7 Dec 2021 - 03:51 UTC
PTC Sam - Geostationary Lightning Mapper at 51.0°N - 39.4°W
Animation images have expired from the system. Images for this storm location are no longer being actively produced.
To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.
Apparent 'jumps' in the animation occur due to adjustments to reflect storm movement.
GOES Animations and Internet Explorer
While GOES animation code will not run on older Internet Explorer browsers, they work in the newest versions of Microsoft Edge. If you are using Internet Explorer, please try a different browser: Chrome, Firefox, Safari, or MS Edge are all supported.
About Geostationary Lightning Mapper
GLM Extent Density of Lightning is the number of lightning flashes that occur within a grid cell over a given period of time. FED was the first GLM product routinely available to weather service forecasters. The FED product is the best single metric to convey both the quantity and extent of lightning activity. It is useful for both storm trending applications and to depict geographic coverage.
In this visualization, GLM is superimposed on a GeoColor background image.
GLM data is produced between 54°N and 54°S.
• For more details, see the Geostationary Lightning Mapper Quick Guide, (PDF, 1.98 MB)