


Area Forecast Discussion
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
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946 FXUS64 KBRO 040330 AFDBRO Area Forecast Discussion National Weather Service Brownsville TX 1030 PM CDT Thu Jul 3 2025 ...New SHORT TERM, LONG TERM, MARINE... .SHORT TERM... (Tonight through Saturday night) Issued at 1029 PM CDT Thu Jul 3 2025 High pressure across the Gulf continues to build into the weekend, with drier air keeping most Independence Day celebrations rain- free. Some CAMs increase the chance for thunderstorms in the evening near Zapata County and across portions of the ranchlands on Saturday, with a pocket of moisture and increased instability across the brush country. Otherwise, expect near normal highs and lows. The humidity will help drive a Moderate (level 2 of 4) Heat Risk across the RGV on Independence Day and Saturday. With it being a holiday weekend, nice weather, and a very borderline rip current situation due to wave heights around 3 ft and swell period at times reaching above 5 seconds, will maintain a moderate rip current risk into Saturday morning for some additional awareness. && .LONG TERM... (Sunday through next Friday) Issued at 1029 PM CDT Thu Jul 3 2025 The mid-level ridge pivots back across the Desert SW into next week, allowing weak 500mb low pressure to nestle along the lower Texas coast and some low level moisture to bring back some rain chances. Above normal PWATs return through Wednesday, increasing POPs each afternoon towards 20 percent, mainly along the sea breeze, especially Monday and Tuesday. Drier air arrives by late week as high pressure briefly builds again. Expect near to slightly above normal temperatures through mid week, with above normal temperatures by late week. Minor (level 1 of 4) to briefly Moderate (level 2 of 4) Heat Risk is expected daily. && .AVIATION... (00Z TAFS) Issued at 621 PM CDT Thu Jul 3 2025 VFR conditions are expected to give way to MVFR late this evening and continue into Friday morning before VFR ceilings return. Breezy southeasterly winds are expected on Independence Day, with gusts to nearly 30 kts possible during the afternoon and early evening hours. && .MARINE... Issued at 1029 PM CDT Thu Jul 3 2025 Now through Next Friday...Surface high pressure generally holds across the Western Gulf with light to briefly moderate southeasterly winds through the forecast period, allowing seas to gradually diminish by the weekend and remain favorable through Friday. Isolated showers and thunderstorms offshore taper off tonight and return again Monday into Wednesday. && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 79 91 79 90 / 0 0 0 0 HARLINGEN 76 93 76 92 / 0 0 0 10 MCALLEN 78 94 78 93 / 0 0 0 10 RIO GRANDE CITY 76 93 76 91 / 0 10 10 10 SOUTH PADRE ISLAND 79 86 79 86 / 0 0 0 0 BAYVIEW/PORT ISABEL 77 90 77 90 / 0 0 0 0 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...56-Hallman LONG TERM....56-Hallman AVIATION...56-Hallman