Cold spell occuring from September 15 2011 to September 19 2011 at -2.0°S 33.5°E

Download data: JSON

Event type: Cold spell

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

  • Burundi
  • Congo DRC
  • Kenya
  • Rwanda
  • Tanzania
  • Uganda

Duration: 5 days

Time span: September 15 2011 to September 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 21.1 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 14.3 °C

Event center: -2.0°S 33.5°E

Area affected: 203724 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-15_to_2011-Sep-19_33.5_-2.0

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 11 2011 to August 20 2011 at -1.5°S 35.0°E

Download data: JSON

Event type: Cold spell

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

  • Burundi
  • Congo DRC
  • Kenya
  • Rwanda
  • Tanzania
  • Uganda

Duration: 10 days

Time span: August 11 2011 to August 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -3.9 °C
  • Minimum temperature: 12.9 °C

Event center: -1.5°S 35.0°E

Area affected: 216254 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-11_to_2011-Aug-20_35.0_-1.5

Cold spell occuring from August 07 2011 to August 12 2011 at 5.0°N 36.5°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Kenya

Duration: 6 days

Time span: August 07 2011 to August 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -4.8 °C
  • Minimum temperature: 12.4 °C

Event center: 5.0°N 36.5°E

Area affected: 83003 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-07_to_2011-Aug-12_36.5_5.0

Heat wave occuring from July 31 2011 to August 03 2011 at -4.5°S 40.5°E

Download data: JSON

Event type: Heat wave

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

  • Kenya

Duration: 4 days

Time span: July 31 2011 to August 03 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 0.7 °C
  • Mean temperature: 25.2 °C
  • Maximum temperature anomaly: 1.2 °C
  • Maximum temperature: 25.7 °C

Event center: -4.5°S 40.5°E

Area affected: 67694 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-31_to_2011-Aug-03_40.5_-4.5

Heat wave occuring from July 23 2011 to August 03 2011 at -3.5°S 36.0°E

Download data: JSON

Event type: Heat wave

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

  • Kenya
  • Tanzania

Duration: 12 days

Time span: July 23 2011 to August 03 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.8 °C
  • Mean temperature: 22.4 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 27.9 °C

Event center: -3.5°S 36.0°E

Area affected: 227990 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-23_to_2011-Aug-03_36.0_-3.5

Heat wave occuring from June 15 2011 to June 18 2011 at 4.5°N 32.5°E

Download data: JSON

Event type: Heat wave

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

  • Kenya
  • South Sudan
  • Uganda

Duration: 4 days

Time span: June 15 2011 to June 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 23.6 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 28.0 °C

Event center: 4.5°N 32.5°E

Area affected: 101905 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-15_to_2011-Jun-18_32.5_4.5

Heat wave occuring from May 20 2011 to September 18 2011 at 4.5°N 49.0°E

Download data: JSON

Event type: Heat wave

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

  • Afghanistan
  • Armenia
  • Azerbaijan
  • Belarus
  • China
  • Egypt
  • Estonia
  • Ethiopia
  • Finland
  • Georgia
  • Iran
  • Iraq
  • Jordan
  • Kazakhstan
  • Kenya
  • Kyrgyzstan
  • Latvia
  • Lithuania
  • Oman
  • Pakistan
  • Russian Federation
  • Saudi Arabia
  • Somalia
  • South Sudan
  • Syria
  • Tajikistan
  • Tanzania
  • Turkiye
  • Turkmenistan
  • Uganda
  • Ukraine
  • United Arab Emirates
  • Uzbekistan
  • Yemen

Duration: 122 days

Time span: May 20 2011 to September 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 27.8 °C
  • Maximum temperature anomaly: 10.7 °C
  • Maximum temperature: 44.6 °C

Event center: 4.5°N 49.0°E

Area affected: 17804972 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-20_to_2011-Sep-18_49.0_4.5

Heat wave occuring from May 10 2011 to May 18 2011 at 3.5°N 41.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya
  • Somalia

Duration: 9 days

Time span: May 10 2011 to May 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 28.8 °C
  • Maximum temperature anomaly: 3.3 °C
  • Maximum temperature: 32.4 °C

Event center: 3.5°N 41.0°E

Area affected: 89439 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-10_to_2011-May-18_41.0_3.5