SPI Discussion September 2015 September 2015 Normal to below normal rainfall was experienced over the eastern Caribbean and Guyana for the month. Trinidad and St. Maarten were exceptionally dry; Tobago, Barbados, St. Vincent and St. Lucia normal; Grenada and St. Kitts moderately dry; Dominica and St. Croix severely dry; Antigua slightly dry; Anguilla extremely dry; …