FXUS64 KHGX 231105
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
605 AM CDT Tue Jun 23 2026

...New AVIATION...

.KEY MESSAGES...

- Hot conditions will continue this week, with potential for heat
  stress issues as heat indices approach 107F (41-42C) each day. 

- A high risk of strong rip currents will continue early this 
  week.

&&

.DISCUSSION...
Issued at 1211 AM CDT Tue Jun 23 2026

Hot weather and low rain chances will persist as strengthening 
mid level ridging continues to hold sway from south TX across the 
northern Gulf. This pattern will continue to deflect a series 
upper disturbances and associated convection north and northeast 
of our area over the next several days. High temps will remain in 
the lower to middle 90s (32-36 C) with heat indices topping out 
in 103-107 F (39-42 C) range. Over the next few days, it's 
possible a few areas to briefly reach heat advisory criteria
during the afternoon, but with somewhat better daytime mixing, 
dewpoints should drop enough to keep heat indices in check. Still,
caution is advised especially for those most vulnerable to heat 
stress impacts. And for beachgoers, strong rip currents will 
remain a concern over the next few days.

There are some hints the mid/upper ridge will break down enough 
toward the end of the week for isolated diurnal convection to return 
to southeast TX by this weekend or early next week. However, 
probabilities are not yet high enough to warrant mention in the 
official forecast. 

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 518 AM CDT Tue Jun 23 2026

MVFR CIGS and patchy fog should clear out later this morning with
VFR conditions prevailing throughout the daytime. MVFR CIGS may 
develop in spots overnight/early Wednesday morning. Areas
north/west of the Houston Metro are generally more at risk of
seeing MVFR conditions develop during this early morning period. 
Otherwise most terminals may see lower decks around 1800-2800 ft
during the morning, though staying predominantly VFR.

03

&&

.MARINE...
Issued at 1211 AM CDT Tue Jun 23 2026

Steady light to moderate southerly onshore flow will persist through 
most of this week, trending up a bit by this weekend. Seas will 
generally remain between 2 and 4 feet.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)	  94  76  94  74 /   0   0   0   0 
Houston (IAH)			  95  77  95  75 /   0   0   0   0 
Galveston (GLS)			  89  82  89  81 /   0   0   0   0 

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...High Rip Current Risk through this evening for TXZ436>439.

GM...None.
&&

$$

DISCUSSION...DL
AVIATION...03
MARINE...DL