Category: Extremes affecting Chad

Cold spell occuring from March 20 2023 to April 05 2023 at 9.0°N 9.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Central African Republic
  • Chad
  • Nigeria

Duration: 17 days

Time span: March 20 2023 to April 05 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 27.9 °C
  • Minimum temperature anomaly: -7.5 °C
  • Minimum temperature: 19.2 °C

Event center: 9.0°N 9.5°E

Area affected: 456583 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_2023-Mar-20_to_2023-Apr-05_9.5_9.0

Heat wave occuring from March 18 2023 to March 23 2023 at 16.5°N 19.0°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 6 days

Time span: March 18 2023 to March 23 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 30.6 °C
  • Maximum temperature anomaly: 5.6 °C
  • Maximum temperature: 32.2 °C

Event center: 16.5°N 19.0°E

Area affected: 159777 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_2023-Mar-18_to_2023-Mar-23_19.0_16.5

Cold spell occuring from February 12 2023 to February 22 2023 at 8.0°N 8.0°E

Download data: JSON

Event type: Cold spell

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

  • Benin
  • Burkina Faso
  • Cameroon
  • Central African Republic
  • Chad
  • Egypt
  • Ghana
  • Libya
  • Niger
  • Nigeria
  • South Sudan
  • Sudan
  • Togo

Duration: 11 days

Time span: February 12 2023 to February 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 17.9 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 4.0 °C

Event center: 8.0°N 8.0°E

Area affected: 3176562 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_2023-Feb-12_to_2023-Feb-22_8.0_8.0

Heat wave occuring from December 30 2022 to January 10 2023 at 5.5°N 23.5°E

Download data: JSON

Event type: Heat wave

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

  • Burundi
  • Central African Republic
  • Chad
  • Congo
  • Congo, The Democratic Republic of the
  • Rwanda
  • Tanzania, United Republic of
  • Zambia

Duration: 12 days

Time span: December 30 2022 to January 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 30.9 °C

Event center: 5.5°N 23.5°E

Area affected: 1170330 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_2022-Dec-30_to_2023-Jan-10_23.5_5.5

Cold spell occuring from December 20 2022 to December 31 2022 at 9.5°N 18.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Central African Republic
  • Chad
  • Eritrea
  • Ethiopia
  • South Sudan
  • Sudan

Duration: 12 days

Time span: December 20 2022 to December 31 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 12.9 °C

Event center: 9.5°N 18.0°E

Area affected: 1172101 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_2022-Dec-20_to_2022-Dec-31_18.0_9.5

Heat wave occuring from December 02 2022 to December 06 2022 at 16.5°N 17.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 5 days

Time span: December 02 2022 to December 06 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 25.5 °C
  • Maximum temperature anomaly: 4.9 °C
  • Maximum temperature: 27.5 °C

Event center: 16.5°N 17.5°E

Area affected: 106005 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_2022-Dec-02_to_2022-Dec-06_17.5_16.5

Cold spell occuring from November 03 2022 to November 06 2022 at 12.0°N 17.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad

Duration: 4 days

Time span: November 03 2022 to November 06 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 26.5 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 25.4 °C

Event center: 12.0°N 17.0°E

Area affected: 60827 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_2022-Nov-03_to_2022-Nov-06_17.0_12.0

Cold spell occuring from October 26 2022 to November 08 2022 at 13.0°N 9.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 14 days

Time span: October 26 2022 to November 08 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 24.0 °C
  • Minimum temperature anomaly: -4.2 °C
  • Minimum temperature: 18.3 °C

Event center: 13.0°N 9.5°E

Area affected: 561985 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_2022-Oct-26_to_2022-Nov-08_9.5_13.0

Cold spell occuring from October 24 2022 to October 30 2022 at 21.0°N 17.5°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Libya
  • Niger

Duration: 7 days

Time span: October 24 2022 to October 30 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 19.0 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 12.8 °C

Event center: 21.0°N 17.5°E

Area affected: 141624 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_2022-Oct-24_to_2022-Oct-30_17.5_21.0

Cold spell occuring from October 17 2022 to October 26 2022 at 19.0°N 9.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Libya
  • Mali
  • Niger

Duration: 10 days

Time span: October 17 2022 to October 26 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 22.6 °C
  • Minimum temperature anomaly: -5.6 °C
  • Minimum temperature: 16.3 °C

Event center: 19.0°N 9.0°E

Area affected: 1239488 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_2022-Oct-17_to_2022-Oct-26_9.0_19.0