Area Forecast Discussion
Issued by NWS Corpus Christi, TX

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607
FXUS64 KCRP 181118
AFDCRP

Area Forecast Discussion
National Weather Service Corpus Christi TX
618 AM CDT Fri Sep 18 2026

...New AVIATION...

.KEY MESSAGES...
Issued at 610 AM CDT Fri Sep 18 2026

- Rain chances today could limit heat-related impacts

- Medium to high rain chances remain in the forecast through
  early this evening

- Minor coastal flooding remains a concern

&&

.DISCUSSION...
Issued at 121 AM CDT Fri Sep 18 2026

Rain chances will remain in the 30-60% range tomorrow before
decreasing this weekend to under 15% before rebounding back to the
20-30% range early to mid next week each afternoon with the
seabreeze. While warm temperatures will remain warm, heat index
values are expected to drop with the increased cloud cover lowering
out heat risk for the next couple of days.

Will continue to monitor beach conditions over the next few days. A
long easterly fetch will develop across the northwestern Gulf over
the next few days. This could result in possible coastal flooding,
especially during times of high tides and an increased risk of rip
currents.

&&

.AVIATION...
(12Z TAFS)
Issued at 610 AM CDT Fri Sep 18 2026

Some MVFR CIGs and VSBYs have shown up overnight across a couple sites
(CRP and COT). A low to medium (35-60%) chance for showers and
thunderstorms will exist across South Texas. Winds will be
easterly around 10-15 knots. Chances for activity dwindle this
evening and so will the winds. VFR will prevail through the TAF
cycle with some periods of lower CIGs possible near showers and
thunderstorms.

&&

.MARINE...
Issued at 121 AM CDT Fri Sep 18 2026

A gentle to moderate (BF3-4) breeze is expected, with occasional
periods of fresh (BF 5) breezes through early next week. Low to
medium (20-45%) rain chances tonight will increase to a medium to
high (30-70%) chance by tomorrow, before decreasing to a low chance
once again on Friday.

&&

.FIRE WEATHER...
Issued at 121 AM CDT Fri Sep 18 2026

ERC values will remain in the 50-69th percentile for much of the
region and remain at those levels through the end of the week. While
ERC values will be decreasing, relative humidity values will be
improving above 40% across all of South Texas Thursday into the
weekend. Therefore, elevated fire weather conditions are not
expected at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi    93  77  94  77 /  50  10  10   0
Victoria          98  72  98  73 /  20   0  10   0
Laredo            99  75 101  76 /  30  10   0   0
Alice             95  73  98  73 /  50   0  10   0
Rockport          93  79  92  79 /  40  20  20  10
Cotulla           97  75  99  75 /  30  10   0   0
Kingsville        95  75  96  75 /  60  10  10   0
Navy Corpus       90  81  90  81 /  40  10  10  10

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&

$$


DISCUSSION...JCP/84
AVIATION...NP/92