8 Jul 2025 - 05:03 EDT
8 Jul 2025 - 09:03 UTC
8 Jul 2025 - 09:03 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 37°N - 86°W - Barren County, KY
2.5 hour loop - 30 images - 5 minute update
To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0827 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0828 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0829 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0830 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0831 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0832 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0833 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0834 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0835 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0836 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0837 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0838 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0839 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0840 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0841 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0842 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0843 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0844 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0845 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0846 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0847 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0848 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0849 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0850 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0851 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0852 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0853 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0854 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0855 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Jul 2025 - 0856 UTC
GLM Flash Extent Density over Band 13 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 the FED13 visualization, GLM is superimposed on infrared Band 13 rendered in gray scale.
GLM data is produced between 54°N and 54°S.
• For more details, see the Geostationary Lightning Mapper Quick Guide, (PDF, 1.98 MB)