Last winter, our weather was influenced by El Niño, the warmer-than-normal sea-surface temperature in the south-central Pacific Ocean. During El Niño, we often have milder winters with less snowfall because the subtropical jet stream becomes stronger as moisture often flows along that path into California, the desert Southwest, Texas and the Deep South. This was the case last winter. Within the last month, sea-surface temperatures near the west coast of South America and along the equator have been cooling at a rapid rate.