27 Apr 2025 - 08:39 EDT
27 Apr 2025 - 12:39 UTC
27 Apr 2025 - 12:39 UTC
GOES-19 Mesoscale view - Geostationary Lightning Mapper at 37°N - 86°W - Barren County, KY
2.5 hour loop - 30 images - 5 minute update
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Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1205 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1206 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1207 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1208 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1209 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1210 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1211 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1212 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1213 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1214 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1215 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1216 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1217 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1218 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1219 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1220 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1221 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1222 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1223 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1224 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1225 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1226 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1227 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1228 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1229 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1230 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1231 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1232 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1233 UTC
Geostationary Lightning Mapper - Lightning flash extent density over IR Band 13 - 27 Apr 2025 - 1234 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)