689
FXUS64 KLCH 052336
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
636 PM CDT Sat Jul 5 2025

...New AVIATION...

.KEY MESSAGES...

- Regardless of heat headline issuance, please continue to
  practice heat safety precautions.

- Weakness aloft will support higher rain chances through early
  to mid this work week.

&&

.SHORT TERM...
(Tonight through Monday night)
Issued at 1258 PM CDT Sat Jul 5 2025

A relatively typical summertime pattern is unfolding across the
region this afternoon, with mostly quiet conditions and
temperatures climbing into the upper 80s to lower 90s. Compared to
yesterday, reduced cloud cover is allowing for increased surface
heating, with highs expected to peak in the mid 90s.

A weakening ridge continues to influence the area, though it is
gradually eroding as a weak trough approaches and an area of low
pressure, associated with Tropical Storm Chantal, lingers off the
Carolina coast. While subsidence from the ridge is still
sufficient to suppress widespread convection, isolated to low end
scattered showers and thunderstorms will be possible later this
afternoon, primarily diurnally driven and tapering during the
evening hours.

A transition in the upper level pattern is anticipated by Sunday
as the aforementioned tropical low detaches and migrates westward,
positioning itself over the Gulf. This will lead to increased
showers and thunderstorms, especially from late Sunday through
early next week.

Temperatures during the short term will remain near to slightly
above climatological normals (within ~3F), though high humidity
will result in heat indices ranging from 100 to 105F each
afternoon. While this does not meet local heat advisory criteria,
prolonged exposure may still pose health risksparticularly for
vulnerable populations. Hydration, sun protection, and frequent
cooling breaks are strongly encouraged for those with prolonged
outdoor activity.

&&

.LONG TERM...
(Tuesday through next Friday)
Issued at 1258 PM CDT Sat Jul 5 2025

The long term period begins with an upper level trough lingering
across the region, promoting daily chances for scattered showers
and thunderstorms into midweek. By late week, guidance suggests a
gradual amplification of heights as ridging attempts to build in.
This transition should begin to suppress convective activity to
some degree, especially by Thursday and Friday.

As convective coverage decreases, daytime temperatures are
expected to climb slightly. Heat index values will likewise trend
upward, potentially reaching numerical thresholds for heat
headlines late in the period. Regardless of official criteria
being met, heat risks will remain a concern, and heat safety
measures should continue to be practiced.

&&

.AVIATION...
(00Z TAFS)
Issued at 637 PM CDT Sat Jul 5 2025

Subsidence has resulted in generally VFR conditions with widely
scattered showers and isolated thunderstorms along coastal areas.
Convection will tamp down after sundown. Some areas of patchy fog
will be possible through the early morning hours.

Upper low meanders overhead into Sunday which should result in
a more-unsettled day as far as convection is concerned.

11

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  74  96  72  94 /   0  30  10  50
LCH  76  93  76  91 /   0  30  10  60
LFT  75  93  74  91 /  10  50  20  70
BPT  74  93  74  91 /   0  20  10  50

&&

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

$$

SHORT TERM...87
LONG TERM....87
AVIATION...11