SPI Monitor October 2017

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October 2017

For October, there was mixed rainfall in the islands of the eastern Caribbean. Rainfall totals for Trinidad ranged from normal in the west to exceptionally wet in the east. Tobago was slightly wet in the west to exceptionally wet in the east; Grenada moderately wet; Barbados moderate to extremely wet; St. Vincent normal to slightly wet; St. Lucia, Dominica and St. Kitts normal; Martinique normal to slightly dry; Guadeloupe normal in the west to moderately dry in the east; and Antigua slight to moderately dry. Apart from southwestern and northern extremes of Guyana, the Guianas generally experienced normal to moderately wet conditions. Aruba was slightly dry while Curacao was normal. Puerto Rico ranged from normal in the north to extremely wet in the south east. Conditions in Hispaniola ranged from normal in the southwest to moderately dry in the north and east. Jamaica ranged from normal in the west to moderately wet in the east, while Grand Cayman was moderately wet. Conditions in Cuba ranged from moderately dry to moderately wet, but northern Bahamas was normal to moderately wet. Belize ranged from slightly dry in western areas to exceptionally wet to the north and south.

August to October 2017

For the three month period, rainfall was normal to above normal in the eastern Caribbean. Trinidad was normal to exceptionally wet; Tobago moderately wet; Tobago, Grenada and St. Vincent moderately wet; St. Lucia, Martinique and Antigua normal; Dominica and Guadeloupe extreme to exceptionally wet; and St. Kitts very wet. The Guianas ranged from very wet to severely dry. Aruba was moderately dry but Curacao normal. Puerto Rico was extreme to exceptionally wet. Hispaniola ranged from slightly dry in the southwest to exceptionally wet in the north, but from moderately dry in the west to moderately wet in central areas. Grand Cayman was moderately wet. Conditions in western Cuba ranged from moderately wet to moderately dry, but from normal to exceptionally wet in the east. Northern Bahamas was normal, but Belize experienced conditions from severely dry in the west to extremely wet in the north and moderately wet to the south.

May to October 2017

Normal to above normal rainfall was experienced over the eastern Caribbean islands for the six month period. Trinidad was normal to extremely wet; Tobago, St. Lucia, Martinique and Antigua normal; Grenada and St. Kitts very wet; St. Vincent normal to slightly wet; Dominica moderate to very wet; and Guadeloupe extremely wet. Most of the Guianas was normal to exceptionally wet apart from the northern tip of Guyana. Aruba was slightly dry, but Curacao normal. Puerto Rico ranged from very wet in the west to exceptionally wet in the east. Conditions in Hispaniola ranged from moderately dry in the south west to moderately wet in the northeast, but from moderately dry to very wet in Jamaica. Grand Cayman was normal. In Cuba conditions ranged from slightly dry in west central Cuba to extremely wet in the west and southeast, but northern Bahamas ranged from slightly dry to slightly wet. Most of Belize was normal, but ranged to moderately wet in the north and south.

November 2016 to October 2017

Normal to above normal rainfall was experienced over the eastern Caribbean islands for the twelve month period. Trinidad ranged from normal in the west to exceptionally wet in the northeast; Tobago slight to moderately wet; Grenada very wet; Barbados exceptionally wet; St. Vincent extremely wet; St. Lucia normal to very wet; Martinique normal to slightly wet; Dominica moderate to exceptionally wet; Guadeloupe very to exceptionally wet; Antigua slightly wet; and St. Kitts moderate to very wet. Conditions in the Guianas ranged from moderate to exceptionally wet. Aruba was normal but Curacao moderately wet. Puerto Rico was predominantly exceptionally wet. Conditions in Hispaniola ranged from moderately dry in the southwest to exceptionally wet in the northeast, but in Jamaica was from slightly dry in the west to very wet in central areas. Grand Cayman was moderately dry. Western Cuba ranged from very wet to moderately dry, while eastern Cuba was from normal to moderately wet. Northern Bahamas ranged from normal to extremely dry. Belize was predominantly normal.

