13 Nov 2025 - 19:31 EST
14 Nov 2025 - 00:31 UTC
14 Nov 2025 - 00:31 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 29°N - 63°W - North Atlantic Ocean
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1300 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1301 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1302 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1303 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1304 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1305 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1306 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1307 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1308 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1309 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1310 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1311 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1312 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1313 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1314 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1315 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1316 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1317 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1318 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1319 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1320 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1321 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1322 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1323 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1324 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1325 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1326 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1327 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1328 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Oct 2025 - 1329 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)