Category: Extremes affecting Canada

Heat wave occuring from October 28 2020 to November 18 2020 at 27.0°N 287.0°E

Download data: JSON

Event type: Heat wave

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

  • Bahamas
  • Canada
  • Cuba
  • Mexico
  • United States

Duration: 22 days

Time span: October 28 2020 to November 18 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.2 °C
  • Mean temperature: 16.6 °C
  • Maximum temperature anomaly: 17.9 °C
  • Maximum temperature: 29.8 °C

Event center: 27.0°N 287.0°E

Area affected: 12787597 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-Oct-28_to_2020-Nov-18_287.0_27.0

Cold spell occuring from October 28 2020 to November 08 2020 at 62.5°N 225.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 12 days

Time span: October 28 2020 to November 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -14.7 °C
  • Minimum temperature anomaly: -19.1 °C
  • Minimum temperature: -34.5 °C

Event center: 62.5°N 225.5°E

Area affected: 1478744 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-Oct-28_to_2020-Nov-08_225.5_62.5

Cold spell occuring from October 27 2020 to November 01 2020 at 49.0°N 306.0°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: October 27 2020 to November 01 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: -0.7 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: -5.7 °C

Event center: 49.0°N 306.0°E

Area affected: 78938 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-Oct-27_to_2020-Nov-01_306.0_49.0

Cold spell occuring from October 26 2020 to October 31 2020 at 50.0°N 297.5°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: October 26 2020 to October 31 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: -1.4 °C
  • Minimum temperature anomaly: -8.8 °C
  • Minimum temperature: -7.2 °C

Event center: 50.0°N 297.5°E

Area affected: 63324 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-Oct-26_to_2020-Oct-31_297.5_50.0

Heat wave occuring from October 22 2020 to October 25 2020 at 74.0°N 244.0°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: October 22 2020 to October 25 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: -7.7 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: -6.2 °C

Event center: 74.0°N 244.0°E

Area affected: 51736 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-Oct-22_to_2020-Oct-25_244.0_74.0

Heat wave occuring from October 15 2020 to October 21 2020 at 51.5°N 304.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 7 days

Time span: October 15 2020 to October 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.0 °C
  • Mean temperature: 7.2 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 12.6 °C

Event center: 51.5°N 304.0°E

Area affected: 455686 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-Oct-15_to_2020-Oct-21_304.0_51.5

Heat wave occuring from October 15 2020 to October 19 2020 at 46.5°N 308.5°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: October 15 2020 to October 19 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 14.8 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 18.1 °C

Event center: 46.5°N 308.5°E

Area affected: 104515 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-Oct-15_to_2020-Oct-19_308.5_46.5

Cold spell occuring from October 14 2020 to October 31 2020 at 46.0°N 252.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 18 days

Time span: October 14 2020 to October 31 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -5.2 °C
  • Minimum temperature anomaly: -23.5 °C
  • Minimum temperature: -31.0 °C

Event center: 46.0°N 252.0°E

Area affected: 7800396 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-Oct-14_to_2020-Oct-31_252.0_46.0

Heat wave occuring from October 04 2020 to October 22 2020 at 68.5°N 294.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 19 days

Time span: October 04 2020 to October 22 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: -1.4 °C
  • Maximum temperature anomaly: 14.7 °C
  • Maximum temperature: 16.0 °C

Event center: 68.5°N 294.5°E

Area affected: 4206988 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-Oct-04_to_2020-Oct-22_294.5_68.5

Cold spell occuring from October 02 2020 to October 04 2020 at 47.5°N 270.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: October 02 2020 to October 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 4.5 °C
  • Minimum temperature anomaly: -7.1 °C
  • Minimum temperature: 1.4 °C

Event center: 47.5°N 270.0°E

Area affected: 75175 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-Oct-02_to_2020-Oct-04_270.0_47.5