Observing & Predicting

Natural variability can explain much of Earth's average temperature variation since the end of the last ice age, but over the past century, global average temperature has risen from near the coldest to the warmest levels in the past 11,300 years.

Friday, November 1, 2013

  • (VIDEO) Without a strong influence from El Niño or La Niña, the U.S. winter climate is less predictable. Based on recent trends, however, drought is likely to develop in the Southwest and Southeast over the 2013-14 winter.

  • Traditional weather forecasts consist of weather maps that predict exactly how much rain may fall or the maximum daily temperature of an area. NOAA climate outlooks forecast the odds that future weather conditions will be above, below, or near normal.

  • The U.S. Drought Portal offers access to maps, data, and expert assessments through easy-to-use tools designed to help decision makers monitor, plan for, and recover from water shortages.

  • October in Alaska this year was more like September, with warmth and rain in place of autumn chill and snow. Wind anomalies related to unusual pressure patterns conspired to bring a steady stream of warm, wet air from southerly latitudes into Alaska.