Area Forecast Discussion
Issued by NWS Corpus Christi, TX
Issued by NWS Corpus Christi, TX
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538 FXUS64 KCRP 162313 AFDCRP Area Forecast Discussion National Weather Service Corpus Christi TX 613 PM CDT Sun Jun 16 2024 ...New AVIATION... .SHORT TERM... (Tonight through Monday night) Issued at 430 PM CDT Sun Jun 16 2024 Key Messages: - Increasing shower and thunderstorms chance beginning Monday The National Hurricane Center has given the system in the Southwestern Gulf of Mexico a HIGH 70% chance of development over the next 7 days with a 30% chance of development over the next 2 days. This situation will be closely monitored for future updates as we receive them. With our area being right in middle of two upper level ridges, moisture will continue to pool into the area (PWATs ~2 inches). This will likely lead to some diurnally driven pop-up showers and thunderstorms mainly in the waters with a low to medium chance along the Coastal Bend and Victoria Crossroads. As this system enters the Gulf, hazardous marine and coastal conditions will likely develop beginning sometime late Monday going into Tuesday. With the influx of moisture, heat stress conditions are possible again Monday mainly in the Brush Country and portions of the southern Coastal Bend. Confidence in this reaching heat advisory criteria for more than 2 hours is low at this time however. A tropical funnel cloud or two could for again tomorrow morning. This would be due to conditions being similar to what they have been the previous few mornings. If they develop they are expected to be very brief and shouldn`t cause any damage. && .LONG TERM... (Tuesday through next Saturday) Issued at 430 PM CDT Sun Jun 16 2024 Key Messages: - Monitoring the Southwestern Gulf of Mexico for potential tropical development. - Increasing moisture leading to higher rain chances and potential for flooding and river flooding through the week. - Increasing risk of rip currents and coastal flooding. The National Hurricane Center continues to monitor an area of disturbed weather across the Yucatan Peninsula. There is a high 70% chance of a tropical depression or tropical storm developing across the southwestern Gulf of Mexico by mid week. It is still too early to know if any tropical systems will approach S TX at this time. Regardless, heavy rainfall with the potential for flash flooding is a major concern for S TX. Based on satellite, PWATs across a large portion of the central gulf are around 2 inches. Farther south, PWATs are around 2.6 inches. A moderate to strong east to southeast low level flow will help draw this moisture across S TX over the next several days. Models indicate PWATs ranging from 2-2.5 inches across S TX by late Monday into Tuesday. PWATs could reach 3 inches, per the GFS, by Wednesday across southern portions of S TX. A surface to mid level tropical wave/inverted trough is progged to approach the Texas coast from the east on Tuesday and track across TX Wed/Thu. The trough combined with the deep tropical moisture will lead to a high (up to 90%) chance of showers and thunderstorms Tue through Thu. Based on latest model solutions, the heaviest and most widespread rainfall with the potential for flash flooding looks to be Wed-Thu. Rivers and creeks may also flood. At this time, total rainfall amounts Monday through Friday are expected to range from 5 to 8 inches along and east of I37 and 3 to 6 inches west of I37. The Weather Prediction Center has a slight (15%-40%) risk of excessive rainfall across the Victoria Crossroads and along the Coastal Bend Tuesday. The slight risk of excessive rainfall covers all of S TX on Wednesday. By Thursday, the Rio Grande Plains has a slight risk with the remainder of S TX in a Marginal (5%) risk. By Thu/Fri, the trough is progged to be west of the area with rain chances decreasing to medium to high (40-60%) Friday and a low to medium (20-50%) chance over the weekend. The additional rain fall through the weekend, may continue to produce flooding impacts. There is also an increased risk of rip currents and coastal flooding through the week due to strong southeast to east winds expected across the gulf waters, especially if a tropical system does develop across the southwestern Gulf of Mexico and produces long period swells. The latest PETSS shows tide levels at Aransas Pass up to 2ft MSL (advisory conditions) by early Tue morning and approaching 3ft MSL (warning conditions) early Wed morning. There still remains uncertainty with timing and location of the heaviest rainfall and whether S TX will be impacted by a tropical system this week, so please continue to monitor the latest updates. && .AVIATION... (00Z TAFS) Issued at 606 PM CDT Sun Jun 16 2024 VFR conditions are expected to prevail through a majority of the TAF period. Brief MVFR conditions due to CIGs and/or VSBYs will be possible Monday morning generally between 08-13Z. Gusty winds this evening will relax overnight. Winds are expected to be a 2-5KT stronger Monday with gusts around 25-28KT by afternoon/evening. The chance of showers and thunderstorms will be increasing through the day Monday, mainly across the Coastal Bend with VCT and CRP having the best chance Monday. Brief MVFR/IFR conditions will be possible with the convection. && .MARINE... Issued at 430 PM CDT Sun Jun 16 2024 Weak to moderate onshore flow will increase to moderate this evening and persist through the day Monday. Strong onshore winds expected Tuesday with Small Craft Advisory conditions likely through Friday. Occasional gusts to gale force will be possible Wednesday. Wave heights are expected to increase to 8-13 feet across the coastal waters this week, especially if a tropical depression or tropical storm develops in the southwestern Gulf of Mexico. The National Hurricane Center has a high, 70% chance of development in the next 7 days. Regardless of tropical development, deep moisture will move into the area resulting in a 50-90% chance of showers and thunderstorms through the week. && .PRELIMINARY POINT TEMPS/POPS... Corpus Christi 80 93 79 91 / 10 40 30 60 Victoria 77 92 76 89 / 10 50 20 60 Laredo 78 101 78 98 / 0 0 0 20 Alice 77 97 77 93 / 0 20 20 60 Rockport 82 93 82 91 / 30 50 50 70 Cotulla 79 102 79 99 / 0 0 0 20 Kingsville 79 96 77 91 / 10 30 30 60 Navy Corpus 83 91 82 90 / 40 50 50 70 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && $$ SHORT TERM...NP LONG TERM....TE AVIATION...TE/81