SPEI December 2021

    

SPI Monitor December 2021

December 2021

Mixed conditions were seen throughout the islands of the eastern Caribbean during the month of December. Trinidad was exceptionally wet in the south to normal in the north; Tobago and Grenada normal; Barbados, St Vincent and St Croix moderately dry; Saint Lucia and Antigua slight to moderately dry; Martinique exceptionally dry in the southeast to normal in the northwest; Dominica predominantly normal ranging to slightly wet in the south and moderately dry in the coastal northeast; Guadeloupe normal in western areas to moderately dry in the east; St Kitts and Anguilla moderately wet to normal; St Maarten severely dry to normal and St Thomas predominantly normal to slightly dry in the south. Conditions in the Guianas ranged from normal to exceptionally wet. Aruba and Curacao were normal. Puerto Rico was predominantly normal with slightly wet conditions in the extreme north. Hispaniola ranged from moderately wet on the Haiti/ Dominican Republic border to normal in the west and to moderately dry in the east. Jamaica was predominantly normal ranging to slightly wet in the extreme south. Grand Cayman was slightly dry to normal. Cuba was predominantly normal ranging to extremely dry in the west and to slightly dry in the east. Northern Bahamas was normal and Belize was predominantly normal ranging to moderately wet in the southeast.

October to December 2021

Conditions throughout the eastern Caribbean were predominantly normal to below normal during the three month period. Trinidad ranged from exceptionally wet in the south to moderately dry on the northern border; Tobago normal to moderately dry; Grenada normal; Barbados severely dry in the extreme south to predominantly exceptionally dry; St Vincent predominantly moderately dry to severely dry in the northeast; Saint Lucia moderate to extremely dry; Martinique extremely dry in the extreme southeast to normal in the northwest; Dominica normal in the extreme south to extremely dry in the northeast; Guadeloupe moderate to exceptionally dry; Antigua exceptionally dry; St Kitts and St Thomas moderate to slightly dry; St Maarten slightly dry to normal; Anguilla normal to slightly wet and St Croix severely dry. Conditions in the Guianas ranged from moderately dry to exceptionally wet. Aruba slightly dry to normal and Curacao was normal. Puerto Rico ranged from moderately dry in extreme southern areas to normal in the north. Hispaniola was predominantly normal to exceptionally dry in east central Dominican Republic. Jamaica ranged from moderately dry in the extreme southeast to moderately wet in the northwest. Grand Cayman was normal. Cuba ranged from exceptionally dry in the extreme southwest to moderately wet in the extreme southeast. Northern Bahamas ranged from slightly wet to normal and Belize ranged from extremely dry in the west to normal in the east.

July to December 2021

Predominantly normal to below normal conditions prevailed over the six month period throughout the eastern Caribbean. Trinidad was exceptionally wet to normal south to north; Tobago normal to severely dry; Grenada and St Thomas normal to slightly dry; Barbados severe to slightly dry; St Vincent moderately dry; Saint Lucia moderate to extremely dry; Martinique and Guadeloupe exceptional to severely dry; Dominica moderate to exceptionally dry; Antigua extreme to exceptionally dry; St Kitts slight to moderately dry; St Maarten severely dry to normal; Anguilla predominantly normal to slightly wet in the north and St Croix predominantly severe to moderately dry from south to north. Conditions in the Guianas ranged from normal to exceptionally wet. Aruba was slightly dry to normal and Curacao was normal. Puerto Rico was moderately dry in the southeast to normal in the northwest. Hispaniola ranged from exceptionally dry in southeastern Dominican Republic to slightly wet in the northwest of the island. Jamaica ranged from moderately dry in the extreme southwest to very wet in the north and to exceptionally dry in the east. Grand Cayman was normal. Cuba ranged from exceptionally dry in western areas to slightly wet in the extreme southeastern tip. Northern Bahamas ranged from slightly wet to severely dry and Belize ranged from normal in western areas to extremely dry in the north and to moderately dry in the south.

January to December 2021

Over the twelve month period conditions throughout the eastern Caribbean were mostly normal to below normal. Trinidad was exceptionally dry in the southwest to normal in the northeast; Tobago and St Thomas normal to slightly dry; Grenada and Anguilla slightly wet to normal; Barbados moderately dry to normal; St Vincent, Dominica and St Croix moderate to severely dry; Saint Lucia and St Kitts moderate to extremely dry; Martinique extreme to exceptionally dry; Guadeloupe moderate to exceptionally dry; Antigua exceptionally dry and St Maarten extremely dry to normal. In the Guianas, conditions were predominantly exceptionally wet ranging to moderately wet. Aruba was slightly dry and Curacao was normal. Puerto Rico was predominantly normal ranging to slightly dry in the southeast. Hispaniola ranged from exceptionally dry in southeastern Dominican Republic to slightly wet around the northern Haiti/Dominican Republic border. Jamaica ranged from moderately dry in the west and extreme south to moderately wet in the north and extremely dry in the east. Grand Cayman was normal. Cuba ranged from exceptionally dry in the west to moderately wet on the extreme southeastern tip. Northern Bahamas ranged from normal to severely dry and Belize ranged from normal in western areas to moderately dry in the south and north.

