Category: Cold spells affecting Canada

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 31 2021 to September 03 2021

Statistics over entire affected area:

• Mean temperature anomaly: -3.0 °C
• Mean temperature: -2.4 °C
• Minimum temperature anomaly: -4.4 °C
• Minimum temperature: -3.3 °C

Event center: 71.5°N 225.5°E

Area affected: 54498 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-Aug-31_to_2021-Sep-03_225.5_71.5

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 24 2021 to August 27 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.1 °C
• Mean temperature: 11.5 °C
• Minimum temperature anomaly: -6.6 °C
• Minimum temperature: 9.8 °C

Event center: 53.0°N 261.0°E

Area affected: 50417 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-Aug-24_to_2021-Aug-27_261.0_53.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 10 days

Time span: August 08 2021 to August 17 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.1 °C
• Mean temperature: 5.7 °C
• Minimum temperature anomaly: -7.1 °C
• Minimum temperature: -1.8 °C

Event center: 68.5°N 261.5°E

Area affected: 250680 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-Aug-08_to_2021-Aug-17_261.5_68.5

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 07 2021 to August 10 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.9 °C
• Mean temperature: 9.0 °C
• Minimum temperature anomaly: -8.1 °C
• Minimum temperature: 5.4 °C

Event center: 64.5°N 234.5°E

Area affected: 98932 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-Aug-07_to_2021-Aug-10_234.5_64.5

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 04 2021 to August 07 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.3 °C
• Mean temperature: 6.9 °C
• Minimum temperature anomaly: -6.9 °C
• Minimum temperature: 3.7 °C

Event center: 61.0°N 284.0°E

Area affected: 156384 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-Aug-04_to_2021-Aug-07_284.0_61.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 3 days

Time span: August 04 2021 to August 06 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.3 °C
• Mean temperature: 8.6 °C
• Minimum temperature anomaly: -6.8 °C
• Minimum temperature: 6.7 °C

Event center: 61.5°N 260.0°E

Area affected: 65221 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-Aug-04_to_2021-Aug-06_260.0_61.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 3 days

Time span: August 04 2021 to August 06 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.7 °C
• Mean temperature: 6.7 °C
• Minimum temperature anomaly: -8.2 °C
• Minimum temperature: 2.2 °C

Event center: 65.0°N 265.0°E

Area affected: 51869 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-Aug-04_to_2021-Aug-06_265.0_65.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 13 days

Time span: August 03 2021 to August 15 2021

Statistics over entire affected area:

• Mean temperature anomaly: -4.9 °C
• Mean temperature: 4.3 °C
• Minimum temperature anomaly: -6.8 °C
• Minimum temperature: 1.3 °C

Event center: 68.5°N 247.0°E

Area affected: 84447 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-Aug-03_to_2021-Aug-15_247.0_68.5