SPI October 2014

SPI Monitor October 2014

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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

spi3oct2014For 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

spi6oct2014Normal 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

spi12oct2014Diverse 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.

SPI September 2014

SPI Monitor September 2014

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SPI Discussion September 2014

September 2014

Apart from Grenada that was moderately wet, the islands of the eastern Caribbean experienced normal to below normal rainfall. Trinidad was normal to abnormally dry; Tobago, Dominica and Antigua abnormally dry; St. Kitts, Barbados, St. Vincent, St. Lucia and St. Croix normal; and Anguilla and St. Maarten moderately dry. Conditions in Guyana ranged from normal in the west to severely dry in the east. Aruba was normal while Puerto Rico was abnormally wet in the west and normal in the east. Jamaica ranged from normal in the west to severely dry in the east, but Grand Cayman was normal. Apart from the eastern extremity of Cuba that ranged from abnormal to severely dry, Cuba was predominantly normal. Belize conditions ranged from abnormally wet in the south to very wet in the north.

July to September 2014

spi_3sept2014For the three month period, rainfall in the islands of the eastern Caribbean was normal to below normal. Trinidad, Tobago, Grenada, St. Vincent, St. Kitts and St. Croix were normal; Barbados and Antigua moderately dry; Dominica abnormally dry; Anguilla extremely dry; and St. Maarten severely dry. Rainfall in Guyana ranged from moderately wet in the west to moderately dry in the east. Aruba was normal, while Puerto Rico was moderately wet. Rainfall in Jamaica ranged from normal in the west to moderately dry in the east, but Grand Cayman was normal. The eastern and western portions of Cuba were normal, while central areas were abnormal to moderately dry. Belize ranged from severely dry in the south to normal in the north.

April to September 2014

spi_6sept2014Normal to below normal rainfall totals dominated the six month period in the islands of the eastern Caribbean. Trinidad and St. Kitts were normal; Tobago, Grenada, St. Lucia, Antigua and Anguilla moderately dry; Barbados, St. Vincent and Dominica severely dry; St. Maarten abnormally dry and St. Croix normal. Conditions in Guyana ranged from very wet in the northwest to exceptionally dry in the east. Aruba was moderately dry, but Puerto Rico abnormally wet. Rainfall in Jamaica ranged from abnormally wet in the west to moderately dry in the east, while Grand Cayman was abnormally dry. The western half of Cuba was abnormal to moderately dry, while the east was predominantly normal. Belize rainfall ranged from moderately dry in the south to normal in the north.

October 2013 to September 2014

spi_12sept2014Apart from Trinidad that was abnormal to moderately wet, the islands of the eastern Caribbean were normal to moderately dry. Tobago, St. Lucia and St. Maarten were abnormally dry; Grenada, St. Vincent, Anguilla and St. Croix normal; Barbados, Antigua and St. Kitts moderately dry; and Dominica severely dry. Conditions in Guyana ranged from extremely wet in the west to abnormally dry in the east. Aruba was moderately dry, but Puerto Rico abnormally wet. Jamaica ranged from normal in the west to moderately dry in the east, while Grand Cayman was normal. Apart from western areas that were moderate to extremely wet, Cuba was predominantly normal. Conditions in Belize ranged from moderately wet in the west to normal to the south and 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.