Category: Extremes affecting United States

Heat wave occuring from March 19 2012 to May 02 2012 at 67.5°N 324.5°E

Download data: JSON

Event type: Heat wave

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

  • Azores
  • Canada
  • Denmark
  • Faroe Islands
  • Greenland
  • Iceland
  • Ireland
  • Norway
  • Sweden
  • United Kingdom
  • United States

Duration: 45 days

Time span: March 19 2012 to May 02 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 2.6 °C
  • Maximum temperature anomaly: 21.3 °C
  • Maximum temperature: 24.5 °C

Event center: 67.5°N 324.5°E

Area affected: 13224349 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-Mar-19_to_2012-May-02_324.5_67.5

Cold spell occuring from March 16 2012 to October 12 2012 at 18.5°N 206.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • China
  • Greenland
  • Japan
  • Mexico
  • North Korea
  • Philippines
  • Russian Federation
  • United Kingdom
  • United States

Duration: 211 days

Time span: March 16 2012 to October 12 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 13.8 °C
  • Minimum temperature anomaly: -15.9 °C
  • Minimum temperature: -37.1 °C

Event center: 18.5°N 206.0°E

Area affected: 57513308 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-16_to_2012-Oct-12_206.0_18.5

Cold spell occuring from March 14 2012 to March 23 2012 at 69.0°N 199.5°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: March 14 2012 to March 23 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -11.6 °C
  • Mean temperature: -34.6 °C
  • Minimum temperature anomaly: -15.8 °C
  • Minimum temperature: -38.9 °C

Event center: 69.0°N 199.5°E

Area affected: 174002 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-14_to_2012-Mar-23_199.5_69.0

Heat wave occuring from March 09 2012 to April 08 2012 at 45.0°N 265.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Mexico
  • United States

Duration: 31 days

Time span: March 09 2012 to April 08 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 10.0 °C
  • Mean temperature: 13.6 °C
  • Maximum temperature anomaly: 27.0 °C
  • Maximum temperature: 30.5 °C

Event center: 45.0°N 265.5°E

Area affected: 11896123 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-Mar-09_to_2012-Apr-08_265.5_45.0

Cold spell occuring from March 08 2012 to March 11 2012 at 33.5°N 252.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 4 days

Time span: March 08 2012 to March 11 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -7.1 °C
  • Mean temperature: 3.8 °C
  • Minimum temperature anomaly: -9.7 °C
  • Minimum temperature: -3.9 °C

Event center: 33.5°N 252.5°E

Area affected: 143552 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-08_to_2012-Mar-11_252.5_33.5

Cold spell occuring from March 06 2012 to March 26 2012 at 57.0°N 199.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • Russian Federation
  • United States

Duration: 21 days

Time span: March 06 2012 to March 26 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -5.3 °C
  • Mean temperature: -3.4 °C
  • Minimum temperature anomaly: -17.7 °C
  • Minimum temperature: -36.0 °C

Event center: 57.0°N 199.5°E

Area affected: 11662579 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-06_to_2012-Mar-26_199.5_57.0

Heat wave occuring from February 27 2012 to March 03 2012 at 28.5°N 279.5°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: February 27 2012 to March 03 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 4.0 °C
  • Mean temperature: 23.9 °C
  • Maximum temperature anomaly: 6.2 °C
  • Maximum temperature: 25.7 °C

Event center: 28.5°N 279.5°E

Area affected: 66239 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-Feb-27_to_2012-Mar-03_279.5_28.5

Heat wave occuring from February 27 2012 to March 04 2012 at 36.5°N 285.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 7 days

Time span: February 27 2012 to March 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: 6.5 °C
  • Mean temperature: 21.0 °C
  • Maximum temperature anomaly: 13.0 °C
  • Maximum temperature: 26.1 °C

Event center: 36.5°N 285.0°E

Area affected: 1481781 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-Feb-27_to_2012-Mar-04_285.0_36.5

Cold spell occuring from February 24 2012 to March 10 2012 at 69.0°N 198.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 16 days

Time span: February 24 2012 to March 10 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -12.8 °C
  • Mean temperature: -35.9 °C
  • Minimum temperature anomaly: -18.5 °C
  • Minimum temperature: -42.0 °C

Event center: 69.0°N 198.0°E

Area affected: 278708 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-Feb-24_to_2012-Mar-10_198.0_69.0

Cold spell occuring from February 24 2012 to March 04 2012 at 59.0°N 183.5°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: February 24 2012 to March 04 2012

Statistics over entire affected area:

  • Mean temperature anomaly: -10.7 °C
  • Mean temperature: -15.7 °C
  • Minimum temperature anomaly: -22.1 °C
  • Minimum temperature: -31.6 °C

Event center: 59.0°N 183.5°E

Area affected: 651801 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-Feb-24_to_2012-Mar-04_183.5_59.0