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Area forecast discussion
National Weather Service Houston/Galveston Texas
355 am CDT Sat Oct 20 2018

rains have been making steady progress to the east early this
morning with the majority of activity now east of the I-45
corridor. Some additional echoes are found along the coast
in and around the Sargent-Freeport areas and are building into
Matagorda Bay. Expect to see gradually decreasing rain chances
from north to south today (especially this afternoon) as
surface high pressure builds into the area from the north.
Cooler and drier weather will prevail tonight through Sunday
night, but look for some high clouds to keep skies from
becoming clear. As the high moves off to the east at the start
of the week, look for periods of rain (maybe some thunderstorms
too) that could possibly last on into Thursday or Friday as a
developing southwest flow aloft brings a series of disturbances
across the area. For now, most of the heaviest rainfall looks
to set up close to the coast and offshore as low pressure forms
along a frontal boundary situated over the waters, but only a
slight westward shift could bring some of the higher/excessive
amounts inland. The area finally looks to dry out around the
end of the week or the start of next weekend as a northwest
flow aloft finally sets up. 42

light to moderate winds and waves will increase later today as a
cold front approaches southeast Texas. Behind the front tonight,
expect winds and waves to rapidly increase, likely warranting small
craft advisories tonight through tomorrow. A coastal low developing
offshore will cause the pressure gradient to once again tighten.
Between the front and the coastal low, seas will not have much of a
chance to diminish. Rough conditions should continue offshore
through early next week due to strong winds. Tides are expected to
remain below advisory criteria, but the coastal flood potential
remains dependent on the track of the coastal low. 22


College Station added another 0.41 inches of rain yesterday to bring
their monthly total up to 8.96 inches. This currently ranks as their
9th wettest October on record. To get into the top 5, another 1.82
inches of rain is needed before the month comes to an end. Hope this
does not happen, but just under 10 inches is needed to become the
wettest October on record (18.77 inches set in 1994). 42

Preliminary point temps/pops...
College Station (cll) 71 54 68 51 61 / 30 0 0 10 50
Houston (iah) 74 59 70 52 64 / 30 10 0 10 50
Galveston (gls) 76 65 71 62 68 / 50 10 10 10 50


Hgx watches/warnings/advisories...

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