Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 171812
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1212 PM CST Sun Dec 17 2017

.AVIATION...
VLIFR/LIFR conditions hold across many of the terminals this
morning. These conditions should improve slightly in the early
afternoon hours with the help of some daytime mixing, allowing
some sites to have cigs and visibilities rise to IFR criteria.
The occasional break in this stratus deck is allowing for short
periods of VFR conditions, before stratus once again fills back in
lowering cigs.

Conditions should only deteriorate beginning in the early evening
hours as fg fills back in. In the early morning, visibilities
could fall to a mile at times. Have capped most sites at one mile
visibilities for now, but these may need to be lowered as fg
thickens. Isolated to scattered showers will also be possible
beginning in the early morning hours mainly along the coast, and
possibly impacting metro TAF sites.

Hathaway

&&

.PREV DISCUSSION... /ISSUED 926 AM CST Sun Dec 17 2017/

UPDATE...
Quick morning update to extend the Dense Fog Advisory through 11
AM CST and add Montgomery, Polk, and San Jacinto based on latest
observations. Low clouds between 500-1500 feet AGL will result in
slower heating in these areas this morning and expect fog to
persist through the late morning hours as a result. Localized
areas of dense fog will be possible outside of the Dense Fog
Advisory, but TranStar webcams show most roadways clear of fog
around the Houston metro and have not included Harris County at
this time. Also updated temperature trends as a result of
clouds/fog and lowered high temperatures for the day a degree or
two. Remainder of forecast is on track with highs in the low to
mid 60s today.

Huffman

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      52  66  60  70  54 /  10  60  70  70  30
Houston (IAH)              56  68  64  75  59 /  30  60  60  60  60
Galveston (GLS)            60  69  65  73  61 /  40  60  40  30  50

&&

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

$$

Discussion...14
Aviation/Marine...08



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