January 2020 to December 2021

Conditions throughout the eastern Caribbean over the two year period were mostly normal to below normal. Trinidad ranged from extremely wet in the southwest to normal in the northeast; Tobago and St Maarten normal to moderately dry; Grenada and Barbados normal to slightly dry; St Vincent and Antigua severe to extremely dry, Saint Lucia and Martinique exceptional to severely dry; Dominica severe to slightly dry; Guadeloupe moderate to exceptionally dry; St Kitts slight to moderately dry; Anguilla normal to slightly wet from south to north; St Croix moderately dry and St Thomas normal. In the Guianas, conditions ranged from exceptionally wet to extremely dry. Aruba and Curacao were normal. Puerto Rico ranged from normal in the south to moderately wet in the north. Hispaniola ranged from exceptionally dry in southern and eastern areas to slightly wet around the northern Haiti/Dominican Republic border. Jamaica ranged from severely dry in the west and east to slightly dry in the south and very wet in the north. Grand Cayman was normal. Cuba was predominantly normal ranging to moderately dry in the extreme southwestern tip and to moderately wet in the extreme southeastern tip. Northern Bahamas ranged from extremely wet to slightly dry and Belize ranged from normal in the south to moderately wet in the northwest.

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.

 

Mean Temperature Anomalies October 2021

October 2021

Mixed temperature anomalies prevailed in the eastern Caribbean for October 2021. Trinidad, Tobago, Grenada, St. Kitts and St. Maarten were between 0.25 to 0.75 oC warmer; Barbados was between 0.25 and 1.50 oC warmer; Saint Lucia was between 0.75 oC warmer to 1.50 oC cooler, Martinique was between 0.75 to over 2.50 oC cooler; Dominica was between to 0.75 oC cooler to 0.75 oC warmer; Guadeloupe was between 0.25 oC cooler and 0.75 oC warmer; Antigua was between 0 and 0.25 oC warmer; St. Croix was between 0 to 0.75 oC cooler; St Thomas was 0 to 0.25 oC cooler. In the Guianas, conditions ranged from 1.50 oC cooler to 1.50 oC warmer. Aruba was between 0 to 0.75 oC warmer and Curacao was between 0.25 oC cooler and 0.25oC warmer. Puerto Rico was predominantly between 0.75 oC to 1.50 oC warmer with the east and western areas between 0.25 and 0.75 oC warmer. Dominican Republic was 0.25 to 0.75 oC warmer. Jamaica was between 1.50 oC warmer to 0.25 oC cooler west to east. Cuba was between 0 and 0.75 oC warmer. Grand Cayman was between 1.50 oC to 0.25 oC warmer west to east. Northern Bahamas were between 0.75 oC warmer to 0.25 oC cooler. Belize was between 0.75 oC cooler to 1.50 oC warmer.

August to October 2021

Mixed temperature anomalies prevailed in the eastern Caribbean for the period August to October 2021. Trinidad, Tobago, Grenada and St. Maarten were between 0.25 to 0.75 oC warmer;, Barbados was between 0 to 1.50 oC warmer southwest to northeast; Saint Lucia was between 0.75 oC warmer to 0.25 oC cooler; Martinique and was between 0 to 1.50 oC cooler; Dominica was between 0.75 oC warmer to 0.75 oC cooler; Guadeloupe was between 0.25 warmer  to  0.75 oC cooler; Antigua was between 0 oC to 0.25 oC cooler; St. Kitts was between 0 to 0.75 oC warmer; and St. Croix were between  0.25 and 0.75 oC cooler;  St. Thomas 0 to 0.25 oC warmer. Conditions in the Guianas were between 0.75 oC cooler to 0.75 oC warmer. Aruba was between 0 to 0.25 oC warmer and Curacao was between 0 and 0.25 oC cooler. Puerto Rico was between 0.25 to 1.50 oC warmer. Dominican Republic was between 0.25 oC cooler to 0.25 oC warmer. Jamaica was between 0.75 oC warmer to 0.75 oC cooler west to east. Cuba was between 0.75 oC warmer and 0.25 oC cooler. Grand Cayman was between 0.25 and 0.75 oC warmer. Northern Bahamas was between 0.75 oC cooler and 0.25 oC warmer. Belize was between 0.75 oC cooler and 1.50 oC warmer.

