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 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

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

Heat wave occuring from July 10 2011 to July 24 2011 at 12.5°N 25.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Benin
  • Central African Republic
  • Chad
  • Eritrea
  • Ethiopia
  • Mali
  • Niger
  • Nigeria
  • South Sudan
  • Sudan

Duration: 15 days

Time span: July 10 2011 to July 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.6 °C
  • Mean temperature: 32.4 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 38.0 °C

Event center: 12.5°N 25.0°E

Area affected: 1887464 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-10_to_2011-Jul-24_25.0_12.5

Heat wave occuring from July 08 2011 to August 05 2011 at 30.5°N 19.5°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Algeria
  • Bosnia and Herzegovina
  • Bulgaria
  • Chad
  • Croatia
  • Egypt
  • Greece
  • Hungary
  • Italy
  • Libya
  • Mali
  • Montenegro
  • Niger
  • Nigeria
  • North Macedonia
  • Romania
  • Serbia
  • Slovenia
  • Sudan
  • Tunisia
  • Ukraine

Duration: 29 days

Time span: July 08 2011 to August 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 33.4 °C
  • Maximum temperature anomaly: 9.7 °C
  • Maximum temperature: 41.9 °C

Event center: 30.5°N 19.5°E

Area affected: 5119032 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-08_to_2011-Aug-05_19.5_30.5

Cold spell occuring from July 08 2011 to August 30 2011 at 28.0°N 329.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Andorra
  • Austria
  • Belgium
  • Bosnia and Herzegovina
  • Croatia
  • Czech Republic
  • Denmark
  • Faroe Islands
  • France
  • Germany
  • Hungary
  • Ireland
  • Italy
  • Madeira
  • Mali
  • Mauritania
  • Morocco
  • Netherlands
  • Poland
  • Portugal
  • Slovakia
  • Slovenia
  • Spain
  • Switzerland
  • United Kingdom

Duration: 54 days

Time span: July 08 2011 to August 30 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 19.4 °C
  • Minimum temperature anomaly: -11.1 °C
  • Minimum temperature: 0.8 °C

Event center: 28.0°N 329.0°E

Area affected: 11460139 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-Jul-08_to_2011-Aug-30_329.0_28.0

Cold spell occuring from June 05 2011 to June 12 2011 at 24.0°N 357.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Mali
  • Mauritania
  • Morocco

Duration: 8 days

Time span: June 05 2011 to June 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 29.9 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 21.8 °C

Event center: 24.0°N 357.0°E

Area affected: 804153 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-Jun-05_to_2011-Jun-12_357.0_24.0

Heat wave occuring from June 02 2011 to June 14 2011 at 24.0°N 12.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Cameroon
  • Central African Republic
  • Chad
  • Cyprus
  • Egypt
  • Libya
  • Mali
  • Niger
  • Nigeria
  • South Sudan
  • Sudan

Duration: 13 days

Time span: June 02 2011 to June 14 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 33.4 °C
  • Maximum temperature anomaly: 10.3 °C
  • Maximum temperature: 39.0 °C

Event center: 24.0°N 12.5°E

Area affected: 2917373 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-Jun-02_to_2011-Jun-14_12.5_24.0

Heat wave occuring from May 30 2011 to June 02 2011 at 19.0°N 357.5°E

Download data: JSON

Event type: Heat wave

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

  • Mali

Duration: 4 days

Time span: May 30 2011 to June 02 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 38.1 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 40.2 °C

Event center: 19.0°N 357.5°E

Area affected: 58648 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-May-30_to_2011-Jun-02_357.5_19.0