NO STORM WARNING. No storm warning is currently active for the forecast area.

A ROBUST SUBTROPICAL HIGH-PRESSURE RIDGE dominates the synoptic pattern, anchored by a 1022 hPa high near 25N 58W and a secondary 1026 hPa cell near 31N 30W. The steady pressure gradient maintains easterly to northeasterly trade winds across the Guianas marine domain. The ITCZ is displaced south of 05N, terminating near 04N 45W, keeping the main convective band well south of the shipping lanes. El Niño-induced vertical wind shear further suppresses organized convection over the equatorial Atlantic. A massive Saharan Air Layer (SAL) plume is transporting dust westward, capping convection north of 10N.

North of 10N: dry, stable, and hazy with Saharan dust; ESE winds 37–46 km/h, gusts to 56 km/h (Beaufort 5–6); visibility 4–8 km. South of 10N: partly to occasionally cloudy with scattered light to moderate showers and isolated thundershowers (active ITCZ); E winds 19–28 km/h; visibility 10+ km, dropping below 3 km in thundershowers. Nocturnal coastal thundershowers expected with high lightning density and squall gusts to 50 km/h.