Severe Thunderstorm Warning 52, NWS New Orleans, LA

947 
WWUS54 KLIX 230203
SVSLIX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
903 PM CDT THU MAR 22 2012

MSC047-230213-
/O.CAN.KLIX.SV.W.0052.000000T0000Z-120323T0215Z/
HARRISON MS-
903 PM CDT THU MAR 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARRISON COUNTY
IS CANCELLED...

LAT...LON 3074 8862 3063 8882 3069 8889 3074 8885
TIME...MOT...LOC 0203Z 233DEG 23KT 3067 8875

$$

MSC059-230215-
/O.CON.KLIX.SV.W.0052.000000T0000Z-120323T0215Z/
JACKSON MS-
903 PM CDT THU MAR 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHWESTERN JACKSON COUNTY...

AT 900 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN 
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED ABOUT 17 MILES NORTH OF 
ST. MARTIN...MOVING NORTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. 
PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG 
BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3074 8862 3063 8882 3069 8889 3074 8885
TIME...MOT...LOC 0203Z 233DEG 23KT 3067 8875

$$

22/TD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
750 PM CDT THU MAR 22 2012

.UPDATE...

.SOUNDING DISCUSSION...

A CONTINUED MOIST ATMOSPHERE WITH A PW OF 1.55 INCHES. A NEARLY
SATURATED SOUNDING FROM THE SURFACE UP TO AROUND 630 MB. A TONGUE
OF VERY DRY AIR HAS WORKED ITS WAY DOWN TO JUST ABOVE 600 MB. A
LIGHT EASTERLY FLOW IN THE LOWEST LEVELS BELOW 1000 FEET ASL WITH
A LIGHT TO MODERATE SOUTHWESTERLY FLOW FROM AROUND 1000 FEET ASL
ALL THE WAY UP THROUGH THE UPPER LEVELS.

&&

.PREV DISCUSSION... /ISSUED 409 PM CDT THU MAR 22 2012/

DISSCUSSION...
SHOWERS AND THUNDERSTORMS ARE STILL ONGOING ACROSS THE MISSISSIPPI
GULF COAST. RIGHT NOW ACROSS MOST OF THE AREA THE SHOWERS AND
THUNDERSTORMS HAVE DIMINISHED AS THE BOUNDARY HAS SLOWLY MOVED TO
THE EAST OF THE AREA. HOWEVER...ADDITIONAL THUNDERSTORM
DEVELOPMENT IS POSSIBLE AS THE BOUNDARY HANGS UP ACROSS THE AREA.
SOME MODELS ACTUALLY HAVE THE BOUNDARY RETREATING BACK TO THE WEST
A TOUCH TONIGHT AND TOMORROW. THE NAM IS THE MOST AGGRESSIVE WITH
THIS HAPPENING. THE NAM SHOWS A SMALL THETA-E RIDGE PUSHING BACK
TO THE WEST AS WELL AS A NARROW TONGUE OF HIGHER INSTABILITY. THE
GFS AND ECMWF ARE NOT AS BULLISH...BUT THUNDERSTORMS ARE CURRENTLY
REDEVELOPING OVER THE GULF. HAVE DECIDED TO KEEP THUNDERSTORMS IN
THE FORECAST TONIGHT AS WELL AS FOR TOMORROW. A FEW OF THE
THUNDERSTORMS TOMORROW COULD BE SEVERE MAINLY ALONG THE COASTAL
AREAS OF SOUTHEAST LOUISIANA AND MISSISSIPPI. THE MAIN THREATS
WITH THE STORMS AGAIN WILL BE HEAVY RAIN AND GUSTY WINDS. HAVE
DECIDED TO EXTEND FLASH FLOOD WATCH FOR AREAS EAST OF INTERSTATE
55 THROUGH NOON FRIDAY DUE TO ADDITIONAL HEAVY RAIN POTENTIAL WITH
REDEVELOPING STORMS AND THE SLOW MOVEMENT OF THE SYSTEM.

CONDITIONS WILL IMPROVE SATURDAY AS THE UPPER LOW FINALLY EJECTS
OUT OF THE REGION. THE BOUNDARY WILL STILL BE JUST OFF THE
COAST...A FEW SHOWERS ARE STILL POSSIBLE SATURDAY MAINLY ALONG THE
COAST. DRIER AIR FILTERS INTO THE REGION SUNDAY AS HIGH PRESSURE
BUILDS IN THROUGH WEDNESDAY. HIGHS WILL BE IN THE UPPER 70S TO LOW
80S AND LOWS IN THE UPPER 50S TO LOW 60S THROUGH THE FORECAST
PERIOD. 13/MH

AVIATION...
DIFFICULT DISTINGUISHING ANY APPRECIABLE BREAKS WITHIN PERSISTENT
AREA OF CLOUDINESS BOUNCING BETWEEN IFF AND MVFR ALONG AND AHEAD OF
STALLED SURFACE TROUGH. GENERALLY VFR CONDITIONS EXPECTED THROUGH
ABOUT 04Z AT KBTR AND KMCB BEFORE WARM AIR ADVECTION BRINGS SOME IFR
AND LIFR FOG CONDITIONS GENERALLY BETWEEN 09Z-13Z. CONDITIONS ARE
EXPECTED TO IMPROVE TO VFR FROM WEST TO EAST GENERALLY AFTER 21Z.

