Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 580
NWS STORM PREDICTION CENTER NORMAN OK
950 AM CST SAT DEC 21 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
SOUTHERN ARKANSAS
WESTERN AND CENTRAL LOUISIANA
EASTERN TEXAS
COASTAL WATERS
* EFFECTIVE THIS SATURDAY MORNING AND EVENING FROM 950 AM UNTIL
600 PM CST.
* PRIMARY THREATS INCLUDE...
SEVERAL INTENSE TORNADOES POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
A FEW LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 5 MILES EAST SOUTHEAST OF
ANGLETON TEXAS TO 40 MILES EAST NORTHEAST OF EL DORADO ARKANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU0).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INTENSIFY TODAY WHILE
MOVING RAPIDLY NORTHEAST ACROSS THE WATCH AREA. WHILE THE
ATMOSPHERE IS ONLY MARGINALLY UNSTABLE...THE PRESENCE OF VERY STRONG
VERTICAL SHEAR AND INTENSIFYING LARGE-SCALE FORCING FOR ASCENT WILL
PROMOTE EMBEDDED SUPERCELLS AND BOWING STRUCTURES CAPABLE OF
TORNADOES --SOME POSSIBLY SIGNIFICANT-- AND CORRIDORS OF WIND
DAMAGE.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.
MEAN STORM MOTION VECTOR 22050.
...MEAD
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 580 TORNADO AR LA TX CW 211550Z - 220000Z
AXIS..90 STATUTE MILES EAST AND WEST OF LINE..
5ESE LBX/ANGLETON TX/ - 40ENE ELD/EL DORADO AR/
..AVIATION COORDS.. 80NM E/W /52ENE PSX - 30ENE ELD/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 400. MEAN STORM MOTION VECTOR 22050.
LAT...LON 29079687 33439373 33439062 29079390
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 580 Status Report Messages:
STATUS REPORT #5 ON WW 580
VALID 212125Z - 212240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 E LBX TO
35 NW SHV.
..GARNER..12/21/13
ATTN...WFO...JAN...SHV...LCH...HGX...
&&
STATUS REPORT FOR WT 580
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-027-073-139-212240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT COLUMBIA
LAFAYETTE UNION
$$
LAC001-003-009-011-013-015-017-019-021-023-025-027-029-031-035-
039-041-043-049-053-055-059-061-065-067-069-073-079-081-083-085-
097-107-111-113-115-119-123-127-212240-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD BIENVILLE BOSSIER
CADDO CALCASIEU CALDWELL
CAMERON CATAHOULA CLAIBORNE
CONCORDIA DE SOTO EAST CARROLL
EVANGELINE FRANKLIN GRANT
JACKSON JEFFERSON DAVIS LAFAYETTE
LA SALLE LINCOLN MADISON
MOREHOUSE NATCHITOCHES OUACHITA
RAPIDES RED RIVER RICHLAND
SABINE ST. LANDRY TENSAS
UNION VERMILION VERNON
WEBSTER WEST CARROLL WINN
$$
TXC005-073-199-203-241-245-315-347-351-361-365-401-403-405-419-
457-212240-
TX
. TEXAS COUNTIES INCLUDED ARE
ANGELINA CHEROKEE HARDIN
HARRISON JASPER JEFFERSON
MARION NACOGDOCHES NEWTON
ORANGE PANOLA RUSK
SABINE SAN AUGUSTINE SHELBY
TYLER
$$
GMZ430-432-450-452-212240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
SABINE LAKE
CALCASIEU LAKE
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 580
VALID 212040Z - 212140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..12/21/13
ATTN...WFO...JAN...SHV...LCH...HGX...
&&
STATUS REPORT FOR WT 580
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-027-073-139-212140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT COLUMBIA
LAFAYETTE UNION
$$
LAC001-003-009-011-013-015-017-019-021-023-025-027-029-031-035-
039-041-043-049-053-055-059-061-065-067-069-073-079-081-083-085-
097-107-111-113-115-119-123-127-212140-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD BIENVILLE BOSSIER
CADDO CALCASIEU CALDWELL
CAMERON CATAHOULA CLAIBORNE
CONCORDIA DE SOTO EAST CARROLL
EVANGELINE FRANKLIN GRANT
JACKSON JEFFERSON DAVIS LAFAYETTE
LA SALLE LINCOLN MADISON
MOREHOUSE NATCHITOCHES OUACHITA
RAPIDES RED RIVER RICHLAND
SABINE ST. LANDRY TENSAS
UNION VERMILION VERNON
WEBSTER WEST CARROLL WINN
$$
TXC005-015-039-041-051-071-073-089-157-167-185-199-201-203-225-
239-241-245-291-313-315-321-339-347-351-361-365-373-401-403-405-
407-419-455-457-471-473-477-481-212140-
TX
. TEXAS COUNTIES INCLUDED ARE
ANGELINA AUSTIN BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FORT BEND
GALVESTON GRIMES HARDIN
HARRIS HARRISON HOUSTON
JACKSON JASPER JEFFERSON
LIBERTY MADISON MARION
MATAGORDA MONTGOMERY NACOGDOCHES
NEWTON ORANGE PANOLA
POLK RUSK SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON WHARTON
$$
GMZ330-335-350-355-430-432-450-452-212140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
SABINE LAKE
CALCASIEU LAKE
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 580
VALID 211940Z - 212040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..12/21/13
ATTN...WFO...JAN...SHV...LCH...HGX...
