LightningCast domain size over American Samoa increased

Images

At the request of Pacific Region Headquarters, the LightningCast domain centered on American Samoa has increased. At 1840 UTC, the domain roughly doubled, as shown in the two screen shots below from the RealEarth site. The Red Box captures the size of the previous domain; note that at 1900 UTC the contours extend from 160oW westward to the dateline. The north-south domain size has also increased. The 1940 UTC image at the bottom of this post includes the new domain.

NOAA/CIMSS ProbSevere LightningCast Probabilities over the American Samoa domain, 1830 and 1900 UTC on 6 May 2024 (Click to enlarge)
NOAA/CIMSS ProbSevere LightningCast Probabilities over the new American Samoa domain shown in red, 1940 UTC on 6 May 2024 (Click to enlarge)

Users will note that contours that touch the dateline in RealEarth will be drawn incorrectly (as shown here). This is being investigated. The AWIPS screen-capture, below, courtesy Eric Jacobsen, NWS/PRH, shows the display in AWIPS.

AWIPS Screen-capture of LightningCast Probabilities overlain on top of GOES-18 Band 13 infrared (10.3 µm) imagery, 1950 UTC on 6 may 2024 (Click to enlarge)

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