Intracoastal City to Cameron, LA 20 - 60 NM Marine Forecast
| Today...West Winds Around 5 Knots. Seas 1 Foot Or Less. Wave Detail: South 1 Foot At 5 Seconds. |
| Tonight...Southwest Winds 5 To 10 Knots. Seas 1 Foot Or Less, Then Around 2 Feet After Midnight. Wave Detail: Southwest 1 Foot At 4 Seconds And Southeast 1 Foot At 8 Seconds, Becoming Southwest 1 Foot At 4 Seconds And Southeast 1 Foot At 9 Seconds. |
| Tuesday...West Winds 5 To 10 Knots. Seas Around 2 Feet In The Morning, Then 1 Foot Or Less. Wave Detail: Southwest 1 Foot At 3 Seconds And Southeast 1 Foot At 9 Seconds. |
| Tuesday Night...Southwest Winds 5 To 10 Knots. Seas 1 Foot Or Less, Then Around 2 Feet After Midnight. Wave Detail: Southwest 1 Foot At 3 Seconds And Southeast 1 Foot At 8 Seconds, Becoming Southwest 2 Feet At 3 Seconds And Southeast 1 Foot At 8 Seconds. |
| Wednesday...West Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southwest 2 Feet At 4 Seconds And Southeast 1 Foot At 7 Seconds. |
| Wednesday Night...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. Wave Detail: Southwest 2 Feet At 4 Seconds And Southeast 1 Foot At 7 Seconds. |
| Thursday...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. |
| Thursday Night...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. |
| Friday...West Winds 5 To 10 Knots. Seas Around 2 Feet. |
| Friday Night...Southwest Winds 5 To 10 Knots. Seas Around 2 Feet. A Slight Chance Of Showers And Thunderstorms After Midnight. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Lake Charles LA 236pm CDT Monday August 17 2026 ...NewARINE,Fire Weather .KEY MESSAGES... - A Heat Advisory is in effect until to 8PM this evening. Tuesday, another Heat Advisory has been issued for Acadiana between 12PM and 8PM. Highs in the mid 90s to 100°F and humidity will result in heat indices in the 105 to 111°F range. - An upper level ridge will remain in place across the northern gulf coast through the middle of this week keeping afternoon highs above normal. - No appreciable precipitation chances exist through the next seven days. (This evening through next Sunday) Issued at 230pm CDT Monday August 17 2026 Midday surface analysis depicts a high pressure system centered over the northern Gulf, resulting in light winds across the area generally out of the southwest. The large-scale upper level pattern is dominated by a sprawling 500 mb ridge over the southern tier of the CONUS. The 18z KLCH RAOB (Radiosonde Observation or Upper-Air Observation) measured a 500 mb height of 596 dam, which is 99th percentile compared to local climatology for mid- August, and also noted a subsidence inversion at 900 mb. This subsident environment has resulted in most of the area being devoid of any cloud cover at all. Some cumulus is noted along the sea breeze and over lower Acadiana, where overall moisture is greater, but would be surprised to see any more than a sprinkle of rainfall out of this. The main concern through the short term period will be the risk for potentially hazardous heat. Despite the near-record heights, heat concerns have been partially mitigated by dewpoints lowering with afternoon mixing, and that is expected to be the case for the next several days as well. That said, downward mixing of drier air will be less efficient further east, where deep layer moisture is greater. For this reason, a heat advisory has been issued for central and south-central Louisiana for tomorrow, where heat indices may reach up to 109-110 degrees. Confidence in reaching advisory criteria is lower for the remainder of the CWA, so these areas have been left out of the heat advisory for now. Evening shift will reassess for any changes to the heat headlines tonight with updated guidance. This pattern will persist through midweek, with ridging keeping temperatures hot with little to no chance of rainfall. Current thinking is that a general drying trend should keep heat indices below criteria after tomorrow, but confidence in the evolution of low-level moisture is low. Regardless of whether any heat headlines are in effect, heat safety practices are strongly recommended particularly for those who are more sensitive to high temperatures. After midweek, the upper level ridge will build over the Four Corners states while a trough digs southward into the Mississippi and Ohio Valleys, helping erode the ridge to our northeast. This will allow a few degrees of cooling, though it will still be hot, with afternoon highs looking generally in the low to mid 90s. This pattern shift would also allow isolated afternoon convection to make a return to the forecast area by the end of the week, with greater chances over the eastern portions of our area further removed from the upper-level ridge. 64/Silas Marine Issued at 230pm CDT Monday August 17 2026 Surface high pressure over the northwest Gulf will keep winds light out of the southwest through the forecast period, generally no more than 5-12 kt, with seas around 1-2 ft. High pressure aloft will keep rain chances near zero through much of the week. Some isolated shower activity may return by this weekend, with greater chances further east. Fire Weather Issued at 230pm CDT Monday August 17 2026 Hot conditions are expected across the CWA (County Warning Area) through the forecast period, with POPs nearly zero through midweek. Daily RH minimum values will range from 35 to 50 percent across the area this week. Surface high pressure over the northern Gulf will keep winds light out of the southwest through the period. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA... Heat Advisory until 8pm CDT this evening for LAZ027>033-044-045- 055-073-074-141>143-152>154-241>243-252>254. Heat Advisory from noon to 8pm CDT Tuesday for LAZ028-029-032- 033-044-045-055-143-152>154-243-252>254. TX... Heat Advisory until 8pm CDT this evening for TXZ180-201-259>262- 515-516-615-616. GM...None. |
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