&&
STATUS REPORT FOR WT 580
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-027-073-139-212040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT COLUMBIA
LAFAYETTE UNION
$$
LAC001-003-009-011-013-015-017-019-021-023-025-027-029-031-035-
039-041-043-049-053-055-059-061-065-067-069-073-079-081-083-085-
097-107-111-113-115-119-123-127-212040-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD BIENVILLE BOSSIER
CADDO CALCASIEU CALDWELL
CAMERON CATAHOULA CLAIBORNE
CONCORDIA DE SOTO EAST CARROLL
EVANGELINE FRANKLIN GRANT
JACKSON JEFFERSON DAVIS LAFAYETTE
LA SALLE LINCOLN MADISON
MOREHOUSE NATCHITOCHES OUACHITA
RAPIDES RED RIVER RICHLAND
SABINE ST. LANDRY TENSAS
UNION VERMILION VERNON
WEBSTER WEST CARROLL WINN
$$
TXC005-015-039-041-051-071-073-089-157-167-185-199-201-203-225-
239-241-245-291-313-315-321-339-347-351-361-365-373-401-403-405-
407-419-455-457-471-473-477-481-212040-
TX
. TEXAS COUNTIES INCLUDED ARE
ANGELINA AUSTIN BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FORT BEND
GALVESTON GRIMES HARDIN
HARRIS HARRISON HOUSTON
JACKSON JASPER JEFFERSON
LIBERTY MADISON MARION
MATAGORDA MONTGOMERY NACOGDOCHES
NEWTON ORANGE PANOLA
POLK RUSK SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON WHARTON
$$
GMZ330-335-350-355-430-432-450-452-212040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
SABINE LAKE
CALCASIEU LAKE
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 580
VALID 211835Z - 211940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2099
..GARNER..12/21/13
ATTN...WFO...JAN...SHV...LCH...HGX...
&&
STATUS REPORT FOR WT 580
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-027-073-139-211940-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT COLUMBIA
LAFAYETTE UNION
$$
LAC001-003-009-011-013-015-017-019-021-023-025-027-029-031-035-
039-041-043-049-053-055-059-061-065-067-069-073-079-081-083-085-
097-107-111-113-115-119-123-127-211940-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD BIENVILLE BOSSIER
CADDO CALCASIEU CALDWELL
CAMERON CATAHOULA CLAIBORNE
CONCORDIA DE SOTO EAST CARROLL
EVANGELINE FRANKLIN GRANT
JACKSON JEFFERSON DAVIS LAFAYETTE
LA SALLE LINCOLN MADISON
MOREHOUSE NATCHITOCHES OUACHITA
RAPIDES RED RIVER RICHLAND
SABINE ST. LANDRY TENSAS
UNION VERMILION VERNON
WEBSTER WEST CARROLL WINN
$$
TXC005-015-039-041-051-071-073-089-157-167-185-199-201-203-225-
239-241-245-291-313-315-321-339-347-351-361-365-373-401-403-405-
407-419-455-457-471-473-477-481-211940-
TX
. TEXAS COUNTIES INCLUDED ARE
ANGELINA AUSTIN BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FORT BEND
GALVESTON GRIMES HARDIN
HARRIS HARRISON HOUSTON
JACKSON JASPER JEFFERSON
LIBERTY MADISON MARION
MATAGORDA MONTGOMERY NACOGDOCHES
NEWTON ORANGE PANOLA
POLK RUSK SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON WHARTON
$$
GMZ330-335-350-355-430-432-450-452-211940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
SABINE LAKE
CALCASIEU LAKE
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 580
VALID 211730Z - 211840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..12/21/13
ATTN...WFO...JAN...SHV...LCH...HGX...
&&
STATUS REPORT FOR WT 580
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-017-027-073-139-211840-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY CHICOT COLUMBIA
LAFAYETTE UNION
$$
LAC001-003-009-011-013-015-017-019-021-023-025-027-029-031-035-
039-041-043-049-053-055-059-061-065-067-069-073-079-081-083-085-
097-107-111-113-115-119-123-127-211840-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD BIENVILLE BOSSIER
CADDO CALCASIEU CALDWELL
CAMERON CATAHOULA CLAIBORNE
CONCORDIA DE SOTO EAST CARROLL
EVANGELINE FRANKLIN GRANT
JACKSON JEFFERSON DAVIS LAFAYETTE
LA SALLE LINCOLN MADISON
MOREHOUSE NATCHITOCHES OUACHITA
RAPIDES RED RIVER RICHLAND
SABINE ST. LANDRY TENSAS
UNION VERMILION VERNON
WEBSTER WEST CARROLL WINN
$$
TXC005-015-039-041-051-071-073-089-157-167-185-199-201-203-225-
239-241-245-291-313-315-321-339-347-351-361-365-373-401-403-405-
407-419-455-457-471-473-477-481-211840-
TX
. TEXAS COUNTIES INCLUDED ARE
ANGELINA AUSTIN BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FORT BEND
GALVESTON GRIMES HARDIN
HARRIS HARRISON HOUSTON
JACKSON JASPER JEFFERSON
LIBERTY MADISON MARION
MATAGORDA MONTGOMERY NACOGDOCHES
NEWTON ORANGE PANOLA
POLK RUSK SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON WHARTON
$$
GMZ330-335-350-355-430-432-450-452-211840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
SABINE LAKE
CALCASIEU LAKE
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (50%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (40%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.