Category: Weather Extremes – all events

Cold spell occuring from April 09 2011 to April 15 2011 at -21.0°S 45.0°E

Download data: JSON

Event type: Cold spell

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

  • Madagascar

Duration: 7 days

Time span: April 09 2011 to April 15 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 19.0 °C

Event center: -21.0°S 45.0°E

Area affected: 326368 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-Apr-09_to_2011-Apr-15_45.0_-21.0

Cold spell occuring from April 09 2011 to April 12 2011 at -66.5°S 130.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 4 days

Time span: April 09 2011 to April 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -7.9 °C
  • Mean temperature: -28.0 °C
  • Minimum temperature anomaly: -11.1 °C
  • Minimum temperature: -39.2 °C

Event center: -66.5°S 130.0°E

Area affected: 66748 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-Apr-09_to_2011-Apr-12_130.0_-66.5

Heat wave occuring from April 08 2011 to May 07 2011 at 69.5°N 91.0°E

Download data: JSON

Event type: Heat wave

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

  • China
  • Iran
  • Kazakhstan
  • Kyrgyzstan
  • Mongolia
  • Norway
  • Russian Federation
  • Tajikistan
  • Turkmenistan
  • Uzbekistan

Duration: 30 days

Time span: April 08 2011 to May 07 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 8.2 °C
  • Mean temperature: -2.1 °C
  • Maximum temperature anomaly: 19.3 °C
  • Maximum temperature: 30.4 °C

Event center: 69.5°N 91.0°E

Area affected: 19297857 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-Apr-08_to_2011-May-07_91.0_69.5

Heat wave occuring from April 08 2011 to April 11 2011 at 52.5°N 278.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 4 days

Time span: April 08 2011 to April 11 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 7.6 °C
  • Mean temperature: 4.9 °C
  • Maximum temperature anomaly: 11.6 °C
  • Maximum temperature: 7.0 °C

Event center: 52.5°N 278.0°E

Area affected: 97318 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-Apr-08_to_2011-Apr-11_278.0_52.5

Heat wave occuring from April 08 2011 to April 10 2011 at -29.5°S 17.5°E

Download data: JSON

Event type: Heat wave

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

  • Namibia
  • South Africa

Duration: 3 days

Time span: April 08 2011 to April 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: 30.6 °C

Event center: -29.5°S 17.5°E

Area affected: 83507 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-Apr-08_to_2011-Apr-10_17.5_-29.5

Heat wave occuring from April 08 2011 to April 11 2011 at -44.5°S 289.0°E

Download data: JSON

Event type: Heat wave

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

  • Argentina
  • Chile

Duration: 4 days

Time span: April 08 2011 to April 11 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 15.1 °C
  • Maximum temperature anomaly: 9.5 °C
  • Maximum temperature: 21.2 °C

Event center: -44.5°S 289.0°E

Area affected: 76168 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-Apr-08_to_2011-Apr-11_289.0_-44.5

Cold spell occuring from April 08 2011 to April 16 2011 at 69.0°N 232.0°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: April 08 2011 to April 16 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -22.3 °C
  • Minimum temperature anomaly: -16.1 °C
  • Minimum temperature: -33.2 °C

Event center: 69.0°N 232.0°E

Area affected: 1508156 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-Apr-08_to_2011-Apr-16_232.0_69.0

Cold spell occuring from April 08 2011 to April 10 2011 at -10.0°S 308.0°E

Download data: JSON

Event type: Cold spell

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

  • Brazil

Duration: 3 days

Time span: April 08 2011 to April 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 23.6 °C
  • Minimum temperature anomaly: -2.2 °C
  • Minimum temperature: 22.5 °C

Event center: -10.0°S 308.0°E

Area affected: 94687 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-Apr-08_to_2011-Apr-10_308.0_-10.0

Heat wave occuring from April 07 2011 to April 10 2011 at 66.0°N 345.0°E

Download data: JSON

Event type: Heat wave

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

  • Iceland

Duration: 4 days

Time span: April 07 2011 to April 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 5.4 °C
  • Maximum temperature anomaly: 9.6 °C
  • Maximum temperature: 10.8 °C

Event center: 66.0°N 345.0°E

Area affected: 136238 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-Apr-07_to_2011-Apr-10_345.0_66.0

Cold spell occuring from April 07 2011 to April 12 2011 at 35.5°N 247.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 6 days

Time span: April 07 2011 to April 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -8.2 °C
  • Mean temperature: 4.0 °C
  • Minimum temperature anomaly: -16.4 °C
  • Minimum temperature: -11.4 °C

Event center: 35.5°N 247.0°E

Area affected: 645104 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-Apr-07_to_2011-Apr-12_247.0_35.5