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

A weak 1017-1018 hPa Atlantic subtropical ridge is gradually shifting northeastward and strengthening, maintaining only a weak pressure gradient across the regional waters with moderate or weaker trade winds and moderate seas. Per the Marine Watch Suriname synoptic analysis (GFS 0.25°, valid 1800 UTC 7 Sep 2026), the ITCZ along the 55W Paramaribo meridian is positioned NORTH of Suriname, between 6.4N (GFS/MetPy convergence maximum) and 7.8N (NHC TWD axis) — about 1.8 degrees of latitude above the coast; the NHC TWD ITCZ axis runs from near 8N58W to 7N40W, while the GFS/MetPy convergence estimate dips further south and coastward, from about 14N65W through 9N58W to a minimum of 6N50W near the coast before lifting back north beyond 40W. A tropical wave axis (NHC TWD) is analyzed near 47W, in close proximity to the ITCZ axis, moving west within the moisture envelope of the convergence zone; a monsoon trough (NHC TWD) extends northeastward from near 7N40W all the way to about 20N15W. Elevated precipitable water (55-65 mm) is analyzed near and northeast of the ITCZ axis around 40-50W and over parts of the Caribbean, consistent with the enhanced convective potential along and just north of the coast. Weak low-pressure centers (1006-1010 hPa) are analyzed along the South American coast and Caribbean, with higher pressure (1018-1022 hPa) over the subtropical Atlantic to the northeast. No tropical cyclone development is expected across the basin during the next 7 days per the NHC Tropical Weather Outlook. No significant Saharan Air Layer intrusion is analyzed over the immediate forecast area at this time; background visibility is governed chiefly by shower and thunderstorm activity along the ITCZ/monsoon trough, the 47W tropical wave, and the 52W wave axis rather than by dust.

Between 1200UTC September 8, 2026 and 1200UTC September 9, 2026 North of 08N: ENE to E trade winds, moderate (Bft 3-4) under the weakening pressure gradient south of the retreating Atlantic ridge, with a moderate chance of scattered showers and thunderstorms between 05N and 08N along the ITCZ/monsoon trough and near the 52W tropical wave axis, producing brief squally gusts (locally Bft 6) in the more organized cells. North of 12N conditions remain more settled with mainly isolated showers in modest trade-wind flow. South of 08N (coastal waters): ENE to E by day with a sea-breeze veer near the coast by mid-afternoon; partly cloudy with a moderate risk of afternoon thunderstorms along the coastal sea-breeze front given the ITCZ lying directly at the coast, becoming ESE to E overnight as convective activity tends to increase along the coast.