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Area Forecast Discussion
Issued by NWS Corpus Christi, TX
Issued by NWS Corpus Christi, TX
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871 FXUS64 KCRP 161729 AFDCRP Area Forecast Discussion National Weather Service Corpus Christi TX 1229 PM CDT Tue Jul 16 2024 ...New AVIATION... .SHORT TERM... (Tonight through Wednesday night) Issued at 155 AM CDT Tue Jul 16 2024 Key Messages: - Minor to moderate risk of heat related impacts Today and Wednesday. - Increasing chance of showers and thunderstorms across the Victoria Crossroads Wednesday. The general overall synoptic weather pattern looks similar to yesterday with South Texas sandwiched between two mid/upper level high pressure systems. Minor change is that the high pressure east of the area has shifted slightly southward across northern Gulf of Mexico, while the high west of the area has shifted eastward across the Plains. Regardless, S TX remains under the weakness between the two highs, that is draped from Mexico to the southeastern U.S. The moisture across S TX will remain limited today with PWATs generally around 1.5-1.8 inches. Thus, rain chances are low (<20%) but can not rule out a rogue shower along the sea breeze this afternoon. Also, may see a few streamer showers over the coastal waters after midnight tonight. Moisture is progged to increase tonight through Wednesday with PWATs around 2 inches, mainly across the eastern CWA. Models indicate a deepening trough digging southeastward from the northern plains, and pushing farther south into TX on Wednesday. This feature combined with an unstable airmass and the increased moisture will lead to a better chance of convection. The chance will remain low (10-20%) across the southern Coastal Bend, with a medium (30-40%)chance across the Victoria Crossroads. The better chance of convection across the Victoria Crossroads is due to closer proximity to the approaching upper trough, and stronger low level moisture convergence. Highs will remain near seasonal norms, however, with humid conditions the Heat Index is expected to range from 100-109 each afternoon. A few locations may briefly reach a heat index of 110, but not long enough nor widespread enough to warrant Heat Advisories at this time. && .LONG TERM... (Thursday through next Monday) Issued at 155 AM CDT Tue Jul 16 2024 Key Messages: - Minor to moderate risk of heat related impacts for the week - Low to moderate rain chances through early next week Very little change with this long term forecast update. We start out with upper level ridging retreating west as a trough begins to dig south across the Midwest. A cold front will be sent south across the state during the late stages of the work week. This boundary will likely stall just to our north and linger through the weekend. However, moisture will pool ahead of the boundary which will promote a 30-50% chance of showers and storms through early next week. Our greatest chances will come Friday and Saturday, generally east of Highway 281, as a H5 shortwave rotates through on the southern periphery of the trough. By early next week, rain chances look to spread west as an inverted trough develops along the Middle Texas coast. Increased cloud cover and rain chances will keep highs generally in the low 90s to around 100 degrees. Heat indices from the 105-109 range will lead to a moderate risk for heat-related impacts through the long term. A few spots may briefly reach 100, generally across the Coastal Bend, each afternoon. However, it will likely not be for a long enough time to warrant a Heat Advisory. && .AVIATION... (18Z TAFS) Issued at 1216 PM CDT Tue Jul 16 2024 VFR conditions will continue to prevail through the majority of this TAF cycle with very brief MVFR VSBYs possible tomorrow morning, mainly in VCT for patchy fog. South-southeasterly winds will range from 10-15 knots with gusts to around 20 knots this afternoon, becoming light and variable overnight tonight. && .MARINE... Issued at 155 AM CDT Tue Jul 16 2024 A weak to moderate onshore flow will continue today through Wednesday. Isolated to scattered showers and thunderstorms expected Wednesday. Weak to moderate south to southeasterly flow will continue into early next week. Isolated to scattered showers and thunderstorms will be possible daily with the best chances expected over the weekend and into early week. Coverage may become more scattered in nature by Monday as an inverted trough takes shape. && .PRELIMINARY POINT TEMPS/POPS... Corpus Christi 80 94 78 94 / 0 20 0 10 Victoria 76 92 75 94 / 0 40 0 40 Laredo 78 99 76 99 / 10 10 10 10 Alice 76 97 75 97 / 0 20 0 20 Rockport 81 92 80 93 / 10 20 0 20 Cotulla 77 100 77 100 / 0 0 0 10 Kingsville 78 95 77 96 / 0 10 0 10 Navy Corpus 82 90 81 91 / 10 20 0 10 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...TE/81 LONG TERM....TC/95 AVIATION...KRS/98