Category: Extremes affecting United States

Heat wave occuring from April 12 2012 to April 20 2012 at 63.0°N 217.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 9 days

Time span: April 12 2012 to April 20 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 5.1 °C
  • Mean temperature: 2.8 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 8.4 °C

Event center: 63.0°N 217.0°E

Area affected: 81561 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-Apr-12_to_2012-Apr-20_217.0_63.0

Cold spell occuring from April 12 2012 to April 23 2012 at 52.0°N 190.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 12 days

Time span: April 12 2012 to April 23 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: 2.5 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: -8.6 °C

Event center: 52.0°N 190.5°E

Area affected: 3274446 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-Apr-12_to_2012-Apr-23_190.5_52.0

Cold spell occuring from April 12 2012 to April 15 2012 at 36.0°N 241.5°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: April 12 2012 to April 15 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 4.6 °C
  • Minimum temperature anomaly: -10.7 °C
  • Minimum temperature: -7.1 °C

Event center: 36.0°N 241.5°E

Area affected: 54491 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-Apr-12_to_2012-Apr-15_241.5_36.0

Cold spell occuring from April 12 2012 to May 02 2012 at 13.5°N 276.0°E

Download data: JSON

Event type: Cold spell

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

  • Bahamas
  • Belize
  • Costa Rica
  • Cuba
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua
  • United States

Duration: 21 days

Time span: April 12 2012 to May 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 24.3 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: 10.0 °C

Event center: 13.5°N 276.0°E

Area affected: 2943737 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-Apr-12_to_2012-May-02_276.0_13.5

Heat wave occuring from April 10 2012 to April 16 2012 at 29.5°N 266.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 7 days

Time span: April 10 2012 to April 16 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 2.7 °C
  • Mean temperature: 24.8 °C
  • Maximum temperature anomaly: 6.1 °C
  • Maximum temperature: 28.0 °C

Event center: 29.5°N 266.5°E

Area affected: 199165 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-Apr-10_to_2012-Apr-16_266.5_29.5

Heat wave occuring from April 09 2012 to April 17 2012 at 58.0°N 225.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 9 days

Time span: April 09 2012 to April 17 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 2.5 °C
  • Maximum temperature anomaly: 7.3 °C
  • Maximum temperature: 9.5 °C

Event center: 58.0°N 225.5°E

Area affected: 254573 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-Apr-09_to_2012-Apr-17_225.5_58.0

Heat wave occuring from April 09 2012 to April 11 2012 at 43.0°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: 3 days

Time span: April 09 2012 to April 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 7.4 °C
  • Mean temperature: 14.5 °C
  • Maximum temperature anomaly: 9.8 °C
  • Maximum temperature: 19.2 °C

Event center: 43.0°N 245.5°E

Area affected: 61706 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-Apr-09_to_2012-Apr-11_245.5_43.0

Cold spell occuring from April 09 2012 to April 12 2012 at 19.5°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: 4 days

Time span: April 09 2012 to April 12 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -1.3 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -2.0 °C
  • Minimum temperature: 19.5 °C

Event center: 19.5°N 207.0°E

Area affected: 69866 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-Apr-09_to_2012-Apr-12_207.0_19.5

Heat wave occuring from April 08 2012 to April 11 2012 at 35.0°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: 4 days

Time span: April 08 2012 to April 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 13.4 °C
  • Maximum temperature anomaly: 9.4 °C
  • Maximum temperature: 20.5 °C

Event center: 35.0°N 251.0°E

Area affected: 145794 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-Apr-08_to_2012-Apr-11_251.0_35.0

Cold spell occuring from March 31 2012 to April 11 2012 at 60.0°N 168.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 12 days

Time span: March 31 2012 to April 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -17.1 °C
  • Minimum temperature anomaly: -12.9 °C
  • Minimum temperature: -30.4 °C

Event center: 60.0°N 168.5°E

Area affected: 735125 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-Mar-31_to_2012-Apr-11_168.5_60.0