Category: Extremes affecting Canada

Cold spell occuring from August 31 2015 to September 06 2015 at 64.5°N 297.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 7 days

Time span: August 31 2015 to September 06 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 0.5 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: -6.2 °C

Event center: 64.5°N 297.5°E

Area affected: 57227 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_2015-Aug-31_to_2015-Sep-06_297.5_64.5

Heat wave occuring from August 29 2015 to September 13 2015 at 71.0°N 262.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 16 days

Time span: August 29 2015 to September 13 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 4.2 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 10.0 °C

Event center: 71.0°N 262.5°E

Area affected: 348126 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_2015-Aug-29_to_2015-Sep-13_262.5_71.0

Heat wave occuring from August 29 2015 to September 16 2015 at 40.0°N 270.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 19 days

Time span: August 29 2015 to September 16 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 23.8 °C
  • Maximum temperature anomaly: 11.0 °C
  • Maximum temperature: 30.9 °C

Event center: 40.0°N 270.0°E

Area affected: 4631943 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_2015-Aug-29_to_2015-Sep-16_270.0_40.0

Heat wave occuring from August 28 2015 to August 30 2015 at 55.0°N 252.0°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: August 28 2015 to August 30 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 19.7 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 21.4 °C

Event center: 55.0°N 252.0°E

Area affected: 57394 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_2015-Aug-28_to_2015-Aug-30_252.0_55.0

Cold spell occuring from August 28 2015 to September 08 2015 at 62.0°N 218.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 12 days

Time span: August 28 2015 to September 08 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 4.7 °C
  • Minimum temperature anomaly: -12.9 °C
  • Minimum temperature: -10.5 °C

Event center: 62.0°N 218.0°E

Area affected: 3780367 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_2015-Aug-28_to_2015-Sep-08_218.0_62.0

Heat wave occuring from August 23 2015 to September 09 2015 at 70.5°N 241.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 18 days

Time span: August 23 2015 to September 09 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 4.7 °C
  • Maximum temperature anomaly: 8.2 °C
  • Maximum temperature: 11.8 °C

Event center: 70.5°N 241.0°E

Area affected: 630555 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_2015-Aug-23_to_2015-Sep-09_241.0_70.5

Cold spell occuring from August 23 2015 to August 25 2015 at 54.0°N 268.5°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 23 2015 to August 25 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: 7.8 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 5.8 °C

Event center: 54.0°N 268.5°E

Area affected: 76606 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_2015-Aug-23_to_2015-Aug-25_268.5_54.0

Cold spell occuring from August 23 2015 to August 31 2015 at 48.5°N 273.0°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 23 2015 to August 31 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 17.5 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 9.1 °C

Event center: 48.5°N 273.0°E

Area affected: 2449167 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_2015-Aug-23_to_2015-Aug-31_273.0_48.5

Cold spell occuring from August 21 2015 to August 23 2015 at 51.0°N 247.5°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 21 2015 to August 23 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 11.0 °C
  • Minimum temperature anomaly: -8.3 °C
  • Minimum temperature: 9.0 °C

Event center: 51.0°N 247.5°E

Area affected: 60910 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_2015-Aug-21_to_2015-Aug-23_247.5_51.0

Cold spell occuring from August 20 2015 to September 13 2015 at 64.5°N 279.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 25 days

Time span: August 20 2015 to September 13 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 2.9 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: -2.9 °C

Event center: 64.5°N 279.5°E

Area affected: 966880 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_2015-Aug-20_to_2015-Sep-13_279.5_64.5