


Area Forecast Discussion
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
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994 FXUS64 KBRO 262323 AFDBRO Area Forecast Discussion National Weather Service Brownsville TX 623 PM CDT Thu Jun 26 2025 ...New AVIATION... .SHORT TERM... (Tonight through Friday night) Issued at 1220 PM CDT Thu Jun 26 2025 The latest radar and satellite imagery depict isolated to scattered activity along the immediate coast and Gulf waters this afternoon. Isolated to scattered showers and thunderstorms should develop over the next few hours as increasing diurnal instability interacts with high moisture content transported well established low level southeasterly flow. Similar to previous days, any impacts will be limited to brief, heavy rainfall, lightning, and gusty winds to around 40 MPH. With the loss of daytime heating, activity should wane by the evening hours. Expect another mild night tonight and tomorrow night with lows in the 70s. As winds become light, some patchy fog may develop across portions of the region late tonight into early tomorrow morning, but should quickly burn off by tomorrow morning. Otherwise, expect near to slightly above normal temperatures across Deep South Texas with heat index values ranging from 100-106 degrees this afternoon and tomorrow afternoon. Low precipitation chances continue on Friday, but look to remain around or below 20% as a plume of Saharan dust/slightly drier begins to filter in from the east. This may result in some hazy skies late in the day on Friday. && .LONG TERM... (Saturday through next Thursday) Issued at 1220 PM CDT Thu Jun 26 2025 Near normal temperatures and daily low to medium (20-60%) precipitation chances continue through next week. Most of the region should remain rain-free on Saturday, with the exception being along the immediate coast and Gulf waters. However, still expecting more limited coverage and development as the plume of Saharan dust translates west/northwest. An uptick in rain chances (around 40-60%) return on Sunday and Monday as a shortwave approaches the region. Most activity should remain diurnally- driven with any thunderstorms that develop being capable of gusty winds, lightning, and locally heavy rainfall. Heading into the first few days of July, precipitation chances continue but should be lower (around 20-30%) each day. && .AVIATION... (00Z TAFS) Issued at 622 PM CDT Thu Jun 26 2025 Through 00z Saturday....Flying conditions will remain VFR through the 00z TAF period. Breezy southeast winds 10-15 kts gusting as high as 20 kts this evening will diminish later tonight to 5-10 kts. Southeast winds will pick up once again during the late morning and afternoon hours with magnitudes of 10-15 kts, gusting up to 20 kts or so. && .MARINE... Issued at 1220 PM CDT Thu Jun 26 2025 Generally favorable marine conditions will prevail through the forecast period with low to moderate seas and light to moderate southeast winds. Occasional gusts upwards cannot be ruled out during the afternoon hours due to a locally enhanced pressure gradient. Otherwise, daily chances for isolated to scattered showers and thunderstorms will continue through early next week. && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 77 92 78 92 / 0 10 10 20 HARLINGEN 73 94 75 93 / 0 10 0 20 MCALLEN 77 97 77 97 / 0 10 0 10 RIO GRANDE CITY 74 95 76 95 / 0 10 0 10 SOUTH PADRE ISLAND 79 87 79 87 / 10 10 10 20 BAYVIEW/PORT ISABEL 76 91 77 91 / 0 10 10 20 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...22-Garcia LONG TERM....22-Garcia AVIATION...23-Evbuoma