November 2015 to October 2017

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 September 2017

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September 2017

Normal to above normal rainfall was experienced over the islands of the eastern Caribbean for September 2017. Trinidad, Tobago, St. Vincent, and St. Lucia were normal; Grenada slightly wet; Barbados very to extremely wet from south to north; Martinique slight to moderately wet; Dominica and Guadeloupe exceptionally wet; Antigua moderately wet; and St. Kitts very wet. Conditions in the Guianas ranged from moderately dry in the north to extremely wet in southern Suriname and western Guyana. Aruba and Curacao were normal. Conditions in Hispaniola ranged from slight to moderately dry in southern Haiti to exceptionally wet in most of the Dominican Republic; while Jamaica ranged from extremely wet in central areas to severely dry in the west. Grand Cayman was normal. Western Cuba was slightly dry to slightly wet, and eastern areas normal to exceptionally wet. Belize ranged from exceptionally dry in central areas to moderately dry in the south and moderately wet in the north.

July to September 2017

Apart from Trinidad that was slightly wet to moderately dry, the islands of the eastern Caribbean experienced normal to above normal rainfall for the three month period. Tobago, Grenada, St. Vincent, St. Lucia and Martinique were normal; Barbados and Dominica moderate to extremely wet; Guadeloupe extreme to exceptionally wet; Antigua slightly wet; and St. Kitts very wet. Conditions in the Guianas ranged from moderately dry to exceptionally wet in central areas of Guyana to the west into western Suriname. Both Aruba and Curacao were normal. Conditions in Hispaniola ranged from normal in the southwest to exceptionally wet northern Dominican Republic; while Jamaica was moderately wet in central areas to extremely dry in the west. Grand Cayman was normal. Western Cuba was slightly dry to slightly wet, and eastern areas normal to exceptionally wet. In Belize, conditions ranged from exceptionally dry in central areas to normal to the north and south.

 

April to September 2017

For the six month period, apart from Tobago that was normal to moderately dry, the eastern Caribbean islands had normal to above normal rainfall. Trinidad was normal to moderately wet; Grenada, Barbados and Antigua moderately wet; St. Vincent slight to moderately wet; St. Lucia and Martinique normal; Dominica moderate to exceptionally wet; Guadeloupe exceptionally wet; and St. Kitts extremely wet. Conditions in the Guianas ranged from moderately dry in the north of Guyana to exceptionally wet in northwest Guyana into northwestern Suriname. Aruba and Curacao were normal. Conditions in Hispaniola ranged from moderately dry in the southwest to very wet in northern Dominican Republic; while Jamaica was exceptionally wet in central areas to moderately dry in the west. Grand Cayman was moderately dry. Cuba ranged from normal in central areas to extremely wet in the west and exceptionally wet in the southeast. Belize was normal to moderately dry.

 

October 2016 to September 2017

Apart from Trinidad that was moderately dry to moderately wet, rainfall for the twelve month period in the islands of the eastern Caribbean was normal to above normal. Tobago and Antigua were normal; Grenada slightly wet; Barbados extreme to exceptionally wet; St. Vincent extremely wet; St. Lucia from normal in the north to extremely wet in the south; Martinique normal to slightly wet; Dominica exceptionally wet; Guadeloupe extreme to exceptionally wet; and St. Kitts moderately wet. Conditions in the Guianas ranged from moderately dry in northern Guyana to exceptionally wet in central Suriname. Aruba was normal but Curacao slightly wet. Conditions in Hispaniola ranged from normal in the southwest to exceptionally wet in northern Dominican Republic; while Jamaica was from very wet in central areas to moderately dry in the west. Grand Cayman was exceptionally dry. In Cuba, conditions were from moderately dry in central regions to very wet in the west and exceptionally wet in the east. Belize was normal in the south to moderately dry in the north.

October 2015 to September 2017

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.

