536 FXUS64 KHGX 012329 AFDHGXArea Forecast Discussion National Weather Service Houston/Galveston TX 629 PM CDT Wed Oct 1 2025
...New AVIATION...
.KEY MESSAGES... Issued at 1054 AM CDT Wed Oct 1 2025
- Dry conditions persist through Thursday. Continue to use caution when working with open flame or equipment that can cause sparks and start a fire.
- Rain chances rise on Friday into the weekend when moisture deepens enough to allow for some isolated seabreeze showers/storms along the coast.
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.DISCUSSION... Issued at 1054 AM CDT Wed Oct 1 2025
Mostly sunny skies, light winds, and dry conditions will continue to prevail today and tomorrow with relative humidity values dropping down into the 30-40 percent range. These dry conditions combined with dry vegetation will lead to elevated fire weather concerns as fires may be quick to start (more on this in the fire weather discussion below).
Increasing easterly winds Friday into the weekend (due to a strengthening surface high pressure over the Mid-Atlantic) will bring a slow return of moisture to the region. Some isolated shower and thunderstorm will be possible during the afternoon/evening hours along the sea breeze beginning Friday and continuing into at least mid week next week. This activity will be mostly confined to the coast/south of I-10 through the weekend, but a deeper push of moisture may lead to some isolated activity north of I-10 beginning next week.
Temperatures will be running above to slightly above normal through next week with high temperatures in the upper 80s to mid 90s and low temperatures in the upper 60s to mid 70s.
Fowler
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.AVIATION... (00Z TAF Issuance) Issued at 623 PM CDT Wed Oct 1 2025
Seabreeze is situated from Sugarland to the I-10 corridor across the Houston area. Not confident it`ll make it all the way up to IAH before sunset, but if it does wind directions may temporarily become a bit more southeasterly there for a few hours than what is indicated in the 0z TAF package (110 degrees). Regardless, speeds will quickly diminish after sunset and become more variable in direction overnight...probably trend n/ne later tonight and in the morning. Rest of the fcst is one of persistence with VFR conditions prevailing. 47
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.MARINE... Issued at 1054 AM CDT Wed Oct 1 2025
Dry weather, low seas, and light winds driven by the sea breeze/land breeze circulation will prevail through Thursday. There will be an increasing easterly fetch developing late Thursday night into Friday that will prevail into next week. Easterly winds around 15-20kt with gusts to 25kt will begin on Friday and continue through the weekend, so Small Craft Advisories may be needed at times if the gusts become frequent enough. The increase in winds will also lead to an increase in seas with wave heights generally around 4-7ft beginning Friday evening through Saturday night.
Isolated to scattered showers and storms will be possible beginning on Friday and continuing through next week. Greatest coverage/highest chances of the activity will be in the coastal waters, but some isolated activity will be possible near the shore/Bays as well.
The persistent onshore winds will lead to higher than normal tides beginning Saturday (around 3-3.4 ft above MLLW during times of high tide).
Fowler
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.FIRE WEATHER... Issued at 1054 AM CDT Wed Oct 1 2025
No changes from this morning`s Fire Weather Update:
Active burn bans in SE Texas: Madison, Colorado, and Wharton counties.
Dry conditions continue over the next few days with afternoon RH values dropping to 27-40% for inland areas through Thursday. Fuels are generally dry on the whole, with observed 10 hour fuel moisture below the 25th and 10th percentiles over portions of SE Texas. Driest fuels are generally located in our northwestern counties, where some locations are forecasted to see fuel moisture fall below the 3rd percentile. On the other hand, speeds and gusts will remain generally light during this period, favorable for firefighting efforts and thus mitigating the overall fire weather threat.
Bottom line, areas across SE Texas will be vulnerable to wildfires due to the dry conditions. As mentioned previously, those preforming land clearing should exercise caution, ensuring any fires are contained and have contingency plans should they grow out of control. Individuals should be mindful of equipment that could create unintended sparks, (i.e. loose chains) especially in areas with flammable surfaces.
Easterly flow and rising moisture on Friday will lead to improved rain chances over the weekend.
03
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.PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 68 93 67 91 / 0 0 0 10 Houston (IAH) 71 93 72 91 / 0 0 0 10 Galveston (GLS) 77 89 78 87 / 0 0 30 40
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.HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None.
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DISCUSSION...Fowler AVIATION...47 MARINE...Fowler
NWS HGX Office Area Forecast Discussion