SPI Monitor February 2018

February 2018

Mixed conditions were experienced in the islands of the eastern Caribbean for the month of February. Trinidad was slightly dry to slightly wet; Tobago and St. Lucia slight to moderately wet; Grenada extremely wet; Barbados very wet; St. Vincent and St. Maarten slightly wet; Martinique normal to very wet; normal to exceptionally wet from northeast to southwest; Guadeloupe slightly dry to slightly wet; Antigua slightly dry; and St. Kitts moderately dry. In the Guianas, Guyana ranged from slightly dry in southwest Guyana to moderately wet in the northeast, with both Suriname and French Guiana both being normal to slightly wet. Aruba was very wet while Curacao was extremely wet. Puerto Rico was predominantly normal apart from in the northeast that was slight to very wet. Conditions in Hispaniola ranged from moderately dry in the south to exceptionally wet in northern Dominican Republic. Conditions in Jamaica ranged from exceptionally dry in the south to slightly wet in the northwest, but Grand Cayman was slightly dry. Conditions ranged from exceptionally dry in northern Bahamas to normal in east and western Cuba. Belize ranged from extremely wet in the west to slightly wet in the south and to moderately wet in the north.

December 2017 to February 2018

Apart from in Guadeloupe that ranged from moderately wet to moderately dry, rainfall in the eastern Caribbean islands was normal to above normal for the three month period. Trinidad ranged from slightly wet in the west to very wet in the east; Tobago very to extremely wet; Grenada, Barbados and St. Lucia moderately wet; Martinique from normal to the north to exceptionally wet in the south; Dominica exceptionally wet; Antigua and St. Maarten normal; and St. Kitts normal to slightly wet. Conditions in the Guianas ranged from slightly dry in western and central Guyana and western Suriname to moderately wet in eastern French Guiana. Aruba was normal to slightly dry, but Curacao normal to slightly wet. Puerto Rico was predominantly normal apart from the northeast that was slightly to moderately wet. Conditions in Hispaniola ranged from normal in the south to extremely wet in the north. Jamaica was predominantly moderately wet apart from the extreme west that was slightly wet, but Grand Cayman was normal. Conditions in Cuba ranged from slightly dry in the west to exceptionally wet in the east, while northern Bahamas ranged from slightly dry to normal. Conditions in Belize ranged from extremely wet in the west to normal in the north and south.

September 2017 to February 2018

For the six month period, the rainfall in the eastern Caribbean was predominantly normal to above normal. Trinidad was slightly dry to exceptionally wet from west to east; Tobago moderate to extremely wet; Grenada moderately wet; Barbados extremely wet; St. Lucia normal to slightly wet; Martinique moderately dry to slightly wet from north to south; Dominica exceptionally wet; Guadeloupe extremely wet in the west to slightly wet in the east; Antigua normal; and St. Kitts normal to slightly wet. Conditions in the Guianas ranged from extremely dry in northwestern Guyana to moderately wet in northern Suriname and eastern and southeastern French Guiana. Aruba was slightly dry, but Curacao normal. Puerto Rico was exceptionally wet. Conditions in Hispaniola ranged from normal in the south to exceptionally wet in northern and eastern Dominican Republic, while in Jamaica they ranged from moderately dry in the southwest to extremely wet in the north. Grand Cayman was moderately wet. Cuba ranged from moderately dry in west central areas to exceptionally wet in the east, but northern Bahamas normal to moderately dry. Conditions in Belize ranged from normal in the east to moderately wet in the west and south and extremely wet in the north.

March 2017 to February 2018

Rainfall was normal to above normal in the islands of the eastern Caribbean over the twelve month period. Trinidad ranged from normal in the west to extremely wet in the east; Tobago slight to moderately wet; Grenada moderate to very wet; Barbados and St. Kitts moderately wet; St. Lucia normal to slightly wet; Martinique slightly dry to slightly wet; Dominica exceptionally wet; Guadeloupe exceptionally wet to the west to moderately wet in the east; and Antigua normal. Rainfall in the Guianas was predominantly normal to above normal (being extremely wet in northern Guyana/Suriname border areas) apart from a portion of northern Guyana. Aruba was slightly dry, but Curacao normal. Conditions in Puerto Rico ranged from severely dry in the west to exceptionally wet in the east, while in Hispaniola they ranged from normal in the south to extremely wet in the northeast. Jamaica was slightly dry in the south to exceptionally wet in the north, but Grand Cayman was normal. Conditions in Cuba ranged from slightly dry in west central areas to exceptionally wet in the east. Northern Bahamas was normal to moderately dry. Conditions in Belize ranged from normal in central areas to moderately wet in the north and south.

