Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 131
NWS STORM PREDICTION CENTER NORMAN OK
1100 AM CDT TUE MAR 18 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SMALL PART OF SOUTH CENTRAL ARKANSAS
PARTS OF NORTHERN AND WESTERN LOUISIANA
LARGE PART OF SOUTHEAST TEXAS
COASTAL WATERS
EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1100 AM UNTIL 700
PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 2 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EITHER SIDE OF A LINE FROM 55 MILES WEST SOUTHWEST OF
COLLEGE STATION TEXAS TO MONROE LOUISIANA. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU1).
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...CONTINUE...WW 130...
DISCUSSION...AS STRONG UPPER SYSTEM APPROACHES SRN
TX...THUNDERSTORMS WILL RAPIDLY INCREASE IN NUMBER AND INTENSITY
AHEAD OF COLD FRONT NOW MOVING EWD ACROSS SRN TX. VERY STRONG DEEP
LAYER SHEAR PROFILES COUPLED WITH A DEEP MOIST MDTLY UNSTABLE AIR
MASS SUPPORTS TORNADIC SUPERCELLS. POTENTIAL FOR STRONG TORNADOS TO
OCCUR GIVEN THE STRENGTH OF THE WINDS FIELDS AND FAVORABLE
THERMODYNAMICS.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 24040.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 131 TORNADO AR LA TX CW 181600Z - 190000Z
AXIS..90 STATUTE MILES EITHER SIDE OF LINE..
55WSW CLL/COLLEGE STATION TX/ - MLU/MONROE LA/
..AVIATION COORDS.. 80NM EITHER SIDE /25E AUS - MLU/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 24040.
LAT...LON 31469783 33709265 31319141 29079662
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 131 Status Report Messages:
STATUS REPORT #6 ON WW 131
VALID 182235Z - 182340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WNW LBX
TO 5 SSE CLL TO 40 ESE ACT TO 25 NE ACT.
..DIAL..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-182340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-182340-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-039-041-071-073-157-161-167-185-199-201-225-241-245-
289-291-293-313-321-339-347-349-351-361-365-373-395-403-405-407-
419-455-457-471-473-182340-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA BRAZORIA
BRAZOS CHAMBERS CHEROKEE
FORT BEND FREESTONE GALVESTON
GRIMES HARDIN HARRIS
HOUSTON JASPER JEFFERSON
LEON LIBERTY LIMESTONE
MADISON MATAGORDA MONTGOMERY
NACOGDOCHES NAVARRO NEWTON
ORANGE PANOLA POLK
ROBERTSON SABINE SAN AUGUSTINE
SAN JACINTO SHELBY TRINITY
TYLER WALKER WALLER
$$
GMZ335-350-355-182340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
$$
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.
$$
STATUS REPORT #5 ON WW 131
VALID 182130Z - 182240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 463
..GUYER..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-182240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-182240-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-015-021-039-041-051-071-073-089-145-149-157-161-167-
185-199-201-225-239-241-245-287-289-291-293-313-321-331-339-347-
349-351-361-365-373-395-403-405-407-419-455-457-471-473-477-481-
182240-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA AUSTIN
BASTROP BRAZORIA BRAZOS
BURLESON CHAMBERS CHEROKEE
COLORADO FALLS FAYETTE
FORT BEND FREESTONE GALVESTON
GRIMES HARDIN HARRIS
HOUSTON JACKSON JASPER
JEFFERSON LEE LEON
LIBERTY LIMESTONE MADISON
MATAGORDA MILAM MONTGOMERY
NACOGDOCHES NAVARRO NEWTON
ORANGE PANOLA POLK
ROBERTSON SABINE SAN AUGUSTINE
SAN JACINTO SHELBY TRINITY
TYLER WALKER WALLER
WASHINGTON WHARTON
$$
GMZ330-335-350-355-182240-
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 131
VALID 182035Z - 182140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-182140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-182140-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-015-021-027-039-041-051-071-073-089-145-149-157-161-
167-185-199-201-225-239-241-245-287-289-291-293-313-321-331-339-
347-349-351-361-365-373-395-403-405-407-419-455-457-471-473-477-
481-182140-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA AUSTIN
BASTROP BELL BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FALLS
FAYETTE FORT BEND FREESTONE
GALVESTON GRIMES HARDIN
HARRIS HOUSTON JACKSON
JASPER JEFFERSON LEE
LEON LIBERTY LIMESTONE
MADISON MATAGORDA MILAM
MONTGOMERY NACOGDOCHES NAVARRO
NEWTON ORANGE PANOLA
POLK ROBERTSON SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON WHARTON
$$
GMZ330-335-350-355-182140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
$$
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.
