19 Jan 2025 - 14:33 EST
19 Jan 2025 - 19:33 UTC
19 Jan 2025 - 19:33 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 18°N - 161°W - North Pacific Ocean
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0330 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0331 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0332 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0333 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0334 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0335 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0336 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0337 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0338 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0339 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0340 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0341 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0342 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0343 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0344 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0345 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0346 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0347 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0348 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0349 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0350 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0351 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0352 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0353 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0354 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0355 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0356 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0357 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0358 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 17 May 2024 - 0359 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)