570 FXUS64 KLCH 060833 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 333 AM CDT Mon Sep 6 2021 .DISCUSSION... .SHORT TERM [Today through Wed Night]... Looking at surface obs this morning, the approaching cold front has moved across Central LA and is nearing the HWY 190 corridor at this time. Radar shows scattered showers and a couple thunderstorms moving south across the region in association with this front, while skies are partly cloudy elsewhere. The front will continue to push south through the CWA today, eventually stalling near the coast later today or tonight. With PWATs near 2.0 inches this morning, expect convection to gradually become more widespread through the next few hours. Guidance is in relatively good agreement with scattered to widespread convection firing up across inland areas through the morning hours, before spreading south into the coastal waters by the afternoon. Not expecting any severe weather today, but some slow moving storms could pose a threat for localized flash flooding. The flash flood threat may become a bit greater through the next couple of days, as the boundary looks to hang around near the coast through early Wednesday. With the front continuing to provide a focus for convection through the mid-week, expect several more rounds of scattered to widespread showers and thunderstorms, especially along and south of the I-10 corridor. Guidance is particularly wet for parts of Acadiana, where the risk for flash flooding may be greatest, especially across areas that see sustained and persistent rainfall. As the front becomes increasingly washed out on Wednesday, expect a slight decrease in rain chances. The typical chance of isolated to scattered afternoon showers still remains, but coverage should be less than today and tomorrow. 17 .LONG TERM [Thursday through Sunday]... A southward digging longwave trough over the Central and Eastern U.S. expected for Thursday and Friday, which should allow for a cool front to move through the area early Thursday. The front will likely trigger some showers and thunderstorms along the passage, mainly along and south of the I-10 corridor. Behind the front, precipitation chances expected to end with drier air across the region. This will limit precipitation chances to the coastal waters, and allow for slightly cooler mornings in the mid 60s for Central Louisiana/Inland Southeast Texas to near 70 along the coastal parishes/counties for Thursday through the weekend. Due to the drier air, highs will still reach the lower 90s, with mid 90s possible across Inland Southeast Texas. The slightly lower humidities should make it more tolerable. Expect a gradual humidifying trend as return flow resumes by Sunday afternoon. DML && .MARINE... Showers and thunderstorms will become more widespread later today as a frontal boundary move southward towards the coast. This front will stall across the region through the mid-week, keeping a daily chance for showers and thunderstorms in place. Winds will alternate between offshore and onshore through the first half of the week depending on the exact location of the boundary, while seas will run in the 1-2 foot range with isolated higher swells near thunderstorms. 17 && .PRELIMINARY POINT TEMPS/POPS... AEX 90 67 92 69 / 40 0 20 10 LCH 90 71 91 72 / 80 20 30 20 LFT 90 72 90 72 / 80 20 50 20 BPT 90 71 92 70 / 70 20 20 10 && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$