My position as Board President of the Snow & Ice Management Association allows me to hear of certain situations and events prior to their becoming public..... The largest supplier of salt in the USA had a mine shaft collapse. Salt production has been adversly affected by this event. Combined with the continuing ongoing snowfalls over the northern half of the USA and with the repeated ice events in the southern portion of the middle US - it is my understanding that salt rationing will begin in earnest sometime next week. By the end of next week, it is my understanding that private contractors north of the mason-dixson line may be unable to purchase salt. Municipalities will be instructed to begin mixing anti-skid sand with their existing salt piles. Existing salt reserves in the USA will be used up by the end of January at the current pace. It is my understanding that the USA needs 3 weeks of nice weather to alleviate this problem. This is not likely given the long range forecasts and the current position of the polar vortex that is forcing low pressure systems into the lower and mid states. Please plan accordingly, and good luck.