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National Weather Service Forecast Discussion

022
FXUS64 KHGX 221836
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
136 PM CDT Mon Jun 22 2026

...New DISCUSSION, MARINE...

.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 135 PM CDT Mon Jun 22 2026

Upper ridging will continue to build into the region today, with
high pressure at the surface. Despite some cloud cover, the height
rises have allowed temps to warm into the lower 90s across most
of the area. Fortunately, with the drier air working its way in
with the ridge, dewpoints have fallen into the mid 70s. This has
tempered the heat indices from rising above 107, however some heat
concerns will persist.

Dry conditions will prevail through the remainder of the period
as the ridge settles in across the area. Several disturbances to
our north will spark convection over the Mid West and Central
Plains, but the building ridge will provide enough subsidence over
the area to keep a dry forecast. The only concern remains the
potential for heat related issues, as daytime highs climb into
the mid 90s each afternoon and overnight lows fall into the mid
to upper 70s. The lower dewpoints will also persist, so we will
likely remain below heat advisory criteria. Those most vulnerable
may still be susceptible to the heat, so heat safety actions
should be in place each day.

&&

.AVIATION...
(12Z TAF Issuance)
Issued at 605 AM CDT Mon Jun 22 2026

MVFR CIGS will scatter and lift out later this morning. VFR
conditions prevail through the daytime with breezy S/SE winds
with gusts around 20 knots, up to around 25 knots along the
coastline. Winds and gusts diminish this evening with another
round of MVFR CIGS filling in overnight. Cannot rule out a short
period of IFR CIGS early Tuesday morning, with chances for IFR
conditions more favorable N/NW of the Houston Metro area. CIGs
scatter out again after sunrise.

03

&&

.MARINE...
Issued at 135 PM CDT Mon Jun 22 2026

Light to moderate onshore flow will persist through the week. Seas
will generally remain between 2 and 4 feet.

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)  93  78  94  76 /   0   0   0   0
Houston (IAH)  93  79  94  77 /   0   0   0   0
Galveston (GLS)  89  83  89  82 /   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...03
MARINE...JTC

NWS HGX Office Area Forecast Discussion