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 September 27 2012 to October 08 2012 at 27.5°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: 12 days

Time span: September 27 2012 to October 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 25.1 °C
  • Maximum temperature anomaly: 10.1 °C
  • Maximum temperature: 33.8 °C

Event center: 27.5°N 245.0°E

Area affected: 1508375 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-27_to_2012-Oct-08_245.0_27.5

Heat wave occuring from September 24 2012 to September 27 2012 at 32.5°N 264.5°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: September 24 2012 to September 27 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 27.4 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 28.9 °C

Event center: 32.5°N 264.5°E

Area affected: 51485 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-24_to_2012-Sep-27_264.5_32.5

Cold spell occuring from September 23 2012 to September 25 2012 at 37.5°N 278.0°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: September 23 2012 to September 25 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 11.6 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 6.6 °C

Event center: 37.5°N 278.0°E

Area affected: 111863 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-Sep-23_to_2012-Sep-25_278.0_37.5

Cold spell occuring from September 21 2012 to September 24 2012 at 42.5°N 270.0°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: September 21 2012 to September 24 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: 10.3 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 7.9 °C

Event center: 42.5°N 270.0°E

Area affected: 127392 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-Sep-21_to_2012-Sep-24_270.0_42.5

Heat wave occuring from September 19 2012 to September 24 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: 6 days

Time span: September 19 2012 to September 24 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.6 °C
  • Mean temperature: 32.8 °C
  • Maximum temperature anomaly: 4.5 °C
  • Maximum temperature: 35.0 °C

Event center: 33.0°N 245.0°E

Area affected: 54334 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-19_to_2012-Sep-24_245.0_33.0

Heat wave occuring from September 17 2012 to September 22 2012 at 44.0°N 238.5°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: September 17 2012 to September 22 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.0 °C
  • Mean temperature: 20.4 °C
  • Maximum temperature anomaly: 8.2 °C
  • Maximum temperature: 24.7 °C

Event center: 44.0°N 238.5°E

Area affected: 148290 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-17_to_2012-Sep-22_238.5_44.0

Heat wave occuring from September 13 2012 to September 17 2012 at 36.0°N 240.5°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: September 13 2012 to September 17 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 3.9 °C
  • Mean temperature: 25.8 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 30.0 °C

Event center: 36.0°N 240.5°E

Area affected: 52366 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-13_to_2012-Sep-17_240.5_36.0

Cold spell occuring from September 10 2012 to September 13 2012 at 35.5°N 282.5°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: September 10 2012 to September 13 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 21.0 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 18.0 °C

Event center: 35.5°N 282.5°E

Area affected: 136363 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-Sep-10_to_2012-Sep-13_282.5_35.5

Cold spell occuring from September 09 2012 to September 21 2012 at 28.5°N 270.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 13 days

Time span: September 09 2012 to September 21 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -4.4 °C
  • Mean temperature: 20.5 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 8.5 °C

Event center: 28.5°N 270.5°E

Area affected: 1719646 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-Sep-09_to_2012-Sep-21_270.5_28.5