Alert archive / Mississippi / Tornado Warnings in 2011

Tornado Warning 76, NWS New Orleans, LA

September 3, 2011Hancock County, Harrison County, Mississippi

NWS New Orleans, LA issued this tornado warning at Sep 3, 2011, 12:55 AM CDT for Hancock County, Harrison County, Mississippi. It was in force for 35 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 3, 2011, 12:55 AM CDT (05:55 UTC)
Expired
Sep 3, 2011, 1:30 AM CDT
In force
35 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon

Counties Hancock County, MS, Harrison County, MS

The radar

The Mobile radar (KMOB), 87 km from the middle of the area, began a volume at 05:58 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

Jackson, MS (KJAN), launched 00:00Z, 5.9 hours before the alert went out and 221 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.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2011-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2011-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1978 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

695 
WFUS54 KLIX 030555
TORLIX
MSC045-047-030630-
/O.NEW.KLIX.TO.W.0076.110903T0555Z-110903T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1255 AM CDT SAT SEP 3 2011

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN HANCOCK COUNTY IN SOUTHERN MISSISSIPPI...
  HARRISON COUNTY IN SOUTHERN MISSISSIPPI...
  THIS INCLUDES THE CITIES OF...GULFPORT...BILOXI...

* UNTIL 130 AM CDT

* AT 1253 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR BILOXI...
  MOVING NORTHWEST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LYMAN
  AND SAUCIER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

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.

&&

LAT...LON 3038 8889 3038 8901 3036 8907 3035 8909
      3063 8949 3065 8947 3065 8925 3069 8923
      3068 8918 3041 8886
TIME...MOT...LOC 0555Z 132DEG 42KT 3041 8901

$$

95/DM

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 3, 1:05 AM CDTTornado WarningLIXHarrison, Jackson25 min
Sep 3, 1:36 AM CDTTornado WarningLIXHarrison, Jackson24 min
Sep 3, 5:24 AM CDTRiver Flood WarningLIXHarrison4 days
Sep 3, 5:33 AM CDTRiver Flood WarningLIXHarrison3 days
Sep 3, 6:17 AM CDTTornado WarningLIXHancock, Pearl River43 min
Sep 3, 6:26 AM CDTTornado WarningLIXHancock, Harrison, Pearl River34 min
Sep 3, 6:58 AM CDTTornado WarningLIXHancock, Pearl River, Walthall47 min
Sep 3, 7:23 AM CDTFlash Flood WarningLIXHancock, Pearl River3 hr
Sep 3, 7:44 AM CDTTornado WarningLIXHancock, Pearl River61 min
Sep 3, 8:28 AM CDTTornado WarningLIXHarrison, Jackson47 min
Sep 3, 8:42 AM CDTTornado WarningLIXHancock, Harrison, Pearl River63 min
Sep 3, 9:13 AM CDTTornado WarningLIXHarrison, Jackson47 min
Sep 3, 9:23 AM CDTRiver Flood WarningLIXHarrison4 days
Sep 3, 9:35 AM CDTRiver Flood WarningLIXHancock37 hr
Sep 3, 10:17 AM CDTTornado WarningLIXHarrison, Jackson43 min
Sep 3, 11:22 AM CDTRiver Flood WarningLIXPearl River72 hr
Sep 3, 11:31 AM CDTRiver Flood WarningLIXPearl River3 days
Sep 3, 12:11 PM CDTTornado WarningLIXJackson49 min
Sep 3, 12:59 PM CDTTornado WarningLIXJackson46 min
Sep 3, 1:29 PM CDTTornado WarningLIXAmite31 min
Sep 3, 2:54 PM CDTTornado WarningLIXJackson36 min
Sep 3, 3:42 PM CDTFlash Flood WarningLIXJackson3 hr
Sep 3, 4:51 PM CDTTornado WarningLIXJackson24 min

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.