Category: Extremes affecting Canada

Cold spell occuring from August 06 2020 to August 14 2020 at 53.5°N 232.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 9 days

Time span: August 06 2020 to August 14 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 8.7 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: 0.8 °C

Event center: 53.5°N 232.0°E

Area affected: 257372 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-Aug-06_to_2020-Aug-14_232.0_53.5

Cold spell occuring from August 03 2020 to August 05 2020 at 87.0°N 316.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: August 03 2020 to August 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -0.8 °C
  • Mean temperature: -0.3 °C
  • Minimum temperature anomaly: -1.4 °C
  • Minimum temperature: -0.9 °C

Event center: 87.0°N 316.0°E

Area affected: 68274 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-Aug-03_to_2020-Aug-05_316.0_87.0

Cold spell occuring from August 03 2020 to August 06 2020 at 40.0°N 267.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 4 days

Time span: August 03 2020 to August 06 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 19.6 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 13.4 °C

Event center: 40.0°N 267.0°E

Area affected: 801272 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-Aug-03_to_2020-Aug-06_267.0_40.0

Cold spell occuring from August 02 2020 to August 05 2020 at 48.5°N 277.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 4 days

Time span: August 02 2020 to August 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 11.1 °C

Event center: 48.5°N 277.5°E

Area affected: 64327 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-Aug-02_to_2020-Aug-05_277.5_48.5

Heat wave occuring from July 29 2020 to August 02 2020 at 54.5°N 290.5°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: July 29 2020 to August 02 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 18.1 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 20.3 °C

Event center: 54.5°N 290.5°E

Area affected: 117810 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-Jul-29_to_2020-Aug-02_290.5_54.5

Heat wave occuring from July 29 2020 to August 04 2020 at 54.0°N 227.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 7 days

Time span: July 29 2020 to August 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.4 °C
  • Mean temperature: 15.6 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 20.9 °C

Event center: 54.0°N 227.0°E

Area affected: 125761 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-Jul-29_to_2020-Aug-04_227.0_54.0

Heat wave occuring from July 28 2020 to August 03 2020 at 52.0°N 243.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 7 days

Time span: July 28 2020 to August 03 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 21.5 °C
  • Maximum temperature anomaly: 8.1 °C
  • Maximum temperature: 35.6 °C

Event center: 52.0°N 243.5°E

Area affected: 474855 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-Jul-28_to_2020-Aug-03_243.5_52.0

Heat wave occuring from July 27 2020 to August 05 2020 at 65.5°N 293.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 10 days

Time span: July 27 2020 to August 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 12.1 °C
  • Maximum temperature anomaly: 8.9 °C
  • Maximum temperature: 18.5 °C

Event center: 65.5°N 293.0°E

Area affected: 80898 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-Jul-27_to_2020-Aug-05_293.0_65.5

Heat wave occuring from July 21 2020 to July 28 2020 at 51.5°N 279.5°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: July 21 2020 to July 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 23.1 °C
  • Maximum temperature anomaly: 10.3 °C
  • Maximum temperature: 26.7 °C

Event center: 51.5°N 279.5°E

Area affected: 745776 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-Jul-21_to_2020-Jul-28_279.5_51.5

Cold spell occuring from July 20 2020 to July 28 2020 at 60.0°N 266.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 9 days

Time span: July 20 2020 to July 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.6 °C
  • Mean temperature: 7.1 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 1.8 °C

Event center: 60.0°N 266.5°E

Area affected: 71921 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-Jul-20_to_2020-Jul-28_266.5_60.0