Area Forecast Discussion
Issued by NWS Brownsville, TX
Issued by NWS Brownsville, TX
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162 FXUS64 KBRO 232323 AAA AFDBRO Area Forecast Discussion...UPDATED National Weather Service Brownsville TX 523 PM CST Sat Nov 23 2024 ...New AVIATION... .SHORT TERM... (Tonight through Sunday night) Issued at 119 PM CST Sat Nov 23 2024 Benign weather pattern expected to prevail through the short term forecast period courtesy of continued influence from a broad 1020- 1025 hpa sfc high in place over the Gulf Coast States into the Southeastern U.S. Several computer models/ensembles continue to advertise a strengthening/expanding 591 mb ridge over the western and northwestern parts of Mexico. Given the close proximity, with our CWA being on the eastern flank of this feature, temperatures are expected to run warmer than normal levels. Sunday will be our warmest day of the weekend with daytime highs topping out in the mid to upper 80s (some 5-10F degrees above average). It will be cooler near the coastline/beach areas (due to the onshore flow) with highs expected to range between the upper 70s to mower 80s. Tonight and Sunday night, overnight lows will also be warmer than normal with values holding mainly in the 60s (lower 60s across the Northern Ranchlands; mid to upper 60s mid to lower RGV). && .LONG TERM... (Monday through next Saturday) Issued at 119 PM CST Sat Nov 23 2024 Mid-level ridging to our west will dominate for a majority of the long term, keeping temperatures toasty and skies rain-free. Temperatures, both high and low, are expected to remain well above average for late November for a majority of the period with highs in the 80s to low 90s, until a cold front on Thursday ushers in more seasonable temperatures. A weak cold front is expected on Tuesday bringing few impacts and little relief from the unseasonable temperatures. The greatest impacts of this front will be felt before and during fropa with increased winds and a brief shift to northerly winds. Temperature impacts are expected to be minimal, with a couple degrees of relief shown in high temperatures in the 80s on Tuesday. The second front, expected to pass through the CWA Thursday, is a tad stronger and will negotiate the high temperatures down to near- normal. Increased winds ahead of the front, beginning as early as Wednesday night, and directional shift to northerly winds remaining through Friday will keep temperatures comfortable. The increased winds associated with both fronts have potential to raise coastal concerns, including a moderate risk of rip currents, as well as other marine hazards discussed below. Moisture will increase Saturday as flow returns to being more south-southeasterly, however, even the highest PoPs along the coast and over the Gulf are low (20%). && .AVIATION... (00Z TAFS) Issued at 512 PM CST Sat Nov 23 2024 Currently, all TAF sites are experiencing scattered VFR clouds with a gentle to moderate southeasterly breeze. Clouds are expected to remain scattered VFR throughout the TAF cycle with a few MVFR clouds possible overnight. Winds should diminish after sunset to light and variable at KBRO while KHRL and KMFE could continue with a light southeasterly breeze. Winds will pick up to a moderate southeasterly breeze with gusts up to 20 to 25 knots by late Sunday morning due to an enhanced pressure gradient. && .MARINE... Issued at 119 PM CST Sat Nov 23 2024 Tonight through Sunday Night...Slightly adverse marine (SCEC) conditions are expected to develop along the Lower Texas Coast on Sunday due to an enhanced pressure gradient. Overall, light to moderate winds and low to moderate seas will prevail with high pressure largely in control over the south- central and southeastern U.S. Monday through Saturday...Moderate seas and light winds will decrease early in the period and be generally favorable until midweek ahead of an approaching cold front. Moderate winds and seas return midweek with Small Craft Exercise Caution to Small Craft Advisory conditions possible. A shift of winds from southerly to northerly is expected on Thursday as the cold front crosses the region. Rain chances are slim until the tail end of the period, with a low chance on Friday and Saturday (20%). && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 68 84 70 86 / 0 0 0 0 HARLINGEN 62 86 65 89 / 0 0 0 0 MCALLEN 65 88 67 91 / 0 0 0 0 RIO GRANDE CITY 62 88 62 89 / 0 0 0 0 SOUTH PADRE ISLAND 74 81 76 82 / 0 0 0 0 BAYVIEW/PORT ISABEL 66 83 68 86 / 0 0 0 0 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...23-Evbuoma LONG TERM....69-HK AVIATION...65-Irish