RaVeNStOrM

THUNDERSTORM T0048
Date: Tuesday 6th July 2004   Time: 21:54 BST
Location:
Macclesfield, Cheshire UK
Path: Overhead

Synoptics:
Mid-level forced convection (in cold but well-mixed preconditioned air-mass)
Duration: 70 minutes
Type: Multicell
Average lightning type: C-C
Average discharge rate: 263 seconds
Footage Quality:
VHS, Digicam

 

T0048 was a very slow developing, slow-moving storm, quite weakly electrified and had a low precipitation echo looking at the radar. Although weekly electrified, it had a steady discharge rate give or take a few lulls in activity. The line of activity was associated with an upper-trough feature releasing medium and upper-level instability.

The storm approached in twilight and was visibly flickering away in the distance, but became irregular in activity as it dissipated and new cells developed behind it. I saw virga in the twilight before the storm hit. The best part of this storm was when it eventually made it to Macclesfield and produced a large C-C discharge (although low-amp) overhead.



After that the storm cell dissipated completely, however a couple of hours later the same system generated T0049 directly overhead which was a completely different story.


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)
INFRARED 06.07.2004 22:13

INFRARED 06.07.2004 22:13 + GRID
INFRARED 07.07.2004 04:48
INFRARED 07.07.2004 04:48 + GRID

 


 
Mark Seltzer  www.electricsky.co.uk

 

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