May to October 2021

Mixed temperature anomalies prevailed in the eastern Caribbean for the period May to October 2021. Trinidad was between 0.25 to 0.75 oC warmer; Tobago, Grenada and St. Maarten were between 0 to 0.25 oC warmer; Barbados was between 0.25 oC cooler to 0.75 oC warmer; Saint Lucia and Martinique were between 0.25 warm to 0.75 oC cooler; Dominica was between 0.75oC warmer to 0.75 oC cooler; Guadeloupe, Antigua and St. Croix were between 0 to 0.75 oC cooler; St. Kitts was predominantly between 0 and 0.25 oC warmer and ranged to 0.25 oC cooler; St. Thomas was between 0.25 and 0.75 oC warmer. Conditions in the Guianas ranged from 0.25 oC cooler to 0.75 oC warmer. Aruba was between 0 and 0.25 oC warmer. Curacao was between 0.25 and 0.75 oC cooler. Puerto Rico was between 0.25 and 0.75 oC warmer. Dominican Republic was predominantly between 0 to 0.25 oC cooler ranging up to 0.25 oC warmer in the southwest and extreme east. Cuba was predominantly between 0 and 0.25 oC warmer ranging up to 0.75 oC warmer in the extreme western tip. Grand Cayman was between 0.25 to 0.75 oC warmer. Jamaica was between 0.75 oC warmer to 1.50 oC cooler. Northern Bahamas was between 0.75 oC cooler to 0.25 oC warmer. Belize was between 0.75 oC cooler to 1.50 oC warmer.

November 2020 to October 2021

Mixed conditions prevailed in the islands of the eastern Caribbean for the Twelve-month period, November 2020 to October 2021. Trinidad and Grenada were predominantly between 0.25 to 0.75 oC warmer with the southwest ranging between 0 and 0.25 oC warmer; Tobago and St. Thomas were between 0.25 and 0.75 oC warmer; Barbados and Martinique were between 0.25 oC cooler to 0.75 oC warmer; Saint Lucia was between 0.25 oC warmer to 0.75 oC cooler south to north; Dominica was between 0.75 oC cooler to 0.75 oC warmer; ; Guadeloupe and Antigua were between 0 to 0.75 oC cooler; St. Kitts was between 0.25 oC cooler to 0.25 oC warmer; St. Maarten was between 0 to 0.75 oC warmer;  St. Croix was between 0 to 0.25 oC cooler. Conditions in the Guianas ranged from at least 0.75 oC cooler to 0.75 oC warmer. Aruba was between 0 to 0.25 oC warmer and Curacao was between 0.25 to 0.75 oC cooler. Puerto Rico was predominantly between 0.25 to 0.75 oC warmer with a small area in the northeast ranging between 0 and 0.25 oC warmer. Dominican Republic was between 0 and 0.25 oC warmer. Cuba was predominantly between 0.25 and 0.75 oC warmer with the east ranging between 0 and 0.25 oC warmer. Grand Cayman ranged from 0.25 and 0.75 oC warmer. Jamaica was between 1.50 oC warmer 1.50 oC cooler. Northern Bahamas was between 0 and 0.75 oC warmer. Belize was between 0.25 oC cooler to 1.50 oC warmer.

Mean Temperature for October 2021

Mean Temperature for the Period November 2020 to October 2021

SPEI November 2021

    

SPI Monitor November 2021

November 2021

Conditions throughout the eastern Caribbean were predominantly normal to below normal during the month of November. Trinidad ranged from slightly wet to exceptionally dry; Tobago exceptional to extremely dry; Grenada, St Vincent and Dominica moderately dry to normal; Barbados and Martinique slight to extremely dry; Saint Lucia severe to extremely dry; Guadeloupe moderate to extremely dry; Antigua extremely dry; St Kitts and St Thomas moderate to slightly dry; St Maarten normal: Anguilla normal to slightly wet and St Croix severe to moderately dry.  In the Guianas, conditions ranged from moderately dry to exceptionally wet. Aruba and Curacao were normal to slightly dry. Puerto Rico ranged from normal to extremely dry from west to east. Hispaniola ranged from moderately wet in the west to extremely dry in northern areas of the Dominican Republic. Jamaica ranged from slightly dry in the extreme west to extremely wet in the northwest and to severely dry in the extreme east. Grand Cayman was slight to moderately wet. Cuba was predominantly normal ranging to moderately dry in the extreme west. Northern Bahamas was normal to moderately wet and Belize ranged from severely dry in the southeast to slightly dry in central and northern areas and to normal in the east.

