Category: Extremes affecting Canada

Cold spell occuring from March 12 2020 to March 22 2020 at 48.5°N 247.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 11 days

Time span: March 12 2020 to March 22 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.5 °C
  • Mean temperature: -7.0 °C
  • Minimum temperature anomaly: -22.0 °C
  • Minimum temperature: -27.3 °C

Event center: 48.5°N 247.5°E

Area affected: 2953313 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-Mar-12_to_2020-Mar-22_247.5_48.5

Heat wave occuring from March 11 2020 to May 05 2020 at 43.5°N 209.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Japan
  • Russian Federation
  • United States

Duration: 56 days

Time span: March 11 2020 to May 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 6.4 °C
  • Maximum temperature anomaly: 22.9 °C
  • Maximum temperature: 25.9 °C

Event center: 43.5°N 209.0°E

Area affected: 21899864 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-Mar-11_to_2020-May-05_209.0_43.5

Cold spell occuring from March 09 2020 to March 11 2020 at 56.0°N 295.0°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: March 09 2020 to March 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -10.0 °C
  • Mean temperature: -27.7 °C
  • Minimum temperature anomaly: -11.8 °C
  • Minimum temperature: -30.3 °C

Event center: 56.0°N 295.0°E

Area affected: 55756 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-Mar-09_to_2020-Mar-11_295.0_56.0

Cold spell occuring from March 09 2020 to March 12 2020 at 77.5°N 222.0°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: March 09 2020 to March 12 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: -31.8 °C
  • Minimum temperature anomaly: -7.3 °C
  • Minimum temperature: -33.6 °C

Event center: 77.5°N 222.0°E

Area affected: 170401 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-Mar-09_to_2020-Mar-12_222.0_77.5

Cold spell occuring from March 07 2020 to March 10 2020 at 60.0°N 269.5°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: March 07 2020 to March 10 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -28.7 °C
  • Minimum temperature anomaly: -10.1 °C
  • Minimum temperature: -31.3 °C

Event center: 60.0°N 269.5°E

Area affected: 69824 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-Mar-07_to_2020-Mar-10_269.5_60.0

Cold spell occuring from March 02 2020 to March 07 2020 at 72.0°N 232.0°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: March 02 2020 to March 07 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -31.3 °C
  • Minimum temperature anomaly: -13.7 °C
  • Minimum temperature: -44.3 °C

Event center: 72.0°N 232.0°E

Area affected: 278693 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-Mar-02_to_2020-Mar-07_232.0_72.0

Heat wave occuring from March 01 2020 to March 04 2020 at 48.0°N 273.5°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 01 2020 to March 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 8.7 °C
  • Mean temperature: 0.1 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 1.4 °C

Event center: 48.0°N 273.5°E

Area affected: 62487 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-Mar-01_to_2020-Mar-04_273.5_48.0

Cold spell occuring from February 29 2020 to March 08 2020 at 70.0°N 251.5°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: February 29 2020 to March 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -9.6 °C
  • Mean temperature: -40.9 °C
  • Minimum temperature anomaly: -14.4 °C
  • Minimum temperature: -46.3 °C

Event center: 70.0°N 251.5°E

Area affected: 167842 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-Feb-29_to_2020-Mar-08_251.5_70.0

Cold spell occuring from February 23 2020 to March 07 2020 at 67.5°N 212.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 14 days

Time span: February 23 2020 to March 07 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -12.9 °C
  • Mean temperature: -31.5 °C
  • Minimum temperature anomaly: -20.1 °C
  • Minimum temperature: -41.6 °C

Event center: 67.5°N 212.0°E

Area affected: 685783 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-Feb-23_to_2020-Mar-07_212.0_67.5

Heat wave occuring from February 22 2020 to February 24 2020 at 50.0°N 282.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 3 days

Time span: February 22 2020 to February 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 11.8 °C
  • Mean temperature: -1.6 °C
  • Maximum temperature anomaly: 14.3 °C
  • Maximum temperature: 0.7 °C

Event center: 50.0°N 282.5°E

Area affected: 208729 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-Feb-22_to_2020-Feb-24_282.5_50.0