Category: Extremes affecting Canada

Heat wave occuring from March 07 2021 to March 15 2021 at 74.0°N 289.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 9 days

Time span: March 07 2021 to March 15 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 9.3 °C
  • Mean temperature: -19.1 °C
  • Maximum temperature anomaly: 17.6 °C
  • Maximum temperature: -7.4 °C

Event center: 74.0°N 289.5°E

Area affected: 565512 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_2021-Mar-07_to_2021-Mar-15_289.5_74.0

Heat wave occuring from March 06 2021 to March 08 2021 at 70.0°N 256.5°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: March 06 2021 to March 08 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 11.1 °C
  • Mean temperature: -20.5 °C
  • Maximum temperature anomaly: 16.1 °C
  • Maximum temperature: -15.4 °C

Event center: 70.0°N 256.5°E

Area affected: 59673 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_2021-Mar-06_to_2021-Mar-08_256.5_70.0

Cold spell occuring from March 02 2021 to March 05 2021 at 68.5°N 263.0°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 02 2021 to March 05 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.3 °C
  • Mean temperature: -39.1 °C
  • Minimum temperature anomaly: -13.4 °C
  • Minimum temperature: -44.1 °C

Event center: 68.5°N 263.0°E

Area affected: 78896 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_2021-Mar-02_to_2021-Mar-05_263.0_68.5

Heat wave occuring from March 02 2021 to March 14 2021 at 46.5°N 260.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 13 days

Time span: March 02 2021 to March 14 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 10.3 °C
  • Mean temperature: 7.6 °C
  • Maximum temperature anomaly: 17.3 °C
  • Maximum temperature: 23.7 °C

Event center: 46.5°N 260.0°E

Area affected: 2563488 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_2021-Mar-02_to_2021-Mar-14_260.0_46.5

Cold spell occuring from February 25 2021 to March 04 2021 at 68.0°N 276.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 8 days

Time span: February 25 2021 to March 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -9.4 °C
  • Mean temperature: -39.7 °C
  • Minimum temperature anomaly: -15.9 °C
  • Minimum temperature: -48.0 °C

Event center: 68.0°N 276.5°E

Area affected: 107622 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_2021-Feb-25_to_2021-Mar-04_276.5_68.0

Cold spell occuring from February 21 2021 to February 25 2021 at 84.5°N 277.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 5 days

Time span: February 21 2021 to February 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: -33.2 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: -35.5 °C

Event center: 84.5°N 277.0°E

Area affected: 350739 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_2021-Feb-21_to_2021-Feb-25_277.0_84.5

Heat wave occuring from February 20 2021 to February 23 2021 at 55.0°N 247.5°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: February 20 2021 to February 23 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 10.7 °C
  • Mean temperature: 0.2 °C
  • Maximum temperature anomaly: 14.4 °C
  • Maximum temperature: 5.1 °C

Event center: 55.0°N 247.5°E

Area affected: 172816 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_2021-Feb-20_to_2021-Feb-23_247.5_55.0

Heat wave occuring from February 19 2021 to February 25 2021 at 60.0°N 287.0°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: February 19 2021 to February 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 11.5 °C
  • Mean temperature: -14.6 °C
  • Maximum temperature anomaly: 22.4 °C
  • Maximum temperature: 0.2 °C

Event center: 60.0°N 287.0°E

Area affected: 1829217 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_2021-Feb-19_to_2021-Feb-25_287.0_60.0

Cold spell occuring from February 18 2021 to February 27 2021 at 73.0°N 256.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 10 days

Time span: February 18 2021 to February 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.9 °C
  • Mean temperature: -37.5 °C
  • Minimum temperature anomaly: -16.2 °C
  • Minimum temperature: -48.8 °C

Event center: 73.0°N 256.5°E

Area affected: 266867 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_2021-Feb-18_to_2021-Feb-27_256.5_73.0

Cold spell occuring from February 17 2021 to February 23 2021 at 75.5°N 282.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 7 days

Time span: February 17 2021 to February 23 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.9 °C
  • Mean temperature: -34.8 °C
  • Minimum temperature anomaly: -19.7 °C
  • Minimum temperature: -55.2 °C

Event center: 75.5°N 282.0°E

Area affected: 636801 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_2021-Feb-17_to_2021-Feb-23_282.0_75.5