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On October 17, 2024, NOAA released initial imagery from
 the GOES-19 lightning mapper.

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Launched on June 25, GOES-19 is NOAA’s newest geostationary satellite.

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Onboard GOES-19 is the Geostationary Lightning Mapper (GLM).

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GLM continuously detects and maps lightning activity

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over the Americas and adjacent ocean regions.

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Recently, the GOES-19 GLM detected and monitored lightning activity

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in two extremely hazardous hurricanes.

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On September 24, the GLM observed a widespread cluster of

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thunderstorms consolidating into Tropical Storm Helene.

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Continuous lightning in the outer rain bands was accompanied by

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occasional eyewall lightning as Hurricane Helene rapidly intensified.

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Frequent lightning enveloped the eyewall as the storm intensified on its

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approach to the Florida coastline.

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Such widespread weather events present particular challenges to

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to the aviation industry.

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GLM data helps pilots and air traffic controllers route flights to maximize

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safety and minimize economic impacts.

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Only two weeks after Helene formed, Hurricane Milton developed.

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Continuous eyewall lightning revealed the inner core as

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Milton rapidly intensified.

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Eyewall lightning persisted as the storm grew in size and strength

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in the southern Gulf of Mexico.

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Frequent lightning was observed in intense rain bands that produced

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widespread flash flooding and tornado activity across Florida.

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On October 9, Hurricane Milton made landfall near Siesta Key, Florida,

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as a Category 3 hurricane.

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GOES-19 is undergoing post-launch testing to prepare it for operations.

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NOAA plans for GOES-19 to begin operating as GOES East in April 2025.

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Earth From Orbit: GOES-19 Lightning Mapper Initial Imagery

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Imagery from GOES-19 during the post-launch testing phase should be considered preliminary and non-operational.

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