16 Apr 2026 - 10:04 EDT
16 Apr 2026 - 14:04 UTC
16 Apr 2026 - 14:04 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 38°N - 75°W - Near Worcester County, MD
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 - 16 Apr 2026 - 1321 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1322 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1323 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1324 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1325 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1326 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1327 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1328 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1329 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1330 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1331 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1332 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1333 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1334 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1335 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1336 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1337 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1338 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1339 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1340 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1341 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1342 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1343 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1344 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1345 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1346 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1347 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1348 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1349 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 16 Apr 2026 - 1350 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)