The large field of view of the Geostationary Lightning Mapper (GLM) offers forecasters a new way to monitor tropical cyclones. In particular, the GLM will offer the opportunity to monitor total lightning (i.e., cloud-to-ground and intra-cloud) trends over the entire life cycle of the system.
The past few days have offered a very interesting opportunity with three tropical cyclones in the eastern Pacific basin; Tropical Storm Greg, Hurricane Hilary, and Tropical Storm Irwin. The movie covers from 1310 UTC on July 23 through 1610 UTC on July 24. A few features are interesting to point out. First, notice the amount of lightning activity and diurnal change associated with the storms across Mexico (upper right of movie) versus the activity with the three tropical systems. Also, check out the location of the lightning in tropical systems and whether it is in the central core or the outer bands.
Figure 1 is a still from the linked mp4 movie that is approximately 37 megabytes in size.
NOTE: NOAA’s GOES-16 satellite has not been declared operational and its data are preliminary and undergoing testing. Users receiving these data through any dissemination means (including, but not limited to, PDA and GRB) assume all risk related to their use of GOES-16 data and NOAA disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose.