12
specimen, the
thickness of
the shells from
the outer shell
inwards were:-
2 mm clear ice
(4 mm at a
'wart') , 3 mm
white ice,
2 mm grey ice,
2 mm white ice,
4 mm clear ice
and 1 mm grey
ice to the
centre. The
other specimen was similar but the inner-
most 5 mm radius was clear ice.
There were hailstorms in many places in Essex
that afternoon with up to 25 mm diameter
hailstones but an attempt was made to define
the area of this particular fall of large
hailstones by motoring along lanes and
recording evidence of damage on a map.
Small twigs and bunches of leaves stripped
from the trees completely carpeted the road-
way where there were trees to the south or
west.
A random selection of twigs from those
peting one road revealed:-
oak - up to 500 mm long and
10 mm diameter at the
break point
willow - up to 600 mm long and
8 mm diameter at the
break point