September to November 2021

Over the three month period conditions in the eastern Caribbean ranged from normal to below normal. Trinidad and St Maarten were predominantly normal ranging to slightly dry; Tobago slight to severely dry; Grenada and St Thomas slight to moderately dry; Barbados exceptional to slightly dry; St Vincent moderate to severely dry; Saint Lucia, Martinique and Dominica moderate to extremely dry; Guadeloupe severe to exceptionally dry; Antigua predominantly extremely dry to exceptionally dry; St Kitts and St Croix moderately dry and Anguilla normal. Conditions in the Guianas ranged from severely dry to exceptionally wet in central Guyana and northern French Guiana. Aruba was moderate to slightly dry and Curacao slightly dry in the extreme south to predominantly normal elsewhere. Puerto Rico ranged from moderately dry in southeastern areas to slightly dry in the northwest. Hispaniola ranged from normal in western areas of Haiti to exceptionally dry in eastern Dominican Republic. Jamaica ranged from moderately dry in southern areas to slightly wet in the northwest. Grand Cayman was slightly dry in the extreme west ranging to predominantly normal elsewhere. Cuba ranged from normal in central areas to exceptionally dry in the west and to slightly dry in the east. Northern Bahamas ranged from very wet to extremely dry and Belize ranged from exceptionally dry in the extreme southeast to moderately dry in western and northern areas as well as to normal in the east.

June to November 2021

Predominantly normal to below normal conditions were seen throughout the eastern Caribbean over the six month period. Trinidad ranged from moderately wet in the west to slightly dry in the northeast; Tobago normal to extremely dry; Grenada, St Thomas and Anguilla normal; Barbados, St Vincent and St Maarten normal to moderately dry; Saint Lucia, Dominica and St Croix moderately dry; Martinique moderate to severely dry; Guadeloupe moderate to exceptionally dry; Antigua extreme to exceptionally dry and St Kitts slight to moderately dry. Conditions in the Guianas ranged from slight to exceptionally wet. Aruba was slightly dry and Curacao was normal. Puerto Rico was predominantly normal apart from the extreme southwest that was slightly dry. Hispaniola was predominantly normal, ranging to severely dry in southern areas. Jamaica ranged from normal in southern, western and northeastern areas to extremely wet in the extreme northwest and to moderately dry in the east.  Grand Cayman was normal. Cuba was predominantly normal, ranging to exceptionally dry in the west and to moderately wet in the extreme southeast. Northern Bahamas ranged from normal to severely dry and Belize from severely dry in the southeast and extreme north to normal in the west.

December 2020 to November 2021

Apart from in the south, conditions throughout the eastern Caribbean were predominantly normal to below normal over the twelve month period. Trinidad was extremely wet to normal from southwest to northeast; Tobago and Barbados normal to moderately dry; Grenada slightly wet to normal; St Vincent severely dry; Saint Lucia moderate to extremely dry; Martinique extreme to exceptionally dry; Dominica and St Kitts severe to moderately dry; Guadeloupe moderate to exceptionally dry; Antigua exceptionally dry; St Maarten extremely dry to normal; Anguilla slightly dry to slightly wet south to north; St Croix moderately dry and St Thomas normal. Conditions in the Guianas ranged from exceptionally wet to exceptionally dry. Aruba and Curacao were normal. Puerto Rico was predominantly normal ranging to slightly dry in the southeast. Hispaniola ranged from exceptionally dry in the southeast of the Dominican Republic to slightly wet around the northern Haiti/ Dominican Republic border. Jamaica was predominantly normal ranging to moderately dry in the west and east and moderately wet in the northwest. Cuba ranged from exceptionally dry in the west to slightly wet in the extreme southeast. Northern Bahamas ranged from slight to extremely dry and Belize was normal in northern areas ranging to severely dry in the southeast to slightly dry in the north.

December 2019 to November 2021

Apart from Trinidad that was normal to very wet, over the two year period, conditions throughout the eastern Caribbean were predominantly normal to below normal. Tobago, Grenada, Dominica and St Maarten were normal to moderately dry; Barbados slightly dry in the extreme south to predominantly normal; St Vincent exceptional to extremely dry; Saint Lucia exceptional to severely dry; Martinique and Antigua extreme to moderately dry; Guadeloupe slight to exceptionally dry; St Kitts slight to moderately dry; Anguilla normal to slightly wet; St Croix moderately dry and St Thomas normal. In the Guianas, conditions ranged from exceptionally wet to extremely dry. Aruba and Curacao were normal. Puerto Rico ranged from moderately dry in western areas to slightly wet in the northeast. Hispaniola ranged from exceptionally dry in southern areas of the Dominican Republic to slightly wet around the northern Haiti/ Dominican Republic border. Jamaica was predominantly normal ranging to moderately dry in the west and to moderately wet in the northwest. Grand Cayman was normal. Cuba was predominantly normal with moderately dry conditions in the extreme southwestern areas, slightly dry areas in the northwest also moderately wet conditions in the extreme southeast and slightly wet areas in the extreme north. Northern Bahamas ranged from extremely wet to slightly dry and Belize was predominantly normal with slightly wet conditions in central areas ranging to slightly dry in the 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.

SPEI October 2021