12 Nov 2025 - 10:11 EST
12 Nov 2025 - 15:11 UTC
12 Nov 2025 - 15:11 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 39°N - 119°W - Lyon County, NV
2.5 hour loop - 30 images - 5 minute update
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 - 12 Nov 2025 - 1438 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1439 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1440 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1441 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1442 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1443 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1444 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1445 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1446 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1447 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1448 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1449 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1450 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1451 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1452 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1453 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1454 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1455 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1456 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1457 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1458 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1459 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1500 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1501 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1502 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1503 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1504 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1505 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1506 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 12 Nov 2025 - 1507 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)