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 August 16 2011 to August 22 2011 at -11.0°S 38.0°E

Download data: JSON

Event type: Cold spell

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

  • Mozambique
  • Tanzania

Duration: 7 days

Time span: August 16 2011 to August 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 21.3 °C
  • Minimum temperature anomaly: -2.6 °C
  • Minimum temperature: 18.0 °C

Event center: -11.0°S 38.0°E

Area affected: 106260 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-16_to_2011-Aug-22_38.0_-11.0

Cold spell occuring from August 13 2011 to August 26 2011 at -16.0°S 15.5°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Congo DRC
  • Eswatini
  • Lesotho
  • Malawi
  • Mozambique
  • Namibia
  • South Africa
  • Tanzania
  • Zambia
  • Zimbabwe

Duration: 14 days

Time span: August 13 2011 to August 26 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 16.8 °C
  • Minimum temperature anomaly: -11.2 °C
  • Minimum temperature: -6.1 °C

Event center: -16.0°S 15.5°E

Area affected: 4282905 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-13_to_2011-Aug-26_15.5_-16.0

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 July 05 2011 to July 22 2011 at -25.0°S 34.5°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Congo DRC
  • Malawi
  • Mozambique
  • South Africa
  • Tanzania
  • Zambia
  • Zimbabwe

Duration: 18 days

Time span: July 05 2011 to July 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 17.1 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 8.0 °C

Event center: -25.0°S 34.5°E

Area affected: 2240506 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-05_to_2011-Jul-22_34.5_-25.0

Cold spell occuring from March 19 2011 to March 23 2011 at 0.5°N 31.5°E

Download data: JSON

Event type: Cold spell

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

  • Tanzania
  • Uganda

Duration: 5 days

Time span: March 19 2011 to March 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -3.5 °C
  • Minimum temperature: 19.0 °C

Event center: 0.5°N 31.5°E

Area affected: 71076 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-Mar-19_to_2011-Mar-23_31.5_0.5

Cold spell occuring from March 18 2011 to March 23 2011 at -8.0°S 32.0°E

Download data: JSON

Event type: Cold spell

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

  • Congo DRC
  • Tanzania
  • Zambia

Duration: 6 days

Time span: March 18 2011 to March 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -2.9 °C
  • Minimum temperature: 17.5 °C

Event center: -8.0°S 32.0°E

Area affected: 106565 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-Mar-18_to_2011-Mar-23_32.0_-8.0

Cold spell occuring from March 15 2011 to March 23 2011 at 1.5°N 34.5°E

Download data: JSON

Event type: Cold spell

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

  • Kenya
  • South Sudan
  • Tanzania
  • Uganda

Duration: 9 days

Time span: March 15 2011 to March 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 13.3 °C

Event center: 1.5°N 34.5°E

Area affected: 370259 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-Mar-15_to_2011-Mar-23_34.5_1.5

Cold spell occuring from February 08 2011 to February 13 2011 at -11.5°S 35.0°E

Download data: JSON

Event type: Cold spell

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

  • Malawi
  • Mozambique
  • Tanzania

Duration: 6 days

Time span: February 08 2011 to February 13 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 22.6 °C
  • Minimum temperature anomaly: -2.2 °C
  • Minimum temperature: 19.4 °C

Event center: -11.5°S 35.0°E

Area affected: 54326 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-Feb-08_to_2011-Feb-13_35.0_-11.5

Cold spell occuring from January 18 2011 to January 21 2011 at -6.5°S 25.0°E

Download data: JSON

Event type: Cold spell

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

  • Congo DRC
  • Tanzania

Duration: 4 days

Time span: January 18 2011 to January 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 21.6 °C
  • Minimum temperature anomaly: -3.6 °C
  • Minimum temperature: 18.2 °C

Event center: -6.5°S 25.0°E

Area affected: 230748 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-Jan-18_to_2011-Jan-21_25.0_-6.5