Heat wave occuring from August 29 2021 to September 09 2021 at 20.5°N 343.5°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania
  • Senegal

Duration: 12 days

Time span: August 29 2021 to September 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 29.6 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 37.2 °C

Event center: 20.5°N 343.5°E

Area affected: 120817 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_2021-Aug-29_to_2021-Sep-09_343.5_20.5

Heat wave occuring from August 28 2021 to September 10 2021 at 16.5°N 355.5°E

Download data: JSON

Event type: Heat wave

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

  • Mali
  • Mauritania
  • Senegal

Duration: 14 days

Time span: August 28 2021 to September 10 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 33.3 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 37.5 °C

Event center: 16.5°N 355.5°E

Area affected: 436415 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_2021-Aug-28_to_2021-Sep-10_355.5_16.5

Heat wave occuring from August 09 2021 to August 14 2021 at 17.5°N 345.0°E

Download data: JSON

Event type: Heat wave

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

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

Duration: 6 days

Time span: August 09 2021 to August 14 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 30.9 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 38.1 °C

Event center: 17.5°N 345.0°E

Area affected: 661268 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_2021-Aug-09_to_2021-Aug-14_345.0_17.5

Heat wave occuring from July 25 2021 to July 29 2021 at 14.0°N 344.0°E

Download data: JSON

Event type: Heat wave

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

  • Gambia
  • Mali
  • Mauritania
  • Senegal

Duration: 5 days

Time span: July 25 2021 to July 29 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 32.5 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 35.5 °C

Event center: 14.0°N 344.0°E

Area affected: 119402 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_2021-Jul-25_to_2021-Jul-29_344.0_14.0

Cold spell occuring from July 22 2021 to July 29 2021 at 15.0°N 340.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritania
  • Senegal

Duration: 8 days

Time span: July 22 2021 to July 29 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 23.8 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: 20.4 °C

Event center: 15.0°N 340.5°E

Area affected: 198308 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_2021-Jul-22_to_2021-Jul-29_340.5_15.0

Cold spell occuring from July 18 2021 to August 27 2021 at 37.0°N 351.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Andorra
  • Austria
  • Belgium
  • Czechia
  • France
  • Germany
  • Italy
  • Luxembourg
  • Mali
  • Mauritania
  • Morocco
  • Netherlands
  • Portugal
  • Spain
  • Switzerland

Duration: 41 days

Time span: July 18 2021 to August 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 10.0 °C

Event center: 37.0°N 351.0°E

Area affected: 2492586 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_2021-Jul-18_to_2021-Aug-27_351.0_37.0

Heat wave occuring from July 13 2021 to July 15 2021 at 22.0°N 347.0°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: July 13 2021 to July 15 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 37.6 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 40.4 °C

Event center: 22.0°N 347.0°E

Area affected: 54349 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_2021-Jul-13_to_2021-Jul-15_347.0_22.0

Heat wave occuring from July 12 2021 to July 28 2021 at 13.0°N 347.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Chad
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Morocco
  • Niger
  • Senegal

Duration: 17 days

Time span: July 12 2021 to July 28 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 35.3 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 42.5 °C

Event center: 13.0°N 347.5°E

Area affected: 3233510 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_2021-Jul-12_to_2021-Jul-28_347.5_13.0

Heat wave occuring from July 11 2021 to July 14 2021 at 27.0°N 347.0°E

Download data: JSON

Event type: Heat wave

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

  • Mauritania

Duration: 4 days

Time span: July 11 2021 to July 14 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 32.4 °C
  • Maximum temperature anomaly: 12.0 °C
  • Maximum temperature: 37.8 °C

Event center: 27.0°N 347.0°E

Area affected: 80958 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_2021-Jul-11_to_2021-Jul-14_347.0_27.0

Heat wave occuring from July 06 2021 to July 11 2021 at 13.0°N 348.0°E

Download data: JSON

Event type: Heat wave

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

  • Gambia
  • Mali
  • Mauritania
  • Senegal

Duration: 6 days

Time span: July 06 2021 to July 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 32.0 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 35.6 °C

Event center: 13.0°N 348.0°E

Area affected: 80979 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_2021-Jul-06_to_2021-Jul-11_348.0_13.0