"K"

K Designated letter for "SMOKE"
Katabatic Wind: A very cold dowslope wind which may reach 100 mph as it desends.

Kelvin Temperatuure Scale:Named after "Lord Kelvin" in the mid 1800s.
A Irish born physicist and engineer. Where - 273 degrees "C" is "Absolute Zero" and is -460 degs. R.
Where the freezing point of water is 492 Degs. K. The boiling point of water is 672 degs. K.
-273 Degs. is considered to be the lowest temperature of anything in the universe.
Kinetic Energy: Any object in motion produces "Kinetic Energy" which produces heat.

K-Index Formula:


(500 mb temp. -850 mb temp) + 850 mb Dew Point - 700 mb Temp/Dewpoint Depression.


Example:

500 mb Temp. -23        850 mb Dew Point = 7
850 mb Temp. -10        700 mb Temp. = 20, Dew Point = 10   Depression = 10
            -----       
             -13

K-Index = -13 + 7 = -6 +10 = +4 = K-Index


A K-Index 15 or less, no thunderstorms.  26 indicates a chance of thunderstorms.
32 is a good chance. 36 is likely. 40 Thunderstorms a 100 %.