I don't think the people living in the Southeastern part of the USA thought so. Right after the first of the year, one of the worst ice storms to hit the South occurred, resulting in broken electric lines that took weeks to repair in some areas. If those people prepared for the Y2K disaster they had an alternate source of light, heat, and food reserves until things were restored to normal. Although their preparations were not used for Y2K, this disaster was faced more comfortably because they had made emergency preparations. The answer to this question is that you must hear what the Lord is telling you to do.
Wisdom dictates that having some emergency supplies is just a prudent thing to do.
However, if you have large stores of food, you should ask the Lord if He has need of it to give to others now or if you are to keep it for some future need. However, the greatest preparation that we all need to make is spiritual preparation. The true prophets of God are still warning of troublous times coming to this earth that will include persecution of the saints. Throughout the church history, a period of almost 2000 years, the Lord has given advanced warnings of the coming persecutions to His followers, so that they might flee, prepare for the trials spiritually or physically, or go underground. The Lord has always warned and prepared His people for coming catastrophes, danger, upheaval, persecution or suffering.