Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 162
NWS STORM PREDICTION CENTER NORMAN OK
345 PM CDT FRI APR 17 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
TEXAS COASTAL PLAINS
COASTAL WATERS
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 345 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 2 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 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTHEAST OF PORT
ARTHUR TEXAS TO 25 MILES WEST OF ALICE TEXAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU2).
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 160...WW 161...
DISCUSSION...MCS OVER SE TX AND SEVERE CONVECTION WEST OF THE TX
COASTAL BEND WILL CONTINUE TO MOVE EWD ACROSS THE TEXAS COASTAL
PLAINS LATE THIS AFTERNOON INTO THE EVENING. THE ENVIRONMENT IS
CHARACTERIZED BUT ABUNDANT LOW-LEVEL MOISTURE...STRONG LOW-LEVEL
SHEAR AND SUFFICIENT INSTABILITY FOR LARGE HAIL AND TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24020.
...BROYLES/HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 162 TORNADO TX CW 172045Z - 180300Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
5SE BPT/PORT ARTHUR TX/ - 25W ALI/ALICE TX/
..AVIATION COORDS.. 50NM N/S /47WSW LCH - 54W CRP/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24020.
LAT...LON 29109395 26939844 28539844 30699395
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 162 Status Report Messages:
STATUS REPORT #4 ON WW 162
VALID 180030Z - 180140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W ALI TO
15 SSE NIR TO 25 S VCT TO 30 SSE VCT TO 35 S PSX TO 40 S LBX TO
30 ESE GLS TO 30 SSW BPT TO 10 WNW BPT TO 20 NNE BPT.
..MEAD..04/18/09
ATTN...WFO...CRP...HGX...LCH...
&&
STATUS REPORT FOR WT 162
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC007-057-131-245-249-273-355-361-391-409-180140-
TX
. TEXAS COUNTIES INCLUDED ARE
ARANSAS CALHOUN DUVAL
JEFFERSON JIM WELLS KLEBERG
NUECES ORANGE REFUGIO
SAN PATRICIO
$$
GMZ230-235-250-255-430-450-180140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O
STATUS REPORT #3 ON WW 162
VALID 172330Z - 180040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W ALI TO
5 NNW VCT TO 15 WSW HOU TO 35 NNE HOU.
..MEAD..04/17/09
ATTN...WFO...CRP...HGX...LCH...
&&
STATUS REPORT FOR WT 162
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC007-025-039-057-071-131-157-167-175-199-201-239-245-249-273-
291-321-355-361-391-409-469-481-180040-
TX
. TEXAS COUNTIES INCLUDED ARE
ARANSAS BEE BRAZORIA
CALHOUN CHAMBERS DUVAL
FORT BEND GALVESTON GOLIAD
HARDIN HARRIS JACKSON
JEFFERSON JIM WELLS KLEBERG
LIBERTY MATAGORDA NUECES
ORANGE REFUGIO SAN PATRICIO
VICTORIA WHARTON
$$
GMZ230-235-250-255-330-335-350-355-430-450-180040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O
STATUS REPORT #2 ON WW 162
VALID 172230Z - 172340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MEAD..04/17/09
ATTN...WFO...CRP...HGX...LCH...
&&
STATUS REPORT FOR WT 162
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC007-015-025-039-057-071-089-131-157-167-175-199-201-239-245-
249-273-291-297-311-321-355-361-391-409-469-473-481-172340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARANSAS AUSTIN BEE
BRAZORIA CALHOUN CHAMBERS
COLORADO DUVAL FORT BEND
GALVESTON GOLIAD HARDIN
HARRIS JACKSON JEFFERSON
JIM WELLS KLEBERG LIBERTY
LIVE OAK MCMULLEN MATAGORDA
NUECES ORANGE REFUGIO
SAN PATRICIO VICTORIA WALLER
WHARTON
$$
GMZ230-235-250-255-330-335-350-355-430-450-172340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O
STATUS REPORT #1 ON WW 162
VALID 172145Z - 172240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MEAD..04/17/09
ATTN...WFO...CRP...HGX...LCH...
&&
STATUS REPORT FOR WT 162
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC007-015-025-039-057-071-089-131-157-167-175-199-201-239-245-
249-273-291-297-311-321-355-361-391-409-469-473-481-172240-
TX
. TEXAS COUNTIES INCLUDED ARE
ARANSAS AUSTIN BEE
BRAZORIA CALHOUN CHAMBERS
COLORADO DUVAL FORT BEND
GALVESTON GOLIAD HARDIN
HARRIS JACKSON JEFFERSON
JIM WELLS KLEBERG LIBERTY
LIVE OAK MCMULLEN MATAGORDA
NUECES ORANGE REFUGIO
SAN PATRICIO VICTORIA WALLER
WHARTON
$$
GMZ230-235-250-255-330-335-350-355-430-450-172240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
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.