Special Weather Statement, NWS Lake Charles, LA

Area Forecast Discussion
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
433 PM CDT Wed Sep 1 2021

.SHORT TERM (Now through Thursday night): A surface trough of low
pressure across southern Louisiana will continue to provide
scattered showers and thunderstorms across portions of southeast
Louisiana and extreme southeast Texas through the rest of the
afternoon into early this evening. Rain chances will diminish this
evening with the loss of diurnal heating but will return
Thursday...mainly afternoon into evening...as a weak cold front
moving southward across the southeast United States allows low to
mid level moisture to pool along and ahead of the front across
portions of southern Louisiana. A heat advisory will likely be
needed for the area again on Thursday as the combination of
hot temperatures and humid dewpoints will likely produce heat
index values of 108 degrees or higher for more than 2 hours Thurs
afternoon across most of southwest LA.

.LONG TERM (Friday through Wednesday): 500mb ridge across the
ARKLATEX region Friday will provide an increase in subsidence
across northern and eastern portions of Louisiana. This will
result in rain chances diminishing Friday into Saturday as low to
mid level moisture decreases across southern LA through the rest
of the week into the weekend. As the upper level ridge of high
pressure moves across the center of LA Saturday into
Sunday...subsidence will prevail through most of the weekend until
a 500mb shortwave trough across the southern plains Sunday moves
eastward across the lower Mississippi River valley Monday. This
will allow rain chances to increase early next week.
Otherwise...isolated seabreeze convection will prevail across
southern LA/southeast TX through the weekend. The rest of the
forecast period will depend on a 500mb low developing across
Louisiana Mon night into Tuesday. At the very least...a weakness
in the upper level ridge will persist across southern LA and this
will warrant at least a chance of showers and thunderstorms
through Wednesday as another weak cold front moves into the
southeast United States towards the end of the forecast period.
&&

.MARINE (Now through Thursday night)...Seas were near 2 feet with
southwest winds near 15 knots at buoy035 at 3:40 pm this
afternoon. Light south to southwest winds will prevail across the
coastal waters tonight as surface high pressure builds across the
eastern United States behind a weak cold front approaching the
northern Gulf of Mexico coastline late tonight. This boundary will
allow showers and thunderstorms to develop across the coastal
waters tonight through Thurs night as the front reaches the
northern Gulf coast late Thurs night. Winds will be light and
variable across the coastal waters Thursday into Thurs night as
the pressure gradient remains weak across southeast Texas and
southwest Louisiana. &&

.PRELIMINARY POINT TEMPS/POPS...
AEX  75  97  73  95 /  20  60  10  10
LCH  76  94  76  94 /  30  40  20  40
LFT  75  95  75  94 /  20  70  20  30
BPT  76  94  75  94 /  20  30  10  30
&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Heat Advisory until 6 PM CDT this evening for LAZ027>033-041>045-
     052>055-073-074.

TX...Heat Advisory until 6 PM CDT this evening for TXZ180-201-215-216-
     259>262.

GM...None.
&&

Castillo

Hazardous Weather Outlook
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
336 PM CDT Wed Sep 1 2021

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-022045-
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin-
Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron-East Cameron-
Tyler-Hardin-Jefferson-Orange-Northern Jasper-Northern Newton-
Southern Jasper-Southern Newton-
336 PM CDT Wed Sep 1 2021

...HEAT ADVISORY IN EFFECT UNTIL 6 PM CDT THIS EVENING...

This Hazardous Weather Outlook is for central Louisiana, south
central Louisiana, southwest Louisiana, west central Louisiana and
southeast Texas.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Showers & tstorms expected along and south of the I-10 corridor this
evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Typical weather pattern for southeast Texas and southern Louisiana
with scattered showers and isolated thunderstorms. Heat indices
running above the century mark during the afternoon hours.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-022045-
Sabine Lake-Calcasieu Lake-Vermilion Bay-
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City LA
out 20 NM-Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
336 PM CDT Wed Sep 1 2021

This Hazardous Weather Outlook is for the Gulf of Mexico and the
coastal lakes and bays of the Gulf of Mexico.

.DAY ONE...Tonight.

Isolated showers and thunderstorms over the coastal waters.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Isolated showers and thunderstorms over the coastal waters.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Castillo

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
302 PM CDT Wed Sep 1 2021

LAZ033-043-044-012045-
Acadia LA-Lafayette LA-St. Landry LA-
302 PM CDT Wed Sep 1 2021

...A strong thunderstorm will impact portions of northeastern
Lafayette, northeastern Acadia, northwestern St. Martin and south
central St. Landry Parishes through 345 PM CDT...

At 301 PM CDT, Doppler radar was tracking a strong thunderstorm OVER
Branch, or NEAR Church Point, moving east at 15 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Lafayette, Opelousas, Scott, Rayne, Carencro, Church Point,
Leonville, Sunset, Grand Coteau and Cankton.

