Highlight: MJO Shift to IO/Lingering Snow Cover Push Colder Forecast
Medium-range 6-10 Day Forecast Valid April 11-15, 2018
Medium-range 11-15 Day Forecast Valid April 16-20, 2018
Discussion: A change in the forecast as the northern cold intensifies in the 6-10 day period and advances southward days 11-15 including a much colder change in the North-Central U.S.
Extended-range 16-20 Day Forecast Valid April 21-25, 2018
Discussion: The northern chill shifts into the East in the extended-range.
U.S. HDD Forecast Stays Colder Than Normal Through April
MJO Forecast Supports Colder U.S.
Current Watch & Warnings