Category: Extremes affecting Sierra Leone

Cold spell occuring from November 27 2012 to December 09 2012 at 32.5°N 354.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Andorra
  • France
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Mali
  • Mauritania
  • Morocco
  • Portugal
  • Senegal
  • Sierra Leone
  • Spain
  • Tunisia

Duration: 13 days

Time span: November 27 2012 to December 09 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 13.0 °C
  • Minimum temperature anomaly: -10.8 °C
  • Minimum temperature: -11.5 °C

Event center: 32.5°N 354.5°E

Area affected: 4650020 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_2012-Nov-27_to_2012-Dec-09_354.5_32.5

Cold spell occuring from September 16 2012 to September 26 2012 at 17.0°N 356.5°E

Download data: JSON

Event type: Cold spell

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

  • Burkina Faso
  • Côte d’Ivoire
  • Gambia
  • Guinea
  • Guinea-Bissau
  • Liberia
  • Mali
  • Mauritania
  • Senegal
  • Sierra Leone

Duration: 11 days

Time span: September 16 2012 to September 26 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 26.9 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 20.0 °C

Event center: 17.0°N 356.5°E

Area affected: 1352258 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_2012-Sep-16_to_2012-Sep-26_356.5_17.0

Cold spell occuring from August 21 2012 to August 28 2012 at 6.5°N 349.0°E

Download data: JSON

Event type: Cold spell

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

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 8 days

Time span: August 21 2012 to August 28 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 23.0 °C
  • Minimum temperature anomaly: -2.0 °C
  • Minimum temperature: 20.3 °C

Event center: 6.5°N 349.0°E

Area affected: 162477 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_2012-Aug-21_to_2012-Aug-28_349.0_6.5

Cold spell occuring from July 02 2012 to July 06 2012 at 7.0°N 349.0°E

Download data: JSON

Event type: Cold spell

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

  • Liberia
  • Sierra Leone

Duration: 5 days

Time span: July 02 2012 to July 06 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 22.6 °C
  • Minimum temperature anomaly: -2.5 °C
  • Minimum temperature: 20.8 °C

Event center: 7.0°N 349.0°E

Area affected: 55104 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_2012-Jul-02_to_2012-Jul-06_349.0_7.0

Cold spell occuring from June 21 2012 to July 02 2012 at 6.5°N 345.5°E

Download data: JSON

Event type: Cold spell

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

  • Liberia
  • Sierra Leone

Duration: 12 days

Time span: June 21 2012 to July 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -0.9 °C
  • Mean temperature: 25.1 °C
  • Minimum temperature anomaly: -1.9 °C
  • Minimum temperature: 22.5 °C

Event center: 6.5°N 345.5°E

Area affected: 371673 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_2012-Jun-21_to_2012-Jul-02_345.5_6.5

Cold spell occuring from April 25 2012 to May 22 2012 at 4.0°N 326.0°E

Download data: JSON

Event type: Cold spell

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

  • Côte d’Ivoire
  • Ghana
  • Guinea
  • Guinea-Bissau
  • Liberia
  • Mali
  • Senegal
  • Sierra Leone

Duration: 28 days

Time span: April 25 2012 to May 22 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.1 °C
  • Mean temperature: 25.7 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 20.8 °C

Event center: 4.0°N 326.0°E

Area affected: 2677626 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_2012-Apr-25_to_2012-May-22_326.0_4.0

Cold spell occuring from April 10 2012 to April 27 2012 at 10.5°N 341.5°E

Download data: JSON

Event type: Cold spell

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

  • Algeria
  • Burkina Faso
  • Cabo Verde
  • Côte d’Ivoire
  • Guinea
  • Guinea-Bissau
  • Liberia
  • Libya
  • Mali
  • Mauritania
  • Morocco
  • Niger
  • Senegal
  • Sierra Leone
  • Spain
  • Tunisia

Duration: 18 days

Time span: April 10 2012 to April 27 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 20.3 °C
  • Minimum temperature anomaly: -11.2 °C
  • Minimum temperature: -1.5 °C

Event center: 10.5°N 341.5°E

Area affected: 6042281 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_2012-Apr-10_to_2012-Apr-27_341.5_10.5

Cold spell occuring from January 15 2012 to March 19 2012 at 21.0°N 336.0°E

Download data: JSON

Event type: Cold spell

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

  • Afghanistan
  • Albania
  • Algeria
  • Andorra
  • Armenia
  • Austria
  • Azerbaijan
  • Bangladesh
  • Belarus
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Burkina Faso
  • Cabo Verde
  • Canarias
  • China
  • Croatia
  • Czech Republic
  • Côte d’Ivoire
  • Denmark
  • Egypt
  • Estonia
  • Finland
  • France
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Greece
  • Guinea
  • Guinea-Bissau
  • Hungary
  • India
  • Iran
  • Ireland
  • Italy
  • Japan
  • Kazakhstan
  • Kyrgyzstan
  • Latvia
  • Libya
  • Lithuania
  • Luxembourg
  • Madeira
  • Mali
  • Mauritania
  • Moldova
  • Mongolia
  • Montenegro
  • Morocco
  • Nepal
  • Netherlands
  • Niger
  • North Korea
  • North Macedonia
  • Norway
  • Oman
  • Pakistan
  • Poland
  • Portugal
  • Romania
  • Russian Federation
  • Senegal
  • Serbia
  • Sierra Leone
  • Slovakia
  • Slovenia
  • South Korea
  • Spain
  • Sweden
  • Switzerland
  • Tajikistan
  • Tunisia
  • Turkiye
  • Turkmenistan
  • Ukraine
  • United Kingdom
  • Uzbekistan

Duration: 65 days

Time span: January 15 2012 to March 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -6.9 °C
  • Minimum temperature anomaly: -25.5 °C
  • Minimum temperature: -47.7 °C

Event center: 21.0°N 24.0°W

Area affected: 47897737 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_2012-Jan-15_to_2012-Mar-19_336.0_21.0

Heat wave occuring from January 05 2012 to January 15 2012 at 6.0°N 354.5°E

Download data: JSON

Event type: Heat wave

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

  • Côte d’Ivoire
  • Guinea
  • Liberia
  • Sierra Leone

Duration: 11 days

Time span: January 05 2012 to January 15 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 1.5 °C
  • Mean temperature: 27.0 °C
  • Maximum temperature anomaly: 2.3 °C
  • Maximum temperature: 28.8 °C

Event center: 6.0°N 354.5°E

Area affected: 98216 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_2012-Jan-05_to_2012-Jan-15_354.5_6.0

Cold spell occuring from November 13 2011 to April 25 2012 at -21.0°S 333.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Argentina
  • Benin
  • Brazil
  • Cameroon
  • Central African Republic
  • Congo
  • Congo DRC
  • Côte d’Ivoire
  • Gabon
  • Ghana
  • Liberia
  • Namibia
  • Nigeria
  • Paraguay
  • Sierra Leone
  • South Africa
  • South Sudan
  • Togo
  • Uganda

Duration: 165 days

Time span: November 13 2011 to April 25 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 22.4 °C
  • Minimum temperature anomaly: -11.9 °C
  • Minimum temperature: 7.5 °C

Event center: -21.0°S 333.0°E

Area affected: 29177637 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-Nov-13_to_2012-Apr-25_333.0_-21.0