Category: Extremes affecting United States

Heat wave occuring from April 09 2020 to April 11 2020 at 46.0°N 240.0°E

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 09 2020 to April 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.4 °C
  • Mean temperature: 11.5 °C
  • Maximum temperature anomaly: 8.1 °C
  • Maximum temperature: 19.1 °C

Event center: 46.0°N 240.0°E

Area affected: 51904 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_2020-Apr-09_to_2020-Apr-11_240.0_46.0

Cold spell occuring from April 07 2020 to April 21 2020 at 24.0°N 252.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 15 days

Time span: April 07 2020 to April 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 15.8 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: -2.7 °C

Event center: 24.0°N 252.5°E

Area affected: 506770 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_2020-Apr-07_to_2020-Apr-21_252.5_24.0

Heat wave occuring from April 07 2020 to April 10 2020 at 31.5°N 279.0°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 07 2020 to April 10 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.1 °C
  • Mean temperature: 22.7 °C
  • Maximum temperature anomaly: 7.2 °C
  • Maximum temperature: 26.1 °C

Event center: 31.5°N 279.0°E

Area affected: 96371 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_2020-Apr-07_to_2020-Apr-10_279.0_31.5

Heat wave occuring from April 06 2020 to April 08 2020 at 38.0°N 256.0°E

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 06 2020 to April 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.5 °C
  • Mean temperature: 17.3 °C
  • Maximum temperature anomaly: 8.5 °C
  • Maximum temperature: 19.8 °C

Event center: 38.0°N 256.0°E

Area affected: 84470 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_2020-Apr-06_to_2020-Apr-08_256.0_38.0

Heat wave occuring from March 30 2020 to April 11 2020 at 83.0°N 284.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland
  • Russian Federation
  • United States

Duration: 13 days

Time span: March 30 2020 to April 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: -14.7 °C
  • Maximum temperature anomaly: 19.2 °C
  • Maximum temperature: -4.2 °C

Event center: 83.0°N 284.0°E

Area affected: 2739533 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_2020-Mar-30_to_2020-Apr-11_284.0_83.0

Heat wave occuring from March 30 2020 to April 04 2020 at 62.0°N 184.5°E

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: March 30 2020 to April 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 2.5 °C
  • Maximum temperature anomaly: 9.7 °C
  • Maximum temperature: 6.2 °C

Event center: 62.0°N 184.5°E

Area affected: 599743 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_2020-Mar-30_to_2020-Apr-04_184.5_62.0

Heat wave occuring from March 30 2020 to April 08 2020 at 46.5°N 162.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation
  • United States

Duration: 10 days

Time span: March 30 2020 to April 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 3.8 °C
  • Maximum temperature anomaly: 5.8 °C
  • Maximum temperature: 11.3 °C

Event center: 46.5°N 162.0°E

Area affected: 901375 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_2020-Mar-30_to_2020-Apr-08_162.0_46.5

Cold spell occuring from March 26 2020 to April 07 2020 at 55.0°N 240.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 13 days

Time span: March 26 2020 to April 07 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -10.5 °C
  • Mean temperature: -18.5 °C
  • Minimum temperature anomaly: -20.9 °C
  • Minimum temperature: -39.1 °C

Event center: 55.0°N 240.5°E

Area affected: 5463304 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_2020-Mar-26_to_2020-Apr-07_240.5_55.0

Cold spell occuring from March 25 2020 to March 30 2020 at 36.5°N 242.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 6 days

Time span: March 25 2020 to March 30 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 0.6 °C
  • Minimum temperature anomaly: -11.9 °C
  • Minimum temperature: -10.2 °C

Event center: 36.5°N 242.0°E

Area affected: 128967 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_2020-Mar-25_to_2020-Mar-30_242.0_36.5

Cold spell occuring from March 17 2020 to March 21 2020 at 32.0°N 245.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 5 days

Time span: March 17 2020 to March 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.6 °C
  • Mean temperature: 11.2 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 4.3 °C

Event center: 32.0°N 245.0°E

Area affected: 97358 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_2020-Mar-17_to_2020-Mar-21_245.0_32.0