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I’v see this formula in several places for estimating the height of cloud bases:CB ≈ (T - Td)*1000/4.4I’m puzzled by the 4.4. I would expect a number for the dry adiabatic lapse rate, but Not 4.4

The rate at which air cools is estimated at 5.4°F per 1000 feet of altitude. The dew point decreases slower - at about 1.0°F per 1000 feet. That means that per 1000 feet, the spread decreases by 4.4°F.

Quote from: attherubicon on March 28, 2021, 09:38:29 PMI’v see this formula in several places for estimating the height of cloud bases:CB ≈ (T - Td)*1000/4.4I’m puzzled by the 4.4. I would expect a number for the dry adiabatic lapse rate, but Not 4.4The rate at which air cools is estimated at 5.4°F per 1000 feet of altitude.