NOAA GOES Image Viewer website
20 Oct 2020 - 08:37 EDT
20 Oct 2020 - 12:37 UTC

GOES-West - Sector view: Alaska - Day Cloud Phase

2 hour loop - 12 images - 10 minute update

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Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 0945 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 0945 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1000 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1000 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1015 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1015 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1030 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1030 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1045 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1045 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1100 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1100 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1115 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1115 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1130 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1130 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1145 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1145 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1200 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1200 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1210 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1210 UTC Latitude / Longitude grid
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1220 UTC
Day Cloud Phase - RGB used to evaluate the phase of cooling cloud tops - 20 Oct 2020 - 1220 UTC Latitude / Longitude grid
 

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)

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