10 Nov 2025 - 03:27 EST
10 Nov 2025 - 08:27 UTC
10 Nov 2025 - 08:27 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
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0751 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0752 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0753 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0754 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0755 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0756 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0757 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0758 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0759 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0800 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0801 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0802 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0803 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0804 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0805 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0806 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0807 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0808 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0809 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0810 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0811 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0812 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0813 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0814 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0815 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0816 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0817 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0818 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0819 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 10 Nov 2025 - 0820 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)