The Weather Stress Index, or WSI, is a relative measure of the weather conditions, often used as a comfort indicator. The index, a number between 0 and 100, represents the percentage of time in the past with temperatures below the current temperature, for a given location, day and time.
Best Answer:  A free lease means that the horse is leased to someone without any payment to the owner. Now, depending on the contract, the person leasing the horse may have to pay for board, vet, farrier, etc. although some lease agreements may require the owner to pay those bills.
A lease is a contract that defines the rights and responsibilities of both the landlord and the tenant. A lease can be oral or written. If a lease is for one year or less, an oral lease is as binding on both parties as a written lease. But the terms of an oral lease may be difficult to prove.