Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 138
NWS Storm Prediction Center Norman OK
1155 PM CDT Wed Apr 22 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Southwest to central Louisiana
* Effective this Wednesday night and Thursday morning from 1155
PM until 400 AM CDT.
* Primary threats include...
A couple intense tornadoes possible
Scattered damaging wind gusts to 70 mph possible
Isolated very large hail events to 2 inches in diameter possible
SUMMARY...A supercell or two may still develop through the early
morning with the risk for all severe hazards.
The tornado watch area is approximately along and 55 statute miles
east and west of a line from 65 miles east northeast of Fort Polk LA
to 25 miles east southeast of Lake Charles LA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8).
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 135...WW 137...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 25035.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 138 TORNADO LA 230455Z - 230900Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
65ENE POE/FORT POLK LA/ - 25ESE LCH/LAKE CHARLES LA/
..AVIATION COORDS.. 50NM E/W /19ENE AEX - 17ESE LCH/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25035.
LAT...LON 31409123 29999192 29999375 31409309
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 138 Status Report Messages:
STATUS REPORT #2 ON WW 138
VALID 230755Z - 230840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE LCH TO
40 NNE LFT TO 50 NNE LFT.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 455.
..LEITMAN..04/23/20
ATTN...WFO...LCH...
&&
STATUS REPORT FOR WT 138
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC001-055-097-099-230840-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA LAFAYETTE ST. LANDRY
ST. MARTIN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 138
VALID 230625Z - 230740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..LEITMAN..04/23/20
ATTN...WFO...LCH...
&&
STATUS REPORT FOR WT 138
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
LAC001-003-009-011-019-039-053-055-079-097-099-230740-
LA
. LOUISIANA PARISHES INCLUDED ARE
ACADIA ALLEN AVOYELLES
BEAUREGARD CALCASIEU EVANGELINE
JEFFERSON DAVIS LAFAYETTE RAPIDES
ST. LANDRY ST. MARTIN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Mod (30%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
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.
weather.gov 
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