Melt extent over Greenland was well over 40% on June 12, 2019.
The surface melt map that day (on the right) shows many coastal areas for which data are missing, as indicated by the grey color.
As the June 13, 2019, NASA Worldview satellite image (underneath, right) shows, snow and ice in many coastal areas has melted away.
Four nullschool images are added below. The first one shows air temperatures over Greenland as high as 22.7°C or 72.9°F on June 13, 2019, at 1000 mb. Also note the high temperatures visible over East Siberia and the East Siberian Arctic Shelf (ESAS).
A second nullschool image shows that a temperature of 0.9°C or 33.5°F was recorded at the North Pole on June 15, 2019. Temperatures above the melting point of ice have been recorded at the North Pole for some time now.
The third nullschool image shows that temperatures as high as 30.5°C or 86.8°F are forecast for June 19, 2019, near Tiksi, which is on the coast of Siberia where the Lena River flows into the Laptev Sea and the Arctic Ocean.
What causes this? As the Arctic is heating up faster than the rest of the world, the path of the jet stream is changing. On June 19, 2019, the jet stream is forecast to move from Siberia to the Laptev Sea at speeds as high as 192 km/h or 119 mph.
The satellite image shows smoke from fires getting pushed by strong winds over the Laptev Sea on June 16, 2019. Smoke settling on ice makes it darker, further speeding up the melting.
|[ Temperatures over Greenland as high as 22.7°C or 72.9°F on June 13, 2019, at 1000 mb ]|
|[ Temperature of 0.9°C or 33.5°F at the North Pole on June 15, 2019 ]|
|[ temperatures as high as 30.5°C or 86.8°F are forecast for June 19, 2019, near Tiksi, Siberia ]|
|[ jet stream is forecast to move from Siberia to the Laptev Sea as fast as at 192 km/h or 119 mph June 19, 2019 ]|
|[ fires getting pushed by strong winds on June 16, 2019, over the Laptev Sea (at bottom of image) ]|
In conclusion, temperatures over the Arctic are high. Changes to the jet stream due to the rapid heating of the Arctic are causing hot air to move deep into the Arctic, including over the Laptev Sea all the way to the North Pole, while high temperatures in Siberia are warming up the water of rivers, causing warm water to flow into the Arctic Ocean.
The situation is dire and calls for comprehensive and effective action, as described in the Climate Plan.