40% of the GFS purtabations show a cold outcome in FI, but the scatter of scenarios is as manic as ever. However the jet scenarios seem to be as unpredictable beyond 120 hours, so it's no wonder. The SW event seem to expand the scatter as the models struggled to get to grips with it...but not faring better now frankly.
ECMWF is hinting at a block happening earlier than the GFS.
i am getting interested. 1978' late feb blizzards in the SW - But I had 2" in Sussex then & was most grateful. The beast proved it's never too late until Mid April at least!!
of course early March is the latest I've seen lasting snow in lowland uk in the south.
Originally Posted by: BJBlake