Category: Extremes affecting Norway

Cold spell occuring from September 01 2021 to September 04 2021 at 68.5°N 18.5°E

Download data: JSON

Event type: Cold spell

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

  • Norway
  • Sweden

Duration: 4 days

Time span: September 01 2021 to September 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 3.6 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: -0.0 °C

Event center: 68.5°N 18.5°E

Area affected: 54746 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_2021-Sep-01_to_2021-Sep-04_18.5_68.5

Heat wave occuring from August 29 2021 to September 02 2021 at 59.0°N 8.0°E

Download data: JSON

Event type: Heat wave

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

  • Norway

Duration: 5 days

Time span: August 29 2021 to September 02 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.7 °C
  • Mean temperature: 14.3 °C
  • Maximum temperature anomaly: 5.5 °C
  • Maximum temperature: 18.3 °C

Event center: 59.0°N 8.0°E

Area affected: 68603 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_2021-Aug-29_to_2021-Sep-02_8.0_59.0

Cold spell occuring from August 18 2021 to August 27 2021 at 63.0°N 10.5°E

Download data: JSON

Event type: Cold spell

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

  • Estonia
  • Finland
  • Latvia
  • Lithuania
  • Norway
  • Poland
  • Russian Federation
  • Sweden

Duration: 10 days

Time span: August 18 2021 to August 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: 8.7 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: 2.6 °C

Event center: 63.0°N 10.5°E

Area affected: 797482 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_2021-Aug-18_to_2021-Aug-27_10.5_63.0

Heat wave occuring from July 25 2021 to July 29 2021 at 65.0°N 15.0°E

Download data: JSON

Event type: Heat wave

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

  • Norway
  • Sweden

Duration: 5 days

Time span: July 25 2021 to July 29 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.9 °C
  • Mean temperature: 19.5 °C
  • Maximum temperature anomaly: 7.6 °C
  • Maximum temperature: 23.3 °C

Event center: 65.0°N 15.0°E

Area affected: 173464 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_2021-Jul-25_to_2021-Jul-29_15.0_65.0

Cold spell occuring from July 18 2021 to August 04 2021 at 68.0°N 18.0°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden

Duration: 18 days

Time span: July 18 2021 to August 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 8.0 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: 1.2 °C

Event center: 68.0°N 18.0°E

Area affected: 1139356 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_2021-Jul-18_to_2021-Aug-04_18.0_68.0

Heat wave occuring from June 23 2021 to October 12 2021 at 72.0°N 339.0°E

Download data: JSON

Event type: Heat wave

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

  • Albania
  • Algeria
  • Andorra
  • Bahamas
  • Belgium
  • Burkina Faso
  • Canada
  • Czechia
  • Denmark
  • Egypt
  • Finland
  • France
  • Germany
  • Greece
  • Greenland
  • Iceland
  • Ireland
  • Italy
  • Libya
  • Mali
  • Mauritania
  • Morocco
  • Netherlands
  • Niger
  • Norway
  • Poland
  • Portugal
  • Russian Federation
  • Spain
  • Svalbard and Jan Mayen
  • Sweden
  • Tunisia
  • Türkiye
  • United Kingdom
  • United States

Duration: 112 days

Time span: June 23 2021 to October 12 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 3.8 °C
  • Mean temperature: 12.4 °C
  • Maximum temperature anomaly: 10.1 °C
  • Maximum temperature: 41.9 °C

Event center: 30.0°N 0.0°E

Area affected: 35897257 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_2021-Jun-23_to_2021-Oct-12_339.0_72.0

Heat wave occuring from June 04 2021 to September 27 2021 at 76.0°N 151.5°E

Download data: JSON

Event type: Heat wave

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

  • Azerbaijan
  • China
  • Finland
  • Japan
  • Kazakhstan
  • Korea, Democratic People’s Republic of
  • Korea, Republic of
  • Northern Mariana Islands
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Turkmenistan
  • Ukraine
  • United States
  • Uzbekistan

Duration: 116 days

Time span: June 04 2021 to September 27 2021

Statistics over entire affected area:

  • Mean temperature anomaly: 4.2 °C
  • Mean temperature: 19.1 °C
  • Maximum temperature anomaly: 19.5 °C
  • Maximum temperature: 34.2 °C

Event center: 76.0°N 151.5°E

Area affected: 39762494 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_2021-Jun-04_to_2021-Sep-27_151.5_76.0

Cold spell occuring from May 21 2021 to May 25 2021 at 68.5°N 24.0°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Russian Federation
  • Sweden

Duration: 5 days

Time span: May 21 2021 to May 25 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 2.1 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: -1.4 °C

Event center: 68.5°N 24.0°E

Area affected: 114367 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_2021-May-21_to_2021-May-25_24.0_68.5

Cold spell occuring from April 28 2021 to May 02 2021 at 68.0°N 34.0°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Russian Federation

Duration: 5 days

Time span: April 28 2021 to May 02 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: -3.5 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: -6.0 °C

Event center: 68.0°N 34.0°E

Area affected: 55859 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_2021-Apr-28_to_2021-May-02_34.0_68.0

Cold spell occuring from April 27 2021 to May 08 2021 at 69.0°N 19.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Sweden

Duration: 12 days

Time span: April 27 2021 to May 08 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: -1.9 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: -8.8 °C

Event center: 69.0°N 19.5°E

Area affected: 317481 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_2021-Apr-27_to_2021-May-08_19.5_69.0