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National Weather Service Forecast Discussion

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FXUS64 KHGX 311808
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
108 PM CDT Sun May 31 2026

...New DISCUSSION, AVIATION, MARINE...

.KEY MESSAGES...

- Benign conditions will prevail for the rest of today and
  tonight.

- Warm conditions expected through mid-week. Make sure to be
  prepared for the warmer temperatures if you plan to work or
  spend time outdoors.

- Slight chance for showers and thunderstorms expected Monday
  afternoon. Chances increase Tuesday as well as near the end of
  the work week.

&&

.DISCUSSION...
Issued at 1248 PM CDT Sun May 31 2026

Benign conditions will persist for the rest of today and tonight.
Expect partly cloudy skies along with southeast winds at 5-10 mph
this afternoon and relaxing to 5 mph or less tonight. The highs
this afternoon will peak in the lower 90s for much of the inland
portions of Southeast TX and the upper 80s along the coasts. Heat
indices will range between the upper 90s to lower 100s.
Unfortunately, these heat indices will remain in the upper 90s to
lower 100s through at least Tuesday. Thus, make sure to practice
heat safety and drink plenty of water, take several breaks from
the heat/sun, and wear appropriate clothing if you plan to work or
spend time outdoors. The overnight lows for the next few nights
will range in the lower to mid 70s inland and the upper 70s to
lower 80s along the coasts.

There is a chance for isolated to scattered showers and
thunderstorms within and near the seabreeze on Monday afternoon,
mainly for areas near and south of I-10. Rain chances decrease
Monday night as diurnal heating decreases. Chance for showers and
thunderstorms are expected to increase on Tuesday afternoon and
evening, as diurnal heating and instability increases. We may also
have a few vort maxes moves through the area as well as a boundary
that could enhance shower and thunderstorm activity. Thus, there
is a good chance we see rain activity occur over areas outside of
the seabreeze boundary. On Wednesday, we will once again have
afternoon showers and thunderstorms develop as diurnal heating
peaks, instability increases, and lingering weak vort maxes push
through.

For the end of the work week, rain chances look to continue as an
upper level low moves east-northeast from Baja California into
Northern Mexico and weak embedded disturbances ahead of it move
across Texas. We continue to see the trend of somewhat "cooler"
temperatures Thursday and Friday, with highs generally in the
upper 80s for both days. Stay tuned for more!

Cotto

&&

.AVIATION...
(18Z TAF Issuance)
Issued at 1248 PM CDT Sun May 31 2026

VFR conditions and S/SE winds 5-11kt will prevail today and tonight.
Later tonight, increasing confidence that we could see some patchy
late night fog and MVFR ceiling development over southeast TX prior
to improving conditions after daybreak tomorrow morning.

Young

&&

.MARINE...
Issued at 1248 PM CDT Sun May 31 2026

Light onshore winds and low seas are expected through Tuesday.
Winds become east-southeast late Tuesday as a weak boundary moves
through. Winds also increase late Wednesday into Thursday and may
be moderate at times through the end of the work week, which will
lead to seas rising to around 3 feet over the nearshore waters
and around 5-6 feet over the offshore waters.

The risk of strong rip current will increase starting on
Wednesday over the Gulf facing beaches. Seabreeze showers and
storms are expected Monday, followed by daily chance of showers
and thunderstorms for the rest of the week.

Cotto

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  91  74  92  75 /   0   0  10  10
Houston (IAH)  92  76  92  77 /   0   0  20  10
Galveston (GLS)  87  80  88  80 /   0   0  10  10

&&

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

$$

DISCUSSION...Cotto
AVIATION...Young
MARINE...Cotto

NWS HGX Office Area Forecast Discussion