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Area Forecast Discussion
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
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967 FXUS64 KLIX 171917 AFDLIX Area Forecast Discussion National Weather Service New Orleans LA 217 PM CDT Wed Jul 17 2024 ...New SHORT TERM, LONG TERM, AVIATION, MARINE... .SHORT TERM... (This evening through Thursday night) Issued at 216 PM CDT Wed Jul 17 2024 Tonight through Saturday morning... A shortwave boundary is expected to move through the area and linger through the weekend, enhancing rain chances for the area. Looking at models, these storms will off and on Thursday through the weekend, but especially will be firing up convection during the peak afternoon heating hours. These storms will be highly efficient as PW value are around 2.2-2.4 inches for the next few days, which is well above the SPC sounding climatology. And with plenty of moisture to work with throughout the atmospheric column and models indicating the potential for training/slow-moving storms, flash flooding will be the primary concern with these storms. Lightning and gusty winds (30- 50mph) will also be hazards and a severe storm will be possible through the weekend. As a result of increase PoPs, the heat concerns will decrease for a while. Highs through the weekend will be in the upper 80s. MSW && .LONG TERM... (Friday through Tuesday night) Issued at 216 PM CDT Wed Jul 17 2024 As the boundary lifts over our area Sunday into Monday, an easterly wave will influence the Gulf of Mexico, again enhancing rain chances for our area for the beginning of next week. Once again, rain will be quite efficient given the abundant tropical moisture associated with the easterly wave moving into the area. PW values look high and PoPs will be enhanced. As this rainfall will be efficient and somewhat slow moving in recent model trends, we will need to monitor for potential flash flooding concerns next week as well. The enhanced rainfall next week will keep temperatures near normal, so heat concerns will not be an issue for next week for the most part. MSW && .AVIATION... (18Z TAFS) Issued at 216 PM CDT Wed Jul 17 2024 VFR conditions prevail for all area airports and will persist through the forecast period. TEMPO groups are forecast for most area airports for lower ceilings and visibilities and MVFR conditions for this afternoon and early evening. Wind gusts greater than 30 degrees will be possible throughout the forecast period at all area airports. MSW && .MARINE... Issued at 216 PM CDT Wed Jul 17 2024 A benign weather pattern will be setting up over the area for the next week. Southerly and moderate (10-15kts) will be in place for the next week. Daily showers and storms will be possible with lightning and brief, gusty winds (30-40mph), which could be a hazard for mariners. MSW && .PRELIMINARY POINT TEMPS/POPS... MCB 73 91 71 85 / 30 90 70 90 BTR 78 93 76 90 / 40 90 60 90 ASD 77 93 75 88 / 30 90 70 100 MSY 78 91 78 88 / 60 90 60 100 GPT 77 91 76 88 / 30 80 80 100 PQL 77 93 76 91 / 30 80 80 90 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...Heat Advisory until 7 PM CDT this evening for LAZ034>037-039- 046>048-056>060-064-065-071-076>090. GM...None. MS...Heat Advisory until 7 PM CDT this evening for MSZ068>071-077- 083>088. GM...None. && $$ SHORT TERM...MSW LONG TERM....MSW AVIATION...MSW MARINE...MSW