SPI May 2015

SPI Monitor May 2015

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SPI Discussion May 2015

May 2015

Normal to below normal conditions persisted in the islands of the eastern Caribbean. Trinidad was normal to slightly dry; Tobago, Barbados, St. Vincent severely dry; St. Lucia, Dominica and St. Kitts extremely dry; Antigua and St. Maarten moderately dry; Anguilla normal and St. Croix slightly dry. Guyana was exceptionally wet in the west and extremely wet in the east. Aruba was severely dry, while Puerto Rico was predominantly moderately dry. Conditions in the Dominican Republic ranged from extremely dry in the west to normal in the east. Central portions of Jamaica were normal while the extreme west and east were slightly to severely dry. Grand Cayman was slightly dry. Though rainfall in Cuba was predominantly normal, western and southern areas were below normal. Conditions in Belize ranged from exceptionally dry in the south to normal in the north.

March to May 2015

SPI March to May 2015For the three month period, normal to below normal rainfall was experienced in the eastern Caribbean islands. Trinidad was slightly dry; Tobago, St. Kitts and Anguilla moderately dry; Grenada, Barbados, St. Vincent and St. Lucia normal; Dominica exceptionally dry; Antigua severely; St. Maarten extremely dry; and St. Croix severely dry. Guyana ranged from extremely wet in the west to slightly wet in the east. Aruba was normal, but Puerto Rico was moderately dry. The western half of the Dominican Republic were exceptionally dry to normal, while the eastern half was normal to severely dry. Apart from western and eastern extremes that were slight dry, Jamaica was normal, but Grand Cayman slightly dry. Western Cuba was slightly to severely dry, while the east was normal.

December 2014 to May 2015

SPI December 2014 to May 2015The islands of the eastern Caribbean experienced normal to below normal rainfall for the six month period. Trinidad, Tobago, Grenada, St. Vincent and St. Kitts were normal; Barbados, St. Lucia and Anguilla moderately dry; Dominica and St. Maarten exceptionally dry; Antigua severely dry; and St. Croix slightly dry. Conditions in Guyana ranged from very wet in the northwest normal in the east. Aruba and Puerto Rico were both normal. Conditions in the Dominica Republic ranged from exceptionally dry in the west to moderately wet in the east. Cuba was slightly dry in the west and normal in the east, while Grand Cayman was slightly dry. Belize ranged from exceptionally dry in the south to slightly wet in the north.

June 2014 to May 2015

SPI June 2014 to May 2015Rainfall was normal to below normal in the islands of the eastern Caribbean for the twelve month period. Trinidad was moderate to severely dry; Tobago, Grenada, Barbados and Anguilla normal; St. Vincent, St. Croix and St Maarten slightly dry; St. Lucia, Antigua and St. Kitts moderate dry. Conditions in Guyana ranged from extremely wet in the north to normal in the east. Aruba was slightly dry but Puerto Rico was normal. Normal to moderately dry conditions were experienced in the Dominica Republic, but the western half of Jamaica was normal, while the eastern half was normal to severely dry. Grand Cayman was moderately dry, but Cuba was slightly to severely dry. Conditions in Belize ranged from extremely dry in the south to normal in the north.

 

Disclaimer

The information contained herein is provided with the understanding that The Caribbean Institute for Meteorology and Hydrology makes no warranties, either expressed or implied, concerning the accuracy, completeness, reliability, or suitability of the Outlook. The information may be used freely by the public with appropriate acknowledgement of its source, but shall not be modified in content and then presented as original material.

The maps produced used SPI values calculated from monthly rainfall totals from land stations and NCEP/NCAR reanalysis data. Only land station data is used for the eastern Caribbean, described here as from Georgetown, Guyana in the south to Anguilla in the north. The Greater (and Western) Antilles is less represented by land stations. However efforts are being made to include more land stations from that part of the region. Note that the severity implied by the index is relative to what is normal for that period of consideration. Normal in the drier season reflects less rainfall than in the wetter season.

