Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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FXUS64 KHGX 260202
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
902 PM CDT Sat Mar 25 2017

.UPDATE...
A much quieter evening than 24 hours ago...clear inland skies to
partly cloudy along the coastline. This morning`s front stalled
along the coast with drier air slowly filtering into the region
...lower 50 dew points into the city with coastal lower 70 Tds.
As southwesterly coastal breezes back more southerly...per the
washing out of the remnants of today`s frontal boundary...southern
county middle to upper 60 dew points will creep further inland.
This will create lower dew point depressions as ambient coastal
/central interior county evening temperatures in the upper 60s to
lower 70s fall into the low to mid 60s past midnight. This will
produce an environment conducive to fog development...possibly
more dense over those areas that received higher Fri-Sat rainfall
and still have moist grasses or soils. Slow post-sunrise improvement
to a stratus deck tomorrow morning...scattering out to partly
cloudy by early afternoon. A shortwave upper trough passing into
the Central Plains tomorrow will lower inland pressures enough to
generate a tight onshore pressure and produce moderate daytime
southerlies. This stout onshore flow will advect ample moisture
inland...equating to a partially cloudy afternoon with MaxTs in
the near 10 degree above normal inland middle 80s/coastal lower
80s. 31

&&

.PREV DISCUSSION... /ISSUED 633 PM CDT Sat Mar 25 2017/

AVIATION...
Quiet evening expected, but expect some areas of fog to begin
developing south of I-10 and west of I-45 later. This should
gradually expand further inland overnight and toward sunrise with
mclr skies, light winds and wet ground in place. Most guidance
showing the bulk of more significant fog remaining mostly west of
I-45, then burning off by mid morning with a transition to a few
hours of MVFR cigs. Cigs continue to lift but pressure gradient
tightens up late morning and during the afternoon on Sunday.
Would look for some southerly wind gusts >20kt during this time
period.  47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      58  86  65  86  66 /   0  10  20  10  10
Houston (IAH)              63  86  68  85  68 /   0  10  10  20  10
Galveston (GLS)            70  81  71  79  71 /  10  10  10  10   0

&&

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

$$

Discussion...31


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