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National Weather Service Forecast Discussion

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589
FXUS64 KHGX 291121
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
621 AM CDT Fri May 29 2026

...New AVIATION...

.KEY MESSAGES...

- Patches/areas of Fog expected early in the morning, possibly
  dense in some spots.

- 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 1118 PM CDT Thu May 28 2026

Patchy fog is expected to develop over portions of SE Texas early
this morning with some dense pockets possible. Onshore winds have
also returned, and thus surface moisture should increase across
the region. As a result, early morning lows for today will be a
tad warmer, in the upper 60s/lower 70s. Amplified ridging is still
forecasted to be in place over the Plains/Mississippi River
Valley today. While SE Texas will be on the southwestern
peripheral of the ridge, it will still feel its influence. Rain
chances remain sparse with CAMs keeping convective activity
largely east of our CWA this afternoon. Highs will be warm,
reaching the upper 80s/lower 90s. Heat indices will also reach the
90s, possibly triple digits in a few spots. With summer heat
starting to develop across the area, make sure you`re drinking
plenty of water and cooling off indoors.

Similar weather is anticipated for Saturday as mid/upper level
ridging remains over much of the Plains/Mississippi River Valley.
Continued onshore flow and moisture advection should result in early
morning lows in the 70s across the region. Some weak vorticity
impulses could undercut the ridge to bring some weak showers/storms
in the afternoon, though rain chances are still anticipated to be
low for Saturday. Highs should reach the 80s to lower 90s with heat
indices in the 90s to triple digits.

Sunday is still poised to be another warm day with sparse rain
chances. Heading into next week, several impulses may undercut the
mid/upper level ridge. This, along with decreasing subsidence should
bring daily chances for showers and storms throughout next week.
Highs are forecasted to remain in the 80s/lower 90s with lows in the
upper 60s/lower 70s. Heat indices remain generally around the 90s to
triple digits, easing down slightly during the later half of the
week.

03

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 615 AM CDT Fri May 29 2026

All sites at VFR currently. Monitoring an area of low clouds that
hsa moved in from the west this morning. While terminals are not
currently being impacted, could see KCLL/KSGR/KUTS/KCXO briefly
drop below VFR this morning. For the rest of the day, expect VFR
conditions with light winds out of the SSW.

Bailey

&&

.MARINE...
Issued at 1118 PM CDT Thu May 28 2026

Light to moderate onshore winds and seas 3 feet or less are
anticipated through the weekend. Daily chances for showers and
thunderstorms are expected throughout next week.

03

&&

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

&&

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

$$

DISCUSSION...03
AVIATION...Bailey
MARINE...03

NWS HGX Office Area Forecast Discussion