On Friday, 26 April 2013 19:25:24 UTC+1, Andy Page wrote:
A lot of whitish dust deposits on the car this morning after the light rain of last night - typical after washing it yesterday! Anyone else notice anything? No obvious dust plume upwind on MSG dust imagery in the last few days. -- Andy Romansleigh, North Devon http://www.romansleighweather.co.uk/

Having now had the opportunity to look back at more detailed imagery from
Tues/Weds/Thurs, there was lifted sand/dust over NW Africa, with the upper
flow over southern UK during Thursday and early Friday being sourced over
that area, so I am content that these are Saharan dust deposits and certainly not pollen.