11 May 2025 - 23:36 EDT
12 May 2025 - 03:36 UTC
12 May 2025 - 03:36 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 40°N - 95°W - Andrew County, MO
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1558 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1559 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1600 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1601 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1602 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1603 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1604 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1605 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1606 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1607 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1608 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1609 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1610 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1611 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1612 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1613 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1614 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1615 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1616 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1617 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1618 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1619 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1620 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1621 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1622 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1623 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1624 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1625 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1626 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 Apr 2025 - 1627 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)