SPI Discussion June 2015

June 2015

Apart from Trinidad that was moderate to very wet, the islands of the eastern Caribbean were normal to below normal (and particularly below normal). Tobago, Grenada and Anguilla were slightly dry; Barbados, St. Vincent, St. Lucia, Antigua, St. Maarten and St. Croix were moderately dry; St. Kitts normal; and Dominica extremely dry. Conditions in Guyana ranged from extremely wet in the west to slightly wet in the east. Both Aruba was normal, but Puerto Rico slightly dry. The Dominican Republic ranged from extremely dry in the south to moderately wet in the north. Conditions in Jamaica ranged from slight to extremely dry. Grand Cayman was moderately wet, but Cuba was predominantly normal, though to the extreme east slight to severely dry conditions existed. In Belize conditions were moderately wet in central areas becoming progressively drier to the north and south to normal.

April to June 2015

For the three month period, normal to below normal (and particularly below normal) conditions were experienced in the eastern Caribbean islands. Trinidad was normal; Tobago, St. Kitts and Anguilla moderately dry; Grenada, St. Vincent and St. Lucia slightly dry; Barbados severely dry; Dominica exceptionally dry; and Antigua, St. Maarten and St. Croix extremely dry. Conditions in Guyana ranged from exceptionally wet in the west to moderately wet in the east. Aruba was severely dry and Puerto Rico moderate to severely dry. As one moves outward from the normal east central areas of the Dominican Republic, conditions became relatively drier to become exceptionally dry in the southwest. Western and eastern portions of Jamaica were dry, up to being extremely so, but Grand Cayman was normal to slightly dry. Cuba was dominated by normal rainfall, but some areas were not, particularly central areas that were slight to moderately dry, eastern areas that were slight to moderately wet and the extreme east that was slight to severely dry. Conditions in the majority of Belize were normal, however the extreme south was slightly wet, and the north slight to extremely wet.

January to June 2015

The islands of the eastern Caribbean were normal to below normal for the six month period. Trinidad, Grenada and St. Vincent were normal; Tobago and Barbados slightly dry; St. Lucia slight to moderately dry; Dominica, Antigua, St. Maarten and St. Croix exceptionally dry; S. Kitts moderately dry; and Anguilla severely dry. Conditions in Guyana ranged from extremely dry in the west to slightly wet in the east. Aruba was moderately dry, while Puerto Rico was normal to moderately dry. Conditions in the Dominican Republic ranged from extremely dry in the west to normal in central and eastern areas. Central areas of Jamaica were normal, while western and eastern areas were slight to moderately dry. Grand Cayman was normal, like most of Cuba apart from areas in the south and south east that were slightly dry. Belize was predominantly normal apart from southern areas that were slight to moderately wet.

July 2014 to June 2015

Apart from Trinidad that was slightly wet, normal to below normal conditions were experienced in the islands of the eastern Caribbean. Tobago, Grenada, Barbados, and Anguilla normal; St. Vincent, St. Maarten and St. Croix slightly dry; St. Lucia, Antigua and St. Kitts moderately dry; and Dominica exceptionally dry. Conditions in Guyana ranged from extremely wet in the northwest to normal in the east. Aruba was slightly dry, while Puerto Rico was normal. Conditions in the Dominican Republic ranged from severely dry in the southwest to normal in the northeast, but ranged from normal in west and central areas to severely dry in the east. Grand Cayman was slightly dry, while conditions in Cuba were normal in the west, slightly dry in the east and slight to moderately dry in central areas. Conditions in Belize were predominantly normal apart from the extreme west that was slight to moderately dry and the north that was slight to moderately wet.

 

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 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

For 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

Apart 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

Normal 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.

SPI Discussion February 2015

February 2015

Apart from Barbados that was moderately wet and St. Maarten that was moderately dry, normal to slightly dry conditions predominated in the eastern Caribbean and Guyana. Trinidad and Guyana were normal to slightly wet; Tobago, Dominica and Antigua slightly dry; Grenada, St. Vincent, St. Lucia, St. Kitts, Anguilla, St. Maarten and St. Croix normal. Aruba was moderately dry, but Puerto Rico slight to moderately wet. Conditions in Jamaica ranged from moderately wet in the west to normal in the east, while Grand Cayman was moderately dry. Apart from the eastern extremities of Cuba that were slightly wet, Cuba was normal. Conditions in Belize ranged from normal in the south to extremely dry in the north.

