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9 Dec 2024 - 18:02 EST
9 Dec 2024 - 23:02 UTC

Post-tropical Cyclone Hermine - Geostationary Lightning Mapper at 23.6°N - 20.2°W

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24 frame animation displayed.

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Apparent 'jumps' in the animation occur due to adjustments to reflect storm movement.

  

  

  
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1501 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1501 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1506 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1506 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1511 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1511 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1516 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1516 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1521 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1521 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1526 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1526 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1531 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1531 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1536 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1536 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1541 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1541 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1546 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1546 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1551 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1551 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1556 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1556 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1601 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1601 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1606 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1606 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1611 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1611 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1616 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1616 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1621 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1621 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1626 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1626 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1631 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1631 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1636 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1636 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1641 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1641 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1646 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1646 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1651 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1651 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1656 UTC
Geostationary Lightning Mapper - Lightning flash extent density over GeoColor - 25 Sep 2022 - 1656 UTC
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)