Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 175
NWS Storm Prediction Center Norman OK
135 PM CDT Fri May 8 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest and south central Louisiana
Extreme southeast Texas
Coastal Waters
* Effective this Friday afternoon and evening from 135 PM until
800 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms are beginning to intensify along an outflow
boundary across Louisiana, with storms now developing directly on
the boundary. The threat for bowing segments with damaging winds
will increase this afternoon as storms move southeastward along the
boundary. An isolated tornado and large hail will also be possible
with the strongest storms this afternoon.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 40 miles northwest of
Lake Charles LA to 30 miles north northeast of Houma LA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU5).
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.
&&
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 550. Mean storm motion vector
30035.
...Thompson
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 175
NWS Storm Prediction Center Norman OK
135 PM CDT Fri May 8 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest and south central Louisiana
Extreme southeast Texas
Coastal Waters
* Effective this Friday afternoon and evening from 135 PM until
800 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms are beginning to intensify along an outflow
boundary across Louisiana, with storms now developing directly on
the boundary. The threat for bowing segments with damaging winds
will increase this afternoon as storms move southeastward along the
boundary. An isolated tornado and large hail will also be possible
with the strongest storms this afternoon.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 40 miles northwest of
Lake Charles LA to 30 miles north northeast of Houma LA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU5).
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.
&&
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 550. Mean storm motion vector
30035.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 175 SEVERE TSTM LA TX CW 081835Z - 090100Z
AXIS..40 STATUTE MILES NORTH AND SOUTH OF LINE..
40NW LCH/LAKE CHARLES LA/ - 30NNE HUM/HOUMA LA/
..AVIATION COORDS.. 35NM N/S /39NW LCH - 26WNW HRV/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 30035.
LAT...LON 31129370 30559048 29399048 29969370
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 175 Status Report Messages:
STATUS REPORT #4 ON WW 175
VALID 082335Z - 090040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 W 7R4 TO
15 N 7R4 TO 45 WNW HUM TO 30 W HUM.
..KERR..05/08/20
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 175
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC099-101-090040-
LA
. LOUISIANA PARISHES INCLUDED ARE
ST. MARTIN ST. MARY
$$
GMZ435-090040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
VERMILION BAY
$$
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.
$$
STATUS REPORT #3 ON WW 175
VALID 082230Z - 082340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSW LCH
TO 15 W LFT TO 15 WSW MSY.
..KERR..05/08/20
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 175
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC007-023-045-057-089-093-095-099-101-109-113-082340-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASSUMPTION CAMERON IBERIA
LAFOURCHE ST. CHARLES ST. JAMES
ST. JOHN THE BAPTIST ST. MARTIN ST. MARY
TERREBONNE VERMILION
$$
GMZ435-082340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
VERMILION 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 #2 ON WW 175
VALID 082135Z - 082240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NE BPT TO
25 NW LFT TO 35 NNW MSY.
..KERR..05/08/20
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 175
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC001-005-007-019-023-045-047-053-055-057-089-093-095-099-101-
109-113-082240-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ASCENSION ASSUMPTION
CALCASIEU CAMERON IBERIA
IBERVILLE JEFFERSON DAVIS LAFAYETTE
LAFOURCHE ST. CHARLES ST. JAMES
ST. JOHN THE BAPTIST ST. MARTIN ST. MARY
TERREBONNE VERMILION
$$
GMZ432-435-082240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CALCASIEU LAKE
VERMILION BAY
$$
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.
$$
STATUS REPORT #1 ON WW 175
VALID 082035Z - 082140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNW BPT
TO 30 N LCH TO 35 ESE POE TO 30 SSE ESF.
..WENDT..05/08/20
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 175
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC001-003-005-007-019-023-033-039-045-047-053-055-057-063-077-
089-093-095-097-099-101-109-113-121-082140-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN ASCENSION
ASSUMPTION CALCASIEU CAMERON
EAST BATON ROUGE EVANGELINE IBERIA
IBERVILLE JEFFERSON DAVIS LAFAYETTE
LAFOURCHE LIVINGSTON POINTE COUPEE
ST. CHARLES ST. JAMES ST. JOHN THE BAPTIST
ST. LANDRY ST. MARTIN ST. MARY
TERREBONNE VERMILION WEST BATON ROUGE
$$
TXC361-082140-
TX
. TEXAS COUNTIES INCLUDED ARE
ORANGE
$$
GMZ432-435-082140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
CALCASIEU LAKE
VERMILION BAY
$$
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
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
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% (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.
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