December 2014 to February 2015

For the three month period, mixed conditions were experienced in the eastern Caribbean and Guyana. Trinidad, Tobago, St. Vincent and Antigua were normal; Barbados and St. Vincent slightly dry; St. Lucia and St. Maarten severely dry; Dominica, St. Kitts and Anguilla moderately dry; St. Croix slightly wet; and Guyana predominantly normal, but slightly wet in the northwest. Aruba was normal but Puerto Rico slightly wet. Conditions in Jamaica ranged from moderately wet in the west to slightly dry in the east, but Grand Cayman was normal. Cuba was predominantly normal, while Belize ranged from moderately dry in the south to moderately wet in the north.

September 2014 to February 2015

Conditions were contrasting between the Windward Islands and the rest of the eastern island chain for the six month period. Trinidad and Anguilla were slightly wet; Tobago and Grenada moderately wet; Barbados, Antigua, St. Kitts, St. Maarten and St. Croix normal; St. Vincent and St. Lucia slightly dry; and Dominica extremely dry. Conditions in Guyana ranged from moderately wet in the north to normal southward. Aruba was normal but Puerto Rico moderately wet. Conditions in Jamaica ranged from slightly wet in the west to severely dry in the east, while Grand Cayman was moderately dry. Cuba was normal to slightly dry, while conditions in Belize ranged from normal to very wet.

March 2014 to January 2015

Normal to below normal conditions dominated the islands of the eastern Caribbean. Trinidad, Tobago, Grenada, Barbados, Anguilla, St. Croix and St. Maarten were normal; St. Vincent and Antigua moderately dry; St. Lucia severely dry; Dominica exceptionally dry; and St. Kitts slightly dry. Conditions in Guyana ranged from extremely wet in the north to moderately dry in the east. Aruba was slightly dry, but Puerto Rico slightly wet. Conditions in Jamaica ranged from slightly wet in the west to severely dry in the east, while Grand Cayman was moderately dry. Central areas of Cuba were slight to severely dry, while the western and eastern areas were normal to slightly dry. Conditions in Belize ranged from moderately dry in the west and 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 Discussion December 2014

December 2014

Mixed conditions prevailed in the eastern Caribbean and Guyana for the month, with the south being normal to below normal and the north normal to above normal. Trinidad, Tobago, Antigua, St. Kitts and Anguilla were normal; Grenada and Dominica moderately dry; Barbados and St. Vincent extremely dry; St. Lucia exceptionally dry; St. Maarten abnormally dry; St. Croix moderately wet; and Guyana ranging from abnormally wet in the northwest to moderately dry in the east. Both Aruba and Puerto Rico were normal. Conditions in Jamaica ranged from extremely wet in the west to normal in the east, while Grand Cayman was normal. Though predominantly normal, there were below normal conditions in the west and above normal in the east in Cuba. In Belize the range was from moderately dry in the south to extremely wet in the north.

October to December 2014

For the three month period, mixed conditions were experienced in the eastern Caribbean and Guyana. Trinidad, Grenada, St. Lucia, Antigua and St. Kitts were normal; Tobago very wet; Barbados and St. Croix abnormally wet; St. Vincent abnormally dry; Dominica extremely dry; Anguilla and St. Maarten moderately wet; and Guyana from very wet in the north to normal in the south. Both Aruba and Puerto Rico were normal. Conditions in Jamaica ranged from moderately wet in the west to moderately dry in the east, while Grand Cayman was abnormally dry. Apart from some central areas that were abnormally dry, Cuba was normal. Conditions in Belize ranged from normal in the south to moderately wet in the north.