SPI Monitor April 2015

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SPI Discussion April 2015

April 2015

The eastern Caribbean and Guyana were normal to below normal apart from St. Vincent and St. Lucia that were moderately wet. Trinidad, Tobago and St. Kitts were normal; Grenada, Antigua and Anguilla moderately dry; Barbados normal to slightly dry; Dominica extremely dry; St. Maarten and St. Croix slightly dry; and Guyana normal in the west and slightly dry in the east. Aruba was normal while Puerto Rico was normal to slightly dry. The Dominican Republic was predominantly normal, but conditions in Jamaica ranged from normal in the west to extremely dry in the east. Grand Cayman was slightly dry. Conditions in Belize ranged from severely dry in the south to slightly wet in the north.

February to April 2015

SPI February to April 2015For the three month period, conditions were mixed over the eastern Caribbean and Guyana. Trinidad and St. Kitts were slightly dry; Tobago and Grenada normal; Barbados slightly wet; St. Vincent moderately wet; St. Lucia normal to slightly wet; Dominica and Antigua severe to extremely dry; Anguilla extremely dry; St. Maarten exceptionally dry; St. Croix moderately dry; and Guyana slightly wet in the north to normal further south. Aruba was normal and Puerto Rico normal to slightly dry. Conditions in the Dominican Republic ranged from slightly dry in the west to moderately wet in the east. Jamaica was slightly wet in the west and normal in the east, while Grand Cayman was normal. Conditions in Belize ranged from moderately dry in the south to normal in the north.

November 2014 to April 2015

SPI November to April 2015Apart from the central portions of the eastern chain that saw Dominica experiencing extremely dry conditions, the eastern Caribbean and Guyana experienced normal to above normal rainfall for the six month period. Trinidad, Barbados, St. Vincent and St. Croix were slightly wet; Tobago moderately wet; Grenada, St. Lucia, Antigua, St. Kitts, Anguilla and St. Maarten normal; and Guyana from moderately wet in the north to normal in the south. Aruba was normal while Puerto Rico was slightly wet. Apart from eastern portions of the county that were slightly wet, the Dominican Republic was normal. Conditions in Jamaica ranged from slightly wet in the west to slightly dry in the east, but Grand Cayman was moderately dry. Conditions in Belize ranged from moderately dry in the south to moderately wet in the north.

May 2014 to April 2015

SPI May 2014 to April 2015Normal to below normal conditions dominated the islands of the eastern Caribbean for the twelve month period. Trinidad was moderate to severely dry; Tobago, Grenada, Barbados, St. Kitts, Anguilla, St. Maarten and St. Croix normal; St. Vincent slightly dry; St. Lucia and Antigua moderately dry; and Dominica exceptionally dry. Conditions in Guyana ranged from very wet in the north to moderately dry in the east. Aruba was slightly dry, but Puerto Rico slightly wet. The Dominican Republic was slight to moderately dry in the west and normal in the east. Conditions in Jamaica ranged from slightly wet in the west to extremely dry in the east, while Grand Cayman was moderately dry. Conditions in Belize ranged from moderately dry in the south to slightly wet in the north.

 

Disclaimer

The information contained herein is provided with the understanding that The Caribbean Institute for Meteorology and Hydrology makes no warranties, either expressed or implied, concerning the accuracy, completeness, reliability, or suitability of the Outlook. The information may be used freely by the public with appropriate acknowledgement of its source, but shall not be modified in content and then presented as original material.

The maps produced used SPI values calculated from monthly rainfall totals from land stations and NCEP/NCAR reanalysis data. Only land station data is used for the eastern Caribbean, described here as from Georgetown, Guyana in the south to Anguilla in the north. The Greater (and Western) Antilles is less represented by land stations. However efforts are being made to include more land stations from that part of the region. Note that the severity implied by the index is relative to what is normal for that period of consideration. Normal in the drier season reflects less rainfall than in the wetter season.