27 Apr 2025 - 17:07 EDT
27 Apr 2025 - 21:07 UTC
27 Apr 2025 - 21:07 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 37°N - 86°W - Barren County, KY
30 frame animation displayed.
To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1313 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1314 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1315 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1316 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1317 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1318 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1319 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1320 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1321 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1322 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1323 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1324 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1325 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1326 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1327 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1328 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1329 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1330 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1331 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1332 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1333 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1334 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1335 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1336 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1337 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1338 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1339 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1340 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1341 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1342 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)