July to December 2014

Mixed conditions prevailed in the eastern Caribbean and Guyana for the six month period. Trinidad was very to abnormally dry, Tobago moderately wet; Grenada, Barbados, Antigua, St. Kitts, St. Maarten and St. Croix normal; St. Vincent moderately dry; St. Lucia abnormally dry; Dominica extremely dry; and Guyana ranging from extremely wet in the north to normal in the south. Aruba was normal, but Puerto Rico abnormal to moderately wet. Conditions in Jamaica ranged from abnormally wet in the west to severely dry in the east, but Grand Cayman moderately dry. Normal to severely dry conditions were experienced in Cuba. Conditions in Belize ranged from moderately dry in the south to moderately wet in the north.

January to December 2014

Normal to below normal rainfall was experienced in 2014 in the islands of the eastern Caribbean. Trinidad was severe to moderately dry; Tobago, Grenada, Barbados, Anguilla, St. Maarten and St. Croix normal; St. Vincent severely dry; St. Lucia and Antigua moderately dry; and St. Kitts abnormally dry. In Guyana, the year ranged from extremely wet in the north to moderately dry in the east. Aruba was abnormally dry, but Puerto Rico normal to abnormally wet. Conditions in Jamaica ranged from moderately wet in the west to moderately dry in the east, while Grand Cayman was moderately dry. Apart from west central areas that were abnormal to moderately dry, Cuba was normal. Belize ranged from moderately dry in the south to normal in the north.

SPI Discussion October 2014

October 2014

There were diverse rainfall experiences during the month in the eastern Caribbean and Guyana. Trinidad, Grenada and St. Maarten were moderately wet; Tobago and Barbados abnormally dry; St. Vincent and Dominica severely dry; St. Lucia and Antigua normal; St. Kitts and Anguilla very wet; St. Croix moderately dry; and Guyana from very wet in the west to abnormally dry in the east. Puerto Rico was moderate to severely dry, while Aruba was normal. Conditions in Jamaica ranged from normal in the west to severely dry in the east, but Grand Cayman was normal. Apart from an area in the northeast of the island that was abnormally dry, Cuba was normal. Belize was moderately wet in the south and abnormally wet in the north.

August to October 2014

For the three month period, diverse rainfall conditions were experienced in the eastern Caribbean and Guyana. Trinidad, Tobago, Barbados, St. Lucia, Antigua, Anguilla, St. Maarten and St. Croix were normal; Grenada moderately wet; St. Vincent and Dominica moderately dry; St. Kitts abnormally dry; and Guyana abnormally wet in the west and normal in the east. Puerto Rico was normal to abnormally wet; while Aruba was normal. Conditions in Jamaica ranged from normal in the west to extremely dry in the east, but Grand Cayman was abnormally dry. Apart from northern regions that were abnormally wet, Belize was normal.

May to October 2014

Normal to below normal conditions dominated the islands of the eastern Caribbean for the six month period. Trinidad, Grenada, Anguilla, St. Maarten and St. Croix were normal; Tobago, Barbados and St. Kitts abnormally dry; St Vincent and Dominica severely dry; and St. Lucia and Antigua moderately dry. Conditions in Guyana ranged from very wet in the northwest to exceptionally dry in the east, but both Puerto Rico and Aruba were normal. Conditions in Jamaica ranged from normal in the west to extremely dry in the east, while Grand Cayman was abnormally dry. Normal to moderately dry conditions existed across Cuba. Belize was abnormally dry in the south and normal in the north.

November 2013 to October 2014

Diverse rainfall was experienced over the period across the eastern Caribbean and Guyana. Trinidad was abnormal to moderately wet; Tobago, Barbados and Antigua moderately dry; Grenada, St. Croix and St. Maarten normal; St. Vincent and St. Kitts severely dry; St. Lucia abnormally dry; Dominica exceptionally dry; and Guyana from extremely wet in the west to abnormally dry in the east. Puerto Rico was predominantly abnormally wet, but Aruba was moderately dry. Conditions in Jamaica ranged from abnormally wet in the west to severely dry in the east, but Grand Cayman was normal. Apart from the western part of the island that was abnormal to extremely wet, Cuba was dry. Rainfall in Belize ranged from moderately wet in the west to normal to the north and south.

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.