FXUS64 KHGX 061650
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1150 AM CDT Thu Aug 6 2026

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

.KEY MESSAGES...

- Scattered seabreeze showers and thunderstorms expected on a
  daily basis into early next week.

- Seasonably hot with highs in the 90s and heat index values
  101-108F each day.

&&

.DISCUSSION...
Issued at 1150 AM CDT Thu Aug 6 2026

Light SSW winds, warm temps, and dewpoints in the upper 70s to
around 80 will probably produce some heat index readings around,
or slightly above, 108F this afternoon. Due to the short nature,
the plan for now is to forgo a head advsy...but typical summertime
heat precautions should still be considered. 

Otherwise, we're seeing some higher PW air, compared to the
previous several days, track into the region from the east &
southeast. Once we get some more daytime heating and a
seabreeze/baybreeze to generate we should see some sct shra/tstms
develop across parts of the region.

Pretty much a rinse/repeat scenario through the weekend into early
next week with the synoptic pattern remaining about the same
(ridging over the Four Corners into wcntl Tx, more ridging in the
Atlantic, and troffiness/weakness in between). Fluctuations on PW
values should generally drive POPs and overall coverage each day.
Deterministic guidance isn't in the best of agreement in terms of
the finest details in those regards...but the southern 2/3 of the
CWA will probably see the overall better chances. POPs may need to
be nudged upwards some Sun-Mon if ECMWF ends up being the 
deterministic model of choice. 

With more cloudiness and a prevailing SE llvl flow, we'll 
probably see highs a few degrees lower than previous days. But 
they should trend back up toward the middle part of next week as 
Atlantic ridging begins expanding westward across the NE/Ncntl 
Gulf. 47

&&

.AVIATION...
(18Z TAF Issuance)
Issued at 1150 AM CDT Thu Aug 6 2026

Scattered showers and thunderstorms are expected to develop near the 
Houston terminals 19-23Z. Have placed a PROB30 in the forecast. 
North of KCXO there could be isolated convection but confidence is 
too low to mention in the TAFs. Expect a repeat performance on 
Friday afternoon. Otherwise generally VFR conditions are expected 
area wide. Southeast winds may gust around 15 knots at times 20-00Z. 
MVFR ceilings could impact KCLL terminal 13-16Z Friday. 35

&&

.MARINE...
Issued at 1150 AM CDT Thu Aug 6 2026

Typical summertime conditions expected through the weekend into
early next week. South and southeast winds, generally in the 10-15
knot range and 2-4 foot seas are expected. Look for some scattered
shower and thunderstorm development each day...with the better
chances in the early morning through early afternoon hours.  47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)	  76  95  75  95 /  20  20   0  20 
Houston (IAH)			  79  95  78  94 /  20  30   0  30 
Galveston (GLS)			  83  90  82  90 /  20  20  10  20 

&&

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

&&

$$

DISCUSSION...47
AVIATION...35
MARINE...47