14 May 2025 - 14:50 EDT
14 May 2025 - 18:50 UTC
14 May 2025 - 18:50 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 34°N - 107°W - Socorro County, NM
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0422 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0423 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0424 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0425 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0426 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0427 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0428 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0429 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0430 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0431 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0432 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0433 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0434 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0435 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0436 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0437 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0438 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0439 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0440 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0441 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0447 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0448 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0449 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0450 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0451 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0452 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0453 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0454 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0455 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 28 Apr 2025 - 0456 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)