Heat wave occuring from September 12 2021 to November 18 2021 at 57.5°N 278.5°E

Download data: JSON

Event type: Heat wave

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

  • Belize
  • Canada
  • Colombia
  • El Salvador
  • Greenland
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua
  • United States

Duration: 68 days

Time span: September 12 2021 to November 18 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 7.1 °C
  • Mean temperature: 2.7 °C
  • Maximum temperature anomaly: 20.3 °C
  • Maximum temperature: 32.0 °C

Event center: 57.5°N 278.5°E

Area affected: 24407429 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_2021-Sep-12_to_2021-Nov-18_278.5_57.5

Heat wave occuring from September 12 2021 to September 15 2021 at 41.0°N 276.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 4 days

Time span: September 12 2021 to September 15 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 25.0 °C
  • Maximum temperature anomaly: 8.8 °C
  • Maximum temperature: 27.4 °C

Event center: 41.0°N 276.0°E

Area affected: 153499 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_2021-Sep-12_to_2021-Sep-15_276.0_41.0

Heat wave occuring from September 08 2021 to September 17 2021 at 69.5°N 224.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 10 days

Time span: September 08 2021 to September 17 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 6.9 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 11.1 °C

Event center: 69.5°N 224.0°E

Area affected: 80690 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_2021-Sep-08_to_2021-Sep-17_224.0_69.5

Heat wave occuring from September 05 2021 to September 13 2021 at 84.0°N 326.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 9 days

Time span: September 05 2021 to September 13 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: -2.9 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: -0.6 °C

Event center: 84.0°N 326.0°E

Area affected: 86459 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_2021-Sep-05_to_2021-Sep-13_326.0_84.0

Heat wave occuring from September 04 2021 to September 11 2021 at 59.5°N 294.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 8 days

Time span: September 04 2021 to September 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.2 °C
  • Mean temperature: 10.0 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 14.8 °C

Event center: 59.5°N 294.5°E

Area affected: 427303 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_2021-Sep-04_to_2021-Sep-11_294.5_59.5

Heat wave occuring from September 03 2021 to September 09 2021 at 60.5°N 282.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 7 days

Time span: September 03 2021 to September 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 11.1 °C
  • Maximum temperature anomaly: 6.4 °C
  • Maximum temperature: 14.5 °C

Event center: 60.5°N 282.0°E

Area affected: 169463 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_2021-Sep-03_to_2021-Sep-09_282.0_60.5

Heat wave occuring from September 03 2021 to September 08 2021 at 67.0°N 252.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 6 days

Time span: September 03 2021 to September 08 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 9.4 °C
  • Maximum temperature anomaly: 7.6 °C
  • Maximum temperature: 12.1 °C

Event center: 67.0°N 252.0°E

Area affected: 96141 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_2021-Sep-03_to_2021-Sep-08_252.0_67.0

Heat wave occuring from September 03 2021 to September 10 2021 at 67.5°N 264.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 8 days

Time span: September 03 2021 to September 10 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 9.3 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 11.8 °C

Event center: 67.5°N 264.5°E

Area affected: 92286 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_2021-Sep-03_to_2021-Sep-10_264.5_67.5

Heat wave occuring from August 30 2021 to September 04 2021 at 81.5°N 283.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 6 days

Time span: August 30 2021 to September 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 0.4 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 6.0 °C

Event center: 81.5°N 283.0°E

Area affected: 107309 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_2021-Aug-30_to_2021-Sep-04_283.0_81.5

Heat wave occuring from August 30 2021 to September 04 2021 at 83.0°N 313.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 6 days

Time span: August 30 2021 to September 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: -0.1 °C
  • Maximum temperature anomaly: 8.4 °C
  • Maximum temperature: 5.2 °C

Event center: 83.0°N 313.5°E

Area affected: 75164 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_2021-Aug-30_to_2021-Sep-04_313.5_83.0