Category: Extremes affecting Canada

Cold spell occuring from May 17 2024 to May 21 2024 at 50.0°N 243.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 5 days

Time span: May 17 2024 to May 21 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 3.8 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: -0.9 °C

Event center: 50.0°N 243.5°E

Area affected: 95868 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_2024-May-17_to_2024-May-21_243.5_50.0

Heat wave occuring from May 17 2024 to May 27 2024 at 43.5°N 283.0°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: May 17 2024 to May 27 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 6.8 °C
  • Mean temperature: 19.3 °C
  • Maximum temperature anomaly: 11.6 °C
  • Maximum temperature: 26.4 °C

Event center: 43.5°N 283.0°E

Area affected: 1358123 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_2024-May-17_to_2024-May-27_283.0_43.5

Heat wave occuring from May 14 2024 to May 19 2024 at 45.5°N 295.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 6 days

Time span: May 14 2024 to May 19 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 14.9 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 18.1 °C

Event center: 45.5°N 295.0°E

Area affected: 78300 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_2024-May-14_to_2024-May-19_295.0_45.5

Heat wave occuring from May 13 2024 to June 13 2024 at 69.5°N 248.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 32 days

Time span: May 13 2024 to June 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 1.4 °C
  • Maximum temperature anomaly: 15.8 °C
  • Maximum temperature: 16.8 °C

Event center: 69.5°N 248.0°E

Area affected: 5476283 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_2024-May-13_to_2024-Jun-13_248.0_69.5

Heat wave occuring from May 11 2024 to May 18 2024 at 51.0°N 298.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 8 days

Time span: May 11 2024 to May 18 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 5.7 °C
  • Mean temperature: 9.3 °C
  • Maximum temperature anomaly: 9.0 °C
  • Maximum temperature: 12.4 °C

Event center: 51.0°N 298.0°E

Area affected: 118474 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_2024-May-11_to_2024-May-18_298.0_51.0

Heat wave occuring from May 11 2024 to May 15 2024 at 55.0°N 293.0°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: May 11 2024 to May 15 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 7.0 °C
  • Mean temperature: 8.3 °C
  • Maximum temperature anomaly: 10.5 °C
  • Maximum temperature: 11.4 °C

Event center: 55.0°N 293.0°E

Area affected: 90200 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_2024-May-11_to_2024-May-15_293.0_55.0

Heat wave occuring from May 10 2024 to May 14 2024 at 53.5°N 285.0°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: May 10 2024 to May 14 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 7.7 °C
  • Mean temperature: 10.0 °C
  • Maximum temperature anomaly: 10.7 °C
  • Maximum temperature: 12.6 °C

Event center: 53.5°N 285.0°E

Area affected: 58701 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_2024-May-10_to_2024-May-14_285.0_53.5

Heat wave occuring from May 09 2024 to May 13 2024 at 51.5°N 241.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: May 09 2024 to May 13 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: 14.4 °C
  • Maximum temperature anomaly: 10.8 °C
  • Maximum temperature: 23.5 °C

Event center: 51.5°N 241.0°E

Area affected: 378393 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_2024-May-09_to_2024-May-13_241.0_51.5

Cold spell occuring from May 07 2024 to May 22 2024 at 72.5°N 303.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 16 days

Time span: May 07 2024 to May 22 2024

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: -12.3 °C
  • Minimum temperature anomaly: -11.7 °C
  • Minimum temperature: -23.6 °C

Event center: 72.5°N 303.0°E

Area affected: 679606 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_2024-May-07_to_2024-May-22_303.0_72.5

Heat wave occuring from May 07 2024 to May 11 2024 at 61.5°N 259.0°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: May 07 2024 to May 11 2024

Statistics over entire affected area:

  • Mean temperature anomaly: 8.1 °C
  • Mean temperature: 5.3 °C
  • Maximum temperature anomaly: 11.4 °C
  • Maximum temperature: 12.1 °C

Event center: 61.5°N 259.0°E

Area affected: 129589 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_2024-May-07_to_2024-May-11_259.0_61.5