NOAA GOES Image Viewer website
16 Aug 2022 - 18:16 EDT
16 Aug 2022 - 22:16 UTC

GOES-18 Mesoscale view - Day Cloud Phase at 19°S - 174°W - Near Tonga

4 frame animation displayed. This mesoscale location is no longer being actively produced.

To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.

  

  

  
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1400 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1400 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1402 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1402 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1603 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1603 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1605 UTC
Day Cloud Phase - RGB for evaluating phase of cooling cloud tops - 22 Jul 2022 - 1605 UTC
 

About Day Cloud Phase

This RGB is used to evaluate the phase of cooling cloud tops to monitor convective initiation, storm growth, and decay. It can also be used to identify snow on the ground. The Day Cloud Phase Distinction RGB takes advantage of cloud reflectance differences between the visible and near infrared channels and temperature variances between land and clouds in the infrared to provide increased contrast between background surfaces and phases of clouds (i.e., water vs. ice). Due to its reliance on visible bands 2 and 5, it is onlyusable during daylight hours. This RGB composite was developed by the Japan Meteorological Agency (JMA) for Himawari-8. Interpretation is still under investigation.

• For more details, see the Day Cloud Phase Product Guide, (PDF, 757 KB)