Equations for predicting moisture in large fuels were developed from data gathered at Priest River Experimental Forest and Boise Basin Experimental Forest. The most important variables were beginning moisture content of the fuel, duration of precipitation, amount of precipitation, and the sum of the mean temperature of an observation period. Sensitivity and precision of the equations are weak. Predictions could be used as a guide. Moisture content of logs varied according to type of exposure.
Brackebusch, Arthur P. 1975. Gain and loss of moisture in large forest fuels. Res. Pap. INT-RP-173. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 50 p.