Heat wave occuring from September 26 2011 to September 28 2011 at 17.5°N 345.5°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania

Duration: 3 days

Time span: September 26 2011 to September 28 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 35.7 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 37.8 °C

Event center: 17.5°N 345.5°E

Area affected: 67627 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-26_to_2011-Sep-28_345.5_17.5

Heat wave occuring from September 21 2011 to October 19 2011 at 41.0°N 351.5°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Andorra
  • Austria
  • Belarus
  • Belgium
  • Bosnia and Herzegovina
  • Canarias
  • Croatia
  • Czech Republic
  • Denmark
  • France
  • Germany
  • Ireland
  • Italy
  • Lithuania
  • Luxembourg
  • Madeira
  • Mauritania
  • Montenegro
  • Morocco
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Slovakia
  • Slovenia
  • Spain
  • Sweden
  • Switzerland
  • Ukraine
  • United Kingdom

Duration: 29 days

Time span: September 21 2011 to October 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 19.6 °C
  • Maximum temperature anomaly: 10.2 °C
  • Maximum temperature: 36.1 °C

Event center: 41.0°N 351.5°E

Area affected: 8038184 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-21_to_2011-Oct-19_351.5_41.0

Cold spell occuring from September 13 2011 to September 17 2011 at 17.5°N 341.0°E

Download data: JSON

Event type: Cold spell

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

  • Mauritania
  • Morocco

Duration: 5 days

Time span: September 13 2011 to September 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 24.2 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 20.3 °C

Event center: 17.5°N 341.0°E

Area affected: 260381 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-Sep-13_to_2011-Sep-17_341.0_17.5

Heat wave occuring from September 06 2011 to September 27 2011 at 29.0°N 354.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco
  • Tunisia

Duration: 22 days

Time span: September 06 2011 to September 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 32.6 °C
  • Maximum temperature anomaly: 9.2 °C
  • Maximum temperature: 38.3 °C

Event center: 29.0°N 354.5°E

Area affected: 1546264 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-06_to_2011-Sep-27_354.5_29.0

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

Cold spell occuring from August 19 2011 to August 21 2011 at 16.0°N 353.5°E

Download data: JSON

Event type: Cold spell

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

  • Mali
  • Mauritania

Duration: 3 days

Time span: August 19 2011 to August 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 26.4 °C
  • Minimum temperature anomaly: -3.7 °C
  • Minimum temperature: 24.7 °C

Event center: 16.0°N 353.5°E

Area affected: 62495 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-Aug-19_to_2011-Aug-21_353.5_16.0

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 August 03 2011 to August 05 2011 at 18.5°N 345.5°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania

Duration: 3 days

Time span: August 03 2011 to August 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 36.3 °C
  • Maximum temperature anomaly: 5.0 °C
  • Maximum temperature: 38.9 °C

Event center: 18.5°N 345.5°E

Area affected: 113806 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-05_345.5_18.5

Cold spell occuring from August 01 2011 to August 07 2011 at 26.5°N 345.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritania
  • Morocco

Duration: 7 days

Time span: August 01 2011 to August 07 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 22.9 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 20.0 °C

Event center: 26.5°N 345.5°E

Area affected: 61293 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-Aug-01_to_2011-Aug-07_345.5_26.5

Heat wave occuring from July 28 2011 to July 31 2011 at 22.5°N 345.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco

Duration: 4 days

Time span: July 28 2011 to July 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 39.2 °C
  • Maximum temperature anomaly: 7.7 °C
  • Maximum temperature: 41.5 °C

Event center: 22.5°N 345.5°E

Area affected: 430664 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-28_to_2011-Jul-31_345.5_22.5