"Eric Belton" wrote in message
...
Southcote (W. Reading).

Patches of 'cloud' observed to NW thru' to ENE since 1030. Resembles
high Sc and is dark grey or black in colour. Believed to have
originated
from oil storage depot explosions at Hemel Hempstead.
Did not hear anything here, even though I was up and about.

We didn't actually hear the explosion here in Bracknell (at least where
we are), but the house gave a violent sharp shudder just after 0600Z

.... elevated smoke now cutting down the general light levels here in
Bracknell: sun still shining strongly, but effect now almost
eclipse-like.

Martin.