458 FXUS64 KHGX 261705 AFDHGXArea Forecast Discussion National Weather Service Houston/Galveston TX 1205 PM CDT Fri Sep 26 2025
...New AVIATION...
.KEY MESSAGES... Issued at 1237 AM CDT Fri Sep 26 2025
- Outside of an isolated shower or thunderstorm over the coastal Gulf waters very early this morning, fair weather will dominate until late next week.
- Expect seasonable temperatures around or slightly above late September averages and low humidity to join up with a mostly sunny sky.
- Low humidity may push down to near critical values today and Saturday, then remain fairly low into the week. Fortunately, seasonably typical fuel moisture will not aggravate the situation and light winds should be helpful. Regardless, some extra caution when using open flame or equipment that can cause sparks is a good idea for the next several days.
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.DISCUSSION... Issued at 1237 AM CDT Fri Sep 26 2025
For the next several days the stars of the show will be fair weather, seasonably warm temperatures, and unseasonably low humidity. It`s maybe not quite the "textbook" fall conditions, but it`s not summer, and that`s something in itself!
For today in particular, and perhaps into Saturday as well, low RH will be a nice break from months of oppressively humid conditions, but could be something to keep an eye on if your weekend plans involve open flame or stuff that sparks. Today in particular, we could see a swath of sub-30 percent afternoon RH values emerge west of the Houston metro, and particularly west of the Brazos River.
Fuel moisture is around typical levels for this time of year which isn`t horrible, but this can be a burny time of year, so it`s not necessarily a mitigating factor. What will be a mitigating factor is the relatively light winds expected. If you`re a professional and your prescription doesn`t require a lot of wind, this could be a good situation for fire use; but for most of us, it`ll be worth some extra caution if you need to do any work with fire this weekend. If you don`t get paid to set things on fire, make sure you`re extra ready to keep things from getting out of hand.
As we start the new week, high pressure will reign, and we should get mighty close to a wind pattern that is driven entirely by the landbreeze/seabreeze circulation. Yes, this means some onshore flow each afternoon from Monday onward, and yes, some humidity will start to filter back in, at least for coastal areas (not so sure how much penetration inland we`re going to get, really). But despite that, conditions should still remain fairly dry as we will not be seeing such weak flow push in a ton of moisture. In fact, I don`t have a 70 degree dewpoint come back to even the immediate coast until the end of this forecast period. Pair that with plenty of sun and temps ranging from the 60s around dawn to around 90 degrees in the afternoon, and it`s quite a recipe to close out September!
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.AVIATION... (18Z TAF Issuance) Issued at 1203 PM CDT Fri Sep 26 2025
Mostly VFR conditions and light winds expected through the TAF period. Winds generally from the north today before becoming variable. Winds more variable at the coast. Could have more clouds and a passing SHRA at the coast during the morning hours tomorrow. For now, we are just including a few low clouds at GLS but remaining VFR.
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.MARINE... Issued at 1237 AM CDT Fri Sep 26 2025
Outside of an isolated shower through the rest of tonight, fair weather looks to dominate through the weekend and a large chunk of next week. Expect winds generally out of the northeast through at least the weekend - a bit more of a northerly component today, gradually taking on more of an easterly component later in the weekend. Though mostly light to moderate in strength, winds may come right up to the threshold for small craft to exercise caution at times during the weekend, particularly in the range of 20 nm to 60 nm from shore.
At the shore, water levels look to remain above astronomical norms despite the offshore winds, likely due to their speeds being relatively light most of the time. At times of high tide, water levels may end up around highest astronomical tide (about 2.5 feet above MLLW) rather than slightly above MHHW. Because of the light, offshore flow, rip current risk should be relatively low.
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.PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 63 90 62 89 / 0 0 0 0 Houston (IAH) 68 90 68 90 / 0 0 0 0 Galveston (GLS) 76 87 76 87 / 10 10 0 0
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.HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. &&
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DISCUSSION...Luchs AVIATION...Self MARINE...Luchs
NWS HGX Office Area Forecast Discussion