6 Jul 2025 - 17:44 EDT
6 Jul 2025 - 21:44 UTC
6 Jul 2025 - 21:44 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 37°N - 86°W - Barren County, KY
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1500 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1501 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1502 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1503 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1504 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1505 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1506 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1507 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1508 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1509 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1510 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1511 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1512 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1513 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1514 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1515 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1516 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1517 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1518 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1519 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1520 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1521 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1522 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1523 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1524 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1525 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1526 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1527 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1528 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 05 Jul 2025 - 1529 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)