Category: Extremes affecting Canada

Cold spell occuring from May 07 2012 to May 21 2012 at 84.0°N 329.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 15 days

Time span: May 07 2012 to May 21 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: -14.4 °C
  • Minimum temperature anomaly: -7.1 °C
  • Minimum temperature: -19.2 °C

Event center: 84.0°N 329.0°E

Area affected: 284193 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_2012-May-07_to_2012-May-21_329.0_84.0

Heat wave occuring from May 04 2012 to May 16 2012 at 64.5°N 258.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 13 days

Time span: May 04 2012 to May 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: -0.6 °C
  • Maximum temperature anomaly: 11.3 °C
  • Maximum temperature: 13.3 °C

Event center: 64.5°N 258.0°E

Area affected: 1049654 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_2012-May-04_to_2012-May-16_258.0_64.5

Heat wave occuring from May 03 2012 to June 03 2012 at 43.5°N 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 32 days

Time span: May 03 2012 to June 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 10.5 °C
  • Maximum temperature anomaly: 13.3 °C
  • Maximum temperature: 25.1 °C

Event center: 43.5°N 294.0°E

Area affected: 2680618 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_2012-May-03_to_2012-Jun-03_294.0_43.5

Heat wave occuring from May 03 2012 to May 07 2012 at 47.5°N 302.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 5 days

Time span: May 03 2012 to May 07 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 6.2 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 9.2 °C

Event center: 47.5°N 302.0°E

Area affected: 54451 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_2012-May-03_to_2012-May-07_302.0_47.5

Heat wave occuring from May 01 2012 to May 11 2012 at 65.0°N 279.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 11 days

Time span: May 01 2012 to May 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: -2.1 °C
  • Maximum temperature anomaly: 11.3 °C
  • Maximum temperature: 6.5 °C

Event center: 65.0°N 279.5°E

Area affected: 1509038 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_2012-May-01_to_2012-May-11_279.5_65.0

Cold spell occuring from May 01 2012 to May 05 2012 at 61.0°N 210.5°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: May 01 2012 to May 05 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: -1.3 °C
  • Minimum temperature anomaly: -10.5 °C
  • Minimum temperature: -11.6 °C

Event center: 61.0°N 210.5°E

Area affected: 129814 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_2012-May-01_to_2012-May-05_210.5_61.0

Cold spell occuring from April 27 2012 to April 29 2012 at 50.0°N 282.5°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: April 27 2012 to April 29 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -7.7 °C
  • Mean temperature: -2.1 °C
  • Minimum temperature anomaly: -11.5 °C
  • Minimum temperature: -9.3 °C

Event center: 50.0°N 282.5°E

Area affected: 363360 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_2012-Apr-27_to_2012-Apr-29_282.5_50.0

Heat wave occuring from April 18 2012 to May 30 2012 at 43.5°N 272.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 43 days

Time span: April 18 2012 to May 30 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.6 °C
  • Mean temperature: 21.7 °C
  • Maximum temperature anomaly: 14.9 °C
  • Maximum temperature: 32.7 °C

Event center: 43.5°N 272.5°E

Area affected: 7313623 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_2012-Apr-18_to_2012-May-30_272.5_43.5

Cold spell occuring from April 17 2012 to April 19 2012 at 57.5°N 296.5°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: April 17 2012 to April 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: -12.5 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: -20.9 °C

Event center: 57.5°N 296.5°E

Area affected: 224365 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_2012-Apr-17_to_2012-Apr-19_296.5_57.5

Cold spell occuring from April 14 2012 to April 20 2012 at 59.5°N 265.0°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: April 14 2012 to April 20 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -9.1 °C
  • Mean temperature: -18.7 °C
  • Minimum temperature anomaly: -13.0 °C
  • Minimum temperature: -25.0 °C

Event center: 59.5°N 265.0°E

Area affected: 765096 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_2012-Apr-14_to_2012-Apr-20_265.0_59.5