THUNDERSTORM T0034
Date: Monday 21st August 2000
Time: 14:00 BST
Location: Macclesfield, Cheshire UK
Path: Overhead

Synoptics: Returning Polar Maritime Open Cell
Duration: 35 Minutes
Type: Single/Multicell
Average lightning type: C-C
Average discharge rate: 258 seconds
Footage Quality: VHS
 

This storm occurred whilst I was at work, however I was expecting activity today so had the camera set up already, at home, waiting to be switched on by picking up the phone and getting mother to do it for me! Cunning? I was only 16 so it was all acceptable behaviour.

I came home to witness some fairly impressive footage caught by the unmanned camera; C-C displays from a very ominous dark looking base moving north eastwards. Well done mum!

A broad upper-level trough supplied the instability whilst daytime heating provided the fuel. A long line of cells across the spine of the country developed, including this one. These were mostly situated inland and near high ground including the Pennines. Surface winds were very slack, so it may have been enhanced by sea breeze convergence given the time of day.

Judging by the depth of the CB as shown in the above picture, the cloud base was rather high.

SATELLITE IMAGES (Credits)
VISIBLE 21.08.2000 15:27
VISIBLE 21.08.2000 15:27 + Grid
INFRARED 21.08.2000 15:27
INFRARED 21.08.2000 15:27 + Grid
COLOUR 21.08.2000 15:27
COLOUR 21.08.2000 15:27 + Grid

 

CHARTS (Credits)

SFERICS (Credits)