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19 Apr 2024 - 07:01 EDT
19 Apr 2024 - 11:01 UTC

Tropical Storm Julia - Nighttime Microphysics at 12.4°N - 86.2°W

 « Storm overview »

24 frame animation displayed.

To enlarge, pause animation & click the image. Hover over popups to zoom. Use slider to navigate.
Apparent 'jumps' in the animation occur due to adjustments to reflect storm movement.

  

  

  
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1650 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1650 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1700 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1700 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1710 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1710 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1720 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1720 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1730 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1730 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1740 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1740 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1750 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1750 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1800 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1800 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1810 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1810 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1820 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1820 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1830 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1830 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1840 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1840 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1850 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1850 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1900 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1900 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1910 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1910 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1920 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1920 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1930 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1930 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1940 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1940 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1950 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 1950 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2000 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2000 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2010 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2010 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2020 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2020 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2030 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2030 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2040 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 09 Oct 2022 - 2040 UTC

This RGB will be phased out around 1 Feb 2023 and will be replaced by the Day Night Cloud Micro Combo RGB.

Nighttime Microphysics RGB The distinction between low clouds and fog in satellite imagery is challenging. While the difference between the 10.4 and 3.9 μm channels has been a regularly applied product to meet aviation forecast needs, the Nighttime Microphysics (NtMicro) RGB adds another channel difference (12.4- 10.4 μm) as a proxy to cloud thickness and repeats the use of the 10.4 μm thermal channel to enhance areas of warm (i.e. low) clouds where fog is more likely. The NtMicro RGB is also an efficient tool to quickly identify other cloud types in the mid and upper atmosphere.

• For more details, see the Nighttime Microphysics RGB Quick Guide, (PDF, 1.41 MB)