MARINE...
A SMALL CRAFT ADVISORY IS STILL IN EFFECT FOR SOME AREAS OF THE
COASTAL WATERS. A STALLED FRONT ACROSS THE GULF SHOULD BE THE
FOCUS OF SOME THUNDERSTORM DEVELOPMENT OVER THE WATERS. SEAS WILL
DIMINISH TONIGHT TO 3 TO 5 FEET AND WINDS AROUND 5 TO 10 KNOTS.
HIGH PRESSURE BUILDS IN SATURDAY AND SETS IN PLACE THROUGH THE
REST OF THE FORECAST PERIOD. 13/MH

DECISION SUPPORT...
DSS CODE...ORANGE
DEPLOYED...NONE
ACTIVATION..ERMET DESK
ACTIVITIES...DECISION SUPPORT FOR GEISMAR LA INCIDENT
             OIL SPILL SUPPORT FOR BARATARIA BAY
             MONITORING FLASH FLOOD/RIVER FLOODING.

DECISION SUPPORT SERVICES (DSS) CODE LEGEND
GREEN  = NO WEATHER IMPACTS THAT REQUIRE ACTION
BLUE   = LONG FUSED WATCH/WARNING/ADVISORY IN EFFECT OR HIGH
         VISIBILITY EVENT
YELLOW = HEIGHTENED IMPACTS WITH SHORT FUSED
         WATCH/WARNING/ADVISORY ISSUANCES; RADAR SUPPORT
ORANGE = HIGH IMPACTS - SLIGHT TO MODERATE RISK SEVERE; NEARBY
         TROPICAL EVENTS; HAZMAT OR OTHER LARGE EPISODES
RED    = FULL ENGAGEMENT FOR MODERATE TO HIGH RISK SVR AND/OR
         DIRECT TROPICAL THREATS; EVENTS OF NATIONAL SIGNIFICANCE

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  57  78  56  80 /  30  30  10  10
BTR  58  81  58  82 /  30  20  10  10
ASD  63  80  60  81 /  70  40  10  10
MSY  64  81  63  81 /  70  40  10  10
GPT  65  78  62  81 /  70  50  20  10
PQL  65  79  61  82 /  60  60  20  20

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...FLASH FLOOD WATCH UNTIL NOON FRIDAY FOR THE FOLLOWING ZONES:
     LOWER JEFFERSON...LOWER LAFOURCHE...LOWER
     PLAQUEMINES...LOWER ST. BERNARD...LOWER
     TERREBONNE...NORTHERN TANGIPAHOA...ORLEANS...SOUTHERN
     TANGIPAHOA...ST. CHARLES...ST. JOHN THE BAPTIST...ST.
     TAMMANY...UPPER JEFFERSON...UPPER LAFOURCHE...UPPER
     PLAQUEMINES...UPPER ST. BERNARD...UPPER TERREBONNE...AND
     WASHINGTON.

GM...NONE.
MS...FLASH FLOOD WATCH UNTIL NOON FRIDAY FOR THE FOLLOWING ZONES:
     HANCOCK...HARRISON...JACKSON...PEARL RIVER...PIKE...AND
     WALTHALL.

GM...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
351 PM CDT THU MAR 22 2012

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-LAZ034>037-
039-040-046>050-056>072-MSZ068>071-077-080>082-232100-
LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND-
LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER OUT
20 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON OUT 20 NM-
COASTAL WATERS FROM BOOTHVILLE LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA OUT 20 NM-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER FROM
20 TO 60 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON FROM 20 TO 60 NM-
COASTAL WATERS FROM STAKE ISLAND LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER FROM 20 TO 60 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA FROM 20 TO
60 NM-POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA-
WASHINGTON-ST. TAMMANY-IBERVILLE-WEST BATON ROUGE-
EAST BATON ROUGE-ASCENSION-LIVINGSTON-ASSUMPTION-ST. JAMES-
ST. JOHN THE BAPTIST-UPPER LAFOURCHE-ST. CHARLES-UPPER JEFFERSON-
ORLEANS-UPPER PLAQUEMINES-UPPER ST. BERNARD-UPPER TERREBONNE-
LOWER TERREBONNE-LOWER LAFOURCHE-LOWER JEFFERSON-
LOWER PLAQUEMINES-LOWER ST. BERNARD-NORTHERN TANGIPAHOA-
SOUTHERN TANGIPAHOA-WILKINSON-AMITE-PIKE-WALTHALL-PEARL RIVER-
HANCOCK-HARRISON-JACKSON-
351 PM CDT THU MAR 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
LOUISIANA...SOUTH MISSISSIPPI AND THE ADJACENT COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

HEAVY RAIN...
A FLASH FLOOD WATCH IS IN EFFECT FOR AREAS EAST OF THE INTERSTATE
55 CORRIDOR THROUGH NOON FRIDAY AFTERNOON. RAINFALL TOTALS OF 2 TO
4 INCHES WITH LOCALIZED 6 INCH AMOUNTS ARE POSSIBLE ACROSS THIS
AREA. SEE WARNING TEXT FOR ADDITIONAL DETAILS.

