14 Jul 2025 - 17:05 EDT
14 Jul 2025 - 21:05 UTC
14 Jul 2025 - 21:05 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 55°N - 149°W - North Pacific Ocean
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2010 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2011 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2012 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2013 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2014 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2015 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2016 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2017 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2018 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2019 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2020 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2021 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2022 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2023 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2024 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2025 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2026 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2027 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2028 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2029 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2030 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2031 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2032 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2033 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2034 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2035 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2036 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2037 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2038 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 13 Jul 2025 - 2039 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)