Severe weather Watches & Warnings December 9, 10 & 11

[CrazyC83]

SEL6

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 946
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CST TUE DEC 9 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

SOUTHWEST AND CENTRAL LOUISIANA
CENTRAL MISSISSIPPI
EXTREME SOUTHEAST TEXAS
COASTAL WATERS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1100 PM CST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES EAST NORTHEAST OF
GREENWOOD MISSISSIPPI TO 35 MILES WEST SOUTHWEST OF INTRACOASTAL
CITY LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 945. WATCH NUMBER 945 WILL NOT BE IN EFFECT AFTER
350 PM CST.

DISCUSSION...THE THREAT FOR SUPERCELLS/TORNADOES WILL PERSIST
THROUGH THE EVENING WITHIN A VERY MOIST AND MODERATELY UNSTABLE WARM
SECTOR ACROSS CENTRAL/SRN LA INTO MS. THE APPROACH OF A PRONOUNCED
MID LEVEL TROUGH FROM SW TX WILL CONTRIBUTE TO A FAVORABLE
ENVIRONMENT FOR ADDITIONAL THUNDERSTORM DEVELOPMENT INTO EARLY
TONIGHT ACROSS SW/SRN LA...WHILE THE ONGOING PRE-FRONTAL BAND OF
STORMS FROM CENTRAL LA INTO WRN MS SHOULD ALSO PERSIST. A VERY
MOIST BOUNDARY LAYER AND STRONG LOW-LEVEL SHEAR WILL SUPPORT A
THREAT FOR OCCASIONAL TORNADOES...ALONG WITH DAMAGING WINDS AND
ISOLATED LARGE HAIL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 22040.


...THOMPSON

[HURAKAN]

[jaxfladude]

My area(Northeast Florida) may be affected by strong storms by Thursday night...

[RL3AO]

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
457 PM CST TUE DEC 9 2008

MSC051-163-092345-
/O.CON.KJAN.TO.W.0274.000000T0000Z-081209T2345Z/
HOLMES MS-YAZOO MS-
457 PM CST TUE DEC 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR NORTHERN
YAZOO AND SOUTHWESTERN HOLMES COUNTIES...

...THIS IS A TORNADO EMERGENCY FOR THE WARNED AREA...

AT 457 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NEAR YAZOO CITY...MOVING NORTHEAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
BENTON BY 505 PM CST...
MIDWAY AND EDEN BY 515 PM CST...
COXBURG AND TOLARVILLE BY 525 PM CST...
BROZVILLE AND EBENEZER BY 530 PM CST...
8 MILES SOUTHEAST OF HOWARD BY 535 PM CST...
FRANKLIN BY 540 PM CST...

[CrazyC83]

OMG!!!!

[CrazyC83]

This is definitely a serious situation now.

[RL3AO]

It looks very big on radar.

[Bunkertor]

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
457 PM CST TUE DEC 9 2008

MSC051-163-092345-
/O.CON.KJAN.TO.W.0274.000000T0000Z-081209T2345Z/
HOLMES MS-YAZOO MS-
457 PM CST TUE DEC 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR NORTHERN
YAZOO AND SOUTHWESTERN HOLMES COUNTIES...

...THIS IS A TORNADO EMERGENCY FOR THE WARNED AREA...

http://www.wjtv.com/gulfcoastwest/jtv/n ... aming.html

[RL3AO]

About 40 miles NW of the radar site.

http://weather.cod.edu/cgi-bin/wwwradargif.pl/DGX.SRMV1.gif?station=DGX&product=SRMV1

[CrazyC83]

2215 2 SSE LOUISE HUMPHREYS MS 3296 9058 REPORTED TORNADO ON THE GROUND IN AN OPEN FIELD NEAR NO 3 ROAD. (JAN)

[CrazyC83]

Still in effect...bad news from Yazoo City...

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
515 PM CST TUE DEC 9 2008

MSC051-163-092345-
/O.CON.KJAN.TO.W.0274.000000T0000Z-081209T2345Z/
HOLMES MS-YAZOO MS-
515 PM CST TUE DEC 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CST FOR NORTH
CENTRAL YAZOO AND SOUTHERN HOLMES COUNTIES...

...THIS IS A TORNADO EMERGENCY FOR THE WARNED AREA...

AT 515 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NEAR MIDWAY...OR 10 MILES NORTHEAST OF YAZOO
CITY...MOVING NORTHEAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
COXBURG AND TOLARVILLE BY 520 PM CST...
EBENEZER BY 525 PM CST...
BROZVILLE AND 7 MILES SOUTHEAST OF HOWARD BY 530 PM CST...
FRANKLIN BY 535 PM CST...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY! DAMAGE HAS
BEEN REPORTED AROUND YAZOO CITY.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CST TUESDAY EVENING
FOR NORTHEAST LOUISIANA AND MISSISSIPPI.

LAT...LON 3313 9021 3301 8994 3285 9023 3292 9035
TIME...MOT...LOC 2315Z 228DEG 37KT 3295 9023

$$

CME

[CrazyC83]

Is this just one isolated bad cell or the beginning of a trend? If it is a trend, a PDS watch might not be a bad idea (now those are rare in December!)

[RL3AO]

It was just ahead of the squall line but now some new storms have developed south of the cell and is weakening its inflow.

[CrazyC83]

More tornadic cells developing in Louisiana.

[CrazyC83]

Yazoo City area: many trees down, roads blocked

Update: Houses damaged, sheds flattened. Sounds like at least EF2.

[CrazyC83]

New intense cells trying to develop farther south.

