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Foggy River
:-)
Cheers Joe wrote: Radiation Fog - occurs under clear, calm skies when infrared radiation (heat) escapes to upper atmosphere and outer space and the air is cooled to its dewpoint. Sometimes called valley fog or ground fog and is the most common fog over land in the world. Advection Fog - occurs when warm, humid air is cooled to its dewpoint by coming into contact with a cooler surface below. Snow, ice, and cold water are common surfaces that cause advection fog. MC is correct. The Mississippi is cold, and lots of warm air from the south flows into the delta. Steam Fog - occurs when cooler air rests above warmer water and vapor that evaporates into the air cools to its dewpoint. Sometimes called Arctic sea smoke. You see this on your local lakes many times, just not to the scale seen in the artics. And when it starts it weird looking like snakes growing out of the sea. Upslope Fog - occurs when air is forced to rise up a large slope and cools (adiabatically) to its dewpoint. Common in mountainous states. Frontal Fog - also knows as precipitation fog and occurs when rain drops fall into unsaturated, cooler air below. As the drops evaporate, water vapor is introduced into the cooler air. Very quickly, the vapor condenses into a small fog droplet. Sorry Katy 5 not 4 types. Joe MSV RedCloud |
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