Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 211726
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1226 PM CDT Fri Jul 21 2017

.AVIATION...
Afternoon showers and thunderstorms will be possible into the early
evening tonight for TAF sites including CXO and southward. PWs for
these sites are 1.8+ inches. Forecast soundings indicate gusty winds
could be possible with stronger storms this evening. Less confident
that CLL and UTS will see convection late this afternoon, as PWs in
the north and northwestern section of the CWA are slightly lower
around 1.6-1.7 inches, though depending on how the outflow
boundaries set up could see a stray shower or two. Precip should
end around 03Z, and return in the early tomorrow morning for the
coastal TAF sites GLS and LBX around 09Z. Showers and
thunderstorms should spread inland through late morning into
afternoon as an upper level low pushes into the region.

Hathaway

&&

.PREV DISCUSSION... /ISSUED 1048 AM CDT Fri Jul 21 2017/

DISCUSSION...
A weak low pressure trough was along the coast at the surface at
mid morning. Isolated to scattered showers were developing to the
south of the boundary. Outflows from these storms were pushing
toward the coast and helping showers to form over the coastline.
Expect these to continue moving inland as the outflows combine
with the seabreeze.

40

PREV DISCUSSION... /ISSUED 525 AM CDT Fri Jul 21 2017/

MARINE... Weak disturbances...along with the weekend visit of a
weak low currently rotating west out of Florida...will introduce
periodic showers and thunderstorms. Early day light
southwesterlies will back more southerly through the day. A
tighter onshore gradient early next week will strengthen overnight
winds to near Caution levels. Wave heights will pick up from
their current 1 to 2 foot heights to nearshore 2 feet to 4 feet
offshore average heights by Monday. 31

CLIMATE...
Houston/Hobby Airport set a new record high minimum temperature yesterday
when the low only got down to 80 degrees (old record was 79 degrees
set in 1980). Earlier this month, Hobby tied two record high minimum
temperatures (80 degrees on the 13th and 79 degrees on the 14th). 42

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      76  95  77  96  75 /  10  30  20  30  20
Houston (IAH)              78  92  79  93  77 /  20  50  30  50  20
Galveston (GLS)            83  88  83  89  83 /  20  50  30  50  20

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

$$

Discussion...40
Aviation...08



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