Category: Extremes affecting Australia

Heat wave occuring from March 26 2023 to April 01 2023 at -27.0°S 156.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 7 days

Time span: March 26 2023 to April 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 25.3 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 27.2 °C

Event center: -27.0°S 156.0°E

Area affected: 342318 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_2023-Mar-26_to_2023-Apr-01_156.0_-27.0

Cold spell occuring from March 24 2023 to March 27 2023 at -55.0°S 151.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 4 days

Time span: March 24 2023 to March 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 3.4 °C
  • Minimum temperature anomaly: -3.7 °C
  • Minimum temperature: 1.2 °C

Event center: -55.0°S 151.5°E

Area affected: 492731 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_2023-Mar-24_to_2023-Mar-27_151.5_-55.0

Heat wave occuring from March 12 2023 to April 27 2023 at -16.5°S 145.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia
  • Indonesia
  • New Caledonia
  • Papua New Guinea
  • Solomon Islands
  • Vanuatu

Duration: 47 days

Time span: March 12 2023 to April 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 4.9 °C
  • Maximum temperature: 30.0 °C

Event center: -16.5°S 145.5°E

Area affected: 7885624 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_2023-Mar-12_to_2023-Apr-27_145.5_-16.5

Cold spell occuring from March 06 2023 to March 09 2023 at -28.0°S 137.5°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 4 days

Time span: March 06 2023 to March 09 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: 21.9 °C
  • Minimum temperature anomaly: -5.9 °C
  • Minimum temperature: 17.6 °C

Event center: -28.0°S 137.5°E

Area affected: 126321 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_2023-Mar-06_to_2023-Mar-09_137.5_-28.0

Heat wave occuring from March 04 2023 to March 28 2023 at -28.5°S 155.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia
  • Indonesia
  • Papua New Guinea
  • Solomon Islands

Duration: 25 days

Time span: March 04 2023 to March 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 28.9 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 37.1 °C

Event center: -28.5°S 155.5°E

Area affected: 6639280 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_2023-Mar-04_to_2023-Mar-28_155.5_-28.5

Heat wave occuring from March 03 2023 to March 07 2023 at -27.5°S 145.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 5 days

Time span: March 03 2023 to March 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.0 °C
  • Mean temperature: 31.6 °C
  • Maximum temperature anomaly: 7.4 °C
  • Maximum temperature: 33.9 °C

Event center: -27.5°S 145.5°E

Area affected: 195915 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_2023-Mar-03_to_2023-Mar-07_145.5_-27.5

Heat wave occuring from February 25 2023 to March 02 2023 at -29.5°S 111.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 6 days

Time span: February 25 2023 to March 02 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 23.4 °C
  • Maximum temperature anomaly: 4.2 °C
  • Maximum temperature: 31.2 °C

Event center: -29.5°S 111.5°E

Area affected: 293159 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_2023-Feb-25_to_2023-Mar-02_111.5_-29.5

Heat wave occuring from February 22 2023 to May 10 2023 at -49.0°S 194.5°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica
  • Australia
  • New Zealand

Duration: 78 days

Time span: February 22 2023 to May 10 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.4 °C
  • Mean temperature: -16.0 °C
  • Maximum temperature anomaly: 27.1 °C
  • Maximum temperature: 29.0 °C

Event center: -49.0°S 194.5°E

Area affected: 27226859 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_2023-Feb-22_to_2023-May-10_194.5_-49.0

Cold spell occuring from February 20 2023 to February 24 2023 at -22.0°S 149.0°E

Download data: JSON

Event type: Cold spell

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

  • Australia

Duration: 5 days

Time span: February 20 2023 to February 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 24.1 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 20.5 °C

Event center: -22.0°S 149.0°E

Area affected: 80228 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_2023-Feb-20_to_2023-Feb-24_149.0_-22.0

Heat wave occuring from February 18 2023 to February 21 2023 at -29.0°S 120.0°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 4 days

Time span: February 18 2023 to February 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: 34.0 °C
  • Maximum temperature anomaly: 10.2 °C
  • Maximum temperature: 36.8 °C

Event center: -29.0°S 120.0°E

Area affected: 128920 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_2023-Feb-18_to_2023-Feb-21_120.0_-29.0