22 May 2025 - 10:12 EDT
22 May 2025 - 14:12 UTC
22 May 2025 - 14:12 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 36°N - 92°W - Izard County, AR
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1751 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1752 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1753 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1754 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1755 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1756 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1757 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1758 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1759 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1800 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1801 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1802 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1803 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1804 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1805 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1806 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1807 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1808 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1809 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1810 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1811 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1812 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1813 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1814 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1815 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1816 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1817 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1818 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1819 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 20 Apr 2025 - 1820 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)