19 Apr 2026 - 05:04 EDT
19 Apr 2026 - 09:04 UTC
19 Apr 2026 - 09:04 UTC
GOES-West Mesoscale view - Geostationary Lightning Mapper at 20°N - 158°W - North Pacific Ocean
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 - 16 Mar 2026 - 0215 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0216 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0217 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0218 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0219 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0220 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0221 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0222 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0223 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0224 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0225 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0226 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0227 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0228 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0229 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0230 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0231 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0232 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0233 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0234 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0235 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0236 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0237 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0238 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0239 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0240 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0241 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0242 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0243 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Mar 2026 - 0244 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)