Category: Extremes affecting Canada

Heat wave occuring from July 30 2015 to August 04 2015 at 59.5°N 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 6 days

Time span: July 30 2015 to August 04 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 9.8 °C
  • Maximum temperature anomaly: 9.3 °C
  • Maximum temperature: 20.5 °C

Event center: 59.5°N 294.0°E

Area affected: 60596 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-Jul-30_to_2015-Aug-04_294.0_59.5

Heat wave occuring from July 27 2015 to August 05 2015 at 40.0°N 289.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 10 days

Time span: July 27 2015 to August 05 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 23.1 °C
  • Maximum temperature anomaly: 3.4 °C
  • Maximum temperature: 26.6 °C

Event center: 40.0°N 289.0°E

Area affected: 104537 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-Jul-27_to_2015-Aug-05_289.0_40.0

Heat wave occuring from July 26 2015 to July 28 2015 at 48.5°N 267.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 3 days

Time span: July 26 2015 to July 28 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 23.9 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 26.0 °C

Event center: 48.5°N 267.5°E

Area affected: 202103 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-Jul-26_to_2015-Jul-28_267.5_48.5

Cold spell occuring from July 26 2015 to August 13 2015 at 78.0°N 228.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 19 days

Time span: July 26 2015 to August 13 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: -0.4 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: -2.6 °C

Event center: 78.0°N 228.5°E

Area affected: 807203 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-Jul-26_to_2015-Aug-13_228.5_78.0

Cold spell occuring from July 26 2015 to July 28 2015 at 50.0°N 244.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: July 26 2015 to July 28 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -6.0 °C
  • Mean temperature: 11.6 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: 3.5 °C

Event center: 50.0°N 244.0°E

Area affected: 118905 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-Jul-26_to_2015-Jul-28_244.0_50.0

Heat wave occuring from July 25 2015 to July 30 2015 at 47.0°N 276.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 6 days

Time span: July 25 2015 to July 30 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 23.4 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 26.7 °C

Event center: 47.0°N 276.5°E

Area affected: 419214 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-Jul-25_to_2015-Jul-30_276.5_47.0

Cold spell occuring from July 25 2015 to July 27 2015 at 51.0°N 237.5°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: July 25 2015 to July 27 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 9.6 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 4.2 °C

Event center: 51.0°N 237.5°E

Area affected: 65941 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-Jul-25_to_2015-Jul-27_237.5_51.0

Heat wave occuring from July 18 2015 to July 20 2015 at 48.5°N 237.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 3 days

Time span: July 18 2015 to July 20 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 19.5 °C
  • Maximum temperature anomaly: 7.5 °C
  • Maximum temperature: 25.0 °C

Event center: 48.5°N 237.0°E

Area affected: 91262 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-Jul-18_to_2015-Jul-20_237.0_48.5

Cold spell occuring from July 17 2015 to August 01 2015 at 48.0°N 305.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 16 days

Time span: July 17 2015 to August 01 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 12.7 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 5.1 °C

Event center: 48.0°N 305.5°E

Area affected: 1665375 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-Jul-17_to_2015-Aug-01_305.5_48.0

Cold spell occuring from July 14 2015 to July 18 2015 at 42.0°N 278.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 5 days

Time span: July 14 2015 to July 18 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 17.1 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 13.4 °C

Event center: 42.0°N 278.0°E

Area affected: 155127 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-Jul-14_to_2015-Jul-18_278.0_42.0