LONG TERM
(Sunday Night through Friday)
Issued at 357 AM CDT Sat Jul 27 2024

This portion of the total forecast will have no mention of showers and thunderstorms within the BRO CWFA. This will be due to 500 mb high pressure becoming the dominant weather feature across Deep South Texas and the Rio Grande Valley, with the center of the mid- level ridge positioned just south of Louisiana, but eventually becoming reentered over north Texas by the end of the period.
Additionally, precipitable water values will decrease, and hold, to near 1.50 inches after the recent string of convection-inducing 2+ inches.

Temperature-wise, as the new work week progresses, the atmosphere dries out, and 500 mb high pressure remains dominant, highs will generally increase roughly about 1 degree every other day, such that near to slightly above normal values will be the rule and not the exception. Although a HEAT ADVISORY is not likely to be needed, heat index values will, however, support a daily SPECIAL WEATHER STATEMENT.

AVIATION
(12Z TAFS)
Issued at 638 AM CDT Sat Jul 27 2024

Light and variable winds with some passing mid to high clouds prevail across Deep South Texas. BRO radar shows some convection, mainly across the Gulf waters, early this morning. Another round of showers and pockets of thunderstorms are expected to develop later this morning into the afternoon/early evening hours. Mainly VFR conditions are expected for the next 24 hours, except MVFR conditions will be possible in and around any convection.
Southeasterly winds are generally expected, with some variability near any showers and thunderstorms.

MARINE
(Today through Sunday)
Issued at 357 AM CDT Sat Jul 27 2024

Light to moderate winds and low to moderate seas will prevail through Sunday as high pressure continues across the Northern Gulf. Unsettled weather is expected through much of the period with scattered showers and isolated thunderstorms. Enhanced winds and seas will be possible near any convection.

(Sunday Night through Friday)
Surface high pressure over the Gulf of Mexico will interact with thermal low pressure over inland Mexico through this portion of the total marine forecast. Although low to moderate seas are anticipated, moderate to breezy winds will occur, resulting in occasional Small Craft Should Exercise Caution for the Laguna Madre and Gulf of Mexico waters from 0 to 20 nautical miles offshore.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 89 79 91 81 / 60 40 20 0 HARLINGEN 90 76 92 78 / 60 30 20 0 MCALLEN 90 79 94 80 / 70 40 20 0 RIO GRANDE CITY 89 76 94 78 / 60 40 20 0 SOUTH PADRE ISLAND 86 81 87 82 / 50 30 10 0 BAYVIEW/PORT ISABEL 87 78 90 79 / 60 30 10 0

BRO WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.