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Barbados Meteorological Services
Charnocks ChCh
Weather Discussion
http://www.BarbadosWeather.org
Initial to 4 days discussion based on Satellite imagery,BMS Radar composite,S.P.I.E products,GEM, GFS, WW3, UKMET and BMS WRF modeling, surface and upper air observations, Satellite derived products.
DATE: 20210420 PERIOD: Morning

Eastern Caribbean

LA SOUFRIERE Volcano in St. Vincent remained active however, no explosive eruptions occurred during the night.

The first in a series of surface to low level pertubations began affecting the region during the later portion of the night. However the mid to upper-levels remained dry and stable and a few cloud patches generated some scattered light to moderate showers, mainly over the Windwards.

Further south over the twin island republic of Trinidad and Tobago the Atlantic high-pressure system remained the dominant feature and conditions were mostly fair.
Across the Guianas, the Atlantic high pressure system also remained dominant and conditions were fair to occasionally cloudy across much of the region. However, cloudy skies with scattered showers and periods of rain were experienced over parts of French Guiana.

Winds across the region were light to breezy with speeds peaking around 22 knots here in Barbados. Seas were slight to moderate in open water with swells peaking between 1.5m and 2.0m.
Western Caribbean

A frontal boundary continued to affect the northern Bahamas generating cloudy skies along with showers and isolated thunderstorms. Conditions improved over Cuba during the early part of the night. Elsewhere, the Atlantic high-pressure system remained the dominant feature and conditions were mostly fair.
Eastern Caribbean Outlook

LA SOUFRIERE Volcano, St. Vincent is very much active and the threat of explosive volcanic eruptions is still expected to continue during the next few days. St. Vincent remains on red alert and visibility will likely fluctuate due to the extensive volcanic ash currently on the ground. As for Barbados, bulletins regarding ash plumes could be issued at short notice and the general public is urged to continue monitoring official sources for updates.

Today: A series of westward moving surface to low level pertubations will affect the region. However, the mid to upper levels are expected to remain relatively dry and conditions will likely be occasionally cloudy along with brief scattered light showers.

Barbados forecast Max/Min Temps: 30/24.

Wednesday: The aforementioned series of pertubations will continue to affect the region and no significant change in weather conditions is anticipated.

Barbados forecast Max/Min Temps: 30/24.

Thursday: The aforementioned series of pertubations will continue to affect the region and no significant change is anticipated.

Barbados forecast Max/Min Temps: 30/24.

Friday: As the aforementioned series of pertubations will move westward out of the region and conditions are expected to improve as the day progresses.

Barbados forecast Max/Min Temps: 30/25.
Western Caribbean Outlook

Today: The aforementioned frontal boundary will move eastward away from the northern Bahamas before another frontal boundary begins affecting the same area later in the day. The northern Bahamas will likely see a short lived improvement during the day then for conditions to become partly cloudy to cloudy with showers. A series of westward moving surface to low level pertubations will be approaching Puerto Rico and the Virgin islands. Elsewhere, the Atlantic high-pressure system will remain the dominant feature and conditions are expected to be fair to partly cloudy with brief isolated showers.

Wednesday: Current guidance suggest the frontal boundary will continue affecting the northern Bahamas generating cloudy skies along with showers. The aforementioned series of pertubations will begin affecting Puerto Rico and the Virgin islands triggering some occasional cloudiness and scattered showers. Elsewhere, no significant change is anticipated as the Atlantic high-pressure system will remain dominant.

Thursday: Conditions are expected to improve over the northern Bahamas during the day as the frontal boundary begins moving south-eastward. The aforementioned series of pertubations will begin affecting Hispaniola triggering occasional cloudiness and scattered showers. Elsewhere, no significant change is anticipated.

Friday: The frontal boundary will likely weaken into a shear line and continue moving south-eastwards. Elsewhere the aforementioned series of pertubations will trigger occasional cloudiness and scattered showers across the Greater Antilles.
Meteorologist Cherise Brathwaite