Category: Weather Extremes – all events

Heat wave occuring from April 18 2020 to April 23 2020 at -28.0°S 21.5°E

Download data: JSON

Event type: Heat wave

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

  • Botswana
  • Namibia
  • South Africa

Duration: 6 days

Time span: April 18 2020 to April 23 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 23.7 °C
  • Maximum temperature anomaly: 8.6 °C
  • Maximum temperature: 28.8 °C

Event center: -28.0°S 21.5°E

Area affected: 328294 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_2020-Apr-18_to_2020-Apr-23_21.5_-28.0

Cold spell occuring from April 18 2020 to April 26 2020 at 2.5°N 36.5°E

Download data: JSON

Event type: Cold spell

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

  • Ethiopia
  • Kenya
  • South Sudan
  • Uganda

Duration: 9 days

Time span: April 18 2020 to April 26 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 23.5 °C
  • Minimum temperature anomaly: -4.8 °C
  • Minimum temperature: 16.0 °C

Event center: 2.5°N 36.5°E

Area affected: 154309 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_2020-Apr-18_to_2020-Apr-26_36.5_2.5

Cold spell occuring from April 18 2020 to April 25 2020 at -2.5°S 36.0°E

Download data: JSON

Event type: Cold spell

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

  • Kenya
  • Tanzania, United Republic of
  • Uganda

Duration: 8 days

Time span: April 18 2020 to April 25 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 20.5 °C
  • Minimum temperature anomaly: -4.8 °C
  • Minimum temperature: 14.5 °C

Event center: -2.5°S 36.0°E

Area affected: 188184 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_2020-Apr-18_to_2020-Apr-25_36.0_-2.5

Cold spell occuring from April 18 2020 to May 14 2020 at -16.0°S 315.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 27 days

Time span: April 18 2020 to May 14 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 20.9 °C
  • Minimum temperature anomaly: -5.8 °C
  • Minimum temperature: 13.4 °C

Event center: -16.0°S 315.0°E

Area affected: 1399676 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_2020-Apr-18_to_2020-May-14_315.0_-16.0

Cold spell occuring from April 17 2020 to April 26 2020 at 57.0°N 276.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 10 days

Time span: April 17 2020 to April 26 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -12.9 °C
  • Minimum temperature anomaly: -14.2 °C
  • Minimum temperature: -27.8 °C

Event center: 57.0°N 276.5°E

Area affected: 3691678 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_2020-Apr-17_to_2020-Apr-26_276.5_57.0

Heat wave occuring from April 17 2020 to April 19 2020 at -38.0°S 178.5°E

Download data: JSON

Event type: Heat wave

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

  • New Zealand

Duration: 3 days

Time span: April 17 2020 to April 19 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 18.3 °C
  • Maximum temperature anomaly: 5.1 °C
  • Maximum temperature: 19.2 °C

Event center: -38.0°S 178.5°E

Area affected: 64925 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_2020-Apr-17_to_2020-Apr-19_178.5_-38.0

Heat wave occuring from April 17 2020 to April 20 2020 at -3.5°S 152.5°E

Download data: JSON

Event type: Heat wave

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

  • Papua New Guinea

Duration: 4 days

Time span: April 17 2020 to April 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 28.1 °C
  • Maximum temperature anomaly: 1.9 °C
  • Maximum temperature: 29.1 °C

Event center: -3.5°S 152.5°E

Area affected: 98691 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_2020-Apr-17_to_2020-Apr-20_152.5_-3.5

Cold spell occuring from April 16 2020 to April 21 2020 at 48.0°N 294.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 6 days

Time span: April 16 2020 to April 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: -2.2 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: -6.9 °C

Event center: 48.0°N 294.5°E

Area affected: 130304 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_2020-Apr-16_to_2020-Apr-21_294.5_48.0

Heat wave occuring from April 16 2020 to April 21 2020 at 45.5°N 59.5°E

Download data: JSON

Event type: Heat wave

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

  • Kazakhstan
  • Turkmenistan
  • Uzbekistan

Duration: 6 days

Time span: April 16 2020 to April 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.3 °C
  • Mean temperature: 20.1 °C
  • Maximum temperature anomaly: 10.3 °C
  • Maximum temperature: 25.1 °C

Event center: 45.5°N 59.5°E

Area affected: 99029 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_2020-Apr-16_to_2020-Apr-21_59.5_45.5

Heat wave occuring from April 16 2020 to April 25 2020 at 46.5°N 7.5°E

Download data: JSON

Event type: Heat wave

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

  • Austria
  • Bosnia and Herzegovina
  • Croatia
  • France
  • Germany
  • Hungary
  • Italy
  • Montenegro
  • Serbia
  • Slovenia
  • Switzerland

Duration: 10 days

Time span: April 16 2020 to April 25 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.8 °C
  • Mean temperature: 11.5 °C
  • Maximum temperature anomaly: 8.3 °C
  • Maximum temperature: 18.9 °C

Event center: 46.5°N 7.5°E

Area affected: 161788 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_2020-Apr-16_to_2020-Apr-25_7.5_46.5