385 FXUS64 KLCH 072055 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 255 PM CST Sun Nov 7 2021 .SHORT TERM [Tonight through Tuesday]... After a foggy start across the area, a very pleasant warm and sunny day has followed, with temperatures climbing into the upper 60s to around 70 areawide with low humidity and light winds. This is all courtesy of a sprawling area of SFC high pressure stretching from the OH River Valley into the NW Gulf and deep northerly flow aloft between an ERN CONUS upper trof and a ridge of high pressure over TX. The clear sky and light winds tonight will yield excellent radiational cooling, which coupled with very low Td depressions should foster another round of fog formation late tonight into MON morning. There is some uncertainty regarding areal extent and magnitude, so for now will simply insert patchy to areas of fog into the grids and let subsequent shifts further evaluate the need for an advisory. The SFC high and ridging aloft are progged to slowly migrate to the east over the next couple of days, with another warm and sunny day on tap for tomorrow after any morning fog erodes. Highs in the lower to mid 70s are anticipated. Some light return flow is expected to be in place on MON as the ridge axis shifts east of the area, but MSTR return from the Gulf will be slow and relatively shallow, thus only a continued gradual moderation in low temperatures is forecast. Increasing clouds are expected on TUE as the ridging aloft flattens out with the approach and passage of a low amplitude upper trof. Most of this will be in the form of high cirrus, but at least some lower level clouds are also expected across SE TX where some semblance of Gulf MSTR will have returned. The increasing clouds will knock a bit off of forecast highs, though readings in the lower to mid 70s are still expected. 13 .LONG TERM [Wednesday through Sunday]... A system will move into the plains during the middle of the week as a ridge exits the east coast. This will increase moisture locally ahead of the cold front that will move into north Texas by Wednesday afternoon. Lift will increase into early Thursday ahead of the front with showers and isolated thunderstorms developing. The front may slow to a crawl as it enters the area Thursday afternoon while the short wave lifts out, however a secondary push will allow the boundary to exit the area Friday. A cooler and drier airmass will spill in for the weekend. 05 && .MARINE... Light easterly winds will continue into Tuesday as high pressure prevails over the northwest Gulf of Mexico. Tuesday night, a more prevalent onshore flow will commence as low pressure develops across the central Plains, becoming modest Wednesday and Thursday ahead of a cold front forecast to push through the coastal waters Thursday night. A modest to strong offshore flow will follow the frontal passage Friday and Friday night. 13 && .PRELIMINARY POINT TEMPS/POPS... AEX 38 73 43 74 / 0 0 0 0 LCH 45 72 48 73 / 0 0 0 0 LFT 45 75 48 76 / 0 0 0 0 BPT 48 73 50 73 / 0 0 0 0 && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$