8 Feb 2026 - 06:59 EST
8 Feb 2026 - 11:59 UTC
8 Feb 2026 - 11:59 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 32°N - 97°W - Hill County, TX
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2330 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2331 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2332 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2333 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2334 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2335 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2336 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2337 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2338 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2339 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2340 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2341 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2342 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2343 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2344 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2345 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2346 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2347 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2348 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2349 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2350 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2351 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2352 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2353 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2354 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2355 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2356 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2357 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2358 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 14 Jan 2026 - 2359 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)