Category: Extremes affecting United States

Heat wave occuring from February 15 2011 to February 22 2011 at 29.0°N 257.5°E

Download data: JSON

Event type: Heat wave

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

  • Mexico
  • United States

Duration: 8 days

Time span: February 15 2011 to February 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 19.8 °C
  • Maximum temperature anomaly: 8.0 °C
  • Maximum temperature: 23.8 °C

Event center: 29.0°N 257.5°E

Area affected: 67325 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_2011-Feb-15_to_2011-Feb-22_257.5_29.0

Heat wave occuring from February 12 2011 to February 17 2011 at 43.5°N 259.5°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 12 2011 to February 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 9.5 °C
  • Mean temperature: 7.9 °C
  • Maximum temperature anomaly: 14.3 °C
  • Maximum temperature: 14.9 °C

Event center: 43.5°N 259.5°E

Area affected: 293577 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_2011-Feb-12_to_2011-Feb-17_259.5_43.5

Heat wave occuring from February 10 2011 to February 18 2011 at 46.5°N 269.0°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: February 10 2011 to February 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 11.7 °C
  • Mean temperature: 0.5 °C
  • Maximum temperature anomaly: 17.3 °C
  • Maximum temperature: 9.4 °C

Event center: 46.5°N 269.0°E

Area affected: 1335184 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_2011-Feb-10_to_2011-Feb-18_269.0_46.5

Heat wave occuring from February 08 2011 to February 24 2011 at 17.5°N 194.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 17 days

Time span: February 08 2011 to February 24 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 24.1 °C
  • Maximum temperature anomaly: 2.9 °C
  • Maximum temperature: 25.6 °C

Event center: 17.5°N 194.5°E

Area affected: 1078816 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_2011-Feb-08_to_2011-Feb-24_194.5_17.5

Heat wave occuring from January 31 2011 to February 05 2011 at 61.5°N 241.5°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: January 31 2011 to February 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 13.5 °C
  • Mean temperature: -8.3 °C
  • Maximum temperature anomaly: 24.0 °C
  • Maximum temperature: 7.2 °C

Event center: 61.5°N 241.5°E

Area affected: 1352118 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_2011-Jan-31_to_2011-Feb-05_241.5_61.5

Heat wave occuring from January 29 2011 to February 01 2011 at 70.5°N 192.0°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: January 29 2011 to February 01 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 14.4 °C
  • Mean temperature: -7.7 °C
  • Maximum temperature anomaly: 21.3 °C
  • Maximum temperature: -4.4 °C

Event center: 70.5°N 192.0°E

Area affected: 122752 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_2011-Jan-29_to_2011-Feb-01_192.0_70.5

Heat wave occuring from January 28 2011 to January 31 2011 at 66.0°N 190.0°E

Download data: JSON

Event type: Heat wave

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

  • Russian Federation
  • United States

Duration: 4 days

Time span: January 28 2011 to January 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 14.7 °C
  • Mean temperature: -2.1 °C
  • Maximum temperature anomaly: 20.1 °C
  • Maximum temperature: 2.4 °C

Event center: 66.0°N 190.0°E

Area affected: 154523 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_2011-Jan-28_to_2011-Jan-31_190.0_66.0

Cold spell occuring from January 26 2011 to January 31 2011 at 23.5°N 278.0°E

Download data: JSON

Event type: Cold spell

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

  • Cuba
  • Mexico
  • United States

Duration: 6 days

Time span: January 26 2011 to January 31 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 19.8 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 13.9 °C

Event center: 23.5°N 278.0°E

Area affected: 974919 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_2011-Jan-26_to_2011-Jan-31_278.0_23.5

Cold spell occuring from January 23 2011 to February 04 2011 at 56.0°N 159.0°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 13 days

Time span: January 23 2011 to February 04 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: -5.3 °C
  • Minimum temperature anomaly: -17.6 °C
  • Minimum temperature: -34.3 °C

Event center: 56.0°N 159.0°E

Area affected: 1913958 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_2011-Jan-23_to_2011-Feb-04_159.0_56.0

Cold spell occuring from January 19 2011 to January 26 2011 at 70.0°N 203.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 8 days

Time span: January 19 2011 to January 26 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -13.1 °C
  • Mean temperature: -39.5 °C
  • Minimum temperature anomaly: -21.7 °C
  • Minimum temperature: -47.2 °C

Event center: 70.0°N 203.5°E

Area affected: 253980 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_2011-Jan-19_to_2011-Jan-26_203.5_70.0