Category: Weather Extremes – all events

Cold spell occuring from September 16 2011 to September 22 2011 at 20.0°N 293.0°E

Download data: JSON

Event type: Cold spell

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

  • Bahamas
  • Dominican Republic
  • Puerto Rico
  • Saint Eustatius
  • Turks and Caicos Islands

Duration: 7 days

Time span: September 16 2011 to September 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.2 °C
  • Mean temperature: 26.3 °C
  • Minimum temperature anomaly: -2.1 °C
  • Minimum temperature: 24.4 °C

Event center: 20.0°N 293.0°E

Area affected: 740914 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-Sep-16_to_2011-Sep-22_293.0_20.0

Cold spell occuring from September 16 2011 to September 23 2011 at -53.5°S 279.0°E

Download data: JSON

Event type: Cold spell

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

  • Argentina
  • Chile

Duration: 8 days

Time span: September 16 2011 to September 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 1.0 °C
  • Minimum temperature anomaly: -9.0 °C
  • Minimum temperature: -4.7 °C

Event center: -53.5°S 279.0°E

Area affected: 1243683 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-Sep-16_to_2011-Sep-23_279.0_-53.5

Heat wave occuring from September 15 2011 to October 16 2011 at -7.0°S 48.0°E

Download data: JSON

Event type: Heat wave

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

  • Ethiopia
  • Kenya
  • Somalia
  • Tanzania

Duration: 32 days

Time span: September 15 2011 to October 16 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 0.9 °C
  • Mean temperature: 26.5 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 33.3 °C

Event center: -7.0°S 48.0°E

Area affected: 2856056 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-Sep-15_to_2011-Oct-16_48.0_-7.0

Heat wave occuring from September 15 2011 to September 18 2011 at -31.5°S 136.5°E

Download data: JSON

Event type: Heat wave

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

  • Australia

Duration: 4 days

Time span: September 15 2011 to September 18 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: 22.5 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 26.5 °C

Event center: -31.5°S 136.5°E

Area affected: 137006 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-Sep-15_to_2011-Sep-18_136.5_-31.5

Heat wave occuring from September 15 2011 to September 20 2011 at -57.0°S 308.0°E

Download data: JSON

Event type: Heat wave

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

  • Falkland Islands
  • South Georgia and the South Sandwich Islands

Duration: 6 days

Time span: September 15 2011 to September 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: 2.9 °C
  • Mean temperature: 2.2 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 7.8 °C

Event center: -57.0°S 308.0°E

Area affected: 2087001 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-Sep-15_to_2011-Sep-20_308.0_-57.0

Cold spell occuring from September 15 2011 to September 17 2011 at 44.0°N 278.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: September 15 2011 to September 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 10.5 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 5.6 °C

Event center: 44.0°N 278.0°E

Area affected: 80080 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-Sep-15_to_2011-Sep-17_278.0_44.0

Cold spell occuring from September 15 2011 to September 19 2011 at 36.0°N 278.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 5 days

Time span: September 15 2011 to September 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: 14.9 °C
  • Minimum temperature anomaly: -9.2 °C
  • Minimum temperature: 6.2 °C

Event center: 36.0°N 278.5°E

Area affected: 659921 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-Sep-15_to_2011-Sep-19_278.5_36.0

Cold spell occuring from September 15 2011 to September 20 2011 at 29.0°N 74.0°E

Download data: JSON

Event type: Cold spell

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

  • India
  • Pakistan

Duration: 6 days

Time span: September 15 2011 to September 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 27.3 °C
  • Minimum temperature anomaly: -5.5 °C
  • Minimum temperature: 25.6 °C

Event center: 29.0°N 74.0°E

Area affected: 80657 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-Sep-15_to_2011-Sep-20_74.0_29.0

Cold spell occuring from September 15 2011 to September 17 2011 at 39.0°N 277.0°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 15 2011 to September 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: 13.6 °C
  • Minimum temperature anomaly: -9.1 °C
  • Minimum temperature: 10.2 °C

Event center: 39.0°N 277.0°E

Area affected: 91192 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-Sep-15_to_2011-Sep-17_277.0_39.0

Cold spell occuring from September 15 2011 to September 19 2011 at 1.0°N 131.0°E

Download data: JSON

Event type: Cold spell

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

  • Indonesia

Duration: 5 days

Time span: September 15 2011 to September 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.0 °C
  • Mean temperature: 25.8 °C
  • Minimum temperature anomaly: -1.4 °C
  • Minimum temperature: 23.8 °C

Event center: 1.0°N 131.0°E

Area affected: 71084 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-Sep-15_to_2011-Sep-19_131.0_1.0