Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 222025
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
325 PM CDT Sun Apr 22 2018

.DISCUSSION...
Beautiful weather is expected through the next couple of days in
the wake of last night`s cold front. Overcast skies have finally
pushed off to the east this afternoon, leaving behind sunny and
dry conditions across the area. High temperatures will gradually
increase from near 70 today to the low to mid 80s by Tuesday under
mostly sunny skies. Clouds and moisture will finally return on
Wednesday as winds become onshore for a period before the arrival
of the next cold front Wednesday afternoon. Some showers and a few
thunderstorms may be possible with this front Wednesday into
Wednesday night. This cold front doesn`t appear to be very strong-
only knocking high temperatures back down into the mid to upper
70s.

Models really begin to diverge heading into the second half of
the week. The GFS remains dry with high pressure settling into the
area in the wake of Wednesday`s cold front, while the ECMWF has
been trying to bring another shortwave through with some
precipitation on Friday. While this latest ECMWF run is a bit
drier than previous runs, the current forecast will maintain a 20
PoP on Friday to account for the uncertainty.

11

&&

.MARINE...
A moderate offshore flow will weaken this evening but will carry the SCEC
for the offshore waters through 03z to cover slightly higher wind speeds
this evening. A light offshore flow will prevail Mon-Tues as high pressure
settles over the southern plains. The sfc high will move east and a light
onshore flow will develop Tues night into Wednesday. Another weak cold
front will cross the coastal waters Wednesday night with a weak offshore flow
redeveloping Weds night and continue into Thursday. Models continue to
lack much run to run continuity and consistency toward the end of the
week. A weak wind regime looks likely toward the end of the week and
wind direction at this time looks like a pick `em. 43

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      52  78  56  83  59 /   0   0   0   0  10
Houston (IAH)              55  79  59  84  62 /   0   0   0   0  10
Galveston (GLS)            62  77  65  77  67 /   0   0   0   0  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION until 3 PM CDT this
     afternoon 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.

     SMALL CRAFT SHOULD EXERCISE CAUTION until midnight CDT tonight
     for the following zones: 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...11
Marine...43



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