


Area Forecast Discussion
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
164 FXUS64 KLIX 092318 AFDLIX Area Forecast Discussion National Weather Service New Orleans LA 618 PM CDT Thu Oct 9 2025 ...New AVIATION... .SHORT TERM... (This evening through Friday night) Issued at 617 PM CDT Thu Oct 9 2025 An upper level ridge encompasses much of the center of the country with troughing on the east and western sides of it. The CWA is right between the center of that ridge axis and trough to the east. A shortwave embedded within the eastern trough will push southeastward into the far southeastern US near the Atlantic coast over the next couple days. This will bring a nice drop in temps and humidity to the region with lows and highs slightly below normal. Not a drop of rain during this timeframe which is nice for those who recently had 5-10" of rain but unfortunate for other portions of the local area that have been seeing much lower rain amounts recently. && .LONG TERM... (Saturday through Wednesday night) Issued at 617 PM CDT Thu Oct 9 2025 The forecast through this weekend is generally the same. An upper low rotating eastward around the northern periphery of the ridge will track southeastward across the Great Lakes. This will help keep the current shortwave near Florida in place while it deepens slightly. What that`ll do locally is maintain those fall-like temps and keep moisture levels down. Going into next week, we start to lose those cooler temps. Both upper lows situated to the east will shift into the western Atlantic. This will allow for the upper ridge axis centered between the Rockies and the Mississippi River Valley to move eastward, right over the CWA by mid week. In response to those increasing 500mb heights, temps will moderate around 3 to 5 degrees. That puts highs into the mid to maybe upper 80s. This overarching pattern will carry through the remainder of the week. && .AVIATION... (00Z TAFS) Issued at 617 PM CDT Thu Oct 9 2025 Northerly winds will continue to usher in a very dry and very stable airmass into the area. This will keep prevailing VFR conditions in place at all of the terminals. Winds will turn breezy from the north tonight at NEW and MSY as increased thermal mixing over the warmer lake waters allows for stronger winds aloft to transport down to the surface. North winds of 15 to 20 knots will develop by 06z and persist through the end of the forecast period at these terminals. && .MARINE... Issued at 617 PM CDT Thu Oct 9 2025 A cold front moved into the coastal waters last night and surface high pressure is quickly building in behind it. The pressure gradient will tighten across the coastal waters as weak persistent low pressure over the southeastern Gulf and large area of high pressure to the north and northeast dominate the region over the next few days. Winds have weakened a fair amount this morning in response to slight weakening in the pressure gradient as a shortwave moving southeastward through the parent upper level trough approaches the base of this feature. Wind will begin to increase once again this evening with strong northeast winds continuing through Saturday morning as the base of the trough digs farther southeast. Winds will generally be around 15 to 20 kts with frequent gusts abv 20 kts. An Exercise Caution headline was added to fill the gap between last night`s and tonight`s Small Craft Advisories. This upcoming SCY will continue through Saturday morning for all of the waters again. Winds will finally relax during the day Saturday as high pressure builds in more. && .PRELIMINARY POINT TEMPS/POPS... MCB 60 81 57 82 / 0 0 0 0 BTR 61 84 61 84 / 0 0 0 0 ASD 63 82 58 83 / 0 0 0 0 MSY 70 84 67 84 / 0 0 0 0 GPT 65 81 62 83 / 0 0 0 0 PQL 63 82 58 84 / 10 0 0 0 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...Small Craft Advisory from 10 PM this evening to 10 AM CDT Saturday for GMZ530-532-534-536-538-550-552-555-557-570-572- 575-577. MS...None. GM...Small Craft Advisory from 10 PM this evening to 10 AM CDT Saturday for GMZ532-534-536-538-550-552-555-557-570-572-575- 577. && $$ SHORT TERM...ME LONG TERM....ME AVIATION...PG MARINE...ME