RaVeNStOrM

THUNDERSTORM T0053
Date: Wednesday 18th August 2004   Time: 16:48 BST
Location:
Macclesfield, Cheshire UK
Path: Overhead

Synoptics:
Returning Polar Maritime
Duration: 30 minutes
Type: Multicell
Average lightning type: C-C
Average discharge rate: 54 seconds
Footage Quality:
VHS/Hi8, DIGI

 

This storm was just starting to move in after Iíd got in from work - well timed. It was moving in quite quickly and on first impressions was obvious to most that it was likely to be electrified, especially given the airmass being a heated returning polar maritime. There was a strong and organised updraught evident at the front, judging by a linear arcus cloud with a dense rain curtain right behind it (less likely to be dry outflow). The parent weather system was actually the signature of ex-hurricane Bonnie, and it still had some energy contained within it even as a mature extra-tropical low. This storm was one of two (T0054 came just a couple of hours after with even more power).

This storm was difficult to film as it didnít really do much visibly under the base. The C-Cs were plenty but of low to mid-amp nature, and were barely visible within the rain curtains and daylight. However the discharge rate was good at an average of only 54 seconds. This storm patrolled northwards along a band of fast-moving cells and was visible in the distance. However the show wasnít over when T0054 followed in behind proving to be a lot more spectacular, perhaps because it was riding an upper trough.


 

CHARTS (Credits)


NOAA 500hPa Reanalysis NOAA 500hPa Reanalysis NOAA 500hPa Reanalysis

SFERICS (Credits)
EUROPE 24-hour SFERIC LOCATION

EUROPE 24-hour SFERIC INTENSITY

SATELLITE IMAGES (
Credits)
VISIBLE 18.08.2004 15:44

VISIBLE 18.08.2004 15:44 + Grid
INFRARED 18.08.2004 15:44
INFRARED 18.08.2004 15:44 + Grid
COLOUR 18.08.2004 15:44
COLOUR 18.08.2004 15:44 + Grid

T0053 was embedded in the arc of convection seen across the Midlands, whilst T0054 is shown brewing in a new line of convection positioned western Wales.

 


 
© Mark Seltzer  www.electricsky.co.uk

 

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