Area Forecast Discussion
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
743 FXUS64 KLCH 041906 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 206 PM CDT Fri Sep 4 2026 ...New DISCUSSION, AVIATION, MARINE, FIRE WEATHER... .KEY MESSAGES... - A disturbance along with an abundant amount of moisture will keep elevated rain chances in place through the weekend. - Some of these storms could lead to flash flooding, with a Marginal Risk for Excessive Rainfall in place both today and this weekend, areawide. - Ridging slowly builds overhead next week, allowing moisture return and rain chances to level off, while temperatures begin to increase into the mid to upper 90s. && .DISCUSSION... (This evening through next Thursday) Issued at 157 PM CDT Fri Sep 4 2026 Today will be the driest day weve had in a while in regard to PWATs, which are currently sitting just below the 90th percentile. PWATs will increase again this weekend before dropping once more heading into next week. Nevertheless, sufficient lingering moisture in combination with diurnal processes will allow for showers and thunderstorms this afternoon. Coverage will be isolated to scattered before tapering off during the early evening. A Marginal Risk for excessive rainfall encompasses nearly the entire CWA today through the weekend as a tropical wave moves westward across the Gulf Coast. By tomorrow, PWATs will rise sharply, approaching the daily maximum, as a moisture rich airmass moves directly over the CWA. This will be worth watching, as portions of the CWA, especially SETX, will remain sensitive following the previous rounds of heavy rainfall. The deeper plume of moisture will shift eastward Sunday, though a moisture rich airmass will remain in place across the Gulf Coast states heading into the upcoming work week. This will support our continued run of the mill daily diurnal showers and thunderstorms. Aloft, a ridge will build across the Southern to Central Plains, while a stubborn weakness aloft remains in place over the Gulf. The strengthening ridge should suppress shower and thunderstorm coverage across the northern half of the CWA while allowing temperatures to trend slightly higher during the work week. High temperatures in the upper 90s combined with high humidity will result in apparent temperatures approaching Heat Advisory criteria, which will need to be monitored as well. Nevertheless, heat may become more of a hazard than hydro heading into next week. && .AVIATION... (18Z TAFS) Issued at 157 PM CDT Fri Sep 4 2026 Isolated showers and storms ongoing across the area this afternoon, with this activity expected to taper going into the early evening hours. once this tapers, VFR conditions expected to prevail until chances of it dropping with tomorrows convection. && .MARINE... Issued at 157 PM CDT Fri Sep 4 2026 Light mainly SE to S winds and low seas will prevail through the end of the week and into the weekend. Scattered convection will continue to be possible each day as well, as a steady stream of moisture moves over the region. && .FIRE WEATHER... Issued at 157 PM CDT Fri Sep 4 2026 More rounds of showers and storms are expected through the weekend, some heavy at times, as moisture continue to pool overhead. MinRH values will range from the 50 to 70% range each day. && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$ PUBLIC/FIRE/MARINE...87 AVIATION...87