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Area Forecast Discussion
Issued by NWS Corpus Christi, TX
Issued by NWS Corpus Christi, TX
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472 FXUS64 KCRP 192323 AFDCRP Area Forecast Discussion National Weather Service Corpus Christi TX 623 PM CDT Fri Jul 19 2024 ...New AVIATION... .SHORT TERM... (Tonight through Saturday night) Issued at 303 PM CDT Fri Jul 19 2024 Somewhat similar pattern this afternoon/evening that we had yesterday with spotty convection due to 1700 J/kg CAPEs, 15 knots of shear (sfc-6km), and a 500 mb shortwave trough moving through South Texas. So, lots of pop up showers and thunderstorms firing along the boundaries, and then dissipating. The showers and thunderstorms should be isolated through the evening, before we lose the heat of the day, and showers diminish. Going into the evening the 500 mb shortwave rotates east of the region, as well, which should lead to another warm, muggy night with showers and thunderstorms possible, mainly over the Gulf, but an isolated shower or thunderstorm could stray onshore. The afternoon looks to still be able to kick off some showers and thunderstorms in the Victoria Crossroads as the tail of the 500 mb shortwave leaves SE Texas. Temperatures will again rise to 90-100F for the High Saturday, and with the min RH ranging from 35-70% will expect that we will heat indices will range from 105 to 109F again with a few locations briefly flirting with 110F. So mainly a moderate heat risk is expected for Saturday. Saturday night, it looks like we get into weak ridging aloft so we should be rain free, other than streamers over the Gulf. However, as we get closer to Sunday morning, a tropical wave will approach the Gulf Coast which will set us up for a wetter pattern in the upcoming week. && .LONG TERM... (Sunday through next Thursday) Issued at 303 PM CDT Fri Jul 19 2024 An upper-level trough will continue to deepen across the Mid to Upper Mississippi to Ohio River Valley late in the weekend through mid-next week while extending southwestward into our area. The combination of the trough aloft, the arrival of deep Gulf moisture and several mid level disturbances will lead to increased rain and thunderstorm chances through the period. Sunday will start off the Extended period with PoPs at around 20-50% over the eastern half of the CWA. Then chances increase and expand westward Monday through Wednesday next week, persisting through the end of the work week. Highest PoPs though, can be expected Tuesday to Wednesday during the day, when probabilities reach a 60-80% areawide. Accumulations of around 1-3 inches are forecast through late week across South Texas, with the highest amounts expected over the Coastal Plains and Victoria Crossroads. With this in mind, WPC has continued to carry a Marginal Risk of excessive rainfall Monday through Wednesday morning. In terms of the HeatRisk, it will remain at Minor to Moderate through the end of the week. No other hazards are expected at this time. && .AVIATION... (00Z TAFS) Issued at 620 PM CDT Fri Jul 19 2024 VFR conditions are generally expected throughout this TAF cycle with light winds. Thunderstorms associated with the sea breeze are currently impacting ALI and COT. These storms should dissipate within the next few hours with the loss of daytime heating. Otherwise, there is a medium chance for ALI to fall into MVFR conditions between 10-13z tomorrow morning with the development of patchy fog. && .MARINE... Issued at 303 PM CDT Fri Jul 19 2024 Weak to occasionally moderate south to southeasterly flow will persist through the middle of next week. Winds may become variable at times through Saturday, as a boundary nears the region. Low to medium rain chances of 20 to 50 percent through the weekend will increase to medium to high chances of 50 to 80 percent heading into the middle of next week. && .PRELIMINARY POINT TEMPS/POPS... Corpus Christi 97 77 94 78 / 20 10 20 0 Victoria 95 74 93 75 / 30 20 30 0 Laredo 101 78 99 77 / 10 10 10 0 Alice 99 75 97 75 / 20 10 20 0 Rockport 93 79 92 80 / 20 20 20 0 Cotulla 100 76 99 77 / 30 0 10 0 Kingsville 98 76 96 76 / 20 10 20 0 Navy Corpus 93 79 90 81 / 20 20 20 0 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...JSL LONG TERM....ANM AVIATION...JCP/84