There are large differences with regards to the track and intensity of the
lows again, so as ever more runs are needed.

Darren,

Thanks once again for a superb round up. It will be very interesting to see
how the new GFS forecasts handle this Autumn with regards to depressions.
Earlier this year the model increased resolution to 0.5 degrees and added
new QuickScat data to the mix plus increases in AMDAR (Aircraft
Meteorological Data Relay) in the hope of increasing the accuracy of the
forecasts for cyclogenesis and tracking. Unsure as to what improvements have
been made to the UKMO models, perhaps Will may know? But I am very excited
(well, not that excited) about the GFS forecasting prospects this coming
Winter.

Regards

A