The National Weather Service forecast office on Guam (where the National Weather Service day begins!) has a very large Area Of Responsibility (AOR), as shown in this image; it stretches from the Equator northward to 25^oN, and from the dateline west to 130^oE. At ca. 1800 UTC on 1 April 2024 (no foolin’!) the RealEarth domain for LightningCast (at this website) was expanded from a relatively small footprint that covered the Marianas to one that covers the entire Guam AOR, including the Marshall and Marianas Islands, as shown by the red rectangle in the toggle above.

CIMSS is also providing AWIPS-ready tiles to the NWS Pacific Region for inclusion into AWIPS machines in Guam and Honolulu, and those AWIPS machines have been modified to accept the new data. The toggle below is courtesy Eric Jacobsen, Pacific Region Headquarters, and shows the domain change in AWIPS.

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