Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 239
NWS Storm Prediction Center Norman OK
525 PM CDT Mon May 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Southeast Louisiana
Southern Mississippi
Coastal Waters
* Effective this Monday afternoon from 525 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...A fast moving line of thunderstorms over southwest
Louisiana will track across the watch area during the evening.
Damaging winds are the main threat with these storms, along with a
possible tornado or two along the leading edge of activity.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 40 miles northwest of
Intracoastal City LA to 55 miles southeast of Gulfport MS. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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 236...WW 237...WW 238...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27035.
...Hart
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 239
NWS Storm Prediction Center Norman OK
525 PM CDT Mon May 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Southeast Louisiana
Southern Mississippi
Coastal Waters
* Effective this Monday afternoon from 525 PM until Midnight CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 75
mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
A tornado or two possible
SUMMARY...A fast moving line of thunderstorms over southwest
Louisiana will track across the watch area during the evening.
Damaging winds are the main threat with these storms, along with a
possible tornado or two along the leading edge of activity.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 40 miles northwest of
Intracoastal City LA to 55 miles southeast of Gulfport MS. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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 236...WW 237...WW 238...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27035.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 239 SEVERE TSTM LA MS CW 132225Z - 140500Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
40NW 7R4/INTRACOASTAL CITY LA/ - 55SE GPT/GULFPORT MS/
..AVIATION COORDS.. 55NM N/S /26E LCH - 54S SJI/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 31139260 30788842 28898842 29259260
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 239 Status Report Messages:
STATUS REPORT #3 ON WW 239
VALID 140245Z - 140340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 S HUM TO
40 NNE ASD.
..SPC..05/14/24
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 239
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC051-057-071-075-087-140340-
LA
. LOUISIANA PARISHES INCLUDED ARE
JEFFERSON LAFOURCHE ORLEANS
PLAQUEMINES ST. BERNARD
$$
MSC045-047-059-109-140340-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
HANCOCK HARRISON JACKSON
PEARL RIVER
$$
GMZ532-534-536-538-550-552-555-557-140340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MISSISSIPPI SOUND
LAKE BORGNE
CHANDELEUR SOUND
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND 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 239
VALID 140115Z - 140240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SSE 7R4
TO 20 SSE MCB.
..SPC..05/14/24
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 239
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-051-057-063-071-075-087-089-091-093-095-101-103-105-
109-117-140240-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION JEFFERSON
LAFOURCHE LIVINGSTON ORLEANS
PLAQUEMINES ST. BERNARD ST. CHARLES
ST. HELENA ST. JAMES ST. JOHN THE BAPTIST
ST. MARY ST. TAMMANY TANGIPAHOA
TERREBONNE WASHINGTON
$$
MSC045-047-059-109-147-140240-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
HANCOCK HARRISON JACKSON
PEARL RIVER WALTHALL
$$
GMZ436-455-530-532-534-536-538-550-552-555-557-140240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
MISSISSIPPI SOUND
LAKE BORGNE
CHANDELEUR SOUND
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND 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 239
VALID 140045Z - 140140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SSW 7R4
TO 10 N 7R4 TO 50 E LFT TO 40 S HEZ.
..SPC..05/14/24
ATTN...WFO...LCH...LIX...
&&
STATUS REPORT FOR WS 239
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-033-037-045-047-051-057-063-071-075-087-089-091-093-
095-099-101-103-105-109-117-140140-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION EAST BATON ROUGE
EAST FELICIANA IBERIA IBERVILLE
JEFFERSON LAFOURCHE LIVINGSTON
ORLEANS PLAQUEMINES ST. BERNARD
ST. CHARLES ST. HELENA ST. JAMES
ST. JOHN THE BAPTIST ST. MARTIN ST. MARY
ST. TAMMANY TANGIPAHOA TERREBONNE
WASHINGTON
$$
MSC005-045-047-059-109-113-147-140140-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
AMITE HANCOCK HARRISON
JACKSON PEARL RIVER PIKE
WALTHALL
$$
GMZ435-436-455-530-532-534-536-538-550-552-555-557-140140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
VERMILION BAY
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
MISSISSIPPI SOUND
LAKE BORGNE
CHANDELEUR SOUND
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
COASTAL WATERS FROM PASCAGOULA MISSISSIPPI TO STAKE ISLAND 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 (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
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 (90%)
|
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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