11/29/2020, 12:41 pm EST

La Nina Storm Strikes The East

Now that tropical cyclone season is winding down we enter the next persistent issue for meteorological winter 2020-21 which is La Nina storms. La Nina storms produce three types of high impact weather certainly evident in the SUN/MON forecast.
11/23/2020, 4:28 am EST

Under-achieving November Rainfall in Australia.

A La Nina climate is normally wetter than normal across northern and eastern Australia. However, November has been dry in these sectors. Contributing to the dryness is the subsidence phase of the Madden Julian oscillation at the tropical longitudes of Australia.
11/18/2020, 11:36 am EST

Forecast Models Rainfall Projections Are Poor Across South America Past 30 Days

Forecast models have over-forecast rainfall across the dry-to-drought portion of Brazil consistently the past 30 days for both short-range and medium-range timescales. Forecast models have a tendency to turn northwestern South America wet with a fetch of that moisture across Brazil (at times). Instead the northwest South America dry pattern (and drought) persists and central/south Brazil rains are failing.