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Area Forecast Discussion (AFD)

Issued by Houston/Galveston, TX (HGX)

                            
000
FXUS64 KHGX 161616
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1116 AM CDT Tue Apr 16 2019

.DISCUSSION...
No major changes planned for this update. High clouds moving in 
from the west are not expected to impact afternoon temperatures 
too much, but the continued onshore winds will help to increase
low-level moisture through the day. Current grids look to be on
track at this time. 41

&&

.MARINE... 
The moderate onshore flow will gradually strengthen tonight and a 
longer stronger fetch should help to build seas and increase runup. 
Will continue the SCEC for the Gulf waters through 7 PM then up it 
to an SCA for all the Gulf waters. Periods of SCA conditions will 
prevail through Thursday morning then with the cold frontal passage 
will likely return. 

Tide levels this morning about 0.5 to 1 foot above normal and these 
should creep up as well...more so for the Gulf facing as runup 
contributes tonight and Wednesday.  Will need to keep an eye on 
water levels Wed night as they'll top out around 3 to 3.5 ft MLLW 
which may cause some minor issues at the HWY 124/87 intersection on 
the Bolivar Peninsula. 
45
&&

.AVIATION...
Mix of VFR/MVFR this morning with cloud streets that abound under 
the expanding cirrus shield. CU developing around 2100-2800ft so far 
this morning but should rise and likely scatter out more this 
afternoon. Strong inversion around 3500 feet should cap out the CU.
Gusty SSE winds on tap throughout the day 10-20g20-29kt should be 
the range for most of the inland sites. MVFR ceiling developing 
tonight between 02-06z. 
45

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      81  67  79  62  74 /   0  20  60  90  20 
Houston (IAH)              81  68  79  67  77 /   0  10  50  90  60 
Galveston (GLS)            75  70  75  69  77 /   0  10  30  80  70 

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...Small Craft Advisory from 7 PM this evening to 7 AM CDT Thursday 
     for the following zones: Coastal waters from Freeport to 
     Matagorda Ship Channel TX out 20 NM...Coastal waters from 
     High Island to Freeport TX out 20 NM...Waters from Freeport 
     to Matagorda Ship Channel TX from 20 to 60 NM...Waters from 
     High Island to Freeport TX from 20 to 60 NM.

     SMALL CRAFT SHOULD EXERCISE CAUTION until 7 PM CDT this evening 
     for the following zones: Coastal waters from Freeport to 
     Matagorda Ship Channel TX out 20 NM...Coastal waters from 
     High Island to Freeport TX out 20 NM...Waters from Freeport 
     to Matagorda Ship Channel TX from 20 to 60 NM...Waters from 
     High Island to Freeport TX from 20 to 60 NM.

&&

$$