Category: Extremes affecting Nigeria

Heat wave occuring from August 09 2011 to August 12 2011 at 12.5°N 2.5°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Burkina Faso
  • Niger
  • Nigeria

Duration: 4 days

Time span: August 09 2011 to August 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 29.3 °C
  • Maximum temperature anomaly: 3.1 °C
  • Maximum temperature: 30.6 °C

Event center: 12.5°N 2.5°E

Area affected: 81383 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-09_to_2011-Aug-12_2.5_12.5

Heat wave occuring from August 08 2011 to August 12 2011 at 12.0°N 12.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: August 08 2011 to August 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 32.2 °C
  • Maximum temperature anomaly: 4.7 °C
  • Maximum temperature: 36.2 °C

Event center: 12.0°N 12.5°E

Area affected: 356230 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-08_to_2011-Aug-12_12.5_12.0

Cold spell occuring from July 25 2011 to July 29 2011 at 4.0°N 9.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Nigeria

Duration: 5 days

Time span: July 25 2011 to July 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.2 °C
  • Mean temperature: 22.4 °C
  • Minimum temperature anomaly: -1.9 °C
  • Minimum temperature: 20.2 °C

Event center: 4.0°N 9.5°E

Area affected: 61637 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-25_to_2011-Jul-29_9.5_4.0

Heat wave occuring from July 18 2011 to July 24 2011 at 9.5°N 14.5°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Chad
  • Nigeria

Duration: 7 days

Time span: July 18 2011 to July 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 28.0 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 30.4 °C

Event center: 9.5°N 14.5°E

Area affected: 100561 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-18_to_2011-Jul-24_14.5_9.5

Heat wave occuring from July 17 2011 to July 19 2011 at 12.0°N 11.0°E

Download data: JSON

Event type: Heat wave

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

  • Niger
  • Nigeria

Duration: 3 days

Time span: July 17 2011 to July 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 30.6 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 33.2 °C

Event center: 12.0°N 11.0°E

Area affected: 51293 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-17_to_2011-Jul-19_11.0_12.0

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

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 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