[CrazyC83]

MESOSCALE DISCUSSION 2429
NWS STORM PREDICTION CENTER NORMAN OK
0552 PM CST TUE DEC 09 2008

AREAS AFFECTED...SRN AND E CNTRL LA THROUGH MUCH OF MS AND NW AL

CONCERNING...TORNADO WATCH 946...

VALID 092352Z - 100115Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 946 CONTINUES.

THREAT FOR ISOLATED TORNADOES...POSSIBLY STRONG...WILL PERSIST WITH
LINE OF STORMS CONTAINING EMBEDDED SUPERCELLS AS IT MOVES EAST
THROUGH THE LOWER MS VALLEY. POTENTIALLY TORNADIC STORMS PERSIST
WITH SUPERCELLS ON NRN END OF THE LINE ACROSS N CNTRL MS...AND THIS
ACTIVITY WILL APPROACH THE NRN PART OF WW 946 BETWEEN 0030Z AND 01Z.
DEPENDING ON CONVECTIVE TRENDS...ANOTHER SMALL WW MIGHT BE NEEDED
NORTH AND EAST OF WW 946 BEFORE 01Z.

EARLY THIS EVENING AN EXPANSIVE PRE-FRONTAL LINE OF STORMS WITH
EMBEDDED SUPERCELLS FROM N CNTRL MS SWWD THROUGH SWRN LA IS MOVING
SLOWLY EAST WHILE INDIVIDUAL STORMS MOVE NE AT AROUND 35 KT. A WARM
FRONT EXTENDS FROM THE FL PANHANDLE NWWD THROUGH CNTRL MS. RICHER
GULF MOISTURE WITH MID TO UPPER 60S DEWPOINTS HAVE SPREAD NWD
THROUGH THE WARM SECTOR...WHILE DEWPOINTS GENERALLY IN THE UPPER 50S
RESIDE ON THE NORTH SIDE OF THIS BOUNDARY. A SUPERCELL WITH A
HISTORY OF TORNADOES AS IT MOVED THROUGH YAZOO COUNTY APPEARS TO
HAVE TEMPORARILY WEAKENED SOMEWHAT OR COULD BE UNDERGOING RECYCLING.
OTHER STORMS ARE INCREASING FARTHER SW ACROSS LA. GIVEN THE VERY
LARGE LOW LEVEL HODOGRAPHS ALONG THE INTENSIFYING LOW LEVEL JET
AXIS...ISOLATED TORNADOES WILL REMAIN POSSIBLE WITH ANY EMBEDDED
SUPERCELL STRUCTURES THIS EVENING. TORNADO POTENTIAL COULD BE
LOCALLY ENHANCED WITHIN WARM FRONTAL ZONE AS STORMS MOVE NE AND
CROSS THIS BOUNDARY.

AN EXPANSIVE AREA OF RAIN IS SPREADING EAST THROUGH NRN MS AND NRN
AL WHERE BOUNDARY LAYER DEWPOINTS ARE IN THE 50S. THESE FACTORS
COULD POTENTIALLY LIMIT NWD EXTENT OF DESTABILIZATION DESPITE THE
STRONG SLY LOW LEVEL JET. NEVERTHELESS...STORMS DEVELOPING ALONG THE
SRN EDGE OF THE STRATIFORM BAND WILL BE IN A FAVORABLE ZONE FOR
MOIST...UNSTABLE INFLOW. TRENDS WILL CONTINUE TO BE MONITORED FOR A
POSSIBLE TORNADO WATCH NE OF WW 946 INCLUDING PARTS OF NWRN AND W
CNTRL AL.

..DIAL.. 12/09/2008


ATTN...WFO...BMX...HUN...MEG...JAN...LIX...LCH...SHV...

LAT...LON 34298744 30269055 29869305 30719333 33209041 34528846
34298744

[CrazyC83]

MESOSCALE DISCUSSION 2430
NWS STORM PREDICTION CENTER NORMAN OK
0615 PM CST TUE DEC 09 2008

AREAS AFFECTED...SE LA THROUGH SE MS AND SW AL

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 100015Z - 100145Z

THERE IS SOME CONCERN THAT CONVECTION DEVELOPING FROM SE LA THROUGH
SE MS AND SW AL COULD DEEPEN AND INTENSIFY WITH TIME. THREAT WILL
EXIST FOR SUPERCELLS CAPABLE OF PRODUCING ISOLATED TORNADOES AND
LARGE HAIL.

A STRONG 50-60 KT SWLY LOW LEVEL JET WILL PERSIST DOWNSTREAM FROM
EWD ADVANCING POSITIVELY UPPER TROUGH. THIS WILL MAINTAIN A ZONE OF
LOW LEVEL WARM ADVECTION AND LARGE LOW LEVEL HODOGRAPHS NEAR COASTAL
SECTIONS OF THE LOWER MS VALLEY REGION. THE 00Z RAOB FROM NEW
ORLEANS SHOWS MODERATE SURFACE BASE INSTABILITY AND NO CAP OF
CONSEQUENCE. STORMS WILL LIKELY CONTINUE DEVELOPING WITHIN THE ZONE
OF LOW LEVEL ISENTROPIC ASCENT NEXT SEVERAL HOURS. THE NATURE OF THE
INITIATING MECHANISM AHEAD OF THE LINE SUGGEST SOME DISCRETE STORMS
WILL REMAIN LIKELY WITH AN ATTENDANT THREAT FOR SUPERCELLS CAPABLE
OF PRODUCING ISOLATED TORNADOES.

..DIAL.. 12/10/2008


ATTN...WFO...BMX...MOB...JAN...LIX...

LAT...LON 32068765 31188702 29578997 29639098 31558877 32068765

[Weatherfreak14]

Look at all the tornado warnings......

[jaxfladude]

A Special Prayer issued for all those affected...