Category: Heat waves affecting United States

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: May 21 2021 to May 25 2021

Statistics over entire affected area:

• Mean temperature anomaly: 6.4 °C
• Mean temperature: 23.0 °C
• Maximum temperature anomaly: 8.5 °C
• Maximum temperature: 25.0 °C

Event center: 44.5°N 265.5°E

Area affected: 179816 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-May-21_to_2021-May-25_265.5_44.5

Download data: JSON

Event type: Heat wave

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

• United States

Duration: 10 days

Time span: May 20 2021 to May 29 2021

Statistics over entire affected area:

• Mean temperature anomaly: 3.9 °C
• Mean temperature: 25.9 °C
• Maximum temperature anomaly: 5.8 °C
• Maximum temperature: 28.6 °C

Event center: 35.5°N 275.0°E

Area affected: 319066 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-May-20_to_2021-May-29_275.0_35.5

Download data: JSON

Event type: Heat wave

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

• United States

Duration: 6 days

Time span: May 14 2021 to May 19 2021

Statistics over entire affected area:

• Mean temperature anomaly: 2.8 °C
• Mean temperature: 12.5 °C
• Maximum temperature anomaly: 4.6 °C
• Maximum temperature: 16.5 °C

Event center: 43.0°N 291.5°E

Area affected: 61269 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-May-14_to_2021-May-19_291.5_43.0

Download data: JSON

Event type: Heat wave

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

• United States

Duration: 20 days

Time span: May 12 2021 to May 31 2021

Statistics over entire affected area:

• Mean temperature anomaly: 3.0 °C
• Mean temperature: 6.2 °C
• Maximum temperature anomaly: 10.5 °C
• Maximum temperature: 18.6 °C

Event center: 63.0°N 192.5°E

Area affected: 1056760 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-May-12_to_2021-May-31_192.5_63.0

Download data: JSON

Event type: Heat wave

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

• United States

Duration: 3 days

Time span: April 30 2021 to May 02 2021

Statistics over entire affected area:

• Mean temperature anomaly: 9.3 °C
• Mean temperature: 19.5 °C
• Maximum temperature anomaly: 14.2 °C
• Maximum temperature: 23.6 °C

Event center: 42.5°N 258.5°E

Area affected: 164787 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-Apr-30_to_2021-May-02_258.5_42.5

Download data: JSON

Event type: Heat wave

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

• United States

Duration: 3 days

Time span: April 28 2021 to April 30 2021

Statistics over entire affected area:

• Mean temperature anomaly: 5.6 °C
• Mean temperature: 21.1 °C
• Maximum temperature anomaly: 8.7 °C
• Maximum temperature: 25.8 °C

Event center: 39.5°N 285.5°E

Area affected: 139991 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-Apr-28_to_2021-Apr-30_285.5_39.5

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 26 2021 to April 29 2021

Statistics over entire affected area:

• Mean temperature anomaly: 1.3 °C
• Mean temperature: 3.8 °C
• Maximum temperature anomaly: 1.8 °C
• Maximum temperature: 4.3 °C

Event center: 53.0°N 170.0°E

Area affected: 104654 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-Apr-26_to_2021-Apr-29_170.0_53.0