284 FXUS64 KBRO 030334 AFDBROArea Forecast Discussion National Weather Service Brownsville TX 1034 PM CDT Thu Oct 2 2025
...New DISCUSSION, MARINE...
.KEY MESSAGES... Updated at 1033 PM CDT Thu Oct 2 2025
- Life-threatening rip currents are expected at local beaches this weekend
- Isolated to scattered slow-moving showers and thunderstorms are expected into next week along the sea breeze each afternoon
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.DISCUSSION... Issued at 1033 PM CDT Thu Oct 2 2025
Weak mid-level low pressure gradually meanders westward across the Gulf this weekend into late next week as the next 500mb ridge builds across Texas. Rain chances return Friday afternoon with waves of moisture off the Gulf kicking up showers and thunderstorms offshore each night and inland with the sea breeze each afternoon. The highest POPs occur Saturday and Wednesday through Thursday.
With little wind or movement, any showers or thunderstorms that develop will be capable of producing locally heavy rainfall, especially along and east of US 77 this weekend and along and east of US 281 by mid week. Seasonal to slightly above normal temperatures continue through Thursday. Patchy shallow fog may develop across the ranchlands each night.
Life-threatening rip currents are expected along the lower Texas coast this weekend, with an increasing swell and period along the western Gulf. The Heat Risk will gradually increase from minor (level 1 of 4) to moderate (level 2 of 4) across the RGV through the week as humidity increases.
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.AVIATION... (00Z TAFS) Issued at 621 PM CDT Thu Oct 2 2025
VFR conditions are expected to prevail through the TAF period with an ENE breeze Friday afternoon.
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.MARINE... Issued at 1033 PM CDT Thu Oct 2 2025
Generally favorable winds and seas on Friday give way to an increasing easterly swell and chop Saturday through Sunday across coastal and offshore waters. The chance of showers and thunderstorms persists through the forecast period, especially offshore, as weak mid-level low pressure slowly works into the southwestern Gulf. Waterspouts may be possible near any showers or thunderstorms this weekend and next week, especially offshore.
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.PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 73 91 74 90 / 0 20 20 40 HARLINGEN 69 92 71 90 / 0 20 10 40 MCALLEN 72 96 74 94 / 0 20 10 30 RIO GRANDE CITY 69 96 70 95 / 0 0 0 10 SOUTH PADRE ISLAND 80 86 79 86 / 0 20 30 40 BAYVIEW/PORT ISABEL 74 89 74 88 / 0 20 20 40
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.BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. &&
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SHORT TERM...56-Hallman LONG TERM....56-Hallman AVIATION...56-Hallman
NWS BRO Office Area Forecast Discussion