Category: Heat waves affecting Canada

Heat wave occuring from March 04 2023 to March 07 2023 at 48.5°N 272.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 4 days

Time span: March 04 2023 to March 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.2 °C
  • Mean temperature: -0.1 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 0.6 °C

Event center: 48.5°N 272.5°E

Area affected: 56162 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-07_272.5_48.5

Heat wave occuring from February 26 2023 to March 01 2023 at 86.5°N 339.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 4 days

Time span: February 26 2023 to March 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 8.8 °C
  • Mean temperature: -17.0 °C
  • Maximum temperature anomaly: 12.2 °C
  • Maximum temperature: -12.9 °C

Event center: 86.5°N 339.0°E

Area affected: 102956 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-26_to_2023-Mar-01_339.0_86.5

Heat wave occuring from February 13 2023 to March 15 2023 at 42.5°N 197.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 31 days

Time span: February 13 2023 to March 15 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 9.7 °C
  • Maximum temperature anomaly: 23.6 °C
  • Maximum temperature: 25.8 °C

Event center: 42.5°N 197.0°E

Area affected: 11621576 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-13_to_2023-Mar-15_197.0_42.5

Heat wave occuring from February 07 2023 to February 17 2023 at 48.5°N 272.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 11 days

Time span: February 07 2023 to February 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 10.3 °C
  • Mean temperature: 3.5 °C
  • Maximum temperature anomaly: 19.3 °C
  • Maximum temperature: 24.2 °C

Event center: 48.5°N 272.5°E

Area affected: 3346791 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-07_to_2023-Feb-17_272.5_48.5

Heat wave occuring from February 03 2023 to February 07 2023 at 56.0°N 236.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 5 days

Time span: February 03 2023 to February 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.0 °C
  • Mean temperature: -0.1 °C
  • Maximum temperature anomaly: 11.9 °C
  • Maximum temperature: 8.1 °C

Event center: 56.0°N 236.0°E

Area affected: 125795 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-03_to_2023-Feb-07_236.0_56.0

Heat wave occuring from February 03 2023 to February 12 2023 at 85.5°N 306.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland
  • Svalbard and Jan Mayen

Duration: 10 days

Time span: February 03 2023 to February 12 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 9.5 °C
  • Mean temperature: -17.6 °C
  • Maximum temperature anomaly: 17.3 °C
  • Maximum temperature: -5.4 °C

Event center: 85.5°N 306.0°E

Area affected: 1338797 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-03_to_2023-Feb-12_306.0_85.5

Heat wave occuring from January 28 2023 to January 31 2023 at 43.0°N 294.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 4 days

Time span: January 28 2023 to January 31 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.8 °C
  • Mean temperature: 7.0 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 13.8 °C

Event center: 43.0°N 294.5°E

Area affected: 209643 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-Jan-28_to_2023-Jan-31_294.5_43.0

Heat wave occuring from January 20 2023 to February 03 2023 at 62.5°N 211.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 15 days

Time span: January 20 2023 to February 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 12.0 °C
  • Mean temperature: -4.8 °C
  • Maximum temperature anomaly: 23.0 °C
  • Maximum temperature: 8.6 °C

Event center: 62.5°N 211.5°E

Area affected: 774579 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-Jan-20_to_2023-Feb-03_211.5_62.5

Heat wave occuring from January 13 2023 to January 29 2023 at 45.0°N 328.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 17 days

Time span: January 13 2023 to January 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.5 °C
  • Mean temperature: 8.9 °C
  • Maximum temperature anomaly: 18.7 °C
  • Maximum temperature: 20.7 °C

Event center: 45.0°N 328.5°E

Area affected: 3742354 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-Jan-13_to_2023-Jan-29_328.5_45.0

Heat wave occuring from January 11 2023 to January 19 2023 at 50.0°N 242.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 9 days

Time span: January 11 2023 to January 19 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: 3.7 °C
  • Maximum temperature anomaly: 11.9 °C
  • Maximum temperature: 12.1 °C

Event center: 50.0°N 242.5°E

Area affected: 536694 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-Jan-11_to_2023-Jan-19_242.5_50.0