FXUS64 KHGX 232338
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
638 PM 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 125 PM CDT Tue Jun 23 2026

Latest water vapor imagery shows upper ridging over much of the
western CONUS, with a trough along the east coast. At the surface,
high pressure continues to build along the northern Gulf, keeping
southerly surface flow across the region. The upper ridge will
maintain its hold on the weather pattern for the next few days.
This will keep a mostly dry forecast, with drier air limiting any
chance of convection. Afternoon highs will warm into the lower to
mid 90s each afternoon, under mostly clear skies. Fortunately,
with lower dewpoints and moisture, heat indices will remain below
heat advisory criteria. 

The axis of the ridge will slowly move eastward this weekend, with
the area becoming situated on the western periphery of the ridge
by early next week. Flow through the vertical column will become
southerly, filtering moisture back into the region. This will
bring a return of daily afternoon thunderstorms, with coverage
dependent on any mesoscale features that can initiated the
convection. Given the lack of forcing, will keep little to no PoPs
in the forecast through the period. Temperatures will generally
remain the same each day, with highs in the lower to mid 90s and
lows in the lower to mid 70s. 

&&

.AVIATION...
(00Z TAF Issuance)
Issued at 627 PM CDT Tue Jun 23 2026

VFR conditions will generally prevail across the region through
the period. MVFR ceilings may develop over locations generally to
the west and northwest of the Houston metro area overnight into
Wednesday morning. MVFR ceilings have been included in the CLL, 
UTS, and CXO TAFs between 09-15Z. Confidence remained too low to 
include MVFR ceilings in the other terminal forecasts, including 
IAH and HOU. Light southerly winds will otherwise prevail through
the forecast period.

&&

.MARINE...
Issued at 125 PM CDT Tue Jun 23 2026

Light to moderate onshore flow will persist through the week. Seas
will stay between 2 and 5 feet. 

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)	  76  94  73  94 /   0   0   0   0 
Houston (IAH)			  77  94  75  93 /   0   0   0   0 
Galveston (GLS)			  82  89  81  88 /   0   0   0   0 

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...High Rip Current Risk until 7 PM CDT this evening for TXZ436>439.

GM...None.
&&

$$

DISCUSSION...JTC
AVIATION...CLL
MARINE...JTC