Category: Extremes affecting Canada

Cold spell occuring from February 28 2012 to March 04 2012 at 69.5°N 231.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 6 days

Time span: February 28 2012 to March 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -11.1 °C
  • Mean temperature: -35.2 °C
  • Minimum temperature anomaly: -16.7 °C
  • Minimum temperature: -43.5 °C

Event center: 69.5°N 231.0°E

Area affected: 162221 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-Feb-28_to_2012-Mar-04_231.0_69.5

Cold spell occuring from February 24 2012 to March 10 2012 at 69.0°N 198.0°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: February 24 2012 to March 10 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -12.8 °C
  • Mean temperature: -35.9 °C
  • Minimum temperature anomaly: -18.5 °C
  • Minimum temperature: -42.0 °C

Event center: 69.0°N 198.0°E

Area affected: 278708 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-Feb-24_to_2012-Mar-10_198.0_69.0

Cold spell occuring from February 18 2012 to March 16 2012 at 79.0°N 286.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 28 days

Time span: February 18 2012 to March 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -10.0 °C
  • Mean temperature: -33.7 °C
  • Minimum temperature anomaly: -22.5 °C
  • Minimum temperature: -51.9 °C

Event center: 79.0°N 286.5°E

Area affected: 3201198 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-Feb-18_to_2012-Mar-16_286.5_79.0

Heat wave occuring from February 17 2012 to February 19 2012 at 55.5°N 290.0°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: February 17 2012 to February 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 12.6 °C
  • Mean temperature: -8.9 °C
  • Maximum temperature anomaly: 16.0 °C
  • Maximum temperature: -6.0 °C

Event center: 55.5°N 290.0°E

Area affected: 79246 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-Feb-17_to_2012-Feb-19_290.0_55.5

Heat wave occuring from February 14 2012 to February 18 2012 at 48.5°N 279.5°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: February 14 2012 to February 18 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 11.8 °C
  • Mean temperature: -2.5 °C
  • Maximum temperature anomaly: 16.6 °C
  • Maximum temperature: 2.6 °C

Event center: 48.5°N 279.5°E

Area affected: 600312 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-Feb-14_to_2012-Feb-18_279.5_48.5

Cold spell occuring from February 11 2012 to February 13 2012 at 52.5°N 289.0°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: February 11 2012 to February 13 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -9.1 °C
  • Mean temperature: -28.7 °C
  • Minimum temperature anomaly: -10.5 °C
  • Minimum temperature: -32.7 °C

Event center: 52.5°N 289.0°E

Area affected: 56276 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-Feb-11_to_2012-Feb-13_289.0_52.5

Cold spell occuring from February 10 2012 to February 13 2012 at 57.5°N 284.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 4 days

Time span: February 10 2012 to February 13 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -10.4 °C
  • Mean temperature: -37.3 °C
  • Minimum temperature anomaly: -15.6 °C
  • Minimum temperature: -43.0 °C

Event center: 57.5°N 284.5°E

Area affected: 79370 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-Feb-10_to_2012-Feb-13_284.5_57.5

Cold spell occuring from February 09 2012 to March 16 2012 at 11.0°N 227.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 37 days

Time span: February 09 2012 to March 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.6 °C
  • Mean temperature: 19.8 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 0.5 °C

Event center: 11.0°N 227.5°E

Area affected: 10676150 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-Feb-09_to_2012-Mar-16_227.5_11.0

Heat wave occuring from February 05 2012 to February 20 2012 at 61.0°N 273.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland
  • United States

Duration: 16 days

Time span: February 05 2012 to February 20 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 10.5 °C
  • Mean temperature: -17.0 °C
  • Maximum temperature anomaly: 20.6 °C
  • Maximum temperature: 1.2 °C

Event center: 61.0°N 273.0°E

Area affected: 4742218 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-Feb-05_to_2012-Feb-20_273.0_61.0

Heat wave occuring from February 02 2012 to February 06 2012 at 48.5°N 271.5°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: February 02 2012 to February 06 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 12.3 °C
  • Mean temperature: -6.1 °C
  • Maximum temperature anomaly: 18.4 °C
  • Maximum temperature: -0.6 °C

Event center: 48.5°N 271.5°E

Area affected: 206798 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-Feb-02_to_2012-Feb-06_271.5_48.5