


Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
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327 FXUS64 KHGX 072342 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 642 PM CDT Mon Jul 7 2025 ...New AVIATION... .KEY MESSAGES... Issued at 1136 AM CDT Mon Jul 7 2025 - A daily risk of showers and thunderstorms continues through the end of the week. Not every location will receive rain every day. - Locally heavy thunderstorms capable of localized flooding cannot be ruled out. - Seasonably hot and very humid conditions to prevail through the forecast period. && .DISCUSSION... Issued at 1103 AM CDT Mon Jul 7 2025 Our region is beginning to feel the influence of a mid/upper low that is currently in the Gulf, centered south of Louisiana. This low will continue it`s slow westward progression over the next few days, enhancing shower/thunderstorm chances across southeast Texas through Wednesday. By Thursday, SE Texas may experience the influence of another trough that builds southwestward from the Midwest into the Arklatex. With continuously high PWATs in place, the added lift from these mid/upper disturbance will result in daily shower/thunderstorm chances through the end of the week. Not every community will receive rain each day. But those that do could experience locally heavy rainfall and localized flooding. Ridging may try to build by the end of the week / weekend. But long range models have consistently over estimated ridging beyond 5 or 6 days. When looking at the day-to-day forecast, you may notice that Friday`s rain chances are the lowest of the week. This is due to the lower PWATs indicated by the global models on that day. Regarding temperatures, inland afternoon highs are expected to average in the low/mid 90s, with coastal areas generally around 90. It will remain quite humid. A few areas may achieve the upper 90s by the end of the week if ridging manages to build enough. Generally speaking, these values are pretty normal for this time of year. But even normal southeast Texas July heat is hazardous, especially to sensitive groups (example: elderly and young children) and for people doing moderate to strenuous physical activity outside. Self && .AVIATION... (00Z TAF Issuance) Issued at 621 PM CDT Mon Jul 7 2025 Iso SH/TS will continue to dissipate within the next hour or so. Mostly tranquil weather is expected during throughout the night hours. Light S-SE winds through around 15Z. Winds become SSW at 6-12KTS from 15-18Z and then SSE from 18-23Z. Another round of SH/TS is expected on Tue, starting along the southern portions of SE TX in the morning and expanding in the central and northern portions during the late morning and afternoon hours. Storms will dissipate during the evening to early night hours. In and near storms, expect frequent lightning, gusty VRB winds, and brief periods of lower cigs/vis due to heavy rain. Cotto && .MARINE... Issued at 1136 AM CDT Mon Jul 7 2025 Scattered showers and thunderstorms are expected most days this week. Winds through the middle of the week will generally be from the south in the 10-15 knot range with occasionally gusts. Seas should generally be 2-3 feet. However, winds and seas are expected to increase somewhat by the end of the week. Some of the models are showing a relatively large 15-20 knot fetch developing over the Gulf, suggesting that the current forecast of 4 foot seas in our offshore zones is a little low. Coudln`t rule out higher seas if the larger fetch scenario pans out. Self && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 74 91 73 92 / 10 40 10 40 Houston (IAH) 76 92 75 93 / 10 70 10 60 Galveston (GLS) 83 90 82 90 / 20 50 20 50 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ DISCUSSION...Self AVIATION...Cotto MARINE...Self