what relationship wood u expect 2 find btw the air temp and dewpt temp at ground level if area  covered by fog
490142
Air temp would be at or below dewpoint. When the air is cooled below its dewpoint, water condenses out of the air, which reduces the air's dewpoint. Thus the dewpoint tends to follow the air temperature downwards. When in perfect equilibrium, air temp would be equal to the dewpoint. If the air temp is above the dewpoint the condensation would re-evaporate and the fog would clear.\nAnswerer 3: If you see fog, the water vapor HAS condensed. It just hasn't settled out yet.\nAnswerer 4: Condensation is a simple change of state, not a chemical reaction.
833749
Clouds are water vapor. Think of it like a pocket of fog in the sky.
1178852
Wind does not always accompany fog.
1170130
barometers only measure atmospheric pressure. The higher the humidity, the lower is the pressure . Of course for a same mass of air, the pressure is directly related to temperature (PV=nRT)\n\nso to answer your question: Lower in the tropical forest
71
It isn't as foggy as you might think. Spring and Fall are quite temperate, and San Francisco is renowned for it's "Indian Summer" in September. However, Mark Twain had a point when he said "The coldest Winter I ever spent was Summer in San Francisco."\nThis is because the warm air from inland (where it gets quite hot in the Summer) clashes with the cold air from the surrounding Pacific Ocean and the SF Bay. When that happens, fog forms. Further explanation from http://kids.earth.nasa.gov: "At night, the ground surface cools by radiating heat to space. Air near the ground cools to the dew point temperature, causing water in the air to condense."\nSure it's cold, but fog can be quite beautiful and atmospheric. Just look at the pictures on http://www.goldengatephoto.com/sanfran/thefogrollsin.html  Lovely!
348720
(m)\n\nThe amount of moisture air can retain is determined by its temperature and, to a lesser extent, its pressure. Any sufficient drop in temperature or increase in pressure will cause moisture to condense out of the air. \n\n \n\n Relative humidity is the amount of moisture that is present in the air, compared to the total amount the air could hold at a certain temperature. For example: One cubic foot of air at 80°F, 27°C can hold about 12 grains of moisture.\n\nIf it is holding all 12 grains, it is said to be at 100% relative humidity or saturated. If that same cubic foot of air is holding only 6 grains of moisture, it is at 50% relative humidity.\n  \n Saturation point is the point at which air is holding all the water vapor it can (100% relative humidity). If we added more water vapor to saturated air, the water vapor would condense into a liquid.\n\nRemember that a drop in temperature or increase in pressure will cause moisture to condense out of air that is saturated.\n \n\n  Condensation is the changing of water vapor into a liquid.\n\nDew point is the temperature at which water vapor in the air condenses into a liquid.\n \nPressure dew point is more meaningful because it indicates, at a given pressure, the temperature at which condensate forms in the compressed air lines.
648606
Usually,this is due to irrigation- When I was a boy, I never saw that occur until we got irrigation- and then it was on still, humid days with a rapid drop in temp at night- The moisture that is on the fields, which is much higher than that in the surrounding area, evaporates to a higher degree (obviously, because there is more water) but stays close to the field because of the stillness of the air- then, when the temp drops, the air becomes super-saturated with water, and voila, fog.
249475
Clouds are flat on the bottom because of the condensation level. There is a point as you climb in altitude (not always the same) where the moist rising air reaches the dew point (saturation point) and condenses onto tiny particulate matter in the air. It's nearly flat looking because of the temperature change as you climb is nearly parallel to the ground. Sort of even. Not quite.
108451
it depends on the outside air temp. and humidity , but max will be 5% .
398051
you left out a lot of info lmao.\nwhat is the humidity of the air and what presure are you talking about.\nHeat and cold are regulated by the moisture content of the air.
845064
For the most part the wind will blow the fog away.   However here in the Mohawk Valley, I have seen windy fog.
769934
It's the actual temperature with humidity, wind chill factor (if applicable), dew point and other conditions taken into consideration. There's actually a mathematical equation to figure it out but it may be hard to find since the calculations are done by computers these days.
478517
same as everywhere else, ground and air temp., wind, moisture content and the sun.
56557
Abrupt vertical growth on clouds and/or thick cloud layers...   Winds at the surface are typically more southerly just ahead of a cold front and strong temperature and dewpoint discontinuities are found along cold frontal boundaries.  For instance if you're sitting at 49 degrees with a dewpoint of 41, and a city/town west or northwest of you is sitting at 33, with a dewpoint of 17 - most likely you'll have a cold front between you.  Certainly, not always the case, but is generally true.  Your dewpoint depression (the value of your dewpoint subtracted from your temperature) is also typically less than that found behind a cold front.
169875
in the right conditions and humidity
910516
When it's cold enough and when there is enough moisture in the air
764632
compare...   wind  rain  clouds\n\ncontrast...  cold  cold/warm mix  warm