Key Messages from the NOAA Climate Prediction Center
Issued November 14, 2025
Significant Pattern Change Increasingly Likely Across Much of the Country
Following a warm start to November in the West and a cold start in the East, the combined effects from the current La Niņa, the Madden-Julian Oscillation (MJO), and the potential for a rare November Sudden Stratospheric Warming (SSW) event, may usher in a significant pattern change later in the month and into early December.
(a) In the week leading up to and including Thanksgiving, a colder pattern is likely for the West while milder air overspreads the East.
(b) Later in November into early December, a transition to a colder pattern is forecast across much of the central and northern U.S.
This pattern change favors a transition to more winter-like conditions across the west-central and central US including much below normal temperatures and the potential for heavy snow.
Interests are encouraged to review Winter Weather Safety resources in advance of this pattern change at https://www.weather.gov/safety/winter