Category: Extremes affecting United States

Cold spell occuring from March 12 2020 to March 22 2020 at 48.5°N 247.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 11 days

Time span: March 12 2020 to March 22 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.5 °C
  • Mean temperature: -7.0 °C
  • Minimum temperature anomaly: -22.0 °C
  • Minimum temperature: -27.3 °C

Event center: 48.5°N 247.5°E

Area affected: 2953313 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-12_to_2020-Mar-22_247.5_48.5

Heat wave occuring from March 11 2020 to May 05 2020 at 43.5°N 209.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Japan
  • Russian Federation
  • United States

Duration: 56 days

Time span: March 11 2020 to May 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 6.4 °C
  • Maximum temperature anomaly: 22.9 °C
  • Maximum temperature: 25.9 °C

Event center: 43.5°N 209.0°E

Area affected: 21899864 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-11_to_2020-May-05_209.0_43.5

Heat wave occuring from March 09 2020 to March 11 2020 at 42.5°N 288.5°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: March 09 2020 to March 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 7.9 °C
  • Mean temperature: 10.0 °C
  • Maximum temperature anomaly: 11.7 °C
  • Maximum temperature: 13.7 °C

Event center: 42.5°N 288.5°E

Area affected: 50386 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-09_to_2020-Mar-11_288.5_42.5

Heat wave occuring from March 06 2020 to March 08 2020 at 37.5°N 251.0°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: March 06 2020 to March 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.4 °C
  • Mean temperature: 8.7 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 13.1 °C

Event center: 37.5°N 251.0°E

Area affected: 54090 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-06_to_2020-Mar-08_251.0_37.5

Heat wave occuring from March 06 2020 to March 08 2020 at 49.5°N 193.5°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: March 06 2020 to March 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 1.9 °C
  • Mean temperature: 4.3 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 6.3 °C

Event center: 49.5°N 193.5°E

Area affected: 187207 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-06_to_2020-Mar-08_193.5_49.5

Cold spell occuring from March 03 2020 to March 05 2020 at 57.0°N 207.0°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: March 03 2020 to March 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.2 °C
  • Mean temperature: -6.9 °C
  • Minimum temperature anomaly: -14.4 °C
  • Minimum temperature: -26.1 °C

Event center: 57.0°N 207.0°E

Area affected: 185037 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-03_to_2020-Mar-05_207.0_57.0

Heat wave occuring from March 03 2020 to March 05 2020 at 28.0°N 274.5°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: March 03 2020 to March 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.5 °C
  • Mean temperature: 22.2 °C
  • Maximum temperature anomaly: 7.2 °C
  • Maximum temperature: 25.2 °C

Event center: 28.0°N 274.5°E

Area affected: 86583 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-03_to_2020-Mar-05_274.5_28.0

Cold spell occuring from March 02 2020 to March 05 2020 at 71.0°N 204.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 4 days

Time span: March 02 2020 to March 05 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.9 °C
  • Mean temperature: -29.6 °C
  • Minimum temperature anomaly: -12.2 °C
  • Minimum temperature: -36.6 °C

Event center: 71.0°N 204.5°E

Area affected: 55904 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-02_to_2020-Mar-05_204.5_71.0

Heat wave occuring from March 02 2020 to March 07 2020 at 38.5°N 238.0°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 02 2020 to March 07 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.9 °C
  • Mean temperature: 10.7 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 20.1 °C

Event center: 38.5°N 238.0°E

Area affected: 260260 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-02_to_2020-Mar-07_238.0_38.5

Heat wave occuring from March 01 2020 to March 04 2020 at 48.0°N 273.5°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: March 01 2020 to March 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 8.7 °C
  • Mean temperature: 0.1 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 1.4 °C

Event center: 48.0°N 273.5°E

Area affected: 62487 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-01_to_2020-Mar-04_273.5_48.0