Category: Weather Extremes – all events

Cold spell occuring from December 23 2011 to December 25 2011 at -34.0°S 299.5°E

Download data: JSON

Event type: Cold spell

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

  • Argentina

Duration: 3 days

Time span: December 23 2011 to December 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.5 °C
  • Mean temperature: 18.0 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 15.3 °C

Event center: -34.0°S 299.5°E

Area affected: 94957 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_2011-Dec-23_to_2011-Dec-25_299.5_-34.0

Heat wave occuring from December 22 2011 to December 30 2011 at 49.0°N 144.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 9 days

Time span: December 22 2011 to December 30 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 8.2 °C
  • Mean temperature: -5.3 °C
  • Maximum temperature anomaly: 15.0 °C
  • Maximum temperature: 1.0 °C

Event center: 49.0°N 144.0°E

Area affected: 406037 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_2011-Dec-22_to_2011-Dec-30_144.0_49.0

Heat wave occuring from December 22 2011 to December 31 2011 at 6.0°N 6.0°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Nigeria

Duration: 10 days

Time span: December 22 2011 to December 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 26.2 °C
  • Maximum temperature anomaly: 2.4 °C
  • Maximum temperature: 29.8 °C

Event center: 6.0°N 6.0°E

Area affected: 175468 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_2011-Dec-22_to_2011-Dec-31_6.0_6.0

Heat wave occuring from December 22 2011 to December 24 2011 at -76.0°S 230.0°E

Download data: JSON

Event type: Heat wave

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

  • Antarctica

Duration: 3 days

Time span: December 22 2011 to December 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: -6.8 °C
  • Maximum temperature anomaly: 9.5 °C
  • Maximum temperature: -0.1 °C

Event center: -76.0°S 230.0°E

Area affected: 74764 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_2011-Dec-22_to_2011-Dec-24_230.0_-76.0

Cold spell occuring from December 22 2011 to December 25 2011 at 73.5°N 109.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 4 days

Time span: December 22 2011 to December 25 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -10.2 °C
  • Mean temperature: -38.4 °C
  • Minimum temperature anomaly: -16.1 °C
  • Minimum temperature: -46.6 °C

Event center: 73.5°N 109.5°E

Area affected: 121826 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_2011-Dec-22_to_2011-Dec-25_109.5_73.5

Cold spell occuring from December 22 2011 to December 27 2011 at 67.5°N 144.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation

Duration: 6 days

Time span: December 22 2011 to December 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -9.4 °C
  • Mean temperature: -43.7 °C
  • Minimum temperature anomaly: -13.6 °C
  • Minimum temperature: -49.4 °C

Event center: 67.5°N 144.0°E

Area affected: 69902 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_2011-Dec-22_to_2011-Dec-27_144.0_67.5

Cold spell occuring from December 22 2011 to December 29 2011 at 49.5°N 119.5°E

Download data: JSON

Event type: Cold spell

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

  • China
  • Mongolia
  • Russian Federation

Duration: 8 days

Time span: December 22 2011 to December 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -10.5 °C
  • Mean temperature: -37.4 °C
  • Minimum temperature anomaly: -18.2 °C
  • Minimum temperature: -48.7 °C

Event center: 49.5°N 119.5°E

Area affected: 436248 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_2011-Dec-22_to_2011-Dec-29_119.5_49.5

Cold spell occuring from December 22 2011 to December 26 2011 at 44.0°N 129.0°E

Download data: JSON

Event type: Cold spell

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

  • China

Duration: 5 days

Time span: December 22 2011 to December 26 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -9.4 °C
  • Mean temperature: -24.1 °C
  • Minimum temperature anomaly: -13.9 °C
  • Minimum temperature: -29.7 °C

Event center: 44.0°N 129.0°E

Area affected: 62870 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_2011-Dec-22_to_2011-Dec-26_129.0_44.0

Cold spell occuring from December 22 2011 to February 05 2012 at -63.5°S 5.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica
  • South Georgia and the South Sandwich Islands

Duration: 46 days

Time span: December 22 2011 to February 05 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: -3.8 °C
  • Minimum temperature anomaly: -11.5 °C
  • Minimum temperature: -28.5 °C

Event center: -63.5°S 365.0°E

Area affected: 9343533 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_2011-Dec-22_to_2012-Feb-05_5.0_-63.5

Cold spell occuring from December 22 2011 to December 24 2011 at -37.5°S 292.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina

Duration: 3 days

Time span: December 22 2011 to December 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: 17.5 °C
  • Minimum temperature anomaly: -8.8 °C
  • Minimum temperature: 12.3 °C

Event center: -37.5°S 292.0°E

Area affected: 73101 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_2011-Dec-22_to_2011-Dec-24_292.0_-37.5