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 11
NWS Storm Prediction Center Norman OK
520 AM CST Sat Jan 11 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern and southern Louisiana
Far southern Mississippi
Coastal Waters
* Effective this Saturday morning from 520 AM until NOON CST.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph likely
SUMMARY...An extensive squall line across will progress east across
central into southeast Louisiana and southern Mississippi through
midday. Damaging winds will be the primary threat, but a few
embedded tornadoes will remain possible.
The tornado watch area is approximately along and 55 statute miles
east and west of a line from 20 miles west northwest of Mc Comb MS
to 40 miles southwest of Boothville 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 7...WW 8...WW 9...WW 10...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24040.
...Grams
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 11
NWS Storm Prediction Center Norman OK
520 AM CST Sat Jan 11 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern and southern Louisiana
Far southern Mississippi
Coastal Waters
* Effective this Saturday morning from 520 AM until NOON CST.
* Primary threats include...
A few tornadoes and a couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph likely
SUMMARY...An extensive squall line across will progress east across
central into southeast Louisiana and southern Mississippi through
midday. Damaging winds will be the primary threat, but a few
embedded tornadoes will remain possible.
The tornado watch area is approximately along and 55 statute miles
east and west of a line from 20 miles west northwest of Mc Comb MS
to 40 miles southwest of Boothville 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 7...WW 8...WW 9...WW 10...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24040.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 11 TORNADO LA MS CW 111120Z - 111800Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
20WNW MCB/MC COMB MS/ - 40SW BVE/BOOTHVILLE LA/
..AVIATION COORDS.. 50NM E/W /27W MCB - 20SE LEV/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24040.
LAT...LON 31298984 28928895 28929077 31299170
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 11 Status Report Messages:
STATUS REPORT #5 ON WW 11
VALID 111625Z - 111740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 ESE BVE
TO 35 ESE MSY TO 25 SSW PIB.
..GLEASON..01/11/20
ATTN...WFO...LIX...
&&
STATUS REPORT FOR WT 11
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MSC045-109-111740-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
HANCOCK PEARL RIVER
$$
GMZ538-555-111740-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BRETON SOUND
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
$$
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.
$$
STATUS REPORT #4 ON WW 11
VALID 111545Z - 111640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 65 SSW HUM
TO 20 SSE HUM TO 15 ENE HUM TO 20 WNW ASD TO 35 NE MCB.
..DEAN..01/11/20
ATTN...WFO...LIX...
&&
STATUS REPORT FOR WT 11
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC051-057-071-075-087-089-103-117-111640-
LA
. LOUISIANA PARISHES INCLUDED ARE
JEFFERSON LAFOURCHE ORLEANS
PLAQUEMINES ST. BERNARD ST. CHARLES
ST. TAMMANY WASHINGTON
$$
MSC045-109-147-111640-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
HANCOCK PEARL RIVER WALTHALL
$$
GMZ530-534-538-550-552-555-111640-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
LAKE BORGNE
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
$$
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.
$$
STATUS REPORT #3 ON WW 11
VALID 111435Z - 111540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 70 SSW HUM
TO 15 N MCB.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 32
..GLEASON..01/11/20
ATTN...WFO...LIX...
&&
STATUS REPORT FOR WT 11
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-051-057-063-071-075-087-089-093-095-103-105-109-117-
111540-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION JEFFERSON LAFOURCHE
LIVINGSTON ORLEANS PLAQUEMINES
ST. BERNARD ST. CHARLES ST. JAMES
ST. JOHN THE BAPTIST ST. TAMMANY TANGIPAHOA
TERREBONNE WASHINGTON
$$
MSC045-109-113-147-111540-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
HANCOCK PEARL RIVER PIKE
WALTHALL
$$
GMZ530-534-538-550-552-555-111540-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
LAKE BORGNE
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
$$
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.
$$
STATUS REPORT #2 ON WW 11
VALID 111330Z - 111440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E LFT TO
15 SSE HEZ.
..DEAN..01/11/20
ATTN...WFO...LIX...
&&
STATUS REPORT FOR WT 11
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-033-037-047-051-057-063-071-075-087-089-091-093-095-
103-105-109-117-121-125-111440-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION EAST BATON ROUGE
EAST FELICIANA IBERVILLE JEFFERSON
LAFOURCHE LIVINGSTON ORLEANS
PLAQUEMINES ST. BERNARD ST. CHARLES
ST. HELENA ST. JAMES ST. JOHN THE BAPTIST
ST. TAMMANY TANGIPAHOA TERREBONNE
WASHINGTON WEST BATON ROUGE WEST FELICIANA
$$
MSC005-045-109-113-147-157-111440-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
AMITE HANCOCK PEARL RIVER
PIKE WALTHALL WILKINSON
$$
GMZ530-534-538-550-552-555-111440-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
LAKE BORGNE
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
$$
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.
$$
STATUS REPORT #1 ON WW 11
VALID 111230Z - 111340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DEAN..01/11/20
ATTN...WFO...LIX...
&&
STATUS REPORT FOR WT 11
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC005-007-033-037-047-051-057-063-071-075-077-087-089-091-093-
095-103-105-109-117-121-125-111340-
LA
. LOUISIANA PARISHES INCLUDED ARE
ASCENSION ASSUMPTION EAST BATON ROUGE
EAST FELICIANA IBERVILLE JEFFERSON
LAFOURCHE LIVINGSTON ORLEANS
PLAQUEMINES POINTE COUPEE ST. BERNARD
ST. CHARLES ST. HELENA ST. JAMES
ST. JOHN THE BAPTIST ST. TAMMANY TANGIPAHOA
TERREBONNE WASHINGTON WEST BATON ROUGE
WEST FELICIANA
$$
MSC005-045-109-113-147-157-111340-
MS
. MISSISSIPPI COUNTIES INCLUDED ARE
AMITE HANCOCK PEARL RIVER
PIKE WALTHALL WILKINSON
$$
GMZ530-534-538-550-552-555-111340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
LAKE PONTCHARTRAIN AND LAKE MAUREPAS
LAKE BORGNE
BRETON SOUND
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON LOUISIANA OUT 20 NM
COASTAL WATERS FROM BOOTHVILLE LA TO SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM
$$
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
|
Mod (50%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Mod (30%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
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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