Category: Heat waves affecting New Zealand

Download data: JSON

Event type: Heat wave

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

• New Zealand

Duration: 6 days

Time span: April 07 2023 to April 12 2023

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 12.6 °C
• Maximum temperature anomaly: 3.7 °C
• Maximum temperature: 15.5 °C

Event center: -48.0°S 175.5°E

Area affected: 433729 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-Apr-07_to_2023-Apr-12_175.5_-48.0

Download data: JSON

Event type: Heat wave

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

• New Zealand

Duration: 4 days

Time span: July 17 2022 to July 20 2022

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 12.2 °C
• Maximum temperature anomaly: 8.0 °C
• Maximum temperature: 16.5 °C

Event center: -46.5°S 181.0°E

Area affected: 884082 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_2022-Jul-17_to_2022-Jul-20_181.0_-46.5

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 09 2022 to April 11 2022

Statistics over entire affected area:

• Mean temperature anomaly: 2.0 °C
• Mean temperature: 12.6 °C
• Maximum temperature anomaly: 2.9 °C
• Maximum temperature: 14.2 °C

Event center: -46.5°S 172.0°E

Area affected: 83577 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_2022-Apr-09_to_2022-Apr-11_172.0_-46.5

Download data: JSON

Event type: Heat wave

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

• New Zealand

Duration: 4 days

Time span: April 09 2022 to April 12 2022

Statistics over entire affected area:

• Mean temperature anomaly: 1.8 °C
• Mean temperature: 19.8 °C
• Maximum temperature anomaly: 2.5 °C
• Maximum temperature: 20.9 °C

Event center: -34.5°S 171.0°E

Area affected: 64976 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_2022-Apr-09_to_2022-Apr-12_171.0_-34.5

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: March 28 2022 to March 30 2022

Statistics over entire affected area:

• Mean temperature anomaly: 2.7 °C
• Mean temperature: 14.8 °C
• Maximum temperature anomaly: 3.8 °C
• Maximum temperature: 17.1 °C

Event center: -47.5°S 167.0°E

Area affected: 116430 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_2022-Mar-28_to_2022-Mar-30_167.0_-47.5

Download data: JSON

Event type: Heat wave

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

• New Zealand

Duration: 8 days

Time span: March 19 2022 to March 26 2022

Statistics over entire affected area:

• Mean temperature anomaly: 2.3 °C
• Mean temperature: 12.6 °C
• Maximum temperature anomaly: 6.0 °C
• Maximum temperature: 18.6 °C

Event center: -48.0°S 171.0°E

Area affected: 1176535 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_2022-Mar-19_to_2022-Mar-26_171.0_-48.0