On Apr 18, 12:43*pm, "Martin Rowley"
wrote:
"Phil Layton" wrote in message

...

....is that what I think it is.....

EGKB 181120Z 29003KT 9999 VA NSC 15/02 Q1015
EGKB 181050Z 29002KT 9999 VA NSC 14/02 Q1015
EGKB 181020Z 29003KT 9999 VA NSC 14/02 Q1015
EGKB 180950Z 36001KT CAVOK 13/03 Q1015
EGKB 180920Z 17001KT CAVOK 12/03 Q1015
EGKB 180850Z 32002KT CAVOK 12/04 Q1015

Phil

... indeed - 'volcanic ash'. They might send some reports to Exeter
which in turn might get on the web page I referenced elsewhere.

Martin.

--
Martin Rowley
West Moors, East Dorset (UK): 17m (56ft) amsl
Lat: 50.82N * Long: 01.88W
NGR: SU 082 023

I'm 5 miles west of Biggin Hill and the sky was quite milky/hazy
this morning, less so now, but no more than I have seen a number of
times in the past. But how do they know it's volcanic ash? Its
appearance is no different from normal dust, rather a lot of it. And
what is the property of volcanic ash, as opposed to dust particles,
that makes it dangerous to aircraft? My guess is that its melting
point is lower, but not by very much. All these things are modified
silicates, after all.

Tudor Hughes, Warlingham, NE Surrey, 556 ft.