Category: Extremes affecting Niger

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

Heat wave occuring from May 14 2011 to May 22 2011 at 16.0°N 1.5°E

Download data: JSON

Event type: Heat wave

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

  • Mali
  • Niger

Duration: 9 days

Time span: May 14 2011 to May 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.0 °C
  • Mean temperature: 37.8 °C
  • Maximum temperature anomaly: 2.8 °C
  • Maximum temperature: 39.1 °C

Event center: 16.0°N 1.5°E

Area affected: 88998 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-May-14_to_2011-May-22_1.5_16.0

Heat wave occuring from May 02 2011 to May 10 2011 at 17.5°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Mali
  • Niger

Duration: 9 days

Time span: May 02 2011 to May 10 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.8 °C
  • Mean temperature: 37.6 °C
  • Maximum temperature anomaly: 4.4 °C
  • Maximum temperature: 39.5 °C

Event center: 17.5°N 359.5°E

Area affected: 269168 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-May-02_to_2011-May-10_359.5_17.5

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

Heat wave occuring from April 25 2011 to April 28 2011 at 16.0°N 11.5°E

Download data: JSON

Event type: Heat wave

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

  • Niger

Duration: 4 days

Time span: April 25 2011 to April 28 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.1 °C
  • Mean temperature: 34.5 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 36.2 °C

Event center: 16.0°N 11.5°E

Area affected: 59232 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-25_to_2011-Apr-28_11.5_16.0

Heat wave occuring from April 24 2011 to April 29 2011 at 16.5°N 18.5°E

Download data: JSON

Event type: Heat wave

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

  • Chad
  • Niger

Duration: 6 days

Time span: April 24 2011 to April 29 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 35.2 °C
  • Maximum temperature anomaly: 5.2 °C
  • Maximum temperature: 37.1 °C

Event center: 16.5°N 18.5°E

Area affected: 381981 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-24_to_2011-Apr-29_18.5_16.5

Heat wave occuring from April 20 2011 to April 26 2011 at 20.5°N 10.0°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Niger

Duration: 7 days

Time span: April 20 2011 to April 26 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 33.5 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 36.2 °C

Event center: 20.5°N 10.0°E

Area affected: 221536 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-20_to_2011-Apr-26_10.0_20.5

Heat wave occuring from April 17 2011 to April 21 2011 at 14.0°N 7.0°E

Download data: JSON

Event type: Heat wave

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

  • Niger

Duration: 5 days

Time span: April 17 2011 to April 21 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.3 °C
  • Mean temperature: 35.5 °C
  • Maximum temperature anomaly: 3.5 °C
  • Maximum temperature: 36.8 °C

Event center: 14.0°N 7.0°E

Area affected: 71605 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-17_to_2011-Apr-21_7.0_14.0

Cold spell occuring from April 07 2011 to April 12 2011 at 15.0°N 7.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Libya
  • Niger

Duration: 6 days

Time span: April 07 2011 to April 12 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 23.4 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 15.4 °C

Event center: 15.0°N 7.5°E

Area affected: 642904 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_7.5_15.0

Cold spell occuring from April 01 2011 to April 05 2011 at 19.0°N 9.0°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Libya
  • Niger

Duration: 5 days

Time span: April 01 2011 to April 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 12.6 °C

Event center: 19.0°N 9.0°E

Area affected: 413712 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-01_to_2011-Apr-05_9.0_19.0