Welcome to WWLLN
The World Wide Lightning Location Network is operated by the University of Washington in Seattle with lightning location sensors at VLF (3-30 kHz).
Most ground-based observations in the VLF band are dominated by impulsive signals from lightning discharges called “sferics”.
Significant radiated electromagnetic power exists from a few hertz to several hundred megahertz, with the bulk of the energy radiated at VLF.
With our network of sferic sensors we are producing regular maps of lightning activity over the entire Earth.
Our map showing the entire world uses coloured spots to indicate lightning strokes (red stars inside an open
circle are active WWLLN lightning sensor locations). Click on the map for explanation.
(Notes: cloud data thanks to National Weather Service/Aviation Weather Center; blue overlay dots are WWLLN Lightning;
Red circles are WWLLN receivers; Red line is the terminator)
The WWLLN Management Team, lead by Prof Robert Holzworth of the University of Washington produced
these data and images with the cooperation of the universities and institutes which host the stations as listed on the hosts page.
For access to the data see the data page and contact us.
More research with WWLLN on the research and publications page.
- Lightning climatology
- The Global Electric Circuit
- Whistler waves
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