Category: Extremes affecting United States

Heat wave occuring from September 28 2012 to October 01 2012 at 47.0°N 262.5°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: September 28 2012 to October 01 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.9 °C
  • Mean temperature: 17.9 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 19.8 °C

Event center: 47.0°N 262.5°E

Area affected: 65126 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_2012-Sep-28_to_2012-Oct-01_262.5_47.0

Heat wave occuring from August 28 2012 to September 01 2012 at 29.0°N 263.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 5 days

Time span: August 28 2012 to September 01 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 31.6 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 34.7 °C

Event center: 29.0°N 263.5°E

Area affected: 262592 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_2012-Aug-28_to_2012-Sep-01_263.5_29.0

Cold spell occuring from August 28 2012 to October 08 2012 at 63.0°N 189.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Russian Federation
  • United States

Duration: 42 days

Time span: August 28 2012 to October 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 7.7 °C
  • Minimum temperature anomaly: -13.2 °C
  • Minimum temperature: -19.5 °C

Event center: 63.0°N 189.0°E

Area affected: 10458482 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_2012-Aug-28_to_2012-Oct-08_189.0_63.0

Heat wave occuring from August 26 2012 to September 09 2012 at 33.5°N 265.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 15 days

Time span: August 26 2012 to September 09 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.6 °C
  • Mean temperature: 28.4 °C
  • Maximum temperature anomaly: 10.0 °C
  • Maximum temperature: 34.0 °C

Event center: 33.5°N 265.5°E

Area affected: 2564289 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_2012-Aug-26_to_2012-Sep-09_265.5_33.5

Heat wave occuring from August 22 2012 to August 27 2012 at 47.0°N 272.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 6 days

Time span: August 22 2012 to August 27 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 22.6 °C
  • Maximum temperature anomaly: 9.5 °C
  • Maximum temperature: 26.4 °C

Event center: 47.0°N 272.5°E

Area affected: 391442 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_2012-Aug-22_to_2012-Aug-27_272.5_47.0

Cold spell occuring from August 22 2012 to August 24 2012 at 36.0°N 245.0°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: August 22 2012 to August 24 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.9 °C
  • Mean temperature: 25.0 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 18.9 °C

Event center: 36.0°N 245.0°E

Area affected: 63227 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_2012-Aug-22_to_2012-Aug-24_245.0_36.0

Cold spell occuring from August 18 2012 to August 27 2012 at 30.5°N 278.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 10 days

Time span: August 18 2012 to August 27 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 24.7 °C
  • Minimum temperature anomaly: -4.4 °C
  • Minimum temperature: 20.4 °C

Event center: 30.5°N 278.5°E

Area affected: 623734 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_2012-Aug-18_to_2012-Aug-27_278.5_30.5

Heat wave occuring from August 17 2012 to August 21 2012 at 46.5°N 245.5°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: August 17 2012 to August 21 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 22.7 °C
  • Maximum temperature anomaly: 6.9 °C
  • Maximum temperature: 27.3 °C

Event center: 46.5°N 245.5°E

Area affected: 75141 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_2012-Aug-17_to_2012-Aug-21_245.5_46.5

Cold spell occuring from August 17 2012 to August 19 2012 at 42.0°N 263.5°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: August 17 2012 to August 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -5.3 °C
  • Mean temperature: 16.9 °C
  • Minimum temperature anomaly: -7.0 °C
  • Minimum temperature: 14.5 °C

Event center: 42.0°N 263.5°E

Area affected: 195690 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_2012-Aug-17_to_2012-Aug-19_263.5_42.0

Heat wave occuring from August 13 2012 to November 02 2012 at 72.0°N 223.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland
  • United States

Duration: 82 days

Time span: August 13 2012 to November 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.5 °C
  • Mean temperature: 3.9 °C
  • Maximum temperature anomaly: 13.3 °C
  • Maximum temperature: 28.9 °C

Event center: 72.0°N 223.5°E

Area affected: 13127157 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_2012-Aug-13_to_2012-Nov-02_223.5_72.0