Category: Extremes affecting Ethiopia

Heat wave occuring from October 23 2011 to November 14 2011 at 11.5°N 49.5°E

Download data: JSON

Event type: Heat wave

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

  • Djibouti
  • Ethiopia
  • Mozambique
  • Somalia
  • Tanzania
  • Yemen

Duration: 23 days

Time span: October 23 2011 to November 14 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 26.9 °C
  • Maximum temperature anomaly: 5.4 °C
  • Maximum temperature: 32.2 °C

Event center: 11.5°N 49.5°E

Area affected: 2247325 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-Oct-23_to_2011-Nov-14_49.5_11.5

Cold spell occuring from October 22 2011 to October 27 2011 at 6.5°N 48.5°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Somalia

Duration: 6 days

Time span: October 22 2011 to October 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -3.6 °C
  • Minimum temperature: 21.6 °C

Event center: 6.5°N 48.5°E

Area affected: 95162 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-Oct-22_to_2011-Oct-27_48.5_6.5

Cold spell occuring from October 16 2011 to October 27 2011 at 14.0°N 39.5°E

Download data: JSON

Event type: Cold spell

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

  • Eritrea
  • Ethiopia

Duration: 12 days

Time span: October 16 2011 to October 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 16.6 °C
  • Minimum temperature anomaly: -2.5 °C
  • Minimum temperature: 10.9 °C

Event center: 14.0°N 39.5°E

Area affected: 72548 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-Oct-16_to_2011-Oct-27_39.5_14.0

Cold spell occuring from October 07 2011 to October 21 2011 at 0.5°N 41.0°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Kenya
  • Somalia
  • Tanzania

Duration: 15 days

Time span: October 07 2011 to October 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 24.1 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: 14.3 °C

Event center: 0.5°N 41.0°E

Area affected: 1155383 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-Oct-07_to_2011-Oct-21_41.0_0.5

Heat wave occuring from October 04 2011 to October 06 2011 at 2.0°N 42.5°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya
  • Somalia

Duration: 3 days

Time span: October 04 2011 to October 06 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.2 °C
  • Mean temperature: 29.4 °C
  • Maximum temperature anomaly: 1.8 °C
  • Maximum temperature: 31.5 °C

Event center: 2.0°N 42.5°E

Area affected: 52468 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-Oct-04_to_2011-Oct-06_42.5_2.0

Cold spell occuring from September 17 2011 to September 30 2011 at 12.5°N 39.0°E

Download data: JSON

Event type: Cold spell

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

  • Eritrea
  • Ethiopia

Duration: 14 days

Time span: September 17 2011 to September 30 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 23.3 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 11.3 °C

Event center: 12.5°N 39.0°E

Area affected: 199213 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-Sep-17_to_2011-Sep-30_39.0_12.5

Heat wave occuring from September 15 2011 to October 16 2011 at -7.0°S 48.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya
  • Somalia
  • Tanzania

Duration: 32 days

Time span: September 15 2011 to October 16 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 33.3 °C

Event center: -7.0°S 48.0°E

Area affected: 2856056 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-Sep-15_to_2011-Oct-16_48.0_-7.0

Cold spell occuring from September 01 2011 to September 21 2011 at 5.5°N 35.5°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Kenya
  • South Sudan
  • Sudan
  • Uganda

Duration: 21 days

Time span: September 01 2011 to September 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 22.1 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 11.6 °C

Event center: 5.5°N 35.5°E

Area affected: 461149 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-Sep-01_to_2011-Sep-21_35.5_5.5

Heat wave occuring from August 13 2011 to August 17 2011 at 3.5°N 37.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya

Duration: 5 days

Time span: August 13 2011 to August 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 30.7 °C

Event center: 3.5°N 37.0°E

Area affected: 58643 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-13_to_2011-Aug-17_37.0_3.5

Cold spell occuring from August 09 2011 to August 18 2011 at 11.0°N 43.0°E

Download data: JSON

Event type: Cold spell

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

  • Djibouti
  • Ethiopia
  • Somalia

Duration: 10 days

Time span: August 09 2011 to August 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 27.5 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 22.3 °C

Event center: 11.0°N 43.0°E

Area affected: 75810 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-09_to_2011-Aug-18_43.0_11.0