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National Weather Service Forecast Discussion

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919
FXUS64 KHGX 292359
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
659 PM CDT Fri May 29 2026

...New AVIATION...

.KEY MESSAGES...

- Patches/areas of Fog expected early in the morning.

- Drier but warmer conditions anticipated through Sunday. Make
  sure to be prepared for the warmer temperatures if you plan to
  work or spend time outdoors.

- Daily chance for showers and thunderstorms expected next week.


&&

.DISCUSSION...
Issued at 1100 AM CDT Fri May 29 2026

Benign conditions are expected to persist into the end of the
weekend as the mid to upper level ridge over East TX and LA
remains as the dominant feature. Southerly flow will continue to
feed in warm moisture air from the Gulf, thus, warm conditions are
expected with highs in the upper 80s to lower 90s for much of
Southeast TX today into early next week. Today`s heat indices are
expected to peak in the upper 90s with isolated spots possibly
reaching the lower 100s. But during the weekend, we could see more
areas reaching the lower 100s, in particular on Sunday and Monday
as PWs increase to 1.6-2.0 inches. Make sure to be prepared for
the heat if you plan to work or spend time outdoors through early
next week. Drink plenty of water, take several breaks from the
heat/sun, and wear appropriate clothing. The night`s will also be
rather warm with lows going from the lower 70s tonight, rising
into the mid to upper 70s for much of Southeast TX by Sunday
night. The lows along the coasts are expected to be in the upper
70s to lower 80s.

We could have slight chances of showers over the Gulf waters Sunday
night and early Monday, which can move into our coastal locations
from time to time. Rain chances would then increase Monday
afternoon as moisture further increases over the area and the
ridge weakens while weak disturbances embedded in the western
periphery of the ridge move aloft. Daily chances for showers and
thunderstorms will continue for much of the work week as upper
level disturbances continue move through the region and southerly
flow supplies warm moisture air into Southeast TX. The best
opportunities for development of thunderstorms look to be during
the afternoon and evening hours when diurnal heating and
instability are at its best. The forecast still shows at our high
temperatures falling back into the upper 80s by mid-week.

Cotto

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 644 PM CDT Fri May 29 2026

VFR conditions will generally prevail through most of the TAF
period. However, a brief window of SCT to occasional BKN MVFR to
IFR cigs are expected with some visibility restrictions from fog
later tonight. The best window for these restrictions will be in
the 11Z- 13Z time frame. S to SW winds will slightly increase to
around 10 knots Saturday afternoon, before becoming light and
variable by Saturday evening.

JM

&&

.MARINE...
Issued at 1100 AM CDT Fri May 29 2026

Light onshore winds and low seas will continue through the
next several days. Tranquil weather conditions will persist
through the weekend. Chance for showers and thunderstorms increase
Sunday night and we will likely see daily rain chances through
much of next week. Strong wind gusts and locally higher seas can
occur in and around strong thunderstorms.

Cotto

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  72  91  74  91 /   0   0   0  10
Houston (IAH)  74  92  76  91 /   0   0   0  10
Galveston (GLS)  79  87  80  87 /   0   0   0   0

&&

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

$$

DISCUSSION...Cotto
AVIATION...JM
MARINE...Cotto

NWS HGX Office Area Forecast Discussion