Heat wave occuring from January 05 2012 to January 15 2012 at 6.0°N 354.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 11 days

Time span: January 05 2012 to January 15 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 28.8 °C

Event center: 6.0°N 354.5°E

Area affected: 98216 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2012-Jan-05_to_2012-Jan-15_354.5_6.0

Cold spell occuring from December 31 2011 to January 03 2012 at 12.0°N 344.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Guinea
  • Guinea-Bissau

Duration: 4 days

Time span: December 31 2011 to January 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 23.2 °C
  • Minimum temperature anomaly: -3.0 °C
  • Minimum temperature: 20.4 °C

Event center: 12.0°N 344.5°E

Area affected: 78619 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2011-Dec-31_to_2012-Jan-03_344.5_12.0

Cold spell occuring from December 26 2011 to January 02 2012 at 16.5°N 345.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Algeria
  • Burkina Faso
  • Côte d’Ivoire
  • Guinea
  • Mali
  • Mauritania
  • Morocco
  • Niger
  • Senegal

Duration: 8 days

Time span: December 26 2011 to January 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 15.1 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 4.5 °C

Event center: 16.5°N 345.0°E

Area affected: 2854943 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2011-Dec-26_to_2012-Jan-02_345.0_16.5

Cold spell occuring from December 17 2011 to December 20 2011 at 12.5°N 344.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Gambia
  • Guinea
  • Guinea-Bissau
  • Senegal

Duration: 4 days

Time span: December 17 2011 to December 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 23.7 °C
  • Minimum temperature anomaly: -2.8 °C
  • Minimum temperature: 22.6 °C

Event center: 12.5°N 344.5°E

Area affected: 54329 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2011-Dec-17_to_2011-Dec-20_344.5_12.5

Heat wave occuring from October 20 2011 to November 11 2011 at 13.5°N 350.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Guinea
  • Mali
  • Mauritania
  • Senegal

Duration: 23 days

Time span: October 20 2011 to November 11 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 31.9 °C
  • Maximum temperature anomaly: 4.1 °C
  • Maximum temperature: 36.0 °C

Event center: 13.5°N 350.5°E

Area affected: 405834 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Oct-20_to_2011-Nov-11_350.5_13.5

Heat wave occuring from October 02 2011 to October 13 2011 at 13.5°N 350.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Burkina Faso
  • Côte d’Ivoire
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Liberia
  • Mali
  • Mauritania
  • Senegal
  • Sierra Leone

Duration: 12 days

Time span: October 02 2011 to October 13 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.7 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 34.4 °C

Event center: 13.5°N 350.0°E

Area affected: 824269 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Oct-02_to_2011-Oct-13_350.0_13.5

Heat wave occuring from September 03 2011 to September 05 2011 at 11.5°N 346.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Guinea
  • Guinea-Bissau
  • Senegal
  • Sierra Leone

Duration: 3 days

Time span: September 03 2011 to September 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 28.6 °C

Event center: 11.5°N 346.5°E

Area affected: 78849 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Sep-03_to_2011-Sep-05_346.5_11.5

Heat wave occuring from September 01 2011 to September 15 2011 at 15.5°N 351.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Burkina Faso
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 15 days

Time span: September 01 2011 to September 15 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 31.7 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 36.4 °C

Event center: 15.5°N 351.0°E

Area affected: 522049 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Sep-01_to_2011-Sep-15_351.0_15.5

Heat wave occuring from August 03 2011 to August 17 2011 at 14.0°N 347.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Algeria
  • Gambia
  • Guinea
  • Mali
  • Mauritania
  • Morocco
  • Senegal

Duration: 15 days

Time span: August 03 2011 to August 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 37.1 °C
  • Maximum temperature anomaly: 8.8 °C
  • Maximum temperature: 41.5 °C

Event center: 14.0°N 347.0°E

Area affected: 1428403 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Aug-03_to_2011-Aug-17_347.0_14.0

Heat wave occuring from July 20 2011 to July 25 2011 at 15.0°N 349.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Burkina Faso
  • Côte d’Ivoire
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 6 days

Time span: July 20 2011 to July 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 31.7 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 38.4 °C

Event center: 15.0°N 349.0°E

Area affected: 904208 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2011-Jul-20_to_2011-Jul-25_349.0_15.0