14 Jul 2025 - 00:13 EDT
14 Jul 2025 - 04:13 UTC
14 Jul 2025 - 04:13 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 34°N - 97°W - Love County, OK
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0935 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0936 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0937 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0938 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0939 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0940 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0941 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0942 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0943 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0944 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0945 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0946 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0947 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0948 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0949 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0950 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0951 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0952 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0953 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0954 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0955 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0956 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0957 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0958 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 0959 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 1000 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 1001 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 1002 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 1003 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 19 Jun 2025 - 1004 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)