A long-lived thunderstorm traveling across northeast Colorado produced a reported Tornado near Fort Morgan, CO late in the afternoon on 6 July 2022. Partially overlapped GOES-West mesoscale sectors yielded 30-second imagery over the region. Recall, the partially overlapped 30-sec imagery cannot be viewed by default in AWIPS, but a simple menu addition unlocks the capability. Figure 1 shows the two GOES-West 1-min mesoscale sectors, offset in time by 30-sec, with the overlap region containing the 30-sec imagery highlighted in yellow.

Focusing on the supercell thunderstorm associated with the tornado report, a clear and long-lived Above Anvil Cirrus Plume, indicative of a particularly strong storm, is present through the 75 minute period (Figure 2). Also notable from the imagery is the orientation of the NWS Tornado warning polygons and Tornado LSRs with respect to the thunderstorm, and updraft region in particular, to the southwest. This is due to parallax, as the thunderstorm top is oriented away from the satellite sub-point, which in the case of GOES-West viewing the central high plains, is an orientation to the north and east of the ground feature. See this post for a graphic on parallax.

Bill Line, NESDIS/STAR and CIRA