 

SPEI August 2017

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SPI Monitor August 2017

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August 2017

Normal to above normal rainfall was experienced in the islands of the eastern Caribbean during August. Trinidad was predominantly normal, with northern areas being slight to moderately wet; Tobago normal to extremely wet; Grenada, St. Kitts and Anguilla slightly wet; Barbados normal in the west to very wet in the southeast; St. Vincent, St. Croix and St. Thomas moderately wet; St. Lucia normal in the north to slightly wet in the south; Martinique and Antigua normal; and Dominica normal to very wet. Conditions in the Guianas ranged from exceptionally dry in French Guiana to moderately wet in southern Guyana and southwest Suriname. Aruba was slightly dry while Curacao was normal. Conditions in Puerto Rico ranged from slightly dry in the west to extremely wet in the southeast. Hispaniola was predominantly normal, apart from in the extreme west of Haiti that was slightly wet and the extreme east of the Dominican Republic that was slight to moderately dry. Apart from the extreme west that was slight to moderately dry, Jamaica was also predominantly normal, and Grand Cayman was normal. Conditions in Cuba ranged from slightly dry in the northwest to moderately wet in the east. Belize was normal in the south and slightly dry in the north.

June to August 2017

 

For the three month period, normal to above normal rainfall dominated the eastern Caribbean islands. Trinidad ranged from normal to extremely wet; Tobago, Martinique, Antigua and St. Croix normal; Grenada moderately wet; Barbados slight to moderately wet; St. Vincent, Anguilla and St. Thomas slightly wet; St. Lucia normal to slightly wet; Dominica normal in the southwest to moderately wet in the northeast; and St. Kitts very wet. Conditions in the Guianas ranged from exceptionally dry in northern Guyana and French Guiana to exceptionally wet in east central Guyana. Aruba and Curacao were normal. Conditions in Puerto Rico ranged from extremely wet in the west to moderately wet in the east; while Hispaniola was predominantly normal apart from eastern Dominican Republic that was slight to moderately dry. Conditions in Jamaica ranged from severely dry in the west to moderately wet in central areas; while Grand Cayman was moderately dry. Cuba ranged from normal in central and eastern areas to moderately wet in the west and southeast. Conditions in Belize ranged from normal in eastern and central areas to moderately wet in the north.

March to August 2017

Rainfall in the islands of the eastern Caribbean for the six month period was normal to above normal. Trinidad was normal to moderately wet; Tobago, Barbados, St. Lucia, Martinique and Antigua normal; Grenada, St. Vincent, St. Kitts and St. Thomas moderately wet; Dominica slight to moderately wet; and St. Croix very wet. Conditions in the Guianas ranged from exceptionally wet in eastern Guyana and northwestern Suriname to moderately dry in northern Guyana. Aruba and Curacao were normal, while Puerto Rico was moderately wet. Apart from some southern areas, that were slightly dry, Hispaniola was predominantly normal. Conditions in Jamaica ranged from extremely wet in central areas to normal in western portions; but Grand Cayman was moderately dry. Conditions in Cuba ranged from slightly dry to extremely wet; while Belize was predominantly normal apart from the extreme north that was slightly wet.

September to August 2017

 

Apart from Trinidad that was moderately dry to slightly wet, the islands of the eastern Caribbean experienced normal to above normal totals over the twelve month period. Tobago, Grenada, Antigua and St. Kitts were normal; Barbados very wet; St. Vincent extremely to exceptionally wet; St. Lucia normal in the north to exceptionally wet in the south; Martinique, Anguilla and St. Thomas slightly wet; Dominica slight to extremely wet; and St. Croix moderately wet. Conditions in the Guianas ranged from exceptionally wet to moderately dry. Aruba was slightly wet and Curacao moderately wet. Conditions in Puerto Rico ranged from normal in the west to extremely wet in the east; while in Hispaniola they ranged from normal in the south to exceptionally wet in northern Dominican Republic. Conditions in Jamaica ranged from moderately wet in central areas to normal in the east and west; but Grand Cayman was exceptionally dry. Conditions in Cuba ranged from moderately dry in central areas to exceptionally wet in the east; but Belize was predominantly normal apart from the north that was slightly dry.

