Calcasieu Lake Marine Forecast
| Today...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Tonight...Southwest Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Monday...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Monday Night...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Tuesday...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Tuesday Night...Southwest Winds Around 10 Knots. Lake Waters Light Chop. |
| Wednesday...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Wednesday Night...West Winds 5 To 10 Knots. Lake Waters Light Chop. |
| Thursday...Northwest Winds 5 To 10 Knots, Becoming West In The Afternoon. Lake Waters Light Chop. A Slight Chance Of Showers And Thunderstorms In The Afternoon. |
| Thursday Night...West Winds 5 To 10 Knots. Lake Waters Light Chop. A Slight Chance Of Showers And Thunderstorms After Midnight. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Lake Charles LA 103pm CDT Sunday July 19 2026 ...NewARINE,Fire Weather .KEY MESSAGES... - Tropical Depression Two has formed over the northeast Gulf. This system will move to the northwest or west during the upcoming week. - High pressure will meander over the NW Gulf through Monday before strengthening further this week. Afternoon highs will increase by a degree or two each day, hitting the upper 90s to 100 degrees by midweek. Heat indices will range from 105 to 112+F this week. - Heat advisories are in effect for this afternoon and Monday afternoon for eastern portions of the forecast area. Additional heat advisories will likely be issued Tuesday and/or Wednesday. (This evening through next Saturday) Issued at 1255pm CDT Sunday July 19 2026 The large-scale picture across the CONUS is dominated by a strong 500mb ridge centered over the Rockies and central Plains, as seen in water vapor satellite imagery, with ridging extending to the southeast over our CWA. At the surface, high pressure centered over the northwestern Gulf is driving light westerly to southwesterly winds for our area. Deep layer moisture remains below average, with GOES derived PWAT (Precipitable Water) in the 1.3-1.7 inch range (10th to 25th percentile). Looking into the Gulf, the disturbance in the northeast Gulf has now been designated Tropical Depression Two (more on that below). The main impact in the short term period will be heat associated with the ridge, which will expand and strengthen over the next few days. The main factor that has kept heat index values from becoming too extreme so far has been the presence of drier air just off the surface, which has been able to mix down enough to keep afternoon dewpoints in the low 70s and thus keep heat indices down. However, the strengthening ridge will result in a warming trend that will start to bring us to those more dangerous heat index levels, particularly for our inland parishes where temperatures will be highest. A heat advisory has been issued for today for our northeasternmost parishes, where the best overlap of high temperatures and low-level moisture is expected. Heat index values are expected to reach up to 108 in these areas. Another heat advisory has been issued for tomorrow for the eastern half of the CWA (County Warning Area) for heat index values up to 110, and this advisory may need to be expanded in future forecast cycles. Rain chances look to be near zero for the entire CWA through this period with the ridge and drier air firmly in place. Tuesday and especially Wednesday will be even hotter as the ridge continues to strengthen, with NBM probabilities of 100+ high temps in the 40-60 percent range for most areas north of US 190. Recent guidance has also trended upwards with dewpoints across the area during this time frame. As a result, further heat advisories will likely be required for most of the CWA, with northern areas potentially knocking on the door of extreme heat warning criteria. As the ridge expands eastward, it will open the door for some moisture to work its way back into our area. The result will be the return of some isolated convection to mainly lower Acadiana starting Tuesday. Now for the elephant in the room: the just-designated Tropical Depression Two currently situated over the northeast Gulf. Latest guidance from the National Hurricane Center shows some slow strengthening of this system as it moves to the northwest, followed by a turn to the west influenced by the upper-level ridge. Significant uncertainty exists in both track and intensity of the system, but it does now appear there is at least some potential for tropical storm impacts in our CWA, particularly eastern and/or coastal areas, as early as Wednesday into Thursday. Stay tuned to future forecasts for the latest updates as this system evolves over the next few days. 64/Silas Marine Issued at 1255pm CDT Sunday July 19 2026 Surface high pressure over the western Gulf will bring westerly winds to the coastal waters through the first half of the week, along with low rain chances. Initially light winds will trend breezier tonight into tomorrow, particularly for our eastern waters where speeds may reach 15-20 kt. Expect generally 15-20 kt winds and 2-4 ft seas heading into midweek, with perhaps a few isolated showers over the far eastern waters after Monday. Attention then turns to the tropical system that will likely be approaching the area from the east around Wednesday. While significant uncertainty remains in the track and intensity of this system, guidance is starting to point towards the potential for tropical storm conditions to occur over the coastal waters Wednesday into Thursday. Fire Weather Issued at 1255pm CDT Sunday July 19 2026 Light winds and hot temperatures predominate over the area through midweek. Minimum RH values will be around 35 to 55 percent each day through Tuesday, lowest in central LA and inland southeast TX. Rain chances gradually increase from the southeast starting Tuesday as moisture begins to increase over the area. NOAA Lake Charles LA Office: Watches - Warnings - Advisories LA... Heat Advisory until 7pm CDT this evening for LAZ028-029-032-033. Heat Advisory from 11am to 7pm CDT Monday for LAZ028-029-032- 033-044-045-055-143-152>154-243-252>254. TX...None. GM...None. |
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