Once the lineup cards are submitted (approx. 5 minutes before game time), the umpires take control of the field and the crew chief becomes the person who decides whether to delay or postpone a game (and if/when to restart).
A firewood moisture meter can be used to determine the moisture content of your firewood, but are they a necessity or just a novelty? Seasoned firewood is considered to have a moisture content of 20% or less.
We have found that the equilibrium moisture content (EMC) for gypsum board at 50% RH is 0.3%. Samples exposed to 80-85% RH equalize at 0.4-0.5%. At 90-95%, they equalize at 0.7-0.8% MC. At these high levels, wood equalizes at about 20%.