7 September 1996

MISTI over pass was at 23:23 UT.
NOAA 14 passed at 07:46 and 19:05 UT.
NOAA 12 passed EVG at 12:39 and 23:52 UT.
GOES 8 analysis at 23:46 UT.
GOES 8 MPEG loop.

Summary

The HSRL came on at 21:48 UT. It was under light rain until 23:45 UT. Cloud base rose to 7 km and the lidar remain block from penetrating to the cloud top the entire day.

GOES 8 IR images show a large anvil covering most of south Florida. This anvil begins dissipating and moving to the west at 23:00 UT.

Cloud heights on GOES 8 (at 23:46 UT) ranged from 7.1-11.0 km. The NOAA 12 HIRS was performing calibrations over EVG and only took data about 45 km north and south of Everglades City. It found cloud heights of 8.9-11.0 km south of EVG while only the boundary layer clouds at 3.1 km were reported north of EVG.

Effective Emissivities ranged from 0.24 on the margins of the anvil to the east to 1.00 in its center. Immediately over EVG at 23:46 UT, EE=0.96-0.98 according to GOES 8. This is a visible optical depth > 6.0. Since the MISTI over pass occured 18 minutes before the GOES-8 analysis, and the GOES-8 images show some dissipation during this time, we estimate that the clouds visible optical depth exceeded 6.0 during the MISTI over pass.

The blackbody window channel temperatures ranged 242-252 K while the cloud level temperatures ranged 242-250 K.