Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 156
NWS Storm Prediction Center Norman OK
240 AM CDT Wed Apr 29 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern Louisiana
Far Southwest Mississippi
South-central/Southeast Texas
Coastal Waters
* Effective this Wednesday morning from 240 AM until 900 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A well-organized squall line will continue a general
south-southeastward progression across the region through the early
morning hours, with some additional and more isolated storms also
across south-central/southeast Texas. Damaging winds will be the
most common hazard, but severe hail is possible particularly across
the Texas portion of the Watch (south-central Texas).
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 60 miles northwest of
Victoria TX to 80 miles east of Lafayette LA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 154...WW 155...
AVIATION...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
30040.
...Guyer
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 156
NWS Storm Prediction Center Norman OK
240 AM CDT Wed Apr 29 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern Louisiana
Far Southwest Mississippi
South-central/Southeast Texas
Coastal Waters
* Effective this Wednesday morning from 240 AM until 900 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...A well-organized squall line will continue a general
south-southeastward progression across the region through the early
morning hours, with some additional and more isolated storms also
across south-central/southeast Texas. Damaging winds will be the
most common hazard, but severe hail is possible particularly across
the Texas portion of the Watch (south-central Texas).
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 60 miles northwest of
Victoria TX to 80 miles east of Lafayette LA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 154...WW 155...
AVIATION...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
30040.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 156 SEVERE TSTM LA MS TX CW 290740Z - 291400Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
60NW VCT/VICTORIA TX/ - 80E LFT/LAFAYETTE LA/
..AVIATION COORDS.. 50NM N/S /45ESE SAT - 38ESE BTR/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 30040.
LAT...LON 30339763 31069064 29329064 28599763
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 156 Status Report Messages:
STATUS REPORT #2 ON WW 156
VALID 291045Z - 291140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE AUS
TO 35 NW HOU TO 30 W BPT TO 25 ESE LCH TO 5 NNE LFT TO 15 S MCB.
..BROYLES..04/29/20
ATTN...WFO...LCH...LIX...HGX...EWX...
&&
STATUS REPORT FOR WS 156
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-023-033-045-047-057-063-093-099-101-109-113-121-
291140-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION CAMERON
EAST BATON ROUGE IBERIA IBERVILLE
LAFOURCHE LIVINGSTON ST. JAMES
ST. MARTIN ST. MARY TERREBONNE
VERMILION WEST BATON ROUGE
$$
TXC021-039-053-055-071-149-157-167-177-201-209-239-245-285-287-
321-453-481-491-291140-
TX
. TEXAS COUNTIES INCLUDED ARE
BASTROP BRAZORIA BURNET
CALDWELL CHAMBERS FAYETTE
FORT BEND GALVESTON GONZALES
HARRIS HAYS JACKSON
JEFFERSON LAVACA LEE
MATAGORDA TRAVIS WHARTON
WILLIAMSON
$$
GMZ330-335-350-355-430-432-435-450-452-455-291140-
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
VERMILION BAY
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
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 156
VALID 290935Z - 291040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE UTS
TO 40 N BPT TO 35 ESE POE TO 30 SSE ESF.
..BROYLES..04/29/20
ATTN...WFO...LCH...LIX...HGX...EWX...
&&
STATUS REPORT FOR WS 156
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC001-003-005-007-011-019-023-033-037-039-045-047-053-055-057-
063-077-091-093-097-099-101-109-113-121-125-291040-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN ASCENSION
ASSUMPTION BEAUREGARD CALCASIEU
CAMERON EAST BATON ROUGE EAST FELICIANA
EVANGELINE IBERIA IBERVILLE
JEFFERSON DAVIS LAFAYETTE LAFOURCHE
LIVINGSTON POINTE COUPEE ST. HELENA
ST. JAMES ST. LANDRY ST. MARTIN
ST. MARY TERREBONNE VERMILION
WEST BATON ROUGE WEST FELICIANA
$$
MSC005-157-291040-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
AMITE WILKINSON
$$
TXC015-021-039-053-055-071-089-149-157-167-177-199-201-209-239-
245-285-287-291-321-339-361-407-453-473-481-491-291040-
TX
. TEXAS COUNTIES INCLUDED ARE
AUSTIN BASTROP BRAZORIA
BURNET CALDWELL CHAMBERS
COLORADO FAYETTE FORT BEND
GALVESTON GONZALES HARDIN
HARRIS HAYS JACKSON
JEFFERSON LAVACA LEE
LIBERTY MATAGORDA MONTGOMERY
ORANGE SAN JACINTO TRAVIS
WALLER WHARTON WILLIAMSON
$$
GMZ330-335-350-355-430-432-435-450-452-455-291040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MATAGORDA BAY
GALVESTON BAY
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM
SABINE LAKE
CALCASIEU LAKE
VERMILION BAY
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM
$$
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
|
Low (10%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
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 (80%)
|
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% (EF2-EF5 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.
weather.gov 
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