A polar low is evident on IR and VIS pics now, pretty much centred over
Shetland.
Sumburgh reports -
METAR EGPB 281120Z 03008KT 0300 +SHSN VV/// M03/M04 Q0993=
METAR EGPB 281050Z 35010KT 2500 -SHSN BKN010CB M02/M04 Q0994=
METAR EGPB 281020Z 33021KT 9999 FEW014CB FEW018 SCT035 M01/M05 Q0994=
METAR EGPB 280950Z 35020G30KT 9999 VCSH FEW014CB SCT034 M01/M06 Q0995=
http://www.west-cheshire.ac.uk/weather/meteosat/d2b.jpg
Joe