Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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890
FXUS64 KHGX 090532
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1132 PM CST Sun Dec 8 2019

.AVIATION [06Z TAF Issuance]...
Low clouds have been slower to develop than expected this evening
and comparing the guidance to AMDAR the guidance has been too
bullish but trend is definitely in the right direction given the
changes in the AMDAR soundings below 900 mb. Expect stratus deck
to develop and expand across the region in the next 3 hours with
MVFR ceilings lowering toward morning and some patchy IFR ceilings
will likely develop. The stratus should be slow to rise through
12-15z then with the warm southwesterly low level flow expect
temperatures to rise more quickly and BL to expand and ceilings to
rise. Some sites will be a bit more likely to go VFR earlier in
the afternoon further north than near the coast. Speaking of coast
the confidence for some sea fog/haze is growing and have gone
ahead and added fog to the coastal areas late afternoon-evening.
Cold front should move into the CLL area around 03z and
temperatures to fall quickly...VCSH becoming -SHRA for the
northern half of the area first near CLL then expanding southward
as the front moves toward the coast. At this pace expect it into
the main hubs around 09-11z/Tuesday.

45
&&

.MARINE...
Added patchy fog to the coastal nearshore waters and bays for
Monday night. Not very confident it is going to get dense in the
evening but can`t rule it out.
45
&&

.PREV DISCUSSION /Issued 945 PM CST Sun Dec 8 2019/...

.UPDATE...

Did make some minor tweaks to the WX grids...mainly to include the
mention of patchy fog for the SW/coastal locations of the CWFA for
overnight/early Mon morning hours. Otherwise, things look on track
for the rest of the forecast. 41

&&

.PRELIMINARY POINT TEMPS/POPS...

College Station (CLL)  76  61  83  44  48 /  10  90  90  10  10
Houston (IAH)          74  64  82  52  56 /  10  90  90  30  10
Galveston (GLS)        72  65  79  59  63 /  20  80  90  40  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...

TX...None.
GM...None.

&&

$$


AVIATION/MARINE...45
PUBLIC...41



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