Special Weather Statement, NWS Lake Charles, LA

Area Forecast Discussion
National Weather Service Lake Charles LA
102 PM CDT Wed Aug 11 2021

.DISCUSSION...
For 18z TAF issuance.

&&

.AVIATION...
At this time, forecast soundings/time-height sections indicate VFR
conditions will generally prevail through the period...main
exceptions will be within thunderstorm activity which remains
possible, especially lower Acadiana, through the afternoon hours.
Per the usual, convection will die off towards sunset with loss of
heating. Some lower clouds will be possible overnight, but not
expected enough coverage to warrant ceilings. Likewise any
terminals which receives rain this afternoon could see brief
restrictions to visibility around sunrise. Winds will remain
light with high pressure ridging over the area.

25

&&

.PREV DISCUSSION... /issued 1100 AM CDT Wed Aug 11 2021/

DISCUSSION...
Latest radar trends indicate scattered convection over the
adjacent Gulf waters, mainly off the s-cntl LA coast, but better
coverage is noted farther upstream off the sern LA/srn MS coasts
in connection with an approaching erly wave. As weak lift pushes
over the area through the afternoon, along with likely sea breeze
development, expect to see additional coverage of showers/storms
develop, although with the 12z KLCH sounding coming in a little
drier than previous days', coverage may be a little tempered.

Other big question mark for the day is the heat. Obs over the last
few hours have shown temps/dewpoints fairly on point with
inherited grids which lead to max temps in the mid 90s inland
(perhaps a few spots touching the upper 90s during max heating)
with lower 90s srn 1/2. Apparent temps for the bulk of the
forecast area top out at or just below heat advisory criteria of
108F - main area of concern is again the nern zones (primarily
Avoyelles Parish) where apparent temps reach 110F for an hour or
so.

25

PREV DISCUSSION... /issued 620 AM CDT Wed Aug 11 2021/

AVIATION...
Isolated showers over the gulf are moving onshore into southeast
Texas and southern Louisiana. These storms will continue to
fall apart through the late morning hours before getting support
by daytime heating with showers and thunderstorms during the
afternoon hours down along the I-10 corridor. Storms ending
towards sunset.

PREV DISCUSSION... /issued 259 AM CDT Wed Aug 11 2021/

DISCUSSION...
A few showers seen on radar in the coastal waters this morning.
This activity will continue, and move near the coastal sections of
southwest Louisiana by sunrise.

Activity will increase in coverage later this afternoon, with the
best coverage in Louisiana, and less coverage in Texas. No severe
storms expected, but you will see some lightning and gusty winds
in the stronger storms.

This pattern continues for much of the next 7 days, with daily
showers and thunderstorms, starting in the coastal waters early
in the morning, and working their way inland through the morning,
moving north of the I-10 corridor by midday, before dissipating by
early evening.

High temperatures will be near normal, in the low to mid 90s. Max
heat indices in the afternoon will be in the 102-107 F range,
just below heat advisory criteria. Be sure to minimize how much
time you are in the heat, take plenty of breaks, drink plenty of
water.

As for the tropics, Tropical Storm Fred could be in the eastern
Gulf of Mexico this weekend, but poses no threat to our region.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  97  75  96  75 /  20  10  30   0
LCH  93  76  93  77 /  50  10  50  10
LFT  94  76  94  76 /  50  10  50  10
BPT  94  77  93  76 /  20  10  40  10

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...None.
&&

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Special Weather Statement
National Weather Service Lake Charles LA
154 PM CDT Wed Aug 11 2021

LAZ030-031-042-111945-
Jefferson Davis LA-Allen LA-Beauregard LA-
154 PM CDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northwestern
Jefferson Davis, southeastern Beauregard and southwestern Allen
Parishes through 245 PM CDT...

At 154 PM CDT, Doppler radar was tracking a strong thunderstorm over
Reeves, moving north at 10 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...
Reeves, Leblanc and Harmony.

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.

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 3040 9295 3044 9314 3069 9318 3060 9284
TIME...MOT...LOC 1854Z 193DEG 7KT 3049 9301

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

Warthen

Special Weather Statement
National Weather Service Lake Charles LA
236 PM CDT Wed Aug 11 2021

LAZ027-030-112000-
Beauregard LA-Vernon LA-
236 PM CDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northeastern
Beauregard and south central Vernon Parishes through 300 PM CDT...

At 236 PM CDT, Doppler radar was tracking a strong thunderstorm near
Tulla, or 9 miles southeast of De Ridder, moving north at 10 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...
De Ridder, Rosepine, Tulla and Bundick Lake.

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.

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 3070 9308 3070 9324 3077 9328 3093 9330
      3093 9302 3078 9304
TIME...MOT...LOC 1936Z 179DEG 9KT 3078 9316

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

Warthen

Special Weather Statement
National Weather Service Lake Charles LA
300 PM CDT Wed Aug 11 2021

LAZ045-053>055-112045-
Lower St. Martin LA-Iberia LA-Upper St. Martin LA-St. Mary LA-
300 PM CDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northeastern Iberia,
northwestern St. Mary and southeastern St. Martin Parishes through
345 PM CDT...

At 300 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles east of Charenton, or 9 miles northeast of Franklin, moving
northwest 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...
Franklin, Jeanerette, Baldwin, Ellerslie, Sorrel, Cote Blanche
Island, Glencoe, Charenton, Pierre Part and Centerville.

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.

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 2962 9147 2969 9163 2975 9161 2975 9158
      2976 9159 2976 9167 2974 9171 2976 9177
      2976 9173 2977 9176 3000 9166 3024 9150
      3010 9147 3010 9139 3006 9137 3003 9124
      3004 9123 2999 9126 2986 9120
TIME...MOT...LOC 2000Z 122DEG 13KT 2988 9139

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

Warthen

Special Weather Statement
National Weather Service Lake Charles LA
322 PM CDT Wed Aug 11 2021

LAZ033-045-112045-
St. Landry LA-Upper St. Martin LA-
322 PM CDT Wed Aug 11 2021

...A strong thunderstorm will impact portions of northwestern St.
Martin and southeastern St. Landry Parishes through 345 PM CDT...

At 322 PM CDT, Doppler radar was tracking a strong thunderstorm near
Port Barre, or near Leonville, moving northwest at 5 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...
Opelousas, Leonville, Arnaudville, Port Barre and Washington.

This includes Interstate 49 between mile markers 17 and 26.

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.

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 3036 9173 3040 9201 3060 9215 3072 9180
TIME...MOT...LOC 2022Z 156DEG 6KT 3051 9190

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

Warthen

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