$$
STATUS REPORT #3 ON WW 131
VALID 181945Z - 182040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 461
..GUYER..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-182040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-182040-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-015-021-027-039-041-051-071-073-089-145-149-157-161-
167-185-199-201-225-239-241-245-287-289-291-293-309-313-321-331-
339-347-349-351-361-365-373-395-403-405-407-419-455-457-471-473-
477-481-182040-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA AUSTIN
BASTROP BELL BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE COLORADO FALLS
FAYETTE FORT BEND FREESTONE
GALVESTON GRIMES HARDIN
HARRIS HOUSTON JACKSON
JASPER JEFFERSON LEE
LEON LIBERTY LIMESTONE
MCLENNAN MADISON MATAGORDA
MILAM MONTGOMERY NACOGDOCHES
NAVARRO NEWTON ORANGE
PANOLA POLK ROBERTSON
SABINE SAN AUGUSTINE SAN JACINTO
SHELBY TRINITY TYLER
WALKER WALLER WASHINGTON
WHARTON
$$
GMZ330-335-350-355-182040-
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 131
VALID 181855Z - 181940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 461
..GUYER..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-181940-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-181940-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-015-021-027-039-041-051-071-073-099-145-149-157-161-
167-185-199-201-217-225-241-245-287-289-291-293-309-313-331-339-
347-349-351-361-365-373-395-403-405-407-419-455-457-471-473-477-
181940-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA AUSTIN
BASTROP BELL BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE CORYELL FALLS
FAYETTE FORT BEND FREESTONE
GALVESTON GRIMES HARDIN
HARRIS HILL HOUSTON
JASPER JEFFERSON LEE
LEON LIBERTY LIMESTONE
MCLENNAN MADISON MILAM
MONTGOMERY NACOGDOCHES NAVARRO
NEWTON ORANGE PANOLA
POLK ROBERTSON SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON
$$
GMZ335-181940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GALVESTON BAY
$$
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.
$$
STATUS REPORT #1 ON WW 131
VALID 181730Z - 181840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..03/18/08
ATTN...WFO...SHV...LCH...FWD...HGX...EWX...
&&
STATUS REPORT FOR WT 131
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC139-181840-
AR
. ARKANSAS COUNTIES INCLUDED ARE
UNION
$$
LAC011-013-015-017-021-027-031-043-049-059-061-069-073-079-081-
085-111-115-119-127-181840-
LA
. LOUISIANA PARISHES INCLUDED ARE
BEAUREGARD BIENVILLE BOSSIER
CADDO CALDWELL CLAIBORNE
DE SOTO GRANT JACKSON
LA SALLE LINCOLN NATCHITOCHES
OUACHITA RAPIDES RED RIVER
SABINE UNION VERNON
WEBSTER WINN
$$
TXC001-005-015-021-027-039-041-051-071-073-099-145-149-157-161-
167-185-199-201-217-225-241-245-287-289-291-293-309-313-331-339-
347-349-351-361-365-373-395-403-405-407-419-455-457-471-473-477-
181840-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA AUSTIN
BASTROP BELL BRAZORIA
BRAZOS BURLESON CHAMBERS
CHEROKEE CORYELL FALLS
FAYETTE FORT BEND FREESTONE
GALVESTON GRIMES HARDIN
HARRIS HILL HOUSTON
JASPER JEFFERSON LEE
LEON LIBERTY LIMESTONE
MCLENNAN MADISON MILAM
MONTGOMERY NACOGDOCHES NAVARRO
NEWTON ORANGE PANOLA
POLK ROBERTSON SABINE
SAN AUGUSTINE SAN JACINTO SHELBY
TRINITY TYLER WALKER
WALLER WASHINGTON
$$
GMZ335-181840-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GALVESTON BAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
High (90%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (60%)
|
Wind
Probability of 10 or more severe wind events
|
High (80%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (40%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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.