13 Feb 2025 - 09:18 EST
13 Feb 2025 - 14:18 UTC
13 Feb 2025 - 14:18 UTC
GOES-East Mesoscale view - Geostationary Lightning Mapper at 35°N - 98°W - Grady County, OK
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0828 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0829 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0830 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0831 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0832 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0833 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0834 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0835 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0836 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0837 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0838 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0839 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0840 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0841 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0842 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0843 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0844 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0845 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0846 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0847 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0848 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0849 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0850 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0851 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0852 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0853 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0854 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0855 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0856 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 02 Aug 2024 - 0857 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)