Heat wave occuring from June 30 2011 to July 10 2011 at 11.0°N 23.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Congo
  • Congo DRC
  • Ethiopia
  • South Sudan
  • Sudan

Duration: 11 days

Time span: June 30 2011 to July 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 28.8 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 35.7 °C

Event center: 11.0°N 23.5°E

Area affected: 1265683 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-30_to_2011-Jul-10_23.5_11.0

Heat wave occuring from June 25 2011 to June 28 2011 at 12.5°N 27.0°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Sudan

Duration: 4 days

Time span: June 25 2011 to June 28 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 30.7 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 33.7 °C

Event center: 12.5°N 27.0°E

Area affected: 112091 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-25_to_2011-Jun-28_27.0_12.5

Cold spell occuring from June 24 2011 to July 02 2011 at 26.5°N 11.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Egypt
  • Libya
  • Niger
  • Tunisia

Duration: 9 days

Time span: June 24 2011 to July 02 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 28.0 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 22.0 °C

Event center: 26.5°N 11.5°E

Area affected: 1694019 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-24_to_2011-Jul-02_11.5_26.5

Heat wave occuring from June 13 2011 to June 19 2011 at 17.5°N 15.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger
  • Nigeria

Duration: 7 days

Time span: June 13 2011 to June 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 36.1 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 39.3 °C

Event center: 17.5°N 15.0°E

Area affected: 463145 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-13_to_2011-Jun-19_15.0_17.5

Heat wave occuring from June 13 2011 to June 23 2011 at 10.0°N 23.5°E

Download data: JSON

Event type: Heat wave

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

  • Central African Republic
  • Chad
  • Congo DRC
  • South Sudan
  • Sudan

Duration: 11 days

Time span: June 13 2011 to June 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 33.3 °C

Event center: 10.0°N 23.5°E

Area affected: 877052 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-13_to_2011-Jun-23_23.5_10.0

Heat wave occuring from June 11 2011 to June 21 2011 at 16.0°N 21.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Libya
  • Sudan

Duration: 11 days

Time span: June 11 2011 to June 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 33.7 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 38.3 °C

Event center: 16.0°N 21.5°E

Area affected: 330966 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-11_to_2011-Jun-21_21.5_16.0

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 07 2011 at -3.5°S 17.0°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Central African Republic
  • Chad
  • Congo
  • Congo DRC
  • Gabon
  • Nigeria
  • South Sudan
  • Sudan

Duration: 9 days

Time span: May 30 2011 to June 07 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.1 °C
  • Mean temperature: 27.7 °C
  • Maximum temperature anomaly: 4.8 °C
  • Maximum temperature: 36.1 °C

Event center: -3.5°S 17.0°E

Area affected: 1986709 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-07_17.0_-3.5

Cold spell occuring from May 25 2011 to May 29 2011 at 13.5°N 14.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: May 25 2011 to May 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 30.9 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 28.9 °C

Event center: 13.5°N 14.0°E

Area affected: 51150 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-May-25_to_2011-May-29_14.0_13.5

Heat wave occuring from May 07 2011 to May 10 2011 at 15.5°N 20.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad

Duration: 4 days

Time span: May 07 2011 to May 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 36.3 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 37.6 °C

Event center: 15.5°N 20.0°E

Area affected: 53581 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-07_to_2011-May-10_20.0_15.5