Category: Extremes affecting United States

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

Heat wave occuring from August 11 2012 to August 15 2012 at 63.0°N 198.0°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 11 2012 to August 15 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 16.3 °C
  • Maximum temperature anomaly: 5.8 °C
  • Maximum temperature: 18.5 °C

Event center: 63.0°N 198.0°E

Area affected: 97384 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-11_to_2012-Aug-15_198.0_63.0

Heat wave occuring from August 05 2012 to August 19 2012 at 33.0°N 245.0°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 05 2012 to August 19 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 28.7 °C
  • Maximum temperature anomaly: 6.8 °C
  • Maximum temperature: 39.9 °C

Event center: 33.0°N 245.0°E

Area affected: 1696548 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-05_to_2012-Aug-19_245.0_33.0

Heat wave occuring from August 04 2012 to August 08 2012 at 46.0°N 236.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: August 04 2012 to August 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 19.4 °C
  • Maximum temperature anomaly: 7.8 °C
  • Maximum temperature: 26.2 °C

Event center: 46.0°N 236.5°E

Area affected: 180765 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-04_to_2012-Aug-08_236.5_46.0

Heat wave occuring from August 02 2012 to August 04 2012 at 43.5°N 272.5°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: August 02 2012 to August 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.4 °C
  • Mean temperature: 27.1 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 28.9 °C

Event center: 43.5°N 272.5°E

Area affected: 89013 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-02_to_2012-Aug-04_272.5_43.5

Heat wave occuring from August 02 2012 to August 06 2012 at 43.5°N 282.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: August 02 2012 to August 06 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 25.0 °C
  • Maximum temperature anomaly: 6.7 °C
  • Maximum temperature: 28.6 °C

Event center: 43.5°N 282.0°E

Area affected: 283771 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-02_to_2012-Aug-06_282.0_43.5

Heat wave occuring from July 30 2012 to August 03 2012 at 48.5°N 291.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 5 days

Time span: July 30 2012 to August 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 25.0 °C

Event center: 48.5°N 291.0°E

Area affected: 193299 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-Jul-30_to_2012-Aug-03_291.0_48.5

Heat wave occuring from July 30 2012 to August 04 2012 at 40.5°N 266.0°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: July 30 2012 to August 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.7 °C
  • Mean temperature: 27.9 °C
  • Maximum temperature anomaly: 6.0 °C
  • Maximum temperature: 30.4 °C

Event center: 40.5°N 266.0°E

Area affected: 80074 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-Jul-30_to_2012-Aug-04_266.0_40.5