Most of the shower activity today occurred across the Leewards and northern Windwards, but few scattered showers are anticipated across our islands overnight into Saturday as a surface to low level shearline trails the wave. (see image at 5pm compliments RAMMB)
The High Pressure System should rebuild during Saturday, but a mid-level trough across our area Sunday should result in only isolated showers due to possible pockets of dry air.
Gentle breeze overnight could vary from east north-east to east south-east, increasing to moderate by early morning. A more easterly direction is expected Saturday morning, increasing to fresh by afternoon.
Barometric Pressure could range 1015 - 1018 mb until Saturday falling by Monday to range 1014 - 1016 mb.
Expect slight seas in open water, with swells on west coasts less than 0.6 m appearing smooth overnight, while east coasts between 0.6 m and 1.2m. Gradual increase is expected from Saturday afternoon with swells peaking near 1.2m-on west coast and 1.8m on the east; increasing further by Sunday to peak near 1.8m on west and 2.2 m on east coasts.
Visibility could decrease overnight with a plume of dust approaching the islands. Occasional hazy conditions with varying intensity is expected over the weekend into early next week.
Note: An area of disturbed weather midway between Africa and the Lesser Antilles is being monitored. While strong upper-level winds are likely to limit development for the next couple days, the High Pressure System could be weakened around Monday by another low pressure area deepening in the Northern Atlantic. There is a 20% chance that the area of disturbed weather could gradually develop while slowly westward. Models project that the disturbance east of island chain could become an open wave by Tuesday before reaching the islands Wednesday/Thursday.