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17 Apr 2025 - 20:35 EDT
18 Apr 2025 - 00:35 UTC

GOES-West Mesoscale view - Geostationary Lightning Mapper at 39°N - 119°W - Lyon County, NV

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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1413 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1413 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1414 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1414 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1415 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1415 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1416 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1416 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1417 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1417 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1418 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1418 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1419 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1419 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1420 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1420 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1421 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1421 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1422 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1422 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1423 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1423 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1424 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1424 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1425 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1425 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1426 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1426 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1427 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1427 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1428 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1428 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1429 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1429 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1430 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1430 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1431 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1431 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1432 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1432 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1433 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1433 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1434 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1434 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1435 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1435 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1436 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1436 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1437 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1437 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1438 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1438 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1439 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1439 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1440 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1440 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1441 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1441 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1442 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1442 UTC
legend for Global Lightning Mapper Flash Extent Density - flashes per five minutes

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)