News
11/27/2024, 10:38 am EST

ECM and CFS V2 in Disagreement on 2nd Half of December in U.S.

The cold burst into the U.S. next week remains in the forecast easing in the 11-15-day period. Interestingly, ECM maintains a colder edge to the mid-to-late December forecast based on heating degree day projections while the CFS V2 is much warmer. The HDD forecasts are heavily weighted by the high population East U.S.
11/27/2024, 10:34 am EST

Wet Pattern in Brazil Continues; Shifts South

The rainfall across parts of Brazil and Bolivia has been in the 4-8-inch range during the past week. Aerial coverage of the wet weather pattern is immense and includes most of Brazil (except northern areas) and Argentina (except western areas). Interestingly, the rainfall occurs during the subsidence phase (across the America tropics) of the Madden Julian oscillation (MJO) which normally inspires a drier South America climate.
11/26/2024, 8:40 am EST

East U.S. Cold Days 11-15: GFS/ECM Vs. AI Forecasts

Taking a look at the 11-15-day East U.S. temperature anomaly outlook reveals lingering cold when combining the GFS and ECM forecasts. However, AI models offer wildly different projections (colder or warmer). So...a look at climate diagnostics reveals what direction to rely.
11/26/2024, 8:37 am EST

First New England Snowfall Event of the Season

An early season exercise in snowfall forecasting is offered by the emerging colder weather pattern shifting into the East and the interpretation by the GFS, ECM, and AIFS. Thanksgiving Day looks snowy as cold air filtering into a frontal zone stretched across central and southern New England yields a swath of day-long snow accumulating to 4-8 in. according to GFS.