At 6:15 PM MDT, it's drizzling at NearSys Station and we're 100% overcast with nimbostratus. The Seek Reveal thermal imager indicated the ground temperature was 24*F and the sky temperature was 14 *F. Assuming a moist adiabatic lapse rate of 3.0 *F, the clouds overhead have a base of 3,300 feet.
There's currently no METAR for the Caldwell airport (KEUL) to cross check this estimate of cloud base height.
This blog entry was updated to correct for the error of using the dry adiabatic lapse rate.
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