Area Forecast Discussion
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
887 FXUS64 KLCH 222354 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 654 PM CDT Tue Sep 22 2026 ...New AVIATION... .KEY MESSAGES... -High temperatures continue to run 5-10 degrees above seasonal normals -Chance of a few showers and thunderstorms this afternoon along and south of the HWY90 corridor -A weak frontal boundary will move through the region Wednesday night and Thursday morning && .DISCUSSION... (This evening through next Monday) Issued at 1230 PM CDT Tue Sep 22 2026 High pressure is building back today which is causing temperatures to be 5-10 degrees above seasonal normals. This high pressure will limit rain chances today through the rest of the week. Despite the high pressure, CAM guidance is supportive of a few showers and thunderstorms this afternoon. This is due to a combination of above normal high temperatures and moisture overcoming any suppression the high has put in place. Any convection that does develop will dissipate shortly before or after sunset this evening. While temperatures remain above normal, there is some mild relief coming. Guidance continues to agree on a weak "dry" frontal boundary moving through the region Wednesday night into early Thursday morning. This dry frontal boundary will bring high temperatures "down" into the low to mid 90s along with low temperatures in the mid 60s to mid 70s Thursday through the weekend. Dewpoints will also drop into the 60s will bring both pleasant mornings and less oppressive afternoons and evenings. 86 && .AVIATION... (00Z TAFS) Issued at 654 PM CDT Tue Sep 22 2026 A few scattered showers or isolated thunderstorms will be possible near the fire location through sundown. Anything lingering after sundown will dissipate quickly. Winds near to any ongoing showers will be breezy and variable. Away from showers, northeasterly winds are expected. Rain chances will be lower on Wednesday as high pressure moves overhead. && .MARINE... Issued at 1230 PM CDT Tue Sep 22 2026 Low winds and seas will persist through Wednesday. A weak frontal boundary will move through the coastal waters late Wednesday into early Thursday turning winds offshore through the end of the week. The pressure gradient behind the frontal boundary will increase offshore winds to between 15 and 20 knots which will, in turn, raise seas to 2-3 feet. Winds and seas will fall again by Thursday evening. Small craft should exercise caution Thursday morning. && .FIRE WEATHER... Issued at 1230 PM CDT Tue Sep 22 2026 High pressure is set to migrate overhead through Wednesday keeping precipitation chances limited. A frontal boundary will push through the region Wednesday night into early Thursday with a slightly drier, continental airmass moving into the region in its wake. Minimum RH values will decrease to 30 to 40 percent each afternoon Thursday through the end of the week. && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$ PUBLIC/FIRE/MARINE...86 AVIATION...11