8 Feb 2025 - 02:41 EST
8 Feb 2025 - 07:41 UTC
8 Feb 2025 - 07:41 UTC
GOES-East Mesoscale view - Geostationary Lightning Mapper at 27°N - 95°W - meso LOOKUP NEEDED for 27N-95W
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2300 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2301 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2302 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2303 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2304 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2305 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2306 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2307 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2308 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2309 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2310 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2311 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2312 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2313 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2314 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2315 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2316 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2317 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2318 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2319 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2320 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2321 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2322 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2323 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2324 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2325 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2326 UTC

Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Jan 2025 - 2327 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)