THUNDERSTORM T0033
Date: Saturday 29th July 2000
Time:
11:00 BST
Location:
Macclesfield, Cheshire UK
Path: 1 or 2 miles east
Synoptics:
Polar Maritime
Duration: 40 Minutes
Type: Open Cell Single/Multicell
Average lightning type: C-G
Average discharge rate: 221 seconds
Footage Quality: VHS
I was out and about in town at the time when this started developing, but
not for long. I noticed strong convection sparked off early as the daytime
heating got going in the unstable polar maritime air. I thought given the
fact it was only 11 o’clock with slack air flow, there was good potential
for some electrical activity.
I got home and
trained the camera on the cell,
which was now skirting the west of Macclesfield. A pronounced rain curtain
and arcus cloud developed, showing maturity. Then it started
discharging less than a mile to the south west. I caught a decent C-G strike
and thunder by aiming the camera in between the updraught and the
downdraught, where I came to learn most lightning hotspots of cold-air
storms reside.
As
it proceeded into the distance south-eastwards it gave some strange-shaped
C-C lightning which was elongated across the sky.
The anvil was clearly visible as it left the area, being feathery in
nature on the rearward edge. I presume the forward edge was more spread-out
in the direction of the upper flow.
SATELLITE IMAGES (Credits)
VISIBLE 29.07.2000 14:54
INFRARED 29.07.2000 14:54
COLOUR 29.07.2000 14:54
CHARTS
(Credits)
SFERICS (Credits)
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