STRONG THUNDERSTORMS...
ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE TONIGHT A FEW OF
THOSE COULD BE SEVERE...ESPECIALLY ALONG THE MISSISSIPPI COAST AND OVER
THE COASTAL WATERS EAST OF THE MOUTH OF THE MISSISSIPPI RIVER. THE
HIGHEST THREAT FROM ANY SEVERE THUNDERSTORMS WILL BE STRONG
DAMAGING WIND GUSTS.

RIVER FLOODING...
FLOOD WARNINGS ARE NOW EFFECT FOR NUMEROUS POINTS ALONG LOCAL
RIVERS. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS AND
FORECASTS FOR ADDITIONAL INFORMATION.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A FLASH FLOOD WATCH IS IN EFFECT FOR AREAS EAST OF THE INTERSTATE
55 CORRIDOR THROUGH NOON FRIDAY. AN ADDITIONAL 2 TO 4 INCHES ARE
POSSIBLE. STAY TUNED TO FORECAST FOR ANY CHANGES.

FLOOD WARNINGS WILL REMAIN IN EFFECT FOR NUMEROUS LOCATIONS ALONG
AREA RIVERS. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS
AND FORECASTS FOR ADDITIONAL INFORMATION.

SCATTERED THUNDERSTORMS WILL BE POSSIBLE FRIDAY AS A SLOW MOVING
STORM SYSTEM CONTINUES TO IMPACT THE AREA. A FEW OF THESE
THUNDERSTORMS COULD TURN SEVERE FRIDAY AFTERNOON. THERE IS
CURRENTLY A SLIGHT RISK OF SEVERE WEATHER IN PLACE FOR FRIDAY OVER
THE FAR EASTERN PORTIONS OF OUR CWA. THE PRIMARY THREAT FROM THESE
SEVERE THUNDERSTORMS WILL BE STRONG DAMAGING WIND GUSTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED FOR TONIGHT AND POSSIBLY FRIDAY DUE
TO THE THREAT OF SEVERE WEATHER AND POSSIBLE FLASH FLOODING.
PLEASE RELAY ANY REPORTS OF SEVERE WEATHER OR FLASH FLOODING TO
LOCAL LAW ENFORCEMENT OR DIRECTLY TO THE NATIONAL WEATHER SERVICE.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
619 PM CDT THU MAR 22 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0832 PM     TORNADO          12 NW LONG BEACH        30.48N 89.31W
03/21/2012  F0               HARRISON           MS   NWS STORM SURVEY

            NWS SURVEY CONCLUDED AN EF0 TORNADO 50 YARDS WIDE WAS ON
            THE GROUND FOR 1/4 MILE. WINDS ESTIMATED AT 70 MPH.
            DAMAGE TO A TRAILER AT VIDALIA AND WALNUT ROADS.

&&

KEG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
627 PM CDT THU MAR 22 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1235 AM     TORNADO          15 NNE GULFPORT         30.59N 88.97W
03/22/2012  F1               HARRISON           MS   NWS STORM SURVEY

            NWS STORM SURVEY CONFIRMED A TORNADO TOUCHED DOWN ON JOHN
            LEE ROAD AND ROBERTS ROAD. TREES WERE TWISTED... A TRAVEL
            TRAILER WAS FLIPPED... AND SEVERAL HOMES LOST A PORTION
            OF THEIR ROOF. THE PATHWIDTH WAS 100 YARDS AND WAS ON THE
            GROUND FOR NEARLY 1 MILE. ESTIMATED WIND SPEED WAS 90
            MPH.

&&

KEG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
635 PM CDT THU MAR 22 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0510 AM     TORNADO          5 N BILOXI              30.49N 88.93W
03/22/2012  F0               HARRISON           MS   NWS STORM SURVEY

            NWS STORM SURVEY CONFIRMED A TORNADO TOUCHED DOWN ALONG
            HWY 67 AT HWY 15. MOST OF THE DAMAGE WAS AT THE STARTING
            POINT WITH A LARGE SHED DOOR BLOWN IN CAUSING ROOF DAMAGE
            AND A PATIO ROOF LIFTED OFF. MOST OF THE REMAINDER OF THE
            DAMAGE WAS SHINGLES AND FENCES WITH AN END POINT IN
            COVENTRY ESTATES. THE PATHWIDTH WAS MEASURED AT 100 YARDS
            WITH DAMAGE TRACKED FOR AROUND 2 1/2 MILES. ESTIMATED
            WIND SPEED WAS 85 MPH.

&&

KEG