NOAA's Climate Prediction Center
fine-tuned their April outlook
on Monday. Warmer than normal temperatures are still expected from the Northeast and Great Lakes southward to the Gulf of Mexico. An expanded area of colder than average temperatures are now forecast throughout most of the Northwest. The initial outlook
, issued on March 19th, only had a small area of below normal temperatures in Montana and the western Dakotas.
A wet month is in the forecast from the Upper Midwest through most of the Plains, Mississippi, and Tennessee Valleys. An area of above average precipitation has been added to the West as well. This will help drought conditions in the Southern Plains and West, but drought development is likely in Florida.
The minor changes in the outlook can be mainly attributed to updated model forecasts, current trends, and observations. Neutral sea surface temperatures are expected in the Pacific Ocean, with no influence from an El Nino or La Nina.