Area Forecast Discussion
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
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041 FXUS64 KLCH 211751 AFDLCH Area Forecast Discussion National Weather Service Lake Charles LA 1251 PM CDT Tue May 21 2024 ...New AVIATION... .SHORT TERM... (Today through Thursday night) Issued at 214 AM CDT Tue May 21 2024 High pressure is along the East Coast while low pressure is moving into the central plains. This is producing an onshore flow that will persist through the short term. Aloft a ridge is extending from North Mexico across Texas and Louisiana. The pressure gradient will tighten somewhat between the ridge to the east and low pressure to the north. This will increase the south flow and keep the region humid. While the area of low pressure in the plains is expected to move across the Great Lakes region by the end of the short term, a trough will remain in the plains and mid-Mississippi Valley keeping winds somewhat elevated. The ridge aloft will continue to suppress convection keeping the area dry. Summer-like temperatures and humidity is anticipated with temperatures running above climo normals for the date. 05 && .LONG TERM... (Friday through Tuesday) Issued at 214 AM CDT Tue May 21 2024 Strong ridge of high pressure aloft is anchored across central Mexico with expansion into the region. This will keep us dry through early next week with daytime highs in the lower and middle 90s. Onshore flow will keep TDs up with daily heat indices in the upper 90s for late week/weekend and 100-107 by early next week. Uncertainty remains with a possible frontal passage by Tuesday of next week. Right now isolated showers/storms are in the forecast with continued heat/humidity. 78 && .AVIATION... (18Z TAFS) Issued at 1240 PM CDT Tue May 21 2024 Mostly MVFR to VFR CIGs to prevail for a majority of the period with an outside chance of upper end IFR CIGs overnight. Southerly winds that are currently elevated and gusty will taper down overnight, then strengthen again late tomorrow morning. Otherwise, we could see some patchy fog late tonight and into tomorrow morning. && .MARINE... Issued at 214 AM CDT Tue May 21 2024 Southeast flow is expected to prevail through the period. Winds and seas are forecast to increase today due to the pressure gradient increasing between surface high pressure to the east and low pressure across the Plains. All near climatology for this time of year. 08/05 && .PRELIMINARY POINT TEMPS/POPS... AEX 89 71 87 71 / 0 0 10 10 LCH 87 75 86 74 / 0 0 0 0 LFT 89 74 88 74 / 0 0 0 0 BPT 87 76 88 75 / 0 0 0 0 && .LCH WATCHES/WARNINGS/ADVISORIES... LA...None. TX...None. GM...None. && $$ SHORT TERM...05 LONG TERM....78 AVIATION...87