766 FXUS64 KHGX 192324 AFDHGXArea Forecast Discussion National Weather Service Houston/Galveston TX 624 PM CDT Fri Sep 19 2025
...New AVIATION...
.KEY MESSAGES... Issued at 1245 PM CDT Fri Sep 19 2025
- More of the same Saturday.
- Increased moisture Sunday into next week should lead to better chances of showers and thunderstorms across the region.
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.DISCUSSION... Issued at 1245 PM CDT Fri Sep 19 2025
Generally a persistence forecast into Saturday. By Sunday, we`ll have a more predominate southeast flow in place. Corresponding increase in Gulf moisture should bring additional cloud cover and slightly lower high temperatures to the region Sunday into next week. Daily shower/tstm chances should gradually increase as well. Those with outdoor plans on Sunday, say from the metro area to the coast, might want to pack an umbrella just in case. Doesn`t necessarily look like a washout, but overall scattered precip coverage looks to be highest in that general vicinity (and even moreso offshore). Heading into next week, it looks like an equal opportunity situation for most in the region with scattered, mainly daytime activity inland and overnight/morning activity offshore.
Model-to-model forecast upper level pattern varies through a good part of next week. They`re not in the best agreement...which leads to forecast uncertainty in regards to the nitty gritty details and timing. Some suggest the potential for shortwave activity moving through aloft, others suggest a weak mid-late week frontal boundary to play with, etc, etc. Until we have some better consistency/confidence, blended fcsts advertising sct daily precip chances will be tough to beat at this point in time. 47
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.AVIATION... (00Z TAF Issuance) Issued at 617 PM CDT Fri Sep 19 2025
Persistence forecast with light and variable winds tonight, increasing by Friday afternoon around 8-12 knots. Patchy fog will be possible early in the morning, especially near KCXO. Scattered showers and storms will be possible in the afternoon; therefore, will continue with PROB30 at least for terminals along the I-10 corridor. Overall, VFR conditions are expected through most of the TAF cycle.
JM
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.MARINE... Issued at 1245 PM CDT Fri Sep 19 2025
Light to occasionally moderate east to southeast winds and 2 to 4 foot seas should continue through Saturday along with some isolated to widely scattered showers and thunderstorms. A more predominate southeast wind direction will emerge Sunday along with a gradual increase in rain chances into next week. 47
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.PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 70 94 72 92 / 20 20 20 30 Houston (IAH) 73 93 74 90 / 20 30 20 60 Galveston (GLS) 79 90 79 88 / 0 20 50 60
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.HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. &&
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DISCUSSION...47 AVIATION...JM MARINE...47
NWS HGX Office Area Forecast Discussion