Category: Extremes affecting Canada

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 6 days

Time span: December 20 2021 to December 25 2021

Statistics over entire affected area:

• Mean temperature anomaly: -11.8 °C
• Mean temperature: -35.2 °C
• Minimum temperature anomaly: -14.9 °C
• Minimum temperature: -39.8 °C

Event center: 64.5°N 244.5°E

Area affected: 58862 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-Dec-20_to_2021-Dec-25_244.5_64.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 5 days

Time span: December 16 2021 to December 20 2021

Statistics over entire affected area:

• Mean temperature anomaly: -6.9 °C
• Mean temperature: -32.3 °C
• Minimum temperature anomaly: -8.2 °C
• Minimum temperature: -34.9 °C

Event center: 74.0°N 226.0°E

Area affected: 94366 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-Dec-16_to_2021-Dec-20_226.0_74.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 3 days

Time span: December 08 2021 to December 10 2021

Statistics over entire affected area:

• Mean temperature anomaly: -10.5 °C
• Mean temperature: -24.7 °C
• Minimum temperature anomaly: -15.4 °C
• Minimum temperature: -31.2 °C

Event center: 50.5°N 290.0°E

Area affected: 101493 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-Dec-08_to_2021-Dec-10_290.0_50.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 3 days

Time span: December 07 2021 to December 09 2021

Statistics over entire affected area:

• Mean temperature anomaly: -11.9 °C
• Mean temperature: -23.6 °C
• Minimum temperature anomaly: -14.7 °C
• Minimum temperature: -27.3 °C

Event center: 51.0°N 278.5°E

Area affected: 96103 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-Dec-07_to_2021-Dec-09_278.5_51.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 3 days

Time span: December 06 2021 to December 08 2021

Statistics over entire affected area:

• Mean temperature anomaly: -12.8 °C
• Mean temperature: -29.3 °C
• Minimum temperature anomaly: -16.1 °C
• Minimum temperature: -33.9 °C

Event center: 53.5°N 265.5°E

Area affected: 450519 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-Dec-06_to_2021-Dec-08_265.5_53.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 5 days

Time span: December 03 2021 to December 07 2021

Statistics over entire affected area:

• Mean temperature anomaly: -13.5 °C
• Mean temperature: -31.5 °C
• Minimum temperature anomaly: -24.9 °C
• Minimum temperature: -44.6 °C

Event center: 62.5°N 234.5°E

Area affected: 570472 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-Dec-03_to_2021-Dec-07_234.5_62.5