March 2016 to February 2018

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.

SPI Monitor January 2018

January 2018

Normal to above normal rainfall was experienced across the eastern Caribbean island chain for January. Trinidad was normal to moderately wet; Tobago and Dominica very to extremely wet; Grenada very wet; Barbados, St. Kitts, St. Thomas moderately wet; St. Lucia, Guadeloupe, Antigua and St. Maarten normal; and Martinique slight to moderately wet. The Guianas were predominantly normal apart from coastal areas that were normal to below normal and the southeast French Guiana that was slightly wet. Aruba was slightly dry, while Curacao was normal. Puerto Rico was moderately wet, while conditions in Hispaniola ranged from exceptionally wet in northern Haiti to very wet in southern Dominican Republic. Most of Jamaica was moderately wet with the western extreme very to extremely wet, while Grand Cayman was normal. Conditions in Cuba ranged from normal in the west to exceptionally wet in the east. Belize was moderately wet in central areas to normal to the north and south.

November 2017 to January 2018

Apart from Martinique that was moderately dry to slightly wet and Antigua that was slight to moderately dry, the islands of the eastern Caribbean experienced normal to above normal rainfall for the three month period. Trinidad ranged from normal to moderately wet; Tobago and St. Thomas moderately wet; Grenada normal to slightly wet; Barbados, St. Kitts and St. Maarten normal; St. Lucia normal in the north to slightly wet in the south; Dominica moderate to very wet; and Guadeloupe normal to slightly wet. Conditions in the Guianas ranged from extremely dry in northwest Guyana to moderately wet in eastern French Guyana, with most of Suriname being normal. Aruba was slightly dry, while Curacao was normal. Puerto Rico was predominantly moderately wet, with the southwest being slightly wet. Conditions in Hispaniola ranged from exceptionally wet in northwest Haiti and northeast Dominican Republic to slightly wet in southern Hispaniola. Conditions in Jamaica ranged from slightly wet in the south to exceptionally wet in the north, but Grand Cayman was normal. Cuba ranged from normal in the west to exceptionally wet in the east. Belize was predominantly normal apart from in the west that was slightly wet.

August 2017 to January 2018

For the six month period the islands of the eastern Caribbean had predominantly normal to above normal rainfall, with Martinique being normal to slightly dry. Trinidad was normal in the west to exceptionally wet in the east; Tobago very wet; Grenada moderately wet; Barbados very to extremely wet; St. Lucia normal to slightly wet; Dominica extreme to exceptionally wet; Guadeloupe moderate to extremely wet; Antigua normal; and St. Kitts moderately wet. The Guianas were predominantly normal apart from some areas in northern Guyana and the eastern border with Suriname that were below normal, and northern Suriname and eastern French Guiana that were slightly wet. Aruba was moderately dry, while Curacao was normal to slightly dry. Puerto Rico was exceptionally wet, but Hispaniola ranged from normal in the south to exceptionally wet in eastern Dominican Republic and very wet in northwestern Haiti. Conditions in Jamaica ranged from slightly dry in the west to extremely wet in the north, but Grand Cayman was slight to moderately wet. Cuba ranged from slight to moderately dry in west central areas to exceptionally wet in the east. Most of Belize was normal, with slightly wet areas in the extreme south and slight to moderately wet portions in the north.

