Author: WEXA

Heat wave occuring from April 25 2026 to April 28 2026 at 67.0°N 196.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 4 days

Time span: April 25 2026 to April 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 1.1 °C
  • Maximum temperature anomaly: 7.6 °C
  • Maximum temperature: 4.9 °C

Event center: 67.0°N 196.5°E

Area affected: 61284 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_2026-Apr-25_to_2026-Apr-28_196.5_67.0

Heat wave occuring from April 25 2026 to April 28 2026 at 3.5°N 309.0°E

Download data: JSON

Event type: Heat wave

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

  • Brazil
  • French Guiana

Duration: 4 days

Time span: April 25 2026 to April 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 1.1 °C
  • Mean temperature: 27.2 °C
  • Maximum temperature anomaly: 1.7 °C
  • Maximum temperature: 27.8 °C

Event center: 3.5°N 309.0°E

Area affected: 77138 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_2026-Apr-25_to_2026-Apr-28_309.0_3.5

Cold spell occuring from April 25 2026 to April 27 2026 at 24.5°N 22.5°E

Download data: JSON

Event type: Cold spell

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

  • Libya

Duration: 3 days

Time span: April 25 2026 to April 27 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.0 °C
  • Mean temperature: 19.7 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 18.3 °C

Event center: 24.5°N 22.5°E

Area affected: 92209 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_2026-Apr-25_to_2026-Apr-27_22.5_24.5

Cold spell occuring from April 25 2026 to May 02 2026 at -82.5°S 290.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 8 days

Time span: April 25 2026 to May 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: -39.4 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -46.5 °C

Event center: -82.5°S 290.0°E

Area affected: 129723 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_2026-Apr-25_to_2026-May-02_290.0_-82.5

Cold spell occuring from April 24 2026 to April 30 2026 at 18.0°N 343.5°E

Download data: JSON

Event type: Cold spell

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

  • Mauritania
  • Senegal

Duration: 7 days

Time span: April 24 2026 to April 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 23.3 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 17.4 °C

Event center: 18.0°N 343.5°E

Area affected: 197684 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_2026-Apr-24_to_2026-Apr-30_343.5_18.0

Heat wave occuring from April 24 2026 to April 28 2026 at 23.5°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Algeria
  • Mali

Duration: 5 days

Time span: April 24 2026 to April 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 34.3 °C
  • Maximum temperature anomaly: 5.9 °C
  • Maximum temperature: 36.1 °C

Event center: 23.5°N 359.5°E

Area affected: 111224 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_2026-Apr-24_to_2026-Apr-28_359.5_23.5

Heat wave occuring from April 24 2026 to April 29 2026 at 43.5°N 14.0°E

Download data: JSON

Event type: Heat wave

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

  • Italy

Duration: 6 days

Time span: April 24 2026 to April 29 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 2.2 °C
  • Mean temperature: 17.6 °C
  • Maximum temperature anomaly: 3.6 °C
  • Maximum temperature: 18.7 °C

Event center: 43.5°N 14.0°E

Area affected: 92726 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_2026-Apr-24_to_2026-Apr-29_14.0_43.5

Heat wave occuring from April 24 2026 to April 28 2026 at 65.5°N 192.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 5 days

Time span: April 24 2026 to April 28 2026

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 0.3 °C
  • Maximum temperature anomaly: 7.4 °C
  • Maximum temperature: 3.2 °C

Event center: 65.5°N 192.5°E

Area affected: 62396 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_2026-Apr-24_to_2026-Apr-28_192.5_65.5

Cold spell occuring from April 23 2026 to April 25 2026 at -7.0°S 16.0°E

Download data: JSON

Event type: Cold spell

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

  • Angola
  • Congo DRC

Duration: 3 days

Time span: April 23 2026 to April 25 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -1.8 °C
  • Mean temperature: 22.0 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: 19.1 °C

Event center: -7.0°S 16.0°E

Area affected: 73721 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_2026-Apr-23_to_2026-Apr-25_16.0_-7.0

Cold spell occuring from April 23 2026 to May 02 2026 at -74.0°S 166.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 10 days

Time span: April 23 2026 to May 02 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.8 °C
  • Mean temperature: -29.6 °C
  • Minimum temperature anomaly: -16.5 °C
  • Minimum temperature: -56.0 °C

Event center: -74.0°S 166.0°E

Area affected: 952244 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_2026-Apr-23_to_2026-May-02_166.0_-74.0