Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 232101
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
401 PM CDT Sun Jul 23 2017

.DISCUSSION...
Coverage so far today has been generally north of I-10 and along/
east of I-45. Still not ruling out some isolated development over
the far NW counties through the early evening hours, but the bulk
of the storms will likely remain over the central zones of SE TX.

With the upper low near the TX/LA border continuing to weaken to-
night, the ridge aloft out west will begin to build into the area
tomorrow. Slightly less coverage is expected tomorrow and Tuesday
as a result...with a corresponding bump up of daytime high temps.
Would not be too surprised to see a few 100s at some of our sites
(ie CLL) with heat indicies 105-108 for most locations these next
couple of days.

Slightly deeper moisture progged to move in from the Gulf on Weds
and scattered POPS (closer to the coast) will be possible. A ret-
urn of mostly daytime seabreeze induced activity expected for the
rest of the week. As for the extended forecast...models appear to
be hinting that we might/possibly/could see the passage of a very
weak front. Will likely just leave lowish POPS in for the weekend
and hope later runs add a bit more clarity. 41

&&

.MARINE...
Showers and storms have been largely suppressed over our waters
today as the bulk of today`s activity is either over land, or tucked
closer to the upper disturbance off the SW Louisiana coast. Water
vapor imagery shows that disturbance drifting westward, so parts of
the waters off the upper Texas coast can likely look to see activity
increase this afternoon and evening.

Winds have not really come down significantly today, and so continue
the SCEC through the night, as winds should stay up overnight. Of
course, winds and waves can be expected to be even higher near any
thunderstorms. Winds should gradually diminish and veer slightly as
surface high pressure moves over the area. Along with that, waves
should also slowly diminish from 2-4 feet to 1-3 feet. Relatively
persistent onshore flow should keep tides running several inches
above astronomical levels through the week, but should be well shy
of tide levels associated with causing flooding issues.

Luchs

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      77  98  76  97  78 /  30  20  10  10  10
Houston (IAH)              78  95  77  93  78 /  50  20  10  10  10
Galveston (GLS)            83  90  83  90  82 /  40  10  10  10  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...High Rip Current Risk until midnight CDT tonight for the
     following zones: Brazoria...Chambers...Galveston.

GM...SMALL CRAFT SHOULD EXERCISE CAUTION through late tonight for the
     following zones: Coastal waters from Freeport to the
     Matagorda Ship Channel out 20 NM...Coastal waters from High
     Island to Freeport out 20 NM...Matagorda Bay...Waters from
     Freeport to the Matagorda Ship Channel from 20 to 60 NM...
     Waters from High Island to Freeport from 20 to 60 NM.

&&

$$

Discussion...99


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