Weather Service New Orleans LA
801 AM CDT WED JUN 21 2017
LAC103-MSC045-211311-
/O.EXP.KLIX.TO.W.0082.000000T0000Z-170621T1300Z/
St. Tammany LA-Hancock MS-
801 AM CDT WED JUN 21 2017
...THE TORNADO WARNING FOR EAST CENTRAL ST. TAMMANY PARISH IN
SOUTHEASTERN LOUISIANA AND WEST CENTRAL HANCOCK COUNTIES HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.
A tornado watch remains in effect until 1000 AM CDT for southeastern
Louisiana...and southern Mississippi.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
New Orleans.
LAT...LON 3035 8957 3032 8968 3044 8977 3046 8962
TIME...MOT...LOC 1301Z 153DEG 23KT 3044 8969
$$
TDThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 9:21 PM CDT | River Flood Warning | LIX | Hancock | 48 hr |
| Jun 20, 10:09 PM CDT | Flash Flood Warning | LIX | Hancock, Harrison | 6 hr |
| Jun 21, 3:43 AM CDT | Flash Flood Warning | LIX | Harrison | 3 hr |
| Jun 21, 4:59 AM CDT | Tornado Warning | LIX | Hancock, Harrison | 31 min |
| Jun 21, 7:40 AM CDT | Tornado Warning | LIX | Hancock | 35 min |
| Jun 21, 8:11 AM CDT | Tornado Warning | LIX | Harrison | 34 min |
| Jun 21, 8:12 AM CDT | Tornado Warning | LIX | Hancock | 18 min |
| Jun 21, 8:30 AM CDT | Tornado Warning | LIX | Hancock, Pearl River | 34 min |
| Jun 21, 8:42 AM CDT | Tornado Warning | LIX | Harrison | 33 min |
| Jun 21, 8:45 AM CDT | Tornado Warning | LIX | Hancock, Harrison | 30 min |
| Jun 21, 9:11 AM CDT | Tornado Warning | LIX | Hancock, Harrison | 19 min |
| Jun 21, 2:35 PM CDT | Tornado Warning | LIX | Hancock | 14 min |
| Jun 21, 3:21 PM CDT | Severe Thunderstorm Warning | LIX | Hancock | 54 min |
| Jun 21, 3:21 PM CDT | Tornado Warning | LIX | Harrison | 24 min |
| Jun 21, 4:00 PM CDT | Coastal Flood Advisory | LIX | 48 hr | |
| Jun 21, 12:56 AM CDT | Special Marine Warning | LIX | 34 min | |
| Jun 21, 8:05 AM CDT | Special Marine Warning | LIX | 25 min | |
| Jun 21, 11:23 AM CDT | Special Marine Warning | LIX | 22 min | |
| Jun 21, 11:25 AM CDT | Small Craft Advisory | LIX | 52 hr | |
| Jun 21, 11:33 AM CDT | Tornado Warning | LIX | Orleans | 13 min |
| Jun 21, 11:40 AM CDT | Special Marine Warning | LIX | 50 min | |
| Jun 21, 11:56 AM CDT | Areal Flood Advisory | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 2 hr |
| Jun 21, 12:53 PM CDT | Special Marine Warning | LIX | 37 min | |
| Jun 21, 12:53 PM CDT | Tornado Warning | LIX | Livingston, Saint John the Baptist, Tangipahoa | 37 min |
| Jun 21, 1:26 PM CDT | Tornado Warning | LIX | Livingston | 19 min |
| Jun 21, 1:33 PM CDT | Special Weather Statement | LIX | Saint John the Baptist | 57 min |
| Jun 21, 2:11 PM CDT | Special Marine Warning | LIX | 19 min | |
| Jun 21, 2:38 PM CDT | Special Marine Warning | LIX | 37 min | |
| Jun 21, 3:06 PM CDT | Special Marine Warning | LIX | 24 min | |
| Jun 21, 4:44 PM CDT | Small Craft Advisory | LIX | 47 hr |
Nearby
Tornado Warnings in Mississippi, 2017Tornado Warnings in Louisiana, 2017Every tornado warning in 2017Tornadoes in 2017
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.