FXUS64 KBRO 190352 AFDBRO Area Forecast Discussion National Weather Service Brownsville TX 1052 PM CDT Wed Mar 18 2026 ...New DISCUSSION, MARINE... .KEY MESSAGES... Updated at 1048 PM CDT Wed Mar 18 2026 Key Messages: * Warm and dry weather continues into next week. * Wildfire threat remains elevated across Deep South Texas. && .DISCUSSION... Issued at 1048 PM CDT Wed Mar 18 2026 An upper-level ridge over the Southwestern US looks to remain in place into next week, resulting in hat and dry conditions through the forecast. Southerly to southeasterly winds are forecast to continue through the period, with gusts likely each afternoon. Afternoon relative humidity values will likely range from 20-30%, with lower values possible across western portions of the CWA. Fire weather conditions will likely remain a concern through early next week, due to the low relative humidity values. However, 20ft wind speeds are forecast to remain below 15 mph, which will likely limit the potential for elevated fire weather conditions. High temperatures are forecast to remain in the 80s Thursday, before climbing into the 90s Friday and remaining in the 90s through the remainder of the forecast. && .AVIATION... (00Z TAFS) Issued at 625 PM CDT Wed Mar 18 2026 VFR conditions are forecast to continue through the period. Winds are forecast to become light overnight, then pick up out of the southeast again late Thursday morning. && .MARINE... Issued at 1048 PM CDT Wed Mar 18 2026 Generally favorable marine conditions are expected to continue through the period. Light to moderate southeasterly winds and slight seas are forecast to continue into next week, courtesy of persistent high pressure over the central Gulf. Wind speeds along the Laguna Madre may increase 15-20 knots Saturday and Sunday afternoons in response to tightening pressure gradients along the Lower Texas Coast, possibly requiring brief Small Craft Should Exercise Caution headlines. && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 60 83 61 85 / 0 0 0 0 HARLINGEN 56 85 57 89 / 0 0 0 0 MCALLEN 61 88 62 92 / 0 0 0 0 RIO GRANDE CITY 56 88 57 91 / 0 0 0 0 SOUTH PADRE ISLAND 66 74 67 76 / 0 0 0 0 BAYVIEW/PORT ISABEL 60 80 60 83 / 0 0 0 0 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...60-BE LONG TERM....60-BE AVIATION...60