Category: Weather Extremes – all events

Cold spell occuring from July 18 2020 to July 29 2020 at -24.5°S 57.5°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar
  • Réunion

Duration: 12 days

Time span: July 18 2020 to July 29 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 14.3 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: -0.1 °C

Event center: -24.5°S 57.5°E

Area affected: 4909589 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-Jul-18_to_2020-Jul-29_57.5_-24.5

Cold spell occuring from July 18 2020 to July 24 2020 at 40.5°N 84.5°E

Download data: JSON

Event type: Cold spell

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

  • China

Duration: 7 days

Time span: July 18 2020 to July 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 23.6 °C
  • Minimum temperature anomaly: -11.3 °C
  • Minimum temperature: 16.3 °C

Event center: 40.5°N 84.5°E

Area affected: 201186 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-Jul-18_to_2020-Jul-24_84.5_40.5

Cold spell occuring from July 18 2020 to July 26 2020 at 22.5°N 277.0°E

Download data: JSON

Event type: Cold spell

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

  • Cuba

Duration: 9 days

Time span: July 18 2020 to July 26 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 26.9 °C
  • Minimum temperature anomaly: -2.8 °C
  • Minimum temperature: 24.8 °C

Event center: 22.5°N 277.0°E

Area affected: 225601 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-Jul-18_to_2020-Jul-26_277.0_22.5

Cold spell occuring from July 18 2020 to July 23 2020 at 67.0°N 224.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 6 days

Time span: July 18 2020 to July 23 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: 7.4 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 2.4 °C

Event center: 67.0°N 224.0°E

Area affected: 92905 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-Jul-18_to_2020-Jul-23_224.0_67.0

Cold spell occuring from July 18 2020 to July 20 2020 at 43.5°N 23.5°E

Download data: JSON

Event type: Cold spell

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

  • Bulgaria
  • Romania
  • Serbia

Duration: 3 days

Time span: July 18 2020 to July 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 18.2 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: 13.4 °C

Event center: 43.5°N 23.5°E

Area affected: 55809 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-Jul-18_to_2020-Jul-20_23.5_43.5

Cold spell occuring from July 18 2020 to July 20 2020 at 52.5°N 348.5°E

Download data: JSON

Event type: Cold spell

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

  • Ireland
  • United Kingdom

Duration: 3 days

Time span: July 18 2020 to July 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 13.1 °C
  • Minimum temperature anomaly: -2.9 °C
  • Minimum temperature: 12.0 °C

Event center: 52.5°N 348.5°E

Area affected: 75215 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-Jul-18_to_2020-Jul-20_348.5_52.5

Cold spell occuring from July 18 2020 to August 14 2020 at 14.5°N 40.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Djibouti
  • Eritrea
  • Ethiopia
  • Oman
  • Saudi Arabia
  • Somalia
  • South Sudan
  • Sudan
  • Yemen

Duration: 28 days

Time span: July 18 2020 to August 14 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 26.7 °C
  • Minimum temperature anomaly: -9.3 °C
  • Minimum temperature: 10.6 °C

Event center: 14.5°N 40.0°E

Area affected: 3185756 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-Jul-18_to_2020-Aug-14_40.0_14.5

Heat wave occuring from July 18 2020 to July 22 2020 at 37.5°N 49.0°E

Download data: JSON

Event type: Heat wave

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

  • Armenia
  • Azerbaijan
  • Georgia
  • Iran, Islamic Republic of
  • Iraq
  • Türkiye

Duration: 5 days

Time span: July 18 2020 to July 22 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 7.7 °C
  • Maximum temperature: 33.4 °C

Event center: 37.5°N 49.0°E

Area affected: 281208 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-Jul-18_to_2020-Jul-22_49.0_37.5

Heat wave occuring from July 18 2020 to July 24 2020 at 23.5°N 3.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Chad
  • Libya
  • Niger

Duration: 7 days

Time span: July 18 2020 to July 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 35.2 °C
  • Maximum temperature anomaly: 4.6 °C
  • Maximum temperature: 39.0 °C

Event center: 23.5°N 3.5°E

Area affected: 457590 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-Jul-18_to_2020-Jul-24_3.5_23.5

Heat wave occuring from July 17 2020 to July 19 2020 at -74.5°S 256.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 3 days

Time span: July 17 2020 to July 19 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.7 °C
  • Mean temperature: -1.6 °C
  • Maximum temperature anomaly: 15.4 °C
  • Maximum temperature: 2.4 °C

Event center: -74.5°S 256.0°E

Area affected: 384097 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-Jul-17_to_2020-Jul-19_256.0_-74.5