Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 221451
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
951 AM CDT Sun Apr 22 2018

.UPDATE...
Previous forecast appears to be on track. Minor tweaks were made
to account for current obs.

11

&&

.PREV DISCUSSION... /ISSUED 623 AM CDT Sun Apr 22 2018/

AVIATION [12Z TAF Issuance]...

Cold front has passed through all terminals at this point, with a
complicated ceiling situation in the wake of the front.
Immediately behind the front are LIFR/IFR ceilings. There had been
a brief area of clearing that impacted CLL, but an 015 deck has
caught up and eliminated this area of clearing, and do not
introduce it at any other sites. Given appearance of this 015 deck
on satellite, have grown more pessimistic on how quickly clouds
will lift, but after a bit more delay, bring sites to high clouds
as more post-frontal air streams into the area. This trend has
been unstable and messy upstream, and may need to be nowcast into
the afternoon.

Of more confidence will be gusty northwest to north winds today.
Sustained winds in the teens with gusts to around or just over 20
knots are expected. Winds should diminish in the evening as high
pressure begins to bleed in from the northwest.

Luchs

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      69  51  78  55  83 /   0   0   0   0   0
Houston (IAH)              72  55  79  57  83 /   0   0   0   0   0
Galveston (GLS)            71  61  77  64  78 /  10   0   0   0   0

&&

.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 through this evening 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


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