NOAA’s Climate Prediction Center (CPC) issues seasonal climate forecast maps. These maps show the probabilities of unusually warmer/colder or wetter/drier seasons (relative to the 1981-2010 climate averages). Specifically, “A” indicates chances are leaning toward above average, “B” indicates chances are leaning toward below average, and “EC” indicates that there are equal chances for above average, below average, or average conditions. This information is generated from forecast models that use information on ocean, land, and atmospheric conditions such as sea surface temperatures (e.g., El Niño/La Niña conditions), presence/absence of sea ice or snow pack, and tropical weather patterns that can influence the location of the Jetstream and persistent areas of high/low pressure systems during a season. Note: These are seasonal forecasts not predictions with 100% certainty. For example, a single hurricane with heavy rain or a week-long cold air blast/heat wave can impact the outcome of these forecasts. Please see this 2-minute video on how to interpret these maps.