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19 May 2025 - 12:13 EDT
19 May 2025 - 16:13 UTC

GOES-West - Sector view: U.S. Pacific Coast - Geostationary Lightning Mapper

2 hour loop - 24 images - 5 minute update

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Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1341 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1341 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1346 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1346 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1351 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1351 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1356 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1356 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1406 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1406 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1411 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1411 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1416 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1416 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1421 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1421 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1426 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1426 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1431 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1431 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1436 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1436 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1441 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1441 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1446 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1446 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1451 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1451 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1456 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1456 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1506 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1506 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1511 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1511 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1516 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1516 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1521 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1521 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1526 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1526 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1531 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1531 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1536 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1536 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1541 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1541 UTC Latitude / Longitude grid
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1546 UTC
Geostationary Lightning Mapper - Lightning flash extent over GeoColor - 19 May 2025 - 1546 UTC Latitude / Longitude grid
legend for Global Lightning Mapper Flash Extent Density - flashes per five minutes

GLM Extent Density of Lightning 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 this visualization, GLM is superimposed on a GeoColor background image.

GLM data is produced between 54°N and 54°S.

• For more details, see the Geostationary Lightning Mapper Quick Guide, (PDF, 1.98 MB)