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 21
NWS Storm Prediction Center Norman OK
1220 PM CST Tue Mar 4 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern and Southeastern Louisiana
Central and Southern Mississippi
Coastal Waters
* Effective this Tuesday afternoon and evening from 1220 PM until
700 PM CST.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging winds and isolated significant gusts to 80
mph likely
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A line of strong to severe thunderstorms continues to push
eastward towards eastern/southern LA along a progressive cold front.
The environment ahead of this front across eastern/southern LA and
into much of central and southern MS will become increasingly
favorable for continued severe thunderstorms over the next several
hours. Tornadoes are the primary severe hazard, with a few strong
(i.e. EF2+) tornadoes possible. Strong to potentially significant
(i.e. over 74 mph) wind gusts are possible within this line as well.
The tornado watch area is approximately along and 90 statute miles
east and west of a line from 15 miles east northeast of Greenwood MS
to 35 miles south southeast of Houma LA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 20...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24035.
...Mosier
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 21
NWS Storm Prediction Center Norman OK
1220 PM CST Tue Mar 4 2025
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern and Southeastern Louisiana
Central and Southern Mississippi
Coastal Waters
* Effective this Tuesday afternoon and evening from 1220 PM until
700 PM CST.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Scattered damaging winds and isolated significant gusts to 80
mph likely
Isolated large hail events to 1 inch in diameter possible
SUMMARY...A line of strong to severe thunderstorms continues to push
eastward towards eastern/southern LA along a progressive cold front.
The environment ahead of this front across eastern/southern LA and
into much of central and southern MS will become increasingly
favorable for continued severe thunderstorms over the next several
hours. Tornadoes are the primary severe hazard, with a few strong
(i.e. EF2+) tornadoes possible. Strong to potentially significant
(i.e. over 74 mph) wind gusts are possible within this line as well.
The tornado watch area is approximately along and 90 statute miles
east and west of a line from 15 miles east northeast of Greenwood MS
to 35 miles south southeast of Houma LA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 20...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1 inch. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24035.
...Mosier
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 21 TORNADO LA MS CW 041820Z - 050100Z
AXIS..90 STATUTE MILES EAST AND WEST OF LINE..
15ENE GWO/GREENWOOD MS/ - 35SSE HUM/HOUMA LA/
..AVIATION COORDS.. 80NM E/W /23ENE SQS - 19WSW LEV/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 33578828 29098896 29099194 33579140
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 21 Status Report Messages:
STATUS REPORT #1 ON WW 21
VALID 041920Z - 042040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SUPINIE..03/04/25
ATTN...WFO...LIX...LCH...JAN...MOB...
&&
STATUS REPORT FOR WT 21
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-009-025-029-033-035-037-041-045-047-051-055-057-063-
065-071-075-077-087-089-091-093-095-097-099-101-103-105-107-109-
117-121-125-042040-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION AVOYELLES
CATAHOULA CONCORDIA EAST BATON ROUGE
EAST CARROLL EAST FELICIANA FRANKLIN
IBERIA IBERVILLE JEFFERSON
LAFAYETTE LAFOURCHE LIVINGSTON
MADISON ORLEANS PLAQUEMINES
POINTE COUPEE ST. BERNARD ST. CHARLES
ST. HELENA ST. JAMES ST. JOHN THE BAPTIST
ST. LANDRY ST. MARTIN ST. MARY
ST. TAMMANY TANGIPAHOA TENSAS
TERREBONNE WASHINGTON WEST BATON ROUGE
WEST FELICIANA
$$
MSC001-005-007-011-015-019-021-023-025-029-031-035-037-039-041-
043-045-047-049-051-053-055-059-061-063-065-067-069-073-075-077-
079-083-085-087-089-091-097-099-101-103-105-109-111-113-121-123-
125-127-129-131-133-147-149-151-153-155-157-159-163-042040-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
ADAMS AMITE ATTALA
BOLIVAR CARROLL CHOCTAW
CLAIBORNE CLARKE CLAY
COPIAH COVINGTON FORREST
FRANKLIN GEORGE GREENE
GRENADA HANCOCK HARRISON
HINDS HOLMES HUMPHREYS
ISSAQUENA JACKSON JASPER
JEFFERSON JEFFERSON DAVIS JONES
KEMPER LAMAR LAUDERDALE
LAWRENCE LEAKE LEFLORE
LINCOLN LOWNDES MADISON
MARION MONTGOMERY NESHOBA
NEWTON NOXUBEE OKTIBBEHA
PEARL RIVER PERRY PIKE
RANKIN SCOTT SHARKEY
SIMPSON SMITH STONE
SUNFLOWER WALTHALL WARREN
WASHINGTON WAYNE WEBSTER
WILKINSON WINSTON YAZOO
$$
GMZ435-436-455-530-532-534-536-538-550-552-555-557-042040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
VERMILION AND WEST COTE BLANCHE BAYS
ATCHAFALAYA AND EAST COTE BLANCHE BAYS
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Probability of 1 or more strong (EF2-EF5) tornadoes
Mod (40%)
Wind
Probability of 10 or more severe wind events
Mod (60%)
Probability of 1 or more wind events > 65 knots
Mod (60%)
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.
