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National Weather Service Forecast Discussion

874
FXUS64 KHGX 031757
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1257 PM CDT Mon Aug 3 2026

...New DISCUSSION, MARINE...

.KEY MESSAGES...

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

- An isolated late day shower can`t be ruled out along the
  seabreeze, but most locations will remain dry.

- Slightly better rain chances expected Thursday into the weekend
  with some deeper moisture moving in from the Gulf.

&&

.DISCUSSION...
Issued at 1257 AM CDT Mon Aug 3 2026

Pattern remains status quo for a good part of the week with
mid/upper ridging situated across the Desert Southwest into Texas,
troffiness in the SE states, and ridging in the Atlantic. Locally,
drier air & subsidence should be fairly dominate and keep things
mostly dry through the midweek period (though an isolated late day
shower can`t totally be ruled out with the seabreeze).

Thursday and into the weekend, PW`s trend upward and closer to the
2" range. And, depending on your model of choice, maybe a few
weak inverted H5 waves tracking wwd across the nrn Gulf Coast toward
TX. Either should allow for slightly better diurnally driven rain
chances and coverage (perhaps 30-40%). 47

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 507 AM CDT Mon Aug 3 2026

Light and variable winds will persist through most of the morning
before becoming southerly to southeasterly in the afternoon hours.
Terminals closer to the coast will start out with light south-
southwesterly winds before transitioning to southeasterly winds
around 10 kt this afternoon. Cannot rule out intermittent periods
of patchy fog over the next few hours this morning in LBX/SGR.
Isolated SH/TS possible this afternoon around the Houston metro
terminals between 20Z-01Z, but the potential is too low to include
it in any of the TAFs. Brief periods of patchy fog will be
possible again early Tuesday morning.

Batiste

&&

.MARINE...
Issued at 1257 AM CDT Mon Aug 3 2026

Light to moderate onshore winds and low seas are expected through
the forecast period. Rain chances will be low through most of the
work week and slightly increase going into the weekend.  47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  76  99  76  98 /   0   0   0  10
Houston (IAH)  78  99  78  97 /  20  10   0  20
Galveston (GLS)  83  92  83  91 /  10   0   0  10

&&

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

&&

$$

DISCUSSION...47
AVIATION...Batiste
MARINE...47

NWS HGX Office Area Forecast Discussion