8 Mar 2026 - 23:25 EDT
9 Mar 2026 - 03:25 UTC
9 Mar 2026 - 03:25 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 37°N - 86°W - Barren County, KY
2.5 hour loop - 30 images - 5 minute update
To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1835 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1836 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1837 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1838 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1839 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1840 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1841 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1842 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1843 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 08 Mar 2026 - 1844 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0300 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0301 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0302 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0303 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0304 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0305 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0306 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0307 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0308 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0309 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0310 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0311 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0312 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0313 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0314 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0315 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0316 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0317 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0318 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 09 Mar 2026 - 0319 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)