downsloping

Adjective

 * 1) Sloping downward.

Noun

 * 1)  Air descending a slope, resulting in adiabatic warming and reduction in relative humidity.
 * 2) * 2020 NWS Boston 1103 AM EDT forecast discussion:
 * While dewpoints are still fairly elevated, due to west downsloping dewpoints are about 2-4 degrees lower than yesterday in the mid to upper 60s.
 * While dewpoints are still fairly elevated, due to west downsloping dewpoints are about 2-4 degrees lower than yesterday in the mid to upper 60s.