Cold spell occuring from April 02 2011 to April 07 2011 at 14.5°N 352.0°E

Download data: JSON

Event type: Cold spell

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

  • Guinea
  • Mali

Duration: 6 days

Time span: April 02 2011 to April 07 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 29.9 °C
  • Minimum temperature anomaly: -4.5 °C
  • Minimum temperature: 27.6 °C

Event center: 14.5°N 352.0°E

Area affected: 111233 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-02_to_2011-Apr-07_352.0_14.5

Heat wave occuring from March 30 2011 to April 24 2011 at 42.5°N 1.5°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Algeria
  • Andorra
  • Austria
  • Bosnia and Herzegovina
  • Burkina Faso
  • Canarias
  • Croatia
  • Czech Republic
  • Denmark
  • France
  • Germany
  • Hungary
  • Ireland
  • Italy
  • Luxembourg
  • Mali
  • Mauritania
  • Montenegro
  • Morocco
  • Niger
  • Poland
  • Portugal
  • Slovenia
  • Spain
  • Switzerland
  • Tunisia
  • United Kingdom

Duration: 26 days

Time span: March 30 2011 to April 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 18.0 °C
  • Maximum temperature anomaly: 11.4 °C
  • Maximum temperature: 38.9 °C

Event center: 42.5°N 361.5°E

Area affected: 8959975 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-Mar-30_to_2011-Apr-24_1.5_42.5

Heat wave occuring from March 24 2011 to April 02 2011 at 14.5°N 348.0°E

Download data: JSON

Event type: Heat wave

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

  • Mali
  • Mauritania
  • Senegal

Duration: 10 days

Time span: March 24 2011 to April 02 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 32.7 °C
  • Maximum temperature anomaly: 6.5 °C
  • Maximum temperature: 37.2 °C

Event center: 14.5°N 348.0°E

Area affected: 830219 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-Mar-24_to_2011-Apr-02_348.0_14.5

Heat wave occuring from March 01 2011 to March 20 2011 at 21.0°N 6.0°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Algeria
  • Burkina Faso
  • Cameroon
  • Chad
  • Ghana
  • Greece
  • Guinea
  • Italy
  • Libya
  • Mali
  • Mauritania
  • Niger
  • Nigeria
  • North Macedonia

Duration: 20 days

Time span: March 01 2011 to March 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 12.5 °C
  • Maximum temperature: 35.7 °C

Event center: 21.0°N 6.0°E

Area affected: 5064525 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-Mar-01_to_2011-Mar-20_6.0_21.0

Cold spell occuring from March 01 2011 to March 18 2011 at 33.5°N 335.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Azores
  • Canarias
  • Faroe Islands
  • Greenland
  • Iceland
  • Ireland
  • Madeira
  • Mali
  • Mauritania
  • Morocco
  • United Kingdom

Duration: 18 days

Time span: March 01 2011 to March 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 7.1 °C
  • Minimum temperature anomaly: -15.6 °C
  • Minimum temperature: -47.3 °C

Event center: 33.5°N 335.5°E

Area affected: 9945656 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-Mar-01_to_2011-Mar-18_335.5_33.5

Heat wave occuring from February 17 2011 to February 23 2011 at 14.0°N 4.0°E

Download data: JSON

Event type: Heat wave

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

  • Benin
  • Burkina Faso
  • Côte d’Ivoire
  • Ghana
  • Mali
  • Niger
  • Togo

Duration: 7 days

Time span: February 17 2011 to February 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 32.0 °C
  • Maximum temperature anomaly: 5.4 °C
  • Maximum temperature: 35.3 °C

Event center: 14.0°N 4.0°E

Area affected: 379568 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-Feb-17_to_2011-Feb-23_4.0_14.0

Heat wave occuring from February 10 2011 to February 13 2011 at 15.5°N 3.5°E

Download data: JSON

Event type: Heat wave

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

  • Mali
  • Niger

Duration: 4 days

Time span: February 10 2011 to February 13 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 28.6 °C
  • Maximum temperature anomaly: 5.7 °C
  • Maximum temperature: 30.7 °C

Event center: 15.5°N 3.5°E

Area affected: 71153 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-Feb-10_to_2011-Feb-13_3.5_15.5

Cold spell occuring from February 10 2011 to February 17 2011 at 14.5°N 346.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Gambia
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Senegal

Duration: 8 days

Time span: February 10 2011 to February 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 20.4 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 13.9 °C

Event center: 14.5°N 346.0°E

Area affected: 852610 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-Feb-10_to_2011-Feb-17_346.0_14.5

Cold spell occuring from February 01 2011 to February 13 2011 at 25.5°N 351.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Burkina Faso
  • Mali
  • Mauritania
  • Morocco

Duration: 13 days

Time span: February 01 2011 to February 13 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: 13.8 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 6.1 °C

Event center: 25.5°N 351.0°E

Area affected: 2213910 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-Feb-01_to_2011-Feb-13_351.0_25.5

Heat wave occuring from January 20 2011 to February 09 2011 at 22.5°N 359.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Benin
  • Burkina Faso
  • Cameroon
  • Chad
  • Côte d’Ivoire
  • Egypt
  • Eritrea
  • Ethiopia
  • Ghana
  • Guinea
  • Libya
  • Mali
  • Mauritania
  • Niger
  • Nigeria
  • Saudi Arabia
  • Senegal
  • Sierra Leone
  • Sudan
  • Togo
  • Tunisia

Duration: 21 days

Time span: January 20 2011 to February 09 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 5.6 °C
  • Mean temperature: 23.2 °C
  • Maximum temperature anomaly: 11.7 °C
  • Maximum temperature: 32.9 °C

Event center: 22.5°N 1.0°W

Area affected: 9975057 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-Jan-20_to_2011-Feb-09_359.0_22.5