461  
FXUS64 KBRO 210325  
AFDBRO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1025 PM CDT SUN JUL 20 2025  
   
..NEW DISCUSSION, MARINE
 
 
   
DISCUSSION
 
 
ISSUED AT 1021 PM CDT SUN JUL 20 2025  
 
PARTLY CLOUDY TO MOSTLY SUNNY SKIES AND VERY LOW (LESS THAN 10%)  
CHANCES OF PRECIPITATION CONTINUE ACROSS DEEP SOUTH TEXAS THROUGH  
THURSDAY AS MID-LEVEL RIDGING AND SUBSIDENCE ALOFT PERSIST, WITH  
TEMPERATURES RANGING FROM AVERAGE (MID-TO UPPER 90S) CLOSER TO THE  
COAST TO SLIGHTLY ABOVE AVERAGE FURTHER INLAND (LOWER 100'S ALONG  
AND WEST OF US-281). CLOUDS AND MOISTURE BEGIN TO BUILD FRIDAY  
INTO SATURDAY AS A MID-LEVEL TROUGH ADVANCES WESTWARD TOWARDS THE  
LOWER TEXAS GULF COASTLINE, RESULTING IN MORE SEASONABLE  
TEMPERATURES ACROSS THE CWA INTO NEXT MONDAY IN ADDITION TO A  
POSSIBLE SLIGHT INCREASE IN PROBABILITIES OF PRECIPITATION, WITH  
HIGHEST CHANCES ALONG AND EAST OF US-281. THIS MAY ALSO ALLOW FOR  
THE EXTENT OF HIGHS IN THE LOWER 100'S TO BE LIMITED TO THE RIO  
GRANDE PLAINS. HIGHS IN THE MID 80'S AT THE COAST AND OVERNIGHT  
LOWS IN THE 70S ACROSS DEEP SOUTH TEXAS ARE EXPECTED THROUGH THE  
PERIOD AS WELL AS A SLIGHT (LEVEL 1/4) TO MODERATE (LEVEL 2/4)  
HEAT RISK AS AFTERNOON HEAT INDICES RANGE AROUND 105-110 DEGREES  
F, BECOMING MOSTLY MODERATE LATER IN THE WEEK AS MOISTURE  
INCREASES. YET, THERE REMAINS SOME UNCERTAINTY AND RESULTING POP'S  
AND TEMPERATURES WILL BE DEPENDENT ON THE LOCATION OF THE LOWER  
TO MID LEVEL SURFACE LOW, OR LACK THEREOF.  
 
A MODERATE RISK OF RIP CURRENTS CONTINUE THROUGH THE REMAINDER OF  
TONIGHT, BECOMING A LOW RISK BY MONDAY MORNING.  
 

 
   
AVIATION
 
 
(00Z TAFS)  
ISSUED AT 558 PM CDT SUN JUL 20 2025  
 
GUSTY SOUTHEASTERLY WINDS (AROUND 15-20 KNOTS, GUSTING TO 25-30  
KNOTS) ARE LIKELY TO CONTINUE FOR THE NEXT FEW HOURS, GRADUALLY  
SUBSIDING BEYOND SUNSET DOWN TO ABOUT 10-15 KNOTS SUSTAINED  
OVERNIGHT, THOUGH GUSTS UP TO 15-20 KNOTS MAY PERSIST AT KMFE.  
VFR CONDITIONS ARE EXPECTED TO PREVAIL AT ALL TAF SITES ALONG WITH  
A MODERATE (30-40%) CHANCE FOR BRIEF INTERVALS OF MVFR CEILINGS  
OVERNIGHT THROUGH A FEW HOURS FOLLOWING SUNRISE MONDAY MORNING.  
BREEZY SOUTHEASTERLY WINDS RETURN THROUGHOUT MONDAY MORNING TO  
SIMILAR SPEEDS AS TODAY BY THE AFTERNOON HOURS.  
 

 
   
MARINE
 
 
ISSUED AT 1021 PM CDT SUN JUL 20 2025  
 
MOSTLY GENTLE TO MODERATE SOUTHEASTERLY TO SOUTHERLY WINDS AND  
SLIGHT TO MODERATE (2-4 FEET) SEAS ARE EXPECTED TO CONTINUE THROUGH  
NEXT MONDAY. MODERATE TO FRESH WINDS AND BRIEF PERIODS OF SMALL  
CRAFT EXERCISE CONDITIONS AND HEADLINES MAY BE POSSIBLE ACROSS THE  
LAGUNA MADRE DURING THE AFTERNOON AND EARLY EVENING HOURS THROUGH  
TUESDAY, RESULTING FROM A LOCALLY ENHANCED PRESSURE GRADIENT. MAINLY  
DRY CONDITIONS ARE LIKELY TO CONTINUE THROUGH THURSDAY, FOLLOWED BY  
AN INCREASED CHANCE OF SHOWERS AND THUNDERSTORMS FRIDAY AND INTO THE  
REST OF THE PERIOD, WITH THE HIGHEST PROBABILITIES (UP TO A 30%  
CHANCE) LIKELY OVER THE OFFSHORE (20-40 NM) GULF WATERS.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
BROWNSVILLE 78 94 79 94 / 0 0 0 0  
HARLINGEN 76 97 76 97 / 0 0 0 0  
MCALLEN 79 100 79 100 / 0 0 0 0  
RIO GRANDE CITY 77 102 77 101 / 0 0 0 0  
SOUTH PADRE ISLAND 80 88 80 88 / 0 0 0 0  
BAYVIEW/PORT ISABEL 78 94 78 93 / 0 0 0 0  
 

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

 
 

 
 
SHORT TERM...65-IRISH  
LONG TERM....65-IRISH  
AVIATION...65-IRISH  
 
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