Weather and Forest Fire Hazard with Special Reference to the Upper Altitudinal Spruce-Balsam Fir Region of Northern New York

With the alinement chart 3 presented herein, local forest officers can estimate from data obtained from a sling psychrometer current duff moisture content and degree of inflammahility. When used in connection with daily weather forecasts, such fuel moisture-inflammability estimates enable one to predict the degree of future forest fire hazard. Besides showing that a definite relationship exists between weather and forest fire hazard, the present investigation has disclosed that in the upper altitudinal spruce-balsam fir region in the Northeast almost complete protection against the drying out of the inflammable materials on the forest floor is given by the evergreen crowns themselves.