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16 Jan 2021 - 23:20 EST
17 Jan 2021 - 04:20 UTC

PTC Iota - Nighttime Microphysics at 13.8°N - 89.5°W

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 used to distinguish clouds from fog - 18 Nov 2020 - 1900 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1900 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1910 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1910 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1920 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1920 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1930 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1930 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1940 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1940 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1950 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 1950 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2000 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2000 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2010 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2010 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2020 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2020 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2030 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2030 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2040 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2040 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2050 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2050 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2100 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2100 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2110 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2110 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2120 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2120 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2130 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2130 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2140 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2140 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2150 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2150 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2200 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2200 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2210 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2210 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2220 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2220 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2230 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2230 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2240 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2240 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2250 UTC
Nighttime Microphysics - RGB used to distinguish clouds from fog - 18 Nov 2020 - 2250 UTC
 

About Nighttime Microphysics

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)

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