Alert archive / Mississippi / Tornado Warnings in 2011
Tornado Warning 69, NWS New Orleans, LA
NWS New Orleans, LA issued this tornado warning at Jul 18, 2011, 5:56 AM CDT for Harrison County, Mississippi. It was in force for 49 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
- Jul 18, 2011, 5:56 AM CDT (10:56 UTC)
- Expired
- Jul 18, 2011, 6:45 AM CDT
- In force
- 49 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
County Harrison County, MS
The radar
The Mobile radar (KMOB), 102 km from the middle of the area, began a volume at 10:57 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 nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 10.9 hours before the alert went out and 47 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
- 1688 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
619
WFUS54 KLIX 181056
TORLIX
MSC047-181145-
/O.NEW.KLIX.TO.W.0069.110718T1056Z-110718T1145Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
556 AM CDT MON JUL 18 2011
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN HARRISON COUNTY IN SOUTHERN MISSISSIPPI...
THIS INCLUDES THE CITY OF LONG BEACH...
* UNTIL 645 AM CDT
* AT 550 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
A WATERSPOUT MOVING ONSHORE NEAR PASS CHRISTIAN...OR NEAR BAY ST.
LOUIS...MOVING NORTH AT 20 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3034 8913 3032 8918 3032 8921 3030 8925
3030 8929 3030 8930 3033 8930 3035 8929
3037 8934 3050 8929 3048 8906
TIME...MOT...LOC 1055Z 201DEG 19KT 3033 8925
$$1 follow-up statement
996
WWUS54 KLIX 181136
SVSLIX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
636 AM CDT MON JUL 18 2011
MSC047-181146-
/O.EXP.KLIX.TO.W.0069.000000T0000Z-110718T1145Z/
HARRISON MS-
636 AM CDT MON JUL 18 2011
...THE TORNADO WARNING FOR SOUTHWESTERN HARRISON COUNTY WILL EXPIRE
AT 645 AM CDT...
THE WATERSPOUT HAS MOVED ONSHORE AND WEAKENED.
LAT...LON 3034 8913 3032 8918 3032 8921 3030 8925
3030 8929 3030 8930 3033 8930 3035 8929
3037 8934 3050 8929 3048 8906
TIME...MOT...LOC 1136Z 201DEG 19KT 3053 8916
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:09 AM CDT | Flash Flood Warning | LIX | Harrison | 3 hr |
| Jul 18, 8:22 AM CDT | River Flood Warning | LIX | Harrison | 27 hr |
| Jul 18, 9:10 AM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 4 hr |
Nearby
Tornado Warnings in Mississippi, 2011Every tornado warning in 2011Tornadoes in 2011
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.