Category: Extremes affecting Botswana

Heat wave occuring from May 12 2011 to May 23 2011 at -26.0°S 32.0°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Eswatini
  • Malawi
  • Mozambique
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 12 days

Time span: May 12 2011 to May 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 23.9 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 27.7 °C

Event center: -26.0°S 32.0°E

Area affected: 1300601 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-12_to_2011-May-23_32.0_-26.0

Cold spell occuring from May 03 2011 to May 07 2011 at -16.5°S 26.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Mozambique
  • Zambia
  • Zimbabwe

Duration: 5 days

Time span: May 03 2011 to May 07 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 18.3 °C
  • Minimum temperature anomaly: -3.4 °C
  • Minimum temperature: 15.0 °C

Event center: -16.5°S 26.0°E

Area affected: 242915 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-May-03_to_2011-May-07_26.0_-16.5

Cold spell occuring from April 22 2011 to May 19 2011 at -27.5°S 13.5°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Lesotho
  • Namibia
  • South Africa

Duration: 28 days

Time span: April 22 2011 to May 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 14.2 °C
  • Minimum temperature anomaly: -9.9 °C
  • Minimum temperature: 0.0 °C

Event center: -27.5°S 13.5°E

Area affected: 7116561 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-Apr-22_to_2011-May-19_13.5_-27.5

Cold spell occuring from April 15 2011 to April 25 2011 at -22.0°S 17.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Namibia

Duration: 11 days

Time span: April 15 2011 to April 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 19.1 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: 13.4 °C

Event center: -22.0°S 17.0°E

Area affected: 497843 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-Apr-15_to_2011-Apr-25_17.0_-22.0

Heat wave occuring from March 27 2011 to March 31 2011 at -28.5°S 20.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Namibia
  • South Africa

Duration: 5 days

Time span: March 27 2011 to March 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 8.1 °C
  • Maximum temperature: 30.6 °C

Event center: -28.5°S 20.5°E

Area affected: 281534 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-Mar-27_to_2011-Mar-31_20.5_-28.5

Heat wave occuring from March 18 2011 to March 31 2011 at -20.5°S 33.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Eswatini
  • Malawi
  • Mozambique
  • South Africa
  • Zimbabwe

Duration: 14 days

Time span: March 18 2011 to March 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 32.4 °C

Event center: -20.5°S 33.5°E

Area affected: 1295719 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-Mar-18_to_2011-Mar-31_33.5_-20.5

Cold spell occuring from February 25 2011 to March 14 2011 at -20.5°S 18.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Namibia
  • Zambia

Duration: 18 days

Time span: February 25 2011 to March 14 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 16.1 °C

Event center: -20.5°S 18.0°E

Area affected: 884839 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-25_to_2011-Mar-14_18.0_-20.5

Cold spell occuring from January 31 2011 to February 06 2011 at -26.0°S 27.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • South Africa
  • Zimbabwe

Duration: 7 days

Time span: January 31 2011 to February 06 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 20.5 °C
  • Minimum temperature anomaly: -5.9 °C
  • Minimum temperature: 15.5 °C

Event center: -26.0°S 27.0°E

Area affected: 440880 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-31_to_2011-Feb-06_27.0_-26.0

Cold spell occuring from January 27 2011 to February 01 2011 at -17.0°S 27.0°E

Download data: JSON

Event type: Cold spell

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

  • Botswana
  • Mozambique
  • South Africa
  • Zambia
  • Zimbabwe

Duration: 6 days

Time span: January 27 2011 to February 01 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 21.1 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 16.8 °C

Event center: -17.0°S 27.0°E

Area affected: 397224 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-27_to_2011-Feb-01_27.0_-17.0

Cold spell occuring from January 14 2011 to February 11 2011 at -22.5°S 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Botswana
  • Namibia

Duration: 29 days

Time span: January 14 2011 to February 11 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: 15.5 °C

Event center: -22.5°S 16.0°E

Area affected: 685273 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-14_to_2011-Feb-11_16.0_-22.5