317 FXUS64 KLIX 101120 AFDLIXArea Forecast Discussion National Weather Service New Orleans LA 620 AM CDT Fri Oct 10 2025
...New AVIATION...
.SHORT TERM... (Tonight through Sunday night) Issued at 1106 PM CDT Thu Oct 9 2025
A highly amplified pattern across the eastern CONUS will remain in place through the weekend as a very strong upper level trough dominates the eastern seaboard and a very strong deep layer ridge dominates the plains states. This will place the Gulf South in a persistent northerly flow regime through the weekend. Embedded within this northerly flow pattern, a northern stream shortwave trough and attendant cold front will slide through the region Friday morning. A cooler and even drier airmass will advect in behind this front, and this will lead to a very pleasant stretch of weather for the weekend. Low humidity, clear skies, and near average temperatures can be expected through Sunday. Highs will only warm into the low to mid 80s and overnight lows will plunge into the mid to upper 50s north of the I-10/12 corridor and the low to mid 60s south of I-10/12.
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.LONG TERM... (Monday through Thursday night) Issued at 1106 PM CDT Thu Oct 9 2025
The pattern will begin to shift as we move into the next workweek as the upper level trough over the eastern seaboard lifts to the northeast. This will allow the deep layer ridge over the plains to expand eastward and build across the Gulf South early next week. The ridge will then remain the dominant feature impacting the weather in the region through Thursday night. Strong subsidence will help to both warm temperatures and keep any rain chances at bay. In the low levels, a persistent northeast wind will also limit low level moisture advection off the Gulf, so dewpoints will remain in the 50s each afternoon. This will allow humidity values to fall into the 30 to 40 percent range each day. A weak reinforcing backdoor front sliding down from the northeast will also help to keep the drier air in place. With clear skies and dry air in place, a large diurnal range will take hold. Highs will once again run warmer than average with readings climbing into the mid to upper 80s each afternoon. However, strong radiational cooling overnight will allow lows to quickly drop into the 60s each night. Overall, a very benign run of weather will be in place through the end of next week.
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.AVIATION... (12Z TAFS) Issued at 618 AM CDT Fri Oct 10 2025
Winds out of the ENE at 10 to 15kt at times for all terminals, otherwise VFR will hold through this cycle.
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.MARINE... Issued at 1106 PM CDT Thu Oct 9 2025
An extended period of small craft advisory conditions will be in place across the waters through Saturday as a tight pressure gradient between a high to the northwest and a low to the southeast remains in place. North to northeast winds of 15 to 25 knots and seas of 5 to 8 feet in the Gulf waters will produce rough boating conditions. Conditions will gradually improve Saturday night as a surface high becomes more centered over the area. By Sunday and Monday, lighter winds of less than 10 knots will be in place beneath this high pressure system. Seas will also decrease to between 1 and 3 feet over this period. Tuesday will see a weak front slip through the waters as the high shifts back to the west, and northeast winds will increase to 10 to 15 knots for both Tuesday and Wednesday.
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.PRELIMINARY POINT TEMPS/POPS... MCB 83 57 82 57 / 0 0 0 0 BTR 85 61 84 60 / 0 0 0 0 ASD 85 59 85 56 / 0 0 0 0 MSY 83 67 82 67 / 0 0 0 0 GPT 85 62 85 61 / 0 0 0 0 PQL 85 59 85 56 / 0 0 0 0
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.LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...Small Craft Advisory until 10 AM CDT Saturday for GMZ530-532-534- 536-538-550-552-555-557-570-572-575-577.
MS...None. GM...Small Craft Advisory until 10 AM CDT Saturday for GMZ532-534-536- 538-550-552-555-557-570-572-575-577.
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SHORT TERM...PG LONG TERM....PG AVIATION...TE MARINE...PG
NWS LIX Office Area Forecast Discussion