Heat wave occuring from February 22 2018 to February 24 2018 at 19.0°N 48.5°E

Download data: JSON

Event type: Heat wave

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

  • Saudi Arabia
  • Yemen

Duration: 3 days

Time span: February 22 2018 to February 24 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 28.2 °C
  • Maximum temperature anomaly: 6.3 °C
  • Maximum temperature: 30.1 °C

Event center: 19.0°N 48.5°E

Area affected: 64701 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_2018-Feb-22_to_2018-Feb-24_48.5_19.0

Cold spell occuring from December 12 2017 to December 18 2017 at 24.0°N 203.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 7 days

Time span: December 12 2017 to December 18 2017

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 21.0 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 14.3 °C

Event center: 24.0°N 203.5°E

Area affected: 964011 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_2017-Dec-12_to_2017-Dec-18_203.5_24.0

Cold spell occuring from February 22 2018 to February 25 2018 at 4.5°N 21.5°E

Download data: JSON

Event type: Cold spell

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

  • Central African Republic
  • Congo DRC

Duration: 4 days

Time span: February 22 2018 to February 25 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -2.6 °C
  • Mean temperature: 24.9 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 23.2 °C

Event center: 4.5°N 21.5°E

Area affected: 52385 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_2018-Feb-22_to_2018-Feb-25_21.5_4.5

Heat wave occuring from February 21 2018 to February 25 2018 at 17.5°N 43.0°E

Download data: JSON

Event type: Heat wave

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

  • Saudi Arabia
  • Yemen

Duration: 5 days

Time span: February 21 2018 to February 25 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 4.0 °C
  • Maximum temperature: 30.0 °C

Event center: 17.5°N 43.0°E

Area affected: 81819 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_2018-Feb-21_to_2018-Feb-25_43.0_17.5

Cold spell occuring from December 12 2017 to December 17 2017 at 18.0°N 344.5°E

Download data: JSON

Event type: Cold spell

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

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

Duration: 6 days

Time span: December 12 2017 to December 17 2017

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 20.3 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 13.3 °C

Event center: 18.0°N 344.5°E

Area affected: 628094 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_2017-Dec-12_to_2017-Dec-17_344.5_18.0

Cold spell occuring from February 21 2018 to March 15 2018 at 55.5°N 21.5°E

Download data: JSON

Event type: Cold spell

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

  • Albania
  • Austria
  • Azores
  • Belarus
  • Belgium
  • Bosnia and Herzegovina
  • Bulgaria
  • Croatia
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • Germany
  • Greece
  • Hungary
  • Ireland
  • Italy
  • Kazakhstan
  • Latvia
  • Lithuania
  • Luxembourg
  • Moldova
  • Montenegro
  • Netherlands
  • North Macedonia
  • Norway
  • Poland
  • Romania
  • Russian Federation
  • Serbia
  • Slovakia
  • Slovenia
  • Sweden
  • Switzerland
  • Turkiye
  • Ukraine
  • United Kingdom

Duration: 23 days

Time span: February 21 2018 to March 15 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -9.7 °C
  • Minimum temperature anomaly: -20.9 °C
  • Minimum temperature: -33.6 °C

Event center: 55.5°N 21.5°E

Area affected: 14330444 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_2018-Feb-21_to_2018-Mar-15_21.5_55.5

Heat wave occuring from December 11 2017 to December 15 2017 at 53.0°N 130.5°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 5 days

Time span: December 11 2017 to December 15 2017

Statistics over entire affected area:

  • Mean temperature anomaly: 8.5 °C
  • Mean temperature: -17.5 °C
  • Maximum temperature anomaly: 12.7 °C
  • Maximum temperature: -14.7 °C

Event center: 53.0°N 130.5°E

Area affected: 59889 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_2017-Dec-11_to_2017-Dec-15_130.5_53.0

Heat wave occuring from December 11 2017 to December 14 2017 at 50.0°N 135.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation

Duration: 4 days

Time span: December 11 2017 to December 14 2017

Statistics over entire affected area:

  • Mean temperature anomaly: 9.0 °C
  • Mean temperature: -14.2 °C
  • Maximum temperature anomaly: 13.4 °C
  • Maximum temperature: -5.2 °C

Event center: 50.0°N 135.0°E

Area affected: 152087 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_2017-Dec-11_to_2017-Dec-14_135.0_50.0

Heat wave occuring from December 11 2017 to December 13 2017 at 22.0°N 29.5°E

Download data: JSON

Event type: Heat wave

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

  • Egypt
  • Sudan

Duration: 3 days

Time span: December 11 2017 to December 13 2017

Statistics over entire affected area:

  • Mean temperature anomaly: 5.4 °C
  • Mean temperature: 22.6 °C
  • Maximum temperature anomaly: 7.0 °C
  • Maximum temperature: 25.8 °C

Event center: 22.0°N 29.5°E

Area affected: 205620 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_2017-Dec-11_to_2017-Dec-13_29.5_22.0

Cold spell occuring from February 21 2018 to February 23 2018 at 33.0°N 261.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 3 days

Time span: February 21 2018 to February 23 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -10.4 °C
  • Mean temperature: 0.5 °C
  • Minimum temperature anomaly: -13.4 °C
  • Minimum temperature: -4.4 °C

Event center: 33.0°N 261.5°E

Area affected: 87865 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_2018-Feb-21_to_2018-Feb-23_261.5_33.0