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18 Apr 2024 - 08:57 EDT
18 Apr 2024 - 12:57 UTC

Post-tropical Cyclone Four-E - Nighttime Microphysics at 20.9°N - 112.9°W

 « Storm overview »

12 frame animation displayed.

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Apparent 'jumps' in the animation occur due to adjustments to reflect storm movement.

  

  

  
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0630 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0630 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0640 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0640 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0700 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0700 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0710 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0710 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0720 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0720 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0730 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0730 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0740 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0740 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0750 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0750 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0810 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0810 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0820 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0820 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0840 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0840 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0850 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 01 Jul 2020 - 0850 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)