On 13/07/2020 07:36, Freddie wrote:
0600z: 22001KT 60km Recent rain 5AC100 7AC150 (/CI250) 13.4/7.9 QFF 1024.1 falling.
SYNOP: 11986 72201 10134 20079 40241 57006 69902 72122 87072 333 20126 85360 87365=
Fine and sunny Sunday after a cold night. Clouding over during Sunday evening giving a much milder night than Saturday night - almost 10 degrees warmer. A few spot of slight rain 0530z-0545z. Excellent visibility. Surface wind is currently a southwesterly drift. Minimum temperature was 12.6 (0210z).


Update of that plot for 13 July looks like a new ,dies anno, record for
minimum global sea-ice, but Charctic says about 1/3 million sq km to go,
totting 2019 and 2020 for 13 July.
My suspicion is the historic data used in that plot , is as it was but
NSIDC continually revises/revisits old data

--
Global sea level rise to 2100 from curve-fitted existing altimetry data
http://diverse.4mg.com/slr.htm