22 Apr 2025 - 23:16 EDT
23 Apr 2025 - 03:16 UTC
23 Apr 2025 - 03:16 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 33°N - 99°W - Throckmorton County, TX
2.5 hour loop - 30 images - 5 minute update
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0236 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0237 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0238 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0239 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0240 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0241 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0242 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0243 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0244 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0245 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0246 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0247 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0248 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0249 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0250 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0251 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0252 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0253 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0254 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0255 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0256 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0303 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0304 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0305 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0306 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0307 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0308 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0309 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0310 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 23 Apr 2025 - 0311 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)