News
01/16/2026, 5:47 am EST

Expect Snow Cover Expansion East U.S. Later January

Regarding snow cover, the U.S. snow cover is below normal as mid-January arrives. However, given the lengthy negative arctic oscillation (-AO) the remainder of January, inevitable is a southward expansion of snow cover. The GFS snow depth forecast indicates Arkansas to the Tennessee Valley is snow covered in 2 weeks.
01/15/2026, 12:25 pm EST

Regional Stratospheric Warming Episode Eastern North America Late January

At midday, the 12Z GFS indicates evolution of a significant REGIONAL STRATOSPHERIC WARMING EVENT across eastern North America occurring mid-to-late 11-15-day period. The warming is likely in response to a moderate to strong eastward shifting convection phase of the Madden Julian oscillation (MJO) across the equatorial Pacific.
01/14/2026, 12:42 pm EST

Strong -AO, Sneaky Cold and Snowy Surprises Possible

Is the heavy snowstorm indicated by 12Z GFS on the East Coast early next week correct. Of course not! However, the model makes the point that the climate pattern is in a strong negative arctic oscillation. Arctic air is forecast to drift cross-polar from Siberia and infiltrate North America. In this pattern, a snowstorm in the East is possible