September 2015 to August 2017

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 July 2017

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July 2017

Conditions were predominantly normal to below in the islands of the eastern Caribbean. Conditions in Trinidad ranged from slightly wet in the north to extremely dry in the south; Tobago from severely dry in the west to normal in the east; Grenada, St. Kitts and St. Maarten normal; Barbados slight to moderately dry; St Vincent, Martinique and Antigua moderately dry; St. Lucia from normal in the north to moderately dry in the south; Dominica normal to severely dry; Anguilla slightly wet; St Croix extremely dry; and St. Thomas moderately wet. Conditions in the Guianas ranged from exceptionally dry to exceptionally wet. Aruba was slightly wet while Curacao was normal. Conditions in Puerto Rico ranged from normal in the south to moderately wet in the north. Conditions in Hispaniola ranged from moderately wet in the regions around the Haiti-Dominican Republic border, to extremely dry in the east and normal to slightly dry in the west. In Jamaica conditions ranged from normal in the west to severely dry in the east, while Cuba was predominantly normal. Conditions in Belize ranged from slightly dry to slightly wet.

May to July 2017

For the three month period, normal to above normal rainfall predominated the eastern Caribbean islands. Trinidad was normal in the south to moderately dry in the north; Tobago slight to moderately dry; Grenada, St. Kitts and Anguilla moderately wet; Barbados, St. Vincent, St. Lucia, Martinique, Antigua, St. Thomas normal;   St. Maarten slightly wet; and St. Croix slightly dry. Conditions in the Guianas ranged from exceptionally dry to exceptionally wet. Aruba was slightly wet, but Curacao normal. Conditions in Puerto Rico ranged from moderately wet in the west to normal in the east; while Hispaniola ranged from normal in the south west to extremely dry in the south east. In Jamaica, conditions ranged from extremely wet in central areas to normal to the east and west. Cuba was predominantly normal but slight to moderately wet conditions were experienced in parts of the west and southeast. Central Belize was normal but conditions ranged to moderately wet to the north and south.

February to July 2017

Apart from Tobago that was normal to moderately dry, normal to above normal rainfall predominated the islands of the eastern Caribbean over the six month period. Trinidad was normal in the south and slightly wet in the north; Grenada, Dominica, Anguilla, St. Maarten and St. Thomas slightly wet; Barbados, St. Vincent, St. Lucia and Antigua; and St. Croix very wet. Conditions in the Guianas ranged from moderate to exceptionally wet. Aruba and Curacao were normal; while conditions in Puerto Rico ranged from extremely wet in the northwest to normal in the east. Hispaniola was predominantly normal apart from portions of the southeast that were slightly dry. Conditions in Jamaica ranged from extremely wet in central areas to slightly wet to the east and west. Most of Cuba was normal apart from portions of the west and southeast where rainfall totals were above normal and in north central areas that were slightly dry. Conditions in Belize ranged from slightly dry in the west to slightly wet in the north.

August 2016 to July 2017

Mixed conditions were experienced in the islands of the eastern Caribbean for the twelve month period. Trinidad ranged from normal to moderately dry; Tobago slight to moderately dry; Barbados moderately wet; St. Vincent exceptionally wet; Grenada, St. Kitts, Anguilla and St. Maarten normal; St. Lucia from normal in the north to exceptionally wet in the south; Dominica normal to slightly wet; Antigua, and St. Croix and St. Thomas slightly wet. Conditions in the Guianas ranged from moderately dry to exceptionally wet. Aruba and Curacao were slightly wet; but conditions in Puerto Rico ranged from normal in the south to very wet in the north. Conditions in Hispaniola ranged from moderately dry in the south to exceptionally wet in the north, while in Jamaica they ranged from very wet in central areas to normal in the east and west. Central Cuba ranged from normal to moderately dry, while to the east and west rainfall totals were above normal.

August 2015 to July 2017

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.