This includes the following highways...
 Interstate 10 in Louisiana between mile markers 93 and 105.
 Interstate 49 between mile markers 1 and 15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3041 9197 3041 9198 3038 9198 3037 9199
      3036 9197 3022 9198 3027 9236 3045 9235
      3049 9197
TIME...MOT...LOC 2001Z 270DEG 13KT 3036 9228

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

54

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
343 PM CDT Wed Sep 1 2021

LAZ042-043-052-012130-
Acadia LA-Jefferson Davis LA-Vermilion LA-
343 PM CDT Wed Sep 1 2021

...A strong thunderstorm will impact portions of southwestern
Lafayette, northeastern Cameron, southeastern Jefferson Davis, Acadia
and northwestern Vermilion Parishes through 430 PM CDT...

At 342 PM CDT, Doppler radar was tracking a strong thunderstorm OVER
Egan, or NEAR Mermentau, moving south at 10 mph.

HAZARD...Winds in excess of 30 mph.  Rainfall rates up to one inch
         per hour.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Crowley, Eunice, Jennings, Rayne, Lake Arthur, Iota, Gueydan,
Mermentau, Evangeline and Morse.

This includes Interstate 10 in Louisiana between mile markers 65 and
87.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3004 9262 3004 9268 3047 9262 3047 9227
      3003 9229 3003 9262
TIME...MOT...LOC 2042Z 001DEG 7KT 3022 9249

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

53

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
410 PM CDT Wed Sep 1 2021

LAZ042-043-052-074-012200-
Acadia LA-Jefferson Davis LA-Vermilion LA-East Cameron LA-
410 PM CDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of northeastern Cameron,
southeastern Jefferson Davis, southwestern Acadia and northwestern
Vermilion Parishes through 500 PM CDT...

At 409 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from NEAR Egan to Lake Arthur to NEAR Lacassine
National Wildlife Refuge. Movement was south at 10 mph.

HAZARD...Winds in excess of 40 mph.  Rainfall rates of one to two
         inches per hour.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Jennings, Lake Arthur, Gueydan, Mermentau, Klondike, Morse,
Riceville, Wright, Egan and Thornwell.

This includes Interstate 10 in Louisiana between mile markers 69 and
77.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2997 9230 2985 9260 2985 9281 3013 9290
      3019 9267 3031 9248
TIME...MOT...LOC 2109Z 358DEG 10KT 3018 9247 3008 9266 3004 9299

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

53

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
434 PM CDT Wed Sep 1 2021

LAZ027-028-031-012215-
Allen LA-Vernon LA-Rapides LA-
434 PM CDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of southwestern Rapides,
northwestern Evangeline, northeastern Beauregard, southeastern Vernon
and northeastern Allen Parishes through 515 PM CDT...

At 433 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles east of Fort Polk to Fullerton to NEAR
Glenmora. Movement was southwest at 5 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Oakdale, Glenmora, Elizabeth, Pitkin, Fort Polk, Fullerton, Cravens,
Mcnary and Union Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3106 9291 3099 9255 3090 9258 3089 9260
      3084 9260 3077 9262 3080 9298 3088 9298
      3088 9312 3104 9326 3118 9307
TIME...MOT...LOC 2133Z 025DEG 5KT 3111 9308 3099 9297 3095 9260

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

53

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
456 PM CDT Wed Sep 1 2021

LAZ027-012245-
Vernon LA-
456 PM CDT Wed Sep 1 2021

...A strong thunderstorm will impact portions of western Vernon
Parish in west central Louisiana and northeastern Newton Counties
through 545 PM CDT...

At 456 PM CDT, Doppler radar was tracking a strong thunderstorm NEAR
Leesville, moving southwest at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Leesville, Anacoco, Fort Polk, Slagle, New Llano, Hornbeck, Burr
Ferry and Pickering.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3116 9306 3092 9336 3110 9356 3111 9354
      3115 9355 3116 9354 3117 9354 3118 9353
      3119 9356 3120 9355 3122 9355 3123 9354
      3123 9355 3128 9350 3128 9344 3136 9339
      3136 9334
TIME...MOT...LOC 2156Z 037DEG 15KT 3121 9324

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

53

Special Weather Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
501 PM CDT Wed Sep 1 2021

LAZ074-012245-
East Cameron LA-
501 PM CDT Wed Sep 1 2021

...A strong thunderstorm will impact portions of northeastern
Cameron, southwestern Jefferson Davis and southeastern Calcasieu
Parishes through 545 PM CDT...

At 501 PM CDT, Doppler radar was tracking a strong thunderstorm NEAR
Lacassine National Wildlife Refuge, moving west at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Cameron, Lacassine National Wildlife Refuge, Sweet Lake, Gibbstown
and Hacketts Corner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2988 9324 2989 9323 2991 9324 3005 9324
      3005 9313 3004 9313 3004 9287 2982 9281
      2982 9324
TIME...MOT...LOC 2201Z 090DEG 13KT 2996 9297

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

53