December 2024 - Climate Impact Company

News

12/03/2024, 8:36 am EST

Madden Julian Oscillation Influence Warms U.S. Into Mid-December

A look at the primary climate controllers through the middle third of December yields an active and moderate to strong Madden Julian oscillation (MJO) across Maritime Continent. MJO phase_5 has a strong warming influence on the U.S. climate which is in the current medium-range forecast.

12/02/2024, 4:25 pm EST

Cold Stratosphere Just-after Mid-month in Polar Region

In 16 days (Dec. 18) the GFS indicates a very cold stratosphere in the polar region. A classic stratospheric warming event causing mid-latitude arctic air outbreaks would be just the opposite of the forecast. There is some stratospheric warming across Asia in 16 days possibly inspiring some arctic air across parts of Russia to Tibet.

12/02/2024, 8:00 am EST

Potential Regenerating Cold in the Northeast U.S. Early January

Both GFS and ECM regenerate a cold upper trough in the Northeast U.S. to Quebec sector as the middle third of January approaches. The forecast explains why a surge in U.S. heating demand is projected by CFS V2 and ECM for the week of Jan. 3-9.

12/02/2024, 5:53 am EST

Late Season Surge Brings Another Very Active North Atlantic TC Season

The 2024 North Atlantic basin tropical cyclone season ended on November 30. This year, the final tally on tropical cyclone activity was 18 tropical storms, 11 hurricanes, and 5 major hurricanes with an accumulated cyclone energy (ACE) index of 161.6. The above normal activity maintains the recent pattern (2016-24) of very active (and dangerous) tropical cyclone seasons.