Reviewing the Products, Part 2

Answer the final two questions below the tabs about the satellite products.

Water Vapour

MSG-9 water vapour 6.2 micrometerimage over Kenya at 0012 UTC 20 July 2012

Night Microphysics

MSG-9 Night Microphysics RGB over Kenya from 20 July 2012 at 0012 UTC

IR Fog Product

MSG-9 fog product over Kenya at 0012 UTC 20 July 2012

CLAI

MSG CLAI or Cloud Analysis Image over Kenya at 2345 UTC 19 July 2012

In general, can you differentiate low clouds from fog in these satellite products? Select the correct option.

The correct answer is B.

Satellite imagery shows data from cloud-top level, making it difficult to differentiate between fog and stratus. We can, however, sometimes identify fog when it follows terrain features, such as mountains, or if we animate multiple images.

Please make a selection.

Based on the current weather situation, how might conditions evolve? Select the correct option.

The correct answer is D.

Conditions need to be closely monitored to see if fog forms at the airport with additional nighttime cooling. Winds were calm at 00 UTC so A is incorrect. We've seen that the atmosphere is stable up to 700 hPa, so B is incorrect. With sunrise, we would anticipate that the fog and low clouds might be more likely to dissipate, so C is incorrect.

Please make a selection.