Cold spell occuring from September 14 2011 to September 18 2011 at 15.0°N 14.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: September 14 2011 to September 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 27.7 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 24.6 °C

Event center: 15.0°N 14.5°E

Area affected: 71861 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-Sep-14_to_2011-Sep-18_14.5_15.0

Cold spell occuring from September 13 2011 to September 19 2011 at 16.5°N 21.5°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Sudan

Duration: 7 days

Time span: September 13 2011 to September 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 26.5 °C
  • Minimum temperature anomaly: -5.1 °C
  • Minimum temperature: 22.0 °C

Event center: 16.5°N 21.5°E

Area affected: 122250 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-Sep-13_to_2011-Sep-19_21.5_16.5

Cold spell occuring from August 16 2011 to August 22 2011 at 20.5°N 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Niger
  • Nigeria

Duration: 7 days

Time span: August 16 2011 to August 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 27.3 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 21.7 °C

Event center: 20.5°N 16.0°E

Area affected: 586124 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-Aug-16_to_2011-Aug-22_16.0_20.5

Cold spell occuring from August 14 2011 to August 19 2011 at 18.0°N 23.0°E

Download data: JSON

Event type: Cold spell

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

  • Chad
  • Sudan

Duration: 6 days

Time span: August 14 2011 to August 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.1 °C
  • Mean temperature: 27.0 °C
  • Minimum temperature anomaly: -4.6 °C
  • Minimum temperature: 23.1 °C

Event center: 18.0°N 23.0°E

Area affected: 209519 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-Aug-14_to_2011-Aug-19_23.0_18.0

Cold spell occuring from June 24 2011 to July 02 2011 at 26.5°N 11.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Chad
  • Egypt
  • Libya
  • Niger
  • Tunisia

Duration: 9 days

Time span: June 24 2011 to July 02 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 28.0 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 22.0 °C

Event center: 26.5°N 11.5°E

Area affected: 1694019 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-Jun-24_to_2011-Jul-02_11.5_26.5

Cold spell occuring from May 25 2011 to May 29 2011 at 13.5°N 14.0°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Niger
  • Nigeria

Duration: 5 days

Time span: May 25 2011 to May 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.9 °C
  • Mean temperature: 30.9 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 28.9 °C

Event center: 13.5°N 14.0°E

Area affected: 51150 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-May-25_to_2011-May-29_14.0_13.5

Cold spell occuring from April 30 2011 to May 29 2011 at 21.5°N 37.5°E

Download data: JSON

Event type: Cold spell

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

  • Austria
  • Belarus
  • Bosnia and Herzegovina
  • Bulgaria
  • Chad
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Djibouti
  • Egypt
  • Eritrea
  • Estonia
  • Ethiopia
  • Finland
  • Georgia
  • Germany
  • Greece
  • Hungary
  • Iraq
  • Israel
  • Jordan
  • Latvia
  • Lebanon
  • Libya
  • Lithuania
  • Moldova
  • Niger
  • North Macedonia
  • Palestinian Territory
  • Poland
  • Romania
  • Russian Federation
  • Saudi Arabia
  • Serbia
  • Slovakia
  • Slovenia
  • Somalia
  • Sudan
  • Sweden
  • Syria
  • Turkiye
  • Ukraine
  • Yemen

Duration: 30 days

Time span: April 30 2011 to May 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 19.9 °C
  • Minimum temperature anomaly: -11.0 °C
  • Minimum temperature: 0.0 °C

Event center: 21.5°N 37.5°E

Area affected: 13397634 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-30_to_2011-May-29_37.5_21.5

Cold spell occuring from March 26 2011 to March 31 2011 at 11.5°N 18.5°E

Download data: JSON

Event type: Cold spell

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

  • Central African Republic
  • Chad
  • Sudan

Duration: 6 days

Time span: March 26 2011 to March 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 25.6 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 16.0 °C

Event center: 11.5°N 18.5°E

Area affected: 622429 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-26_to_2011-Mar-31_18.5_11.5

Cold spell occuring from March 11 2011 to April 27 2011 at 12.5°N 51.5°E

Download data: JSON

Event type: Cold spell

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

  • Cameroon
  • Chad
  • Djibouti
  • Egypt
  • Eritrea
  • Ethiopia
  • Libya
  • Niger
  • Nigeria
  • Oman
  • Saudi Arabia
  • Somalia
  • Sudan
  • Yemen

Duration: 48 days

Time span: March 11 2011 to April 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 25.1 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 13.7 °C

Event center: 12.5°N 51.5°E

Area affected: 5041771 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-11_to_2011-Apr-27_51.5_12.5

Cold spell occuring from March 08 2011 to March 26 2011 at 12.0°N 39.0°E

Download data: JSON

Event type: Cold spell

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

  • Central African Republic
  • Chad
  • Eritrea
  • Ethiopia
  • South Sudan
  • Sudan

Duration: 19 days

Time span: March 08 2011 to March 26 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 23.5 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 9.4 °C

Event center: 12.0°N 39.0°E

Area affected: 1463307 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-08_to_2011-Mar-26_39.0_12.0