February 2017 to January 2018

Normal to above normal rainfall was experienced in the islands of the eastern Caribbean. Trinidad was slight to extremely wet; Tobago slight to moderately wet; Grenada, Barbados and St. Kitts moderately wet; St. Lucia and Antigua normal; Martinique normal to slightly dry; Dominica extreme to exceptionally wet; and Guadeloupe moderate to exceptionally wet. Rainfall in the Guianas was predominantly normal to above normal apart from northern Guyana, with the northern Suriname-Guyana border being extremely wet. Aruba was slightly dry, while Curacao was normal. Conditions in Puerto Rico ranged from severely dry in the west to exceptionally wet in the east, but central Hispaniola was normal and ranging to extremely wet in eastern Dominican Republic and moderately wet in western Haiti. Jamaica ranged from normal in the west to extremely wet in the north, but Grand Cayman was normal. Conditions in Cuba ranged from slightly dry in west central areas to very wet in the west and exceptionally wet in the east. Belize was predominantly normal apart from the north that was slight to moderately wet.

February 2016 to January 2018

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.

SPEI December 2017

SPI Monitor December 2017

December 2017

Mixed rainfall conditions were experienced in the islands of the eastern Caribbean for December. Trinidad was very to exceptionally wet; Tobago slight to very wet; Grenada normal; Barbados normal to slightly wet; St. Vincent normal; St. Lucia moderate to very wet; Martinique normal to exceptionally wet; Dominica moderate to exceptionally wet; Guadeloupe normal to extremely dry; Antigua slightly wet; St. Kitts slight to moderately wet; St. Maarten moderately dry; and St. Croix moderately wet. Conditions in the Guianas ranged from severely dry in western Guyana to exceptionally wet in parts of French Guiana, but with most of the region normal to slightly dry. Aruba was moderately dry, but Curacao normal. Puerto Rico was predominantly slightly dry. Most of Hispaniola was normal except eastern Dominican Republic that was slight to moderately dry and the southwestern tip of Haiti that was slightly dry. Conditions in Jamaica ranged from normal in the east and west to exceptionally wet in the south; while Grand Cayman was normal. Conditions in Cuba ranged from severely dry in the west to slightly wet in east central areas, while for Belize they were predominantly normal apart from parts of the extreme west that were slightly dry and in the extreme southeast that were slight to moderately wet.

October to December 2017

For the three month period, mixed rainfall conditions were experienced in the islands of the eastern Caribbean. Trinidad ranged from normal to exceptionally wet; Tobago moderate to very wet; Grenada, St. Kitts normal and St. Maarten; Barbados slightly wet; St. Vincent normal to slightly dry; St. Lucia normal to slightly wet; Martinique normal to severely dry; Dominica normal to moderately wet; Guadeloupe slightly wet to exceptionally dry; Antigua moderately dry. Conditions in the Guianas ranged from exceptionally dry in western Guyana to exceptionally wet in northern French Guiana, with most of Suriname being normal. Aruba was slightly dry, but Curacao normal. Puerto Rico was normal to moderately wet from west to east. Hispaniola was mostly normal but slightly wet in western Haiti and parts of eastern Dominican Republic; while Jamaica ranged from normal in the west to extremely wet in central areas. Grand Cayman was normal. Conditions in Cuba ranged from normal to moderately wet, while in Belize they ranged from normal in the west to exceptionally wet in the south and to very wet in the north.

July to December 2017

Predominantly normal to above normal rainfall was experienced in the islands of the eastern Caribbean over the six month period. This is except for Trinidad that was ranged from slightly dry in the extreme southwest to exceptionally wet in the east, and Martinique that was normal to moderately dry. Tobago was normal to moderately wet; Grenada, St. Vincent, St. Lucia and Antigua normal; Barbados moderate to very wet; Dominica moderate to very wet; Guadeloupe normal to extremely wet; and St. Kitts slight to moderately wet. Conditions in the Guianas ranged from exceptionally dry in northern Guyana to exceptionally wet in northern French Guiana, with most of the area being normal to moderately wet. Aruba was slightly dry and Curacao normal. Puerto Rico was extreme to exceptionally wet. Hispaniola ranged from normal over southwest Haiti to extremely wet northeast Dominican Republic. Conditions in Jamaica ranged from moderately dry in the west to extremely wet in north central areas; but Grand Cayman was normal. Cuba ranged from slightly dry in west-central areas to exceptionally wet in the east, while Belize ranged from extremely dry in the extreme west to moderately wet in the extreme north.

January to December 2017

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

January 2016 to December 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.