21 Jun 2025 - 00:23 EDT
21 Jun 2025 - 04:23 UTC
21 Jun 2025 - 04:23 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 55°N - 149°W - North Pacific Ocean
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 - 21 Jun 2025 - 0343 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0344 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0345 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0346 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0347 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0348 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0349 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0350 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0351 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0352 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0353 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0354 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0355 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0356 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0403 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0404 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0405 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0406 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0407 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0408 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0409 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0410 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0411 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0412 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0413 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0414 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0415 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0416 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0417 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 21 Jun 2025 - 0418 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)