Category: Weather Extremes – all events

Cold spell occuring from September 17 2018 to September 25 2018 at 79.5°N 283.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 9 days

Time span: September 17 2018 to September 25 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: -19.3 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: -25.5 °C

Event center: 79.5°N 283.0°E

Area affected: 55211 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_2018-Sep-17_to_2018-Sep-25_283.0_79.5

Cold spell occuring from September 17 2018 to September 19 2018 at 58.5°N 295.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: September 17 2018 to September 19 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: -0.6 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: -5.9 °C

Event center: 58.5°N 295.5°E

Area affected: 89274 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_2018-Sep-17_to_2018-Sep-19_295.5_58.5

Cold spell occuring from September 17 2018 to September 21 2018 at 28.0°N 14.0°E

Download data: JSON

Event type: Cold spell

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

  • Libya

Duration: 5 days

Time span: September 17 2018 to September 21 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -3.7 °C
  • Mean temperature: 25.2 °C
  • Minimum temperature anomaly: -5.2 °C
  • Minimum temperature: 22.4 °C

Event center: 28.0°N 14.0°E

Area affected: 161248 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_2018-Sep-17_to_2018-Sep-21_14.0_28.0

Cold spell occuring from September 17 2018 to September 20 2018 at -65.5°S 295.0°E

Download data: JSON

Event type: Cold spell

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

  • Antarctica

Duration: 4 days

Time span: September 17 2018 to September 20 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -16.2 °C
  • Minimum temperature anomaly: -11.0 °C
  • Minimum temperature: -20.7 °C

Event center: -65.5°S 295.0°E

Area affected: 61602 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_2018-Sep-17_to_2018-Sep-20_295.0_-65.5

Heat wave occuring from September 16 2018 to September 25 2018 at 34.5°N 34.0°E

Download data: JSON

Event type: Heat wave

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

  • Cyprus
  • Turkiye

Duration: 10 days

Time span: September 16 2018 to September 25 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 2.4 °C
  • Mean temperature: 26.3 °C
  • Maximum temperature anomaly: 5.3 °C
  • Maximum temperature: 29.5 °C

Event center: 34.5°N 34.0°E

Area affected: 217479 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_2018-Sep-16_to_2018-Sep-25_34.0_34.5

Heat wave occuring from September 16 2018 to September 19 2018 at 17.5°N 268.0°E

Download data: JSON

Event type: Heat wave

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

  • Guatemala
  • Mexico

Duration: 4 days

Time span: September 16 2018 to September 19 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 29.1 °C
  • Maximum temperature anomaly: 3.0 °C
  • Maximum temperature: 30.4 °C

Event center: 17.5°N 268.0°E

Area affected: 84946 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_2018-Sep-16_to_2018-Sep-19_268.0_17.5

Heat wave occuring from September 16 2018 to October 01 2018 at 14.0°N 270.0°E

Download data: JSON

Event type: Heat wave

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

  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua

Duration: 16 days

Time span: September 16 2018 to October 01 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 1.6 °C
  • Mean temperature: 26.4 °C
  • Maximum temperature anomaly: 2.6 °C
  • Maximum temperature: 29.7 °C

Event center: 14.0°N 270.0°E

Area affected: 93123 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_2018-Sep-16_to_2018-Oct-01_270.0_14.0

Heat wave occuring from September 16 2018 to September 26 2018 at 14.5°N 268.0°E

Download data: JSON

Event type: Heat wave

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

  • Guatemala

Duration: 11 days

Time span: September 16 2018 to September 26 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 28.2 °C
  • Maximum temperature anomaly: 2.2 °C
  • Maximum temperature: 29.5 °C

Event center: 14.5°N 268.0°E

Area affected: 114307 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_2018-Sep-16_to_2018-Sep-26_268.0_14.5

Heat wave occuring from September 16 2018 to October 04 2018 at 4.0°N 9.0°E

Download data: JSON

Event type: Heat wave

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

  • Cameroon
  • Equatorial Guinea

Duration: 19 days

Time span: September 16 2018 to October 04 2018

Statistics over entire affected area:

  • Mean temperature anomaly: 1.0 °C
  • Mean temperature: 25.3 °C
  • Maximum temperature anomaly: 2.0 °C
  • Maximum temperature: 27.0 °C

Event center: 4.0°N 9.0°E

Area affected: 101816 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_2018-Sep-16_to_2018-Oct-04_9.0_4.0

Cold spell occuring from September 16 2018 to September 18 2018 at 57.5°N 285.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: September 16 2018 to September 18 2018

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 1.5 °C
  • Minimum temperature anomaly: -5.4 °C
  • Minimum temperature: -0.4 °C

Event center: 57.5°N 285.0°E

Area affected: 186054 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_2018-Sep-16_to_